National Library of Energy BETA

Sample records for distributed energy systems

  1. Distributed Energy Systems Corp | Open Energy Information

    Open Energy Info (EERE)

    Distributed Energy Systems Corp Jump to: navigation, search Name: Distributed Energy Systems Corp Place: Wallingford, Connecticut Zip: CT 06492 Product: The former holding company...

  2. Enhanced distributed energy resource system

    DOE Patents [OSTI]

    Atcitty, Stanley; Clark, Nancy H.; Boyes, John D.; Ranade, Satishkumar J.

    2007-07-03

    A power transmission system including a direct current power source electrically connected to a conversion device for converting direct current into alternating current, a conversion device connected to a power distribution system through a junction, an energy storage device capable of producing direct current connected to a converter, where the converter, such as an insulated gate bipolar transistor, converts direct current from an energy storage device into alternating current and supplies the current to the junction and subsequently to the power distribution system. A microprocessor controller, connected to a sampling and feedback module and the converter, determines when the current load is higher than a set threshold value, requiring triggering of the converter to supply supplemental current to the power transmission system.

  3. Distributed Energy Systems Integration Group (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2009-10-01

    Factsheet developed to describe the activites of the Distributed Energy Systems Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

  4. NREL: Electric Infrastructure Systems Research - Distributed Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Resources Test Facility Electricity Integration Research Printable Version Distributed Energy Resources Test Facility NREL's Distributed Energy Resources Test Facility (DERTF) is a working laboratory for interconnection and systems integration testing. This state-of-the-art facility includes generation, storage, and interconnection technologies as well as electric power system equipment capable of simulating a real-world electric system. Photo of the Distributed Energy Resources Test

  5. NREL: Electric Infrastructure Systems Research - Distributed Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Resources Test Facility Virtual Tour Electricity Integration Research Printable Version Distributed Energy Resources Test Facility Virtual Tour The Distributed Energy Resources Test Facility (DERTF), located at the National Renewable Energy Laboratory in Golden, Colorado, was designed to assist the distributed power industry in the development and testing of distributed power systems. Researchers use state-of-the-art laboratories and outdoor test beds to characterize the performance and

  6. Community Energy: Analysis of Hydrogen Distributed Energy Systems...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Community Energy: Analysis of Hydrogen Distributed Energy Systems with Photovoltaics for Load Leveling and Vehicle Refueling D. Steward National Renewable Energy Laboratory J. ...

  7. Ductless Hydronic Distribution Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distribution Systems Ductless Hydronic Distribution Systems This presentation is from a Building America webinar conducted on November 8, 2011, by the Alliance for Residential Building Innovation (ARBI) about ductless hydronic distribution systems. PDF icon arbi_hydronic_webinar.pdf More Documents & Publications Ductless Hydronic Distribution Issue #2: What Emerging Innovations are the Key to Future Homes? Building America Best Practices Series Vol. 14: Energy Renovations - HVAC: A Guide for

  8. Distribution System Voltage Regulation by Distributed Energy Resources

    SciTech Connect (OSTI)

    Ceylan, Oguzhan; Liu, Guodong; Xu, Yan; Tomsovic, Kevin

    2014-01-01

    This paper proposes a control method to regulate voltages in 3 phase unbalanced electrical distribution systems. A constrained optimization problem to minimize voltage deviations and maximize distributed energy resource (DER) active power output is solved by harmony search algorithm. IEEE 13 Bus Distribution Test System was modified to test three different cases: a) only voltage regulator controlled system b) only DER controlled system and c) both voltage regulator and DER controlled system. The simulation results show that systems with both voltage regulators and DER control provide better voltage profile.

  9. Distributed Resource Energy Analysis and Management System (DREAMS...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distributed Resource Energy Analysis and Management System (DREAMS) Development for Real-time Grid Operations Distributed Resource Energy Analysis and Management System (DREAMS) ...

  10. Energy Efficient HVAC System for Distributed Cooling/Heating...

    Broader source: Energy.gov (indexed) [DOE]

    Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Energy Efficient HVAC System for Distributed Cooling...

  11. Measuring the Resilience of Energy Distribution Systems

    Broader source: Energy.gov [DOE]

    This report provides a review of existing resilience metrics for electric, oil, and natural gas distribution systems. The report summarizes the concepts addressed by measures of resilience, describes a framework for organizing alternative metrics used to measure resilience of energy distribution systems, and reviews the state of metrics for resilience of such systems. The framework organized resilience metrics into five categories – system inputs, capacities, capabilities, performance and outcomes – and existing metrics were evaluated within the context of this framework. The report finds more metrics for the electricity system than for oil and gas and that the literature pays greater attention to metrics at the facility level. Also, there were many performance measures identified at the system and regional level and these metrics were determined to be relatively well developed. In comparison, outcome measures were identified at the system, regional and national levels, but they were judged to be relatively less well developed. To improve resilience metrics, the report recommends standardizing data on inputs and capacities at the facility and system levels; developing measures of capabilities at the system and regional levels; and improving understanding of how capabilities and performance translate to regional and national outcomes.

  12. Heat Distribution Systems | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Forced-air systems use ducts that can also be used for central air conditioning and heat pump systems. Radiant heating systems also have unique heat distribution systems. That...

  13. Heat Distribution Systems | Department of Energy

    Energy Savers [EERE]

    Home Heating Systems » Heat Distribution Systems Heat Distribution Systems Radiators are used in steam and hot water heating. | Photo courtesy of ©iStockphoto/Jot Radiators are used in steam and hot water heating. | Photo courtesy of ©iStockphoto/Jot Heat is distributed through your home in a variety of ways. Forced-air systems use ducts that can also be used for central air conditioning and heat pump systems. Radiant heating systems also have unique heat distribution systems. That leaves

  14. Heat Distribution Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    & Cool » Home Heating Systems » Heat Distribution Systems Heat Distribution Systems Radiators are used in steam and hot water heating. | Photo courtesy of ©iStockphoto/Jot Radiators are used in steam and hot water heating. | Photo courtesy of ©iStockphoto/Jot Heat is distributed through your home in a variety of ways. Forced-air systems use ducts that can also be used for central air conditioning and heat pump systems. Radiant heating systems also have unique heat distribution systems.

  15. Energy Efficiency of Distributed Environmental Control Systems

    SciTech Connect (OSTI)

    Khalifa, H. Ezzat; Isik, Can; Dannenhoffer, John F. III

    2011-02-23

    In this report, we present an analytical evaluation of the potential of occupant-regulated distributed environmental control systems (DECS) to enhance individual occupant thermal comfort in an office building with no increase, and possibly even a decrease in annual energy consumption. To this end we developed and applied several analytical models that allowed us to optimize comfort and energy consumption in partitioned office buildings equipped with either conventional central HVAC systems or occupant-regulated DECS. Our approach involved the following interrelated components: 1. Development of a simplified lumped-parameter thermal circuit model to compute the annual energy consumption. This was necessitated by the need to perform tens of thousands of optimization calculations involving different US climatic regions, and different occupant thermal preferences of a population of ~50 office occupants. Yearly transient simulations using TRNSYS, a time-dependent building energy modeling program, were run to determine the robustness of the simplified approach against time-dependent simulations. The simplified model predicts yearly energy consumption within approximately 0.6% of an equivalent transient simulation. Simulations of building energy usage were run for a wide variety of climatic regions and control scenarios, including traditional “one-size-fits-all” (OSFA) control; providing a uniform temperature to the entire building, and occupant-selected “have-it-your-way” (HIYW) control with a thermostat at each workstation. The thermal model shows that, un-optimized, DECS would lead to an increase in building energy consumption between 3-16% compared to the conventional approach depending on the climate regional and personal preferences of building occupants. Variations in building shape had little impact in the relative energy usage. 2. Development of a gradient-based optimization method to minimize energy consumption of DECS while keeping each occupant’s thermal dissatisfaction below a given threshold. The DECS energy usage was calculated using the simplified thermal model. OSFA control; providing a uniform temperature to the entire building, and occupant-selected HIYW control with a thermostat at each workstation were implemented for 3 cities representing 3 different climatic regions and control scenarios. It is shown that optimization allows DECS to deliver a higher level of individual and population thermal comfort while achieving annual energy savings between 14 and 26% compared to OSFA. The optimization model also allowed us to study the influence of the partitions’ thermal resistance and the variability of internal loads at each office. These influences didn’t make significant changes in the optimized energy consumption relative to OSFA. The results show that it is possible to provide thermal comfort for each occupant while saving energy compared to OSFA Furthermore, to simplify the implementation of this approach, a fuzzy logic system has been developed to generalize the overall optimization strategy. Its performance was almost as good as the gradient system. The fuzzy system provided thermal comfort to each occupant and saved energy compared to OSFA. The energy savings of the fuzzy system were not as high as for the gradient-optimized system, but the fuzzy system avoided complete connectivity, and the optimization did not have to be repeated for each population. 3. We employed a detailed CFD model of adjacent occupied cubicles to extend the thermal-circuit model in three significant ways: (a) relax the “office wall” requirement by allowing energy to flow between zones via advection as well as conduction, (b) improve the comfort model to account both for radiation as well as convection heat transfer, and (c) support ventilation systems in which the temperature is stratified, such as in underfloor air distribution systems. Initially, three-dimensional CFD simulations of several cubicle configurations, with an adjoining corridor, were performed both to understand the advection between cubicles and the resulting temperature stratification. These simulations showed that the advective flow between cubicles is very significant and severely limits the occupants’ ability to control the personal micro-environments by simply controlling the temperature of the incoming air. Subsequently, the existing thermal-circuit model was extended to include the phenomena described above. The modifications to the thermal-circuit model, which were incorporated such that the simulation time was only slightly impacted, showed that accounting for room stratification resulting from the use of floor swirl diffusers could lead to 10%-26% reduction in the annual energy consumed for HVAC in non-temperate climates. This trend was evident in both OSFA and HIYW scenarios. However, the ratio of energy usage in the two scenarios was little affected by the enhancements in the thermal model.

  16. Distributed Generation Systems Inc DISGEN | Open Energy Information

    Open Energy Info (EERE)

    Systems Inc DISGEN Jump to: navigation, search Name: Distributed Generation Systems Inc (DISGEN) Place: Lakewood, Colorado Zip: 80228 Sector: Wind energy Product: Developer of...

  17. Energy optimization of water distribution system

    SciTech Connect (OSTI)

    Not Available

    1993-02-01

    In order to analyze pump operating scenarios for the system with the computer model, information on existing pumping equipment and the distribution system was collected. The information includes the following: component description and design criteria for line booster stations, booster stations with reservoirs, and high lift pumps at the water treatment plants; daily operations data for 1988; annual reports from fiscal year 1987/1988 to fiscal year 1991/1992; and a 1985 calibrated KYPIPE computer model of DWSD`s water distribution system which included input data for the maximum hour and average day demands on the system for that year. This information has been used to produce the inventory database of the system and will be used to develop the computer program to analyze the system.

  18. Distributed Resource Energy Analysis and Management System (DREAMS)

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Development for Real-time Grid Operations | Department of Energy Distributed Resource Energy Analysis and Management System (DREAMS) Development for Real-time Grid Operations Distributed Resource Energy Analysis and Management System (DREAMS) Development for Real-time Grid Operations Hawaiian Electric Co logo.jpg Hawaii has two different Energy Management Systems (EMS) on the islands of Oahu and Maui, and already has very high solar penetration. This project will design new capabilities for

  19. Distributed Sensor Coordination for Advanced Energy Systems

    SciTech Connect (OSTI)

    Tumer, Kagan

    2013-07-31

    The ability to collect key system level information is critical to the safe, efficient and reli- able operation of advanced energy systems. With recent advances in sensor development, it is now possible to push some level of decision making directly to computationally sophisticated sensors, rather than wait for data to arrive to a massive centralized location before a decision is made. This type of approach relies on networked sensors (called agents from here on) to actively collect and process data, and provide key control deci- sions to significantly improve both the quality/relevance of the collected data and the as- sociating decision making. The technological bottlenecks for such sensor networks stem from a lack of mathematics and algorithms to manage the systems, rather than difficulties associated with building and deploying them. Indeed, traditional sensor coordination strategies do not provide adequate solutions for this problem. Passive data collection methods (e.g., large sensor webs) can scale to large systems, but are generally not suited to highly dynamic environments, such as ad- vanced energy systems, where crucial decisions may need to be reached quickly and lo- cally. Approaches based on local decisions on the other hand cannot guarantee that each agent performing its task (maximize an agent objective) will lead to good network wide solution (maximize a network objective) without invoking cumbersome coordination rou- tines. There is currently a lack of algorithms that will enable self-organization and blend the efficiency of local decision making with the system level guarantees of global decision making, particularly when the systems operate in dynamic and stochastic environments. In this work we addressed this critical gap and provided a comprehensive solution to the problem of sensor coordination to ensure the safe, reliable, and robust operation of advanced energy systems. The differentiating aspect of the proposed work is in shift- ing the focus towards what to observe rather than how to observe in large sensor networks, allowing the agents to actively determine both the structure of the network and the relevance of the information they are seeking to collect. In addition to providing an implicit coordination mechanism, this approach allows the system to be reconfigured in response to changing needs (e.g., sudden external events requiring new responses) or changing sensor network characteristics (e.g., sudden changes to plant condition). Outcome Summary: All milestones associated with this project have been completed. In particular, private sensor objective functions were developed which are aligned with the global objective function, sensor effectiveness has been improved by using sensor teams, system efficiency has been improved by 30% using difference evaluation func- tions, we have demonstrated system reconfigurability for 20% changes in system con- ditions, we have demonstrated extreme scalability of our proposed algorithm, we have demonstrated that sensor networks can overcome disruptions of up to 20% in network conditions, and have demonstrated system reconfigurability to 20% changes in system conditions in hardware-based simulations. This final report summarizes how each of these milestones was achieved, and gives insight into future research possibilities past the work which has been completed. The following publications support these milestones [6, 8, 9, 10, 16, 18, 19].

  20. Distributed sensor coordination for advanced energy systems

    SciTech Connect (OSTI)

    Tumer, Kagan

    2015-03-12

    Motivation: The ability to collect key system level information is critical to the safe, efficient and reliable operation of advanced power systems. Recent advances in sensor technology have enabled some level of decision making directly at the sensor level. However, coordinating large numbers of sensors, particularly heterogeneous sensors, to achieve system level objectives such as predicting plant efficiency, reducing downtime or predicting outages requires sophisticated coordination algorithms. Indeed, a critical issue in such systems is how to ensure the interaction of a large number of heterogenous system components do not interfere with one another and lead to undesirable behavior. Objectives and Contributions: The long-term objective of this work is to provide sensor deployment, coordination and networking algorithms for large numbers of sensors to ensure the safe, reliable, and robust operation of advanced energy systems. Our two specific objectives are to: 1. Derive sensor performance metrics for heterogeneous sensor networks. 2. Demonstrate effectiveness, scalability and reconfigurability of heterogeneous sensor network in advanced power systems. The key technical contribution of this work is to push the coordination step to the design of the objective functions of the sensors, allowing networks of heterogeneous sensors to be controlled. By ensuring that the control and coordination is not specific to particular sensor hardware, this approach enables the design and operation of large heterogeneous sensor networks. In addition to the coordination coordination mechanism, this approach allows the system to be reconfigured in response to changing needs (e.g., sudden external events requiring new responses) or changing sensor network characteristics (e.g., sudden changes to plant condition). Impact: The impact of this work extends to a large class of problems relevant to the National Energy Technology Laboratory including sensor placement, heterogeneous sensor coordination, and sensor network control in advanced power systems. Each application has specific needs, but they all share the one crucial underlying problem: how to ensure that the interactions of a large number of heterogenous agents lead to coordinated system behavior. This proposal describes a new paradigm that addresses that very issue in a systematic way. Key Results and Findings: All milestones have been completed. Our results demonstrate that by properly shaping agent objective functions, we can develop large (up to 10,000 devices) heterogeneous sensor networks with key desirable properties. The first milestone shows that properly choosing agent-specific objective functions increases system performance by up to 99.9% compared to global evaluations. The second milestone shows evolutionary algorithms learn excellent sensor network coordination policies prior to network deployment, and these policies can be refined online once the network is deployed. The third milestone shows the resulting sensor networks networks are extremely robust to sensor noise, where networks with up to 25% sensor noise are capable of providing measurements with errors on the order of 10⁻³. The fourth milestone shows the resulting sensor networks are extremely robust to sensor failure, with 25% of the sensors in the system failing resulting in no significant performance losses after system reconfiguration.

  1. NREL: Distributed Grid Integration - Energy System Basics Video Series

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Printable Version Energy System Basics Video Series Learn the essential facts on energy systems in this six-part video series sponsored by the DOE SunShot Initiative and hosted by Dr. Ravel Ammerman. Part 1: Electricity Grid Overview Part 2: Electricity Grid: Traditional Generation Technologies Part 3: Electricity Grid: Transmission Systems Part 4: Electricity Grid: Substation Overview Part 5: Electricity Grid: Distribution System Overview Part 6: Electricity Grid: Renewable Energy Resources

  2. NREL: Energy Systems Integration Facility - Fuel Distribution...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    "day tank" for diesel fuel and supply lines throughout the lab space. Photo of a man standing next to a rooftop hydrogen distribution bus. Hydrogen is supplied to the labs in the...

  3. Distributed Generation Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Colorado Zip: 80228 Region: Rockies Area Sector: Wind energy Product: Developer of electricity generation wind power facilities Website: www.disgenonline.com Coordinates:...

  4. NiSource Energy Technologies Inc.: System Integration of Distributed Power for Complete Building Systems

    SciTech Connect (OSTI)

    Not Available

    2003-10-01

    Summarizes NiSource Energy Technologies' work under contract to DOE's Distribution and Interconnection R&D. Includes studying distributed generation interconnection issues and CHP system performance.

  5. Buildings Energy Data Book: 5.5 Thermal Distribution Systems

    Buildings Energy Data Book [EERE]

    5 Typical Commercial Building Thermal Energy Distribution Design Load Intensities (Watts per SF) Distribution System Fans Other Central System Supply Fans Cooling Tower Fan Central System Return Fans Air-Cooled Chiller Condenser Fan 0.6 Terminal Box Fans 0.5 Exhaust Fans (2) Fan-Coil Unit Fans (1) Condenser Fans 0.6 Packaged or Split System Indoor Blower 0.6 Pumps Chilled Water Pump Condenser Water Pump Heating Water Pump Note(s): Source(s): 0.1 - 0.2 0.1 - 0.2 1) Unducted units are lower than

  6. Automated Energy Distribution and Reliability System (AEDR): Final Report

    SciTech Connect (OSTI)

    Buche, D. L.

    2008-07-01

    This report describes Northern Indiana Public Service Co. project efforts to develop an automated energy distribution and reliability system. The purpose of this project was to implement a database-driven GIS solution that would manage all of the company's gas, electric, and landbase objects.

  7. Distributed Frequency Control of Prosumer-Based Electric Energy Systems

    SciTech Connect (OSTI)

    Nazari, MH; Costello, Z; Feizollahi, MJ; Grijalva, S; Egerstedt, M

    2014-11-01

    In this paper, we propose a distributed frequency regulation framework for prosumer-based electric energy systems, where a prosumer (producer-consumer) is defined as an intelligent agentwhich can produce, consume, and/or store electricity. Despite the frequency regulators being distributed, stability can be ensured while avoiding inter-area oscillations using a limited control effort. To achieve this, a fully distributed one-step model-predictive control protocol is proposed and analyzed, whereby each prosumer communicates solely with its neighbors in the network. The efficacy of the proposed frequency regulation framework is shown through simulations on two real-world electric energy systems of different scale and complexity. We show that prosumers can indeed bring frequency and power deviations to their desired values after small perturbations.

  8. Buildings Energy Data Book: 5.5 Thermal Distribution Systems

    Buildings Energy Data Book [EERE]

    1 Market Share of Major HVAC Equipment Manufacturers ($2009 Million) Air-Handling Units 1032 Cooling Towers 533 Pumps 333 Central System Terminal Boxes 192 Classroom Unit Ventilator 160 Fan Coil Units 123 Source(s): Total Market Size BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II: Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, Table 4-1, p. 4-4; and EIA, Annual Energy Review 2010, Oct. 2011, Appendix D, p. 353 for price

  9. Property:Distributed Generation System Enclosure | Open Energy...

    Open Energy Info (EERE)

    + Outdoor + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Dedicated Shelter + Distributed Generation StudySUNY Buffalo + Outdoor +...

  10. Buildings Energy Data Book: 5.5 Thermal Distribution Systems

    Buildings Energy Data Book [EERE]

    2 U.S. Commercial Buildings Conditioned Floorspace, Building Type and System Type (Million SF) Total Education Food Sales Food Service Health Care Lodging Mercantile and Service Office Public Buildings Warehouse/Storage Total Source(s): BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II: Thermal Distribution, Auxiliary Equipment, and Ventilation, Oct. 1999, Table A2-12, p. B2-1. 3,988 4,771 19,767 5,287 2,822 3,352 12,065 48,064 119 1,482 0 0 102

  11. Request for Information for Distributed Wind Energy Systems

    Broader source: Energy.gov [DOE]

    The Energy Department’s Wind Program is seeking feedback from the wind industry, academia, research laboratories, government agencies, and other stakeholders regarding the Energy Department’s new perspective on Distributed Wind R&D.

  12. Buildings Energy Data Book: 5.5 Thermal Distribution Systems

    Buildings Energy Data Book [EERE]

    3 Thermal Distribution Design Load and Electricity Intensities, by Building Activity Education 0.5 1.3 Food Sales 1.1 6.4 Food Service 1.5 6.4 Health Care 1.5 5.6 Lodging 0.5 1.9 Mercantile and Service 0.9 2.7 Office 1.3 3.3 Public Assembly 1.2 3.0 Warehouse 0.4 1.8 All Buildings 1.0 2.8 Source(s): Design Load Intensity End Use Intensity (W/SF) (kWh/SF) BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II: Thermal Distribution, Auxiliary Equipment,

  13. ITP Industrial Distributed Energy: Distributed Energy Program...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ITP Industrial Distributed Energy: Distributed Energy Program Project Profile: Verizon Central Office Building ITP Industrial Distributed Energy: Distributed Energy Program Project ...

  14. How Do Distributed Wind Energy Systems Work? (Text Version) | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy How Do Distributed Wind Energy Systems Work? (Text Version) How Do Distributed Wind Energy Systems Work? (Text Version) Below is the text version for the How Do Distributed Wind Energy Systems Work? animation. The animation shows a city powered by wind power. It includes a utility-scale wind farm, connected by transmission lines to a city with homes, farms, and a school. The animation explains how wind can be used at all of these interconnected locations. Distributed Wind Distributed

  15. Buildings Energy Data Book: 5.5 Thermal Distribution Systems

    Buildings Energy Data Book [EERE]

    4 Thermal Distribution Equipment Design Load and Electricity Intensities, by System Type Central VAV Central CAV Packaged CAV Central VAV Central CAV Packaged CAV Condenser Fan 0.3 0.2 Cooling Tower Fan 0.2 0.1 0.2 0.0 Condenser Water Pump 0.2 0.3 0.3 0.0 Chilled Water Pump 0.2 0.1 0.2 0.0 Supply & Return Fans 0.7 0.5 0.6 1.2 1.9 1.9 Chiller/Compressor 1.9 1.8 3.3 1.7 2.3 4.0 Source(s): BTS/A.D. Little, Energy Consumption Characteristics of Commercial Building HVAC Systems, Volume II:

  16. ITP Industrial Distributed Energy: Distributed Energy Program...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PROGRAM PROJECT PROFILE Distributed Energy Project Profile * Verizon System Technical Overview During ... to the grid-a connected generation limit of 3 MVA set by the ...

  17. Laser Spark Distribution and Ignition System - Energy Innovation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Find More Like This Return to Search Laser Spark Distribution and Ignition System A method ... Contact NETL About This Technology Publications: PDF Document Publication Laser Spark ...

  18. Distributed Energy | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distributed Energy Distributed Energy Distributed energy consists of a range of smaller-scale and modular devices designed to provide electricity, and sometimes also thermal energy, in locations close to consumers. They include fossil and renewable energy technologies (e.g., photovoltaic arrays, wind turbines, microturbines, reciprocating engines, fuel cells, combustion turbines, and steam turbines); energy storage devices (e.g., batteries and flywheels); and combined heat and power systems.

  19. Distributed generation capabilities of the national energy modeling system

    SciTech Connect (OSTI)

    LaCommare, Kristina Hamachi; Edwards, Jennifer L.; Marnay, Chris

    2003-01-01

    This report describes Berkeley Lab's exploration of how the National Energy Modeling System (NEMS) models distributed generation (DG) and presents possible approaches for improving how DG is modeled. The on-site electric generation capability has been available since the AEO2000 version of NEMS. Berkeley Lab has previously completed research on distributed energy resources (DER) adoption at individual sites and has developed a DER Customer Adoption Model called DER-CAM. Given interest in this area, Berkeley Lab set out to understand how NEMS models small-scale on-site generation to assess how adequately DG is treated in NEMS, and to propose improvements or alternatives. The goal is to determine how well NEMS models the factors influencing DG adoption and to consider alternatives to the current approach. Most small-scale DG adoption takes place in the residential and commercial modules of NEMS. Investment in DG ultimately offsets purchases of electricity, which also eliminates the losses associated with transmission and distribution (T&D). If the DG technology that is chosen is photovoltaics (PV), NEMS assumes renewable energy consumption replaces the energy input to electric generators. If the DG technology is fuel consuming, consumption of fuel in the electric utility sector is replaced by residential or commercial fuel consumption. The waste heat generated from thermal technologies can be used to offset the water heating and space heating energy uses, but there is no thermally activated cooling capability. This study consists of a review of model documentation and a paper by EIA staff, a series of sensitivity runs performed by Berkeley Lab that exercise selected DG parameters in the AEO2002 version of NEMS, and a scoping effort of possible enhancements and alternatives to NEMS current DG capabilities. In general, the treatment of DG in NEMS is rudimentary. The penetration of DG is determined by an economic cash-flow analysis that determines adoption based on the n umber of years to a positive cash flow. Some important technologies, e.g. thermally activated cooling, are absent, and ceilings on DG adoption are determined by some what arbitrary caps on the number of buildings that can adopt DG. These caps are particularly severe for existing buildings, where the maximum penetration for any one technology is 0.25 percent. On the other hand, competition among technologies is not fully considered, and this may result in double-counting for certain applications. A series of sensitivity runs show greater penetration with net metering enhancements and aggressive tax credits and a more limited response to lowered DG technology costs. Discussion of alternatives to the current code is presented in Section 4. Alternatives or improvements to how DG is modeled in NEMS cover three basic areas: expanding on the existing total market for DG both by changing existing parameters in NEMS and by adding new capabilities, such as for missing technologies; enhancing the cash flow analysis but incorporating aspects of DG economics that are not currently represented, e.g. complex tariffs; and using an external geographic information system (GIS) driven analysis that can better and more intuitively identify niche markets.

  20. Energy storage management system with distributed wireless sensors

    DOE Patents [OSTI]

    Farmer, Joseph C.; Bandhauer, Todd M.

    2015-12-08

    An energy storage system having a multiple different types of energy storage and conversion devices. Each device is equipped with one or more sensors and RFID tags to communicate sensor information wirelessly to a central electronic management system, which is used to control the operation of each device. Each device can have multiple RFID tags and sensor types. Several energy storage and conversion devices can be combined.

  1. Integrating Renewable Energy into the Transmission and Distribution System of the U.S. Virgin Islands

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Integrating Renewable Energy into the Transmission and Distribution System of the U.S. Virgin Islands Kari Burman, Dan Olis, Vahan Gevorgian, Adam Warren, and Robert Butt National Renewable Energy Laboratory Peter Lilienthal and John Glassmire HOMER Energy LLC Technical Report NREL/TP-7A20-51294 September 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Contract No.

  2. PROJECT PROFILE: Visualization and Analytics of Distribution Systems with Deep Penetration of Distributed Energy Resources (SuNLaMP)

    Broader source: Energy.gov [DOE]

    For high penetration of distributed energy resources (DER) like solar, electric power grid operators and planners must be able to incorporate large datasets from photovoltaic (PV) sources, local and line mounted precision instruments, customer load data from smart meters, and EV charging data into their analyses. This project will design and implement a platform for the visualization and analytics of distribution systems with high penetrations of distributed energy resources (VADER). VADER is a unified data analytics platform that will enable the integration of massive and varied data streams for real-time monitoring with analytics, visualization, and control of DERs in distribution networks.

  3. Optimal Combination of Distributed Energy System in an Eco-Campusof Japan

    SciTech Connect (OSTI)

    Yang, Yongwen; Gao, Weijun; Zhou, Nan; Marnay, Chris

    2006-06-14

    In this study, referring to the Distributed Energy Resources Customer Adoption Model (DER-CAM) which was developed by the Ernest Orlando Lawrence Berkeley National Laboratory (LBNL), E-GAMS programmer is developed with a research of database of energy tariffs, DER (Distributed Energy Resources) technology cost and performance characteristics, and building energy consumption in Japan. E-GAMS is a tool designed to find the optimal combination of installed equipment and an idealized operating schedule to minimize a site's energy bills. In this research, by using E-GAMS, we present a tool to select the optimal combination of distributed energy system for an Ecological-Campus, Kitakyushu, Science and Research Park (KSRP). We discuss the effects of the combination of distributed energy technologies on the energy saving, economic efficiency and environmental benefits.

  4. The integration of renewable energy sources into electric power distribution systems. Volume 2, Utility case assessments

    SciTech Connect (OSTI)

    Zaininger, H.W.; Ellis, P.R.; Schaefer, J.C.

    1994-06-01

    Electric utility distribution system impacts associated with the integration of renewable energy sources such as photovoltaics (PV) and wind turbines (WT) are considered in this project. The impacts are expected to vary from site to site according to the following characteristics: (1) The local solar insolation and/or wind characteristics; (2) renewable energy source penetration level; (3) whether battery or other energy storage systems are applied; and (4) local utility distribution design standards and planning practices. Small, distributed renewable energy sources are connected to the utility distribution system like other, similar kW- and MW-scale equipment and loads. Residential applications are expected to be connected to single-phase 120/240-V secondaries. Larger kw-scale applications may be connected to three-phase secondaries, and larger hundred-kW and MW-scale applications, such as MW-scale windfarms or PV plants, may be connected to electric utility primary systems via customer-owned primary and secondary collection systems. Small, distributed renewable energy sources installed on utility distribution systems will also produce nonsite-specific utility generation system benefits such as energy and capacity displacement benefits, in addition to the local site-specific distribution system benefits. Although generation system benefits are not site-specific, they are utility-specific, and they vary significantly among utilities in different regions. In addition, transmission system benefits, environmental benefits and other benefits may apply. These benefits also vary significantly among utilities and regions. Seven utility case studies considering PV, WT, and battery storage were conducted to identify a range of potential renewable energy source distribution system applications.

  5. Effects of Home Energy Management Systems on Distribution Utilities and Feeders Under Various Market Structures: Preprint

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Effects of Home Energy Management Systems on Distribution Utilities and Feeders under Various Market Structures Preprint Mark Ruth, Annabelle Pratt, Monte Lunacek, Saurabh Mittal, Hongyu Wu, and Wesley Jones National Renewable Energy Laboratory Presented at the 23 rd International Conference on Electricity Distribution Lyon, France June 15-18, 2015 Conference Paper NREL/CP-6A20-63500 July 2015 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy,

  6. Buildings Energy Data Book: 5.5 Thermal Distribution Systems

    Buildings Energy Data Book [EERE]

    6 1999 Energy Efficient Motors, Replacements and Sales, by Horsepower Class | Units in Use Horsepower | Energy Efficient Horsepower Range (10^6) | % Retired 1 - 5 | 17% 5.1 - 20 | 29% 21 - 50 | 45% 51 - 100 | 52% 101 - 200 | 65% Source(s): Electrical Apparatus Service Association, Past Trends and Probable Future Changes in the Electric Motor Industry 1990-1999, 2001, p. 18 for existing stock and retirements and p. 28 for energy efficient motor sales. 738 59.6 1.0% 412 56.5 0.8% 6,927 81.8 2.0%

  7. ITP Industrial Distributed Energy: Combustion Turbine CHP System...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    INDUSTRIAL TECHNOLOGIES PROGRAM Combustion Turbine CHP System for Food Processing Industry Reducing Industry's Environmental Footprint and Easing Transmission Congestion Based at a...

  8. Natural gas transmission and distribution model of the National Energy Modeling System

    SciTech Connect (OSTI)

    1997-02-01

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of Integrated Analysis and Forecasting of the Energy Information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. From 1982 through 1993, the Intermediate Future Forecasting System (IFFS) was used by the EIA for its analyses, and the Gas Analysis Modeling System (GAMS) was used within IFFS to represent natural gas markets. Prior to 1982, the Midterm Energy Forecasting System (MEFS), also referred to as the Project Independence Evaluation System (PIES), was employed. NEMS was developed to enhance and update EIA`s modeling capability by internally incorporating models of energy markets that had previously been analyzed off-line. In addition, greater structural detail in NEMS permits the analysis of a broader range of energy issues. The time horizon of NEMS is the midterm period (i.e., through 2015). In order to represent the regional differences in energy markets, the component models of NEMS function at regional levels appropriate for the markets represented, with subsequent aggregation/disaggregation to the Census Division level for reporting purposes.

  9. About Industrial Distributed Energy

    Broader source: Energy.gov [DOE]

    The Advanced Manufacturing Office's (AMO's) Industrial Distributed Energy activities build on the success of predecessor DOE programs on distributed energy and combined heat and power (CHP) while...

  10. Development, Demonstration, and Field Testing of Enterprise-Wide Distributed Generation Energy Management System: Final Report

    SciTech Connect (OSTI)

    Greenberg, S.; Cooley, C.

    2005-01-01

    This report details progress on subcontract NAD-1-30605-1 between the National Renewable Energy Laboratory and RealEnergy (RE), the purpose of which is to describe RE's approach to the challenges it faces in the implementation of a nationwide fleet of clean cogeneration systems to serve contemporary energy markets. The Phase 2 report covers: utility tariff risk and its impact on market development; the effect on incentives on distributed energy markets; the regulatory effectiveness of interconnection in California; a survey of practical field interconnection issues; trend analysis for on-site generation; performance of dispatch systems; and information design hierarchy for combined heat and power.

  11. Automated Energy Distribution and Reliability System: Validation Integration - Results of Future Architecture Implementation

    SciTech Connect (OSTI)

    Buche, D. L.

    2008-06-01

    This report describes Northern Indiana Public Service Co. project efforts to develop an automated energy distribution and reliability system. The purpose of this project was to implement a database-driven GIS solution that would manage all of the company's gas, electric, and landbase objects. This report is second in a series of reports detailing this effort.

  12. Installation of the first Distributed Energy Storage System (DESS) at American Electric Power (AEP).

    SciTech Connect (OSTI)

    Nourai, Ali

    2007-06-01

    AEP studied the direct and indirect benefits, strengths, and weaknesses of distributed energy storage systems (DESS) and chose to transform its entire utility grid into a system that achieves optimal integration of both central and distributed energy assets. To that end, AEP installed the first NAS battery-based, energy storage system in North America. After one year of operation and testing, AEP has concluded that, although the initial costs of DESS are greater than conventional power solutions, the net benefits justify the AEP decision to create a grid of DESS with intelligent monitoring, communications, and control, in order to enable the utility grid of the future. This report details the site selection, construction, benefits and lessons learned of the first installation, at Chemical Station in North Charleston, WV.

  13. Interconnection of Distributed Energy Resources

    Energy Savers [EERE]

    Interconnection of Distributed Energy Resources Delivered to: Transmission and Grid Basics for Tribal Economic and Energy Development Dave Narang Principal Engineer, NREL March 30, 2016 2 Discussion Topics * Distribution System Interconnections - Part 1 o Background o Distribution Systems Overview o Electric Utility Operations o Emerging Topics in Grid Integration o DOE Grid Modernization Initiative * Distribution System Interconnections - Part 2 o Permitting o Interconnection * Wrap up o

  14. Effects of Home Energy Management Systems on Distribution Utilities and Feeders Under Various Market Structure; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Ruth, M.; Pratt, A.; Lunacek, M.; Mittal, S.; Wu, H.; Jones, W.

    2015-06-15

    The combination of distributed energy resources (DER) and retail tariff structures to provide benefits to both utility consumers and the utilities is not well understood. To improve understanding, an Integrated Energy System Model (IESM) is being developed to simulate the physical and economic aspects of DER technologies, the buildings where they reside, and feeders servicing them. The IESM was used to simulate 20 houses with home energy management systems on a single feeder under a time-of-use (TOU) tariff to estimate economic and physical impacts on both the households and the distribution utilities. Home energy management systems (HEMS) reduce consumers’ electric bills by precooling houses in the hours before peak electricity pricing. Utilization of HEMS reduce peak loads during high price hours but shifts it to hours with off-peak and shoulder prices, resulting in a higher peak load. used to simulate 20 houses with home energy management systems on a single feeder under a time-of-use (TOU) tariff to estimate economic and physical impacts on both the households and the distribution utilities. Home energy management systems (HEMS) reduce consumers’ electric bills by precooling houses in the hours before peak electricity pricing. Utilization of HEMS reduce peak loads during high price hours but shifts it to hours with off-peak and shoulder prices, resulting in a higher peak load.

  15. Distributed Wind | Open Energy Information

    Open Energy Info (EERE)

    facility's anaerobic digesters. Photo from Kathryn Craddock, NREL 16710 Distributed wind energy systems provide clean, renewable power for on-site use and help relieve...

  16. Effects of Home Energy Management Systems on Distribution Utilities and Feeders Under Various Market Structures: Preprint

    SciTech Connect (OSTI)

    Ruth, Mark; Pratt, Annabelle; Lunacek, Monte; Mittal, Saurabh; Wu, Hongyu; Jones, Wesley

    2015-07-17

    The combination of distributed energy resources (DER) and retail tariff structures to provide benefits to both utility consumers and the utilities is poorly understood. To improve understanding, an Integrated Energy System Model (IESM) is being developed to simulate the physical and economic aspects of DER technologies, the buildings where they reside, and feeders servicing them. The IESM was used to simulate 20 houses with home energy management systems on a single feeder under a time of use tariff to estimate economic and physical impacts on both the households and the distribution utilities. HEMS reduce consumers’ electric bills by precooling houses in the hours before peak electricity pricing. Household savings are greater than the reduction utility net revenue indicating that HEMS can provide a societal benefit providing tariffs are structured so that utilities remain solvent. Utilization of HEMS reduce peak loads during high price hours but shifts it to hours with off-peak and shoulder prices and resulting in a higher peak load.

  17. Integrating Renewable Energy into the Transmission and Distribution System of the U. S. Virgin Islands

    SciTech Connect (OSTI)

    Burman, K.; Olis, D.; Gevorgian, V.; Warren, A.; Butt, R.; Lilienthal, P.; Glassmire, J.

    2011-09-01

    This report focuses on the economic and technical feasibility of integrating renewable energy technologies into the U.S. Virgin Islands transmission and distribution systems. The report includes three main areas of analysis: 1) the economics of deploying utility-scale renewable energy technologies on St. Thomas/St. John and St. Croix; 2) potential sites for installing roof- and ground-mount PV systems and wind turbines and the impact renewable generation will have on the electrical subtransmission and distribution infrastructure, and 3) the feasibility of a 100- to 200-megawatt power interconnection of the Puerto Rico Electric Power Authority (PREPA), Virgin Islands Water and Power Authority (WAPA), and British Virgin Islands (BVI) grids via a submarine cable system.

  18. Model documentation: Natural gas transmission and distribution model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    1995-02-17

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. NEMS was developed in the Office of integrated Analysis and Forecasting of the Energy information Administration (EIA). NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the EIA and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The methodology employed allows the analysis of impacts of regional capacity constraints in the interstate natural gas pipeline network and the identification of pipeline capacity expansion requirements. There is an explicit representation of core and noncore markets for natural gas transmission and distribution services, and the key components of pipeline tariffs are represented in a pricing algorithm. Natural gas pricing and flow patterns are derived by obtaining a market equilibrium across the three main elements of the natural gas market: the supply element, the demand element, and the transmission and distribution network that links them. The NGTDM consists of four modules: the Annual Flow Module, the Capacity F-expansion Module, the Pipeline Tariff Module, and the Distributor Tariff Module. A model abstract is provided in Appendix A.

  19. Sandia Energy - Distribution Grid Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Distribution Grid Integration Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Grid Integration Distribution Grid Integration Distribution Grid...

  20. Distributed Energy Projects | Department of Energy

    Office of Environmental Management (EM)

    Distributed Energy Projects Distributed Energy Projects Distributed Energy Projects At the National Clean Energy Summit 8.0 in Nevada, President Obama announced that the Loan...

  1. Community Energy: Analysis of Hydrogen Distributed Energy Systems with Photovoltaics for Load Leveling and Vehicle Refueling

    SciTech Connect (OSTI)

    Steward, D.; Zuboy, J.

    2014-10-01

    Energy storage could complement PV electricity generation at the community level. Because PV generation is intermittent, strategies must be implemented to integrate it into the electricity system. Hydrogen and fuel cell technologies offer possible PV integration strategies, including the community-level approaches analyzed in this report: (1) using hydrogen production, storage, and reconversion to electricity to level PV generation and grid loads (reconversion scenario); (2) using hydrogen production and storage to capture peak PV generation and refuel hydrogen fuel cell electric vehicles (FCEVs) (hydrogen fueling scenario); and (3) a comparison scenario using a battery system to store electricity for EV nighttime charging (electric charging scenario).

  2. Model documentation: Natural Gas Transmission and Distribution Model of the National Energy Modeling System; Volume 1

    SciTech Connect (OSTI)

    1994-02-24

    The Natural Gas Transmission and Distribution Model (NGTDM) is a component of the National Energy Modeling System (NEMS) used to represent the domestic natural gas transmission and distribution system. NEMS is the third in a series of computer-based, midterm energy modeling systems used since 1974 by the Energy Information Administration (EIA) and its predecessor, the Federal Energy Administration, to analyze domestic energy-economy markets and develop projections. This report documents the archived version of NGTDM that was used to produce the natural gas forecasts used in support of the Annual Energy Outlook 1994, DOE/EIA-0383(94). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. It is intended to fulfill the legal obligation of the EIA to provide adequate documentation in support of its models (Public Law 94-385, Section 57.b.2). This report represents Volume 1 of a two-volume set. (Volume 2 will report on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.) Subsequent chapters of this report provide: (1) an overview of the NGTDM (Chapter 2); (2) a description of the interface between the National Energy Modeling System (NEMS) and the NGTDM (Chapter 3); (3) an overview of the solution methodology of the NGTDM (Chapter 4); (4) the solution methodology for the Annual Flow Module (Chapter 5); (5) the solution methodology for the Distributor Tariff Module (Chapter 6); (6) the solution methodology for the Capacity Expansion Module (Chapter 7); (7) the solution methodology for the Pipeline Tariff Module (Chapter 8); and (8) a description of model assumptions, inputs, and outputs (Chapter 9).

  3. Opportunities for Energy Efficiency Improvements in the U.S. Electricity Transmission and Distribution System

    Broader source: Energy.gov [DOE]

    From 2000-2012, about 6% of U.S. electricity generation did not reach any customer, instead being lost in the transmission and distribution system. This report describes sources of energy loss in the transmission and distribution of electricity, and reviews research on both the magnitude and potential for reducing these losses. Strategies to improve energy efficiency on the grid include upgrades in physical infrastructure as well as information technologies and operational strategies that can help grid operators make the system run more efficiently. The report also describes engineering, economic, and policy barriers to implementing these loss reduction strategies. For transmission, emerging technologies such as superconductors and power flow control technologies can reduce transmission loss 50% or more, but these technologies may not be cost-effective in all areas. On the distribution system, theoretical studies of reducing overloading lines through reconfiguration have identified loss reductions of up to 40%; however, studies of real systems have observed loss reductions of only 5-20%.

  4. Distributed Energy Projects

    Broader source: Energy.gov [DOE]

    At the National Clean Energy Summit 8.0 in Nevada, President Obama announced that the Loan Programs Office (LPO) has issued guidance for potential applicants on the kinds of Distributed Energy Projects it can support, in the form of supplements to its existing Renewable Energy and Efficient Energy (REEE) Projects and Advanced Fossil Energy Projects solicitations.

  5. Model documentation Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    1996-02-26

    The Natural Gas Transmission and Distribution Model (NGTDM) of the National Energy Modeling System is developed and maintained by the Energy Information Administration (EIA), Office of Integrated Analysis and Forecasting. This report documents the archived version of the NGTDM that was used to produce the natural gas forecasts presented in the Annual Energy Outlook 1996, (DOE/EIA-0383(96)). The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic approach, and provides detail on the methodology employed. Previously this report represented Volume I of a two-volume set. Volume II reported on model performance, detailing convergence criteria and properties, results of sensitivity testing, comparison of model outputs with the literature and/or other model results, and major unresolved issues.

  6. Optimum model-E-GAMS for Distributed Energy System by Using GAMSMethod

    SciTech Connect (OSTI)

    Yang, Yongwen; Gao, Weijun; Ruan, Yingjun; Zhou, Nan; Xuan, Ji; Marnay, Chris

    2005-05-31

    DER-CAM Developed by the Lawrence Berkeley National Laboratory (LBNL), is an optimization tool for DER technology selection. However it can not be simply applied to the Japanese case because of the different climate and the utility tariff. This research aims to develop an optimization tool for distributed energy for Japanese buildings using GAMS, a high-level modeling system for mathematical programming and optimization. This paper describes how we apply and demonstrate the tool to the energy center at Kitakyushu Research city, where has installed a fuel cell and a gas engine. An analysis has also been conducted to see how the utility tarriff and the equipment efficiency can affect the operation of the DER system.

  7. Natural Gas Transmission and Distribution Model of the National Energy Modeling System. Volume 1

    SciTech Connect (OSTI)

    1998-01-01

    The Natural Gas Transmission and Distribution Model (NGTDM) is the component of the National Energy Modeling System (NEMS) that is used to represent the domestic natural gas transmission and distribution system. The NGTDM is the model within the NEMS that represents the transmission, distribution, and pricing of natural gas. The model also includes representations of the end-use demand for natural gas, the production of domestic natural gas, and the availability of natural gas traded on the international market based on information received from other NEMS models. The NGTDM determines the flow of natural gas in an aggregate, domestic pipeline network, connecting domestic and foreign supply regions with 12 demand regions. The purpose of this report is to provide a reference document for model analysts, users, and the public that defines the objectives of the model, describes its basic design, provides detail on the methodology employed, and describes the model inputs, outputs, and key assumptions. Subsequent chapters of this report provide: an overview of NGTDM; a description of the interface between the NEMS and NGTDM; an overview of the solution methodology of the NGTDM; the solution methodology for the Annual Flow Module; the solution methodology for the Distributor Tariff Module; the solution methodology for the Capacity Expansion Module; the solution methodology for the Pipeline Tariff Module; and a description of model assumptions, inputs, and outputs.

  8. Proceedings of the Technology Roadmap Workshop on Communication and Control Systems for Distributed Energy Implementation and Testing, May 2002

    Broader source: Energy.gov [DOE]

    This report presents the proceedings of a technical workshop on communication and control systems for the implementation and testing of distributed energy devises such as microturbines, fuel cells, and photovoltaic arrays.

  9. Distributed Wind Energy Workshop

    Broader source: Energy.gov [DOE]

    Join instructor Brent Summerville for a fun and interactive workshop at Appalachian State University's Small Wind Research and Demonstration Site. Learn about a variety of distributed wind energy...

  10. Distributed Energy Resource Program

    Broader source: Energy.gov [DOE]

    Note: A series of orders issued on July 15, 2015 in  Docket 2015-53-E, Docket 2015-54-E, and Docket 2015-55-E approved the incentive programs for South Carolina's Distributed Energy Resource...

  11. Estimating Energy and Water Losses in Residential Hot WaterDistribution Systems

    SciTech Connect (OSTI)

    Lutz, James

    2005-02-26

    Residential single family building practice currently ignores the losses of energy and water caused by the poor design of hot water systems. These losses include; the waste of water while waiting for hot water to get to the point of use; the wasted heat as water cools down in the distribution system after a draw; and the energy needed to reheat water that was already heated once before. Average losses of water are estimated to be 6.35 gallons (24.0 L) per day. (This is water that is rundown the drain without being used while waiting for hot water.) The amount of wasted hot water has been calculated to be 10.9 gallons (41.3L) per day. (This is water that was heated, but either is not used or issued after it has cooled off.) A check on the reasonableness of this estimate is made by showing that total residential hot water use averages about 52.6 gallons (199 L) per day. This indicates about 20 percent of average daily hot water is wasted.

  12. Distribution Workshop | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Variable distributed generation Dispatchable distributed generation Electric vehicle charging and electrolyzers Energy storage Building and industrial loads and demand response ...

  13. Advanced Power Electronic Interfaces for Distributed Energy Systems Part 1: Systems and Topologies

    SciTech Connect (OSTI)

    Kramer, W.; Chakraborty, S.; Kroposki, B.; Thomas, H.

    2008-03-01

    This report summarizes power electronic interfaces for DE applications and the topologies needed for advanced power electronic interfaces. It focuses on photovoltaic, wind, microturbine, fuel cell, internal combustion engine, battery storage, and flywheel storage systems.

  14. Performance Modeling and Testing of Distributed Electronics in PV Systems; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Deline, C.

    2015-03-18

    Computer modeling is able to predict the performance of distributed power electronics (microinverters, power optimizers) in PV systems. However, details about partial shade and other mismatch must be known in order to give the model accurate information to go on. This talk will describe recent updates in NREL’s System Advisor Model program to model partial shading losses with and without distributed power electronics, along with experimental validation results. Computer modeling is able to predict the performance of distributed power electronics (microinverters, power optimizers) in PV systems. However, details about partial shade and other mismatch must be known in order to give the model accurate information to go on. This talk will describe recent updates in NREL’s System Advisor Model program to model partial shading losses.

  15. Modeling of thermal storage systems in MILP distributed energy resource models

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Steen, David; Stadler, Michael; Cardoso, Gonçalo; Groissböck, Markus; DeForest, Nicholas; Marnay, Chris

    2014-08-04

    Thermal energy storage (TES) and distributed generation technologies, such as combined heat and power (CHP) or photovoltaics (PV), can be used to reduce energy costs and decrease CO2 emissions from buildings by shifting energy consumption to times with less emissions and/or lower energy prices. To determine the feasibility of investing in TES in combination with other distributed energy resources (DER), mixed integer linear programming (MILP) can be used. Such a MILP model is the well-established Distributed Energy Resources Customer Adoption Model (DER-CAM); however, it currently uses only a simplified TES model to guarantee linearity and short run-times. Loss calculations aremore » based only on the energy contained in the storage. This paper presents a new DER-CAM TES model that allows improved tracking of losses based on ambient and storage temperatures, and compares results with the previous version. A multi-layer TES model is introduced that retains linearity and avoids creating an endogenous optimization problem. The improved model increases the accuracy of the estimated storage losses and enables use of heat pumps for low temperature storage charging. Ultimately,results indicate that the previous model overestimates the attractiveness of TES investments for cases without possibility to invest in heat pumps and underestimates it for some locations when heat pumps are allowed. Despite a variation in optimal technology selection between the two models, the objective function value stays quite stable, illustrating the complexity of optimal DER sizing problems in buildings and microgrids.« less

  16. Power Electronics for Distributed Energy Systems and Transmission and Distribution Applications: Assessing the Technical Needs for Utility Applications

    SciTech Connect (OSTI)

    Tolbert, L.M.

    2005-12-21

    Power electronics can provide utilities the ability to more effectively deliver power to their customers while providing increased reliability to the bulk power system. In general, power electronics is the process of using semiconductor switching devices to control and convert electrical power flow from one form to another to meet a specific need. These conversion techniques have revolutionized modern life by streamlining manufacturing processes, increasing product efficiencies, and increasing the quality of life by enhancing many modern conveniences such as computers, and they can help to improve the delivery of reliable power from utilities. This report summarizes the technical challenges associated with utilizing power electronics devices across the entire spectrum from applications to manufacturing and materials development, and it provides recommendations for research and development (R&D) needs for power electronics systems in which the U.S. Department of Energy (DOE) could make a substantial impact toward improving the reliability of the bulk power system.

  17. FRIB cryogenic distribution system

    SciTech Connect (OSTI)

    Ganni, Venkatarao; Dixon, Kelly D.; Laverdure, Nathaniel A.; Knudsen, Peter N.; Arenius, Dana M.; Barrios, Matthew N.; Jones, S.; Johnson, M.; Casagrande, Fabio

    2014-01-01

    The Michigan State University Facility for Rare Isotope Beams (MSU-FRIB) helium distribution system has been revised to include bayonet/warm valve type disconnects between each cryomodule and the transfer line distribution system, similar to the Thomas Jefferson National Accelerator Facility (JLab) and the Spallation Neutron Source (SNS) cryogenic distribution systems. The heat loads at various temperature levels and some of the features in the design of the distribution system are outlined. The present status, the plans for fabrication, and the procurement approach for the helium distribution system are also included.

  18. Distributed Wind Energy in Idaho

    SciTech Connect (OSTI)

    Gardner, John; Ferguson, James; Ahmed-Zaid, Said; Johnson, Kathryn; Haynes, Todd; Bennett, Keith

    2009-01-31

    Project Objective: This project is a research and development program aimed at furthering distributed wind technology. In particular, this project addresses some of the barriers to distributed wind energy utilization in Idaho. Background: At its core, the technological challenge inherent in Wind Energy is the transformation of a highly variable form of energy to one which is compatible with the commercial power grid or another useful application. A major economic barrier to the success of distributed wind technology is the relatively high capital investment (and related long payback periods) associated with wind turbines. This project will carry out fundamental research and technology development to address both the technological and economic barriers. • Active drive train control holds the potential to improve the overall efficiency of a turbine system by allowing variable speed turbine operation while ensuring a tight control of generator shaft speed, thus greatly simplifying power conditioning. • Recent blade aerodynamic advancements have been focused on large, utility-scale wind turbine generators (WTGs) as opposed to smaller WTGs designed for distributed generation. Because of Reynolds Number considerations, blade designs do not scale well. Blades which are aerodynamically optimized for distributed-scale WTGs can potentially reduce the cost of electricity by increasing shaft-torque in a given wind speed. • Grid-connected electric generators typically operate at a fixed speed. If a generator were able to economically operate at multiple speeds, it could potentially convert more of the wind’s energy to electricity, thus reducing the cost of electricity. This research directly supports the stated goal of the Wind and Hydropower Technologies Program for Distributed Wind Energy Technology: By 2007, reduce the cost of electricity from distributed wind systems to 10 to 15 cents/kWh in Class 3 wind resources, the same level that is currently achievable in Class 5 winds.

  19. Energy Department Announces Distributed Wind Competitiveness Improvement

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Project Awards | Department of Energy Distributed Wind Competitiveness Improvement Project Awards Energy Department Announces Distributed Wind Competitiveness Improvement Project Awards July 24, 2014 - 3:23pm Addthis The Energy Department and the Department's National Renewable Energy Laboratory today announced funding for projects led by Pika Energy, Northern Power Systems, Endurance Wind Power, and Urban Green Energy that will help drive down the cost of small and medium-sized wind energy

  20. Flywheel Energy Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    K2H 8S1 Product: Focuses on design, fabrication, assembling and distributing flywheel energy storage systems and related components. References: Flywheel Energy Systems Inc1...

  1. AMO Industrial Distributed Energy: Industrial Distributed Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... etc. because the marketing department has not yet decided upon the formal product name. ... for Energy Smart Communities-the nation's frst carbon-neutral all-digital community. ...

  2. Energy Savings Potential of Flexible and Adaptive HVAC Distribution Systems for Office Buildings

    SciTech Connect (OSTI)

    Loftness, Vivian; Brahme, Rohini; Mondazzi, Michelle; Vineyard, Edward; MacDonald, Michael

    2002-06-01

    It has been understood by architects and engineers that office buildings with easily re-configurable space and flexible mechanical and electrical systems are able to provide comfort that increases worker productivity while using less energy. Raised floors are an example of how fresh air, thermal conditioning, lighting needs, and network access can be delivered in a flexible manner that is not ''embedded'' within the structure. What are not yet documented is how well these systems perform and how much energy they can save. This area is being investigated in phased projects of the 21st Century Research Program of the Air-conditioning and Refrigeration Technology Institute. For the initial project, research teams at the Center for Building Performance and Diagnostics, Pittsburgh, Pennsylvania, and Oak Ridge National Laboratory, Oak Ridge, Tennessee, documented the diversity, performance, and incidence of flexible and adaptive HVAC systems. Information was gathered worldwide from journal and conference articles, case studies, manufactured products and assemblies, and interviews with design professionals. Their report thoroughly describes the variety of system types along with the various design alternatives observed for plenums, diffusers, individual control, and system integration. Many of the systems are illustrated in the report and the authors provide quantitative and qualitative comparisons. Among conclusions regarding key design issues, and barriers to widespread adoption, the authors state that flexible and adaptive HVAC systems, such as underfloor air, perform as well if not better than ceiling-based systems. Leading engineers have become active proponents after their first experience, which is resulting in these flexible and adaptive HVAC systems approaching 10 percent of the new construction market. To encourage adoption of this technology that improves thermal comfort and indoor air quality, follow-on work is required to further document performance. Architects, professional engineers, and commercial real estate developers will benefit from the availability of information that quantifies energy savings, first cost construction differences, and additional operating costs created when office space must be reconfigured to accommodate new tenants.

  3. Distributed Wind Energy Association | Open Energy Information

    Open Energy Info (EERE)

    Energy Association Jump to: navigation, search Name: Distributed Wind Energy Association Address: PO Box 1861 Place: Flagstaff, AZ Zip: 86002 Phone Number: 928-255-0214 Website:...

  4. Distributed Energy Calculator | Open Energy Information

    Open Energy Info (EERE)

    ibutedenergycalculator.com OpenEI Keyword(s): Challenge Generated, Green Button Apps Language: English References: Apps for Energy1 The Distributed Energy Calculator allows you...

  5. How Distributed Wind Works | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    How Distributed Wind Works How Distributed Wind Works Your browser does not support iframes. Distributed wind energy systems are commonly installed on, but are not limited to, residential, agricultural, commercial, industrial, and community sites, and can range in size from a 5-kilowatt turbine at a home to a multi-megawatt (MW) turbine at a manufacturing facility. Distributed wind systems are connected on the customer side of the meter to meet the onsite load or directly to distribution or

  6. Distributed Energy Resources

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Resources - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  7. Fuel Cell Power Model Version 2: Startup Guide, System Designs, and Case Studies. Modeling Electricity, Heat, and Hydrogen Generation from Fuel Cell-Based Distributed Energy Systems

    SciTech Connect (OSTI)

    Steward, D.; Penev, M.; Saur, G.; Becker, W.; Zuboy, J.

    2013-06-01

    This guide helps users get started with the U.S. Department of Energy/National Renewable Energy Laboratory Fuel Cell Power (FCPower) Model Version 2, which is a Microsoft Excel workbook that analyzes the technical and economic aspects of high-temperature fuel cell-based distributed energy systems with the aim of providing consistent, transparent, comparable results. This type of energy system would provide onsite-generated heat and electricity to large end users such as hospitals and office complexes. The hydrogen produced could be used for fueling vehicles or stored for later conversion to electricity.

  8. Distributed Energy Resources

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel ... SubTER Carbon Sequestration Program Leadership EnergyWater Nexus EnergyWater History ...

  9. Cooling water distribution system

    DOE Patents [OSTI]

    Orr, Richard

    1994-01-01

    A passive containment cooling system for a nuclear reactor containment vessel. Disclosed is a cooling water distribution system for introducing cooling water by gravity uniformly over the outer surface of a steel containment vessel using an interconnected series of radial guide elements, a plurality of circumferential collector elements and collector boxes to collect and feed the cooling water into distribution channels extending along the curved surface of the steel containment vessel. The cooling water is uniformly distributed over the curved surface by a plurality of weirs in the distribution channels.

  10. Network design optimization of fuel cell systems and distributed energy devices.

    SciTech Connect (OSTI)

    Colella, Whitney G.

    2010-07-01

    This research explores the thermodynamics, economics, and environmental impacts of innovative, stationary, polygenerative fuel cell systems (FCSs). Each main report section is split into four subsections. The first subsection, 'Potential Greenhouse Gas (GHG) Impact of Stationary FCSs,' quantifies the degree to which GHG emissions can be reduced at a U.S. regional level with the implementation of different FCS designs. The second subsection, 'Optimizing the Design of Combined Heat and Power (CHP) FCSs,' discusses energy network optimization models that evaluate novel strategies for operating CHP FCSs so as to minimize (1) electricity and heating costs for building owners and (2) emissions of the primary GHG - carbon dioxide (CO{sub 2}). The third subsection, 'Optimizing the Design of Combined Cooling, Heating, and Electric Power (CCHP) FCSs,' is similar to the second subsection but is expanded to include capturing FCS heat with absorptive cooling cycles to produce cooling energy. The fourth subsection, - Thermodynamic and Chemical Engineering Models of CCHP FCSs,' discusses the physics and thermodynamic limits of CCHP FCSs.

  11. NREL: Energy Systems Integration - Systems Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    High-level system integration New distribution scenarios such as household DC systems and residential-scale generation and storage integrated with home energy management systems. ...

  12. Distributed Energy Financial Group | Open Energy Information

    Open Energy Info (EERE)

    Financial Group Jump to: navigation, search Name: Distributed Energy Financial Group Place: Washington, DC, Washington, DC Zip: 20016-25 12 Sector: Services Product: The...

  13. Final Technical Report: Hawaii Hydrogen Center for Development and Deployment of Distributed Energy Systems

    SciTech Connect (OSTI)

    Rocheleau, Richard E.

    2008-09-30

    Hydrogen power park experiments in Hawai‘i produced real-world data on the performance of commercialized electrochemical components and power systems integrating renewable and hydrogen technologies. By analyzing the different losses associated with the various equipment items involved, this work identifies the different improvements necessary to increase the viability of these technologies for commercial deployment. The stand-alone power system installed at Kahua Ranch on the Big Island of Hawaii required the development of the necessary tools to connect, manage and monitor such a system. It also helped the electrolyzer supplier to adapt its unit to the stand-alone power system application. Hydrogen fuel purity assessments conducted at the Hawai‘i Natural Energy Institute (HNEI) fuel cell test facility yielded additional knowledge regarding fuel cell performance degradation due to exposure to several different fuel contaminants. In addition, a novel fitting strategy was developed to permit accurate separation of the degradation of fuel cell performance due to fuel impurities from other losses. A specific standard MEA and a standard flow field were selected for use in future small-scale fuel cell experiments. Renewable hydrogen production research was conducted using photoelectrochemical (PEC) devices, hydrogen production from biomass, and biohydrogen analysis. PEC device activities explored novel configurations of ‘traditional’ photovoltaic materials for application in high-efficiency photoelectrolysis for solar hydrogen production. The model systems investigated involved combinations of copper-indium-gallium-diselenide (CIGS) and hydrogenated amorphous silicon (a-Si:H). A key result of this work was the establishment of a robust “three-stage” fabrication process at HNEI for high-efficiency CIGS thin film solar cells. The other key accomplishment was the development of models, designs and prototypes of novel ‘four-terminal’ devices integrating high-efficiency CIGS and a-Si:H with operating features compatible with high-efficiency photoelectrochemical (PEC) water-splitting. The objective of one activity under the hydrogen production from biomass task was to conduct parametric testing of the Pearson gasifier and to determine the effects of gasifier operating conditions on the gas yields and quality. The hydrogen yield from this gasifier was evaluated in a parametric test series over a range of residence times from 0.8 to 2.2 seconds. H2 concentrations as high as 55% (volume) were measured in the product gas at the longer residence times and this corresponds to a hydrogen yield of 90 kg per tonne of bagasse without gas upgrading. The objective of another activity was to develop hot gas clean-up capabilities for the HNEI gasifier test facility to support hydrogen-from-biomass research. The product gas stream at the outlet of the hot gas filter was characterized for concentrations of permanent gas species and contaminants. Biomass feedstock processing activity included a preliminary investigation into methods for processing sugar cane trash at the Puunene Sugar Factory on the island of Maui, Hawaii. The objective of the investigation was to explore treatment methods that would enable the successful use of cane trash as fuel for the production of hydrogen via gasification. Analyses were completed for the technical and economic feasibility of producing biofuel from photosynthetic marine microbes on a commercial scale. Results included estimates for total costs, energy efficiency, and return on investment. The biohydrogen team undertook a comprehensive review of the field and came to what is considered a realistic conclusion. To summarize, continued research is recommended in the fundamentals of the science related to genetic engineering and specific topics to cover knowledge gaps. In the meantime, the team also advocates continued development of related processes which can be linked to pollution control and other real world applications. The extra revenues hydrogen can provide to these multi-product systems can improve profitability. The fact of the matter, though, is that the focused commercialization of hydrogen from biological processes awaits some necessary scientific breakthroughs and much higher conventional energy prices.

  14. NREL: Energy Systems Integration - Facilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    houses research to overcome challenges related to the interconnection of distributed energy systems with and the integration of clean energy technologies into the electricity...

  15. Resilient Core Networks for Energy Distribution

    SciTech Connect (OSTI)

    Kuntze, Nicolai; Rudolph, Carsten; Leivesley, Sally; Manz, David O.; Endicott-Popovsky, Barbara E.

    2014-07-28

    Abstract—Substations and their control are crucial for the availability of electricity in today’s energy distribution. Ad- vanced energy grids with Distributed Energy Resources require higher complexity in substations, distributed functionality and communication between devices inside substations and between substations. Also, substations include more and more intelligent devices and ICT based systems. All these devices are connected to other systems by different types of communication links or are situated in uncontrolled environments. Therefore, the risk of ICT based attacks on energy grids is growing. Consequently, security measures to counter these risks need to be an intrinsic part of energy grids. This paper introduces the concept of a Resilient Core Network to interconnected substations. This core network provides essen- tial security features, enables fast detection of attacks and allows for a distributed and autonomous mitigation of ICT based risks.

  16. Distributed Optimization System

    DOE Patents [OSTI]

    Hurtado, John E.; Dohrmann, Clark R.; Robinett, III, Rush D.

    2004-11-30

    A search system and method for controlling multiple agents to optimize an objective using distributed sensing and cooperative control. The search agent can be one or more physical agents, such as a robot, and can be software agents for searching cyberspace. The objective can be: chemical sources, temperature sources, radiation sources, light sources, evaders, trespassers, explosive sources, time dependent sources, time independent sources, function surfaces, maximization points, minimization points, and optimal control of a system such as a communication system, an economy, a crane, and a multi-processor computer.

  17. Integrating Renewable Energy into the Transmission and Distribution System of the U.S. Virgin Islands

    Broader source: Energy.gov [DOE]

    This report describes one area in which islands may lead: integrating a high percentage of renewable energy resources into an isolated grid. In addition, it explores the challenges, feasibility, and potential benefits of interconnecting the USVI grids with the much larger Puerto Rican grid.

  18. Distribution system stability, reliability and protective relaying due to incorporation of dispersed energy sources. Master's thesis

    SciTech Connect (OSTI)

    Allison, K.L.

    1984-01-01

    This thesis discusses impacts and issues brought about by the enactment of the Public Utilities Regulatory Policies Act of 1978. The United States power grid has a history of safe, economical, reliable service that, some feel, is threatened by the encroachment of small Dispersed Energy Sources, with possible inexperienced developers. The quality of electrical power from such sources is in question, as is power grid stability and reliability. Safety is another factor where methodry is subject to the incentives of the party whose viewpoint is sought. Much controversy is caused by the Act leaving methods of implementation to the individual States. The settlement, in one State, of some question in dispute forms no basis for extrapolation into other States. This leaves a potential developer with some uncertainty as to his options and advantages in assessing the incentives for investing in a Dispersed Energy Source. And such incentives form the thrust of the Act. This thesis brings these issues to the force and examines them for significance and possible resolution. It evaluates the outlook for significance and possible resolution. It evaluates the outlook of the Utility, the Dispersed Energy Source, and the Public for motivation and attempts to strike a balance between their opinions in reaching conclusions. Gray areas are addressed and possible remedies are offered.

  19. Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy, Energy Storage, Energy Storage Systems, News, News & Events, Partnership, Renewable Energy, Research & Capabilities, Systems Analysis, Water Power Natural Energy ...

  20. Improving Energy Efficiency by Developing Components for Distributed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Thermoelectric (TE) HVAC Energy Efficient HVAC System ...

  1. Distributed road assessment system

    DOE Patents [OSTI]

    Beer, N. Reginald; Paglieroni, David W

    2014-03-25

    A system that detects damage on or below the surface of a paved structure or pavement is provided. A distributed road assessment system includes road assessment pods and a road assessment server. Each road assessment pod includes a ground-penetrating radar antenna array and a detection system that detects road damage from the return signals as the vehicle on which the pod is mounted travels down a road. Each road assessment pod transmits to the road assessment server occurrence information describing each occurrence of road damage that is newly detected on a current scan of a road. The road assessment server maintains a road damage database of occurrence information describing the previously detected occurrences of road damage. After the road assessment server receives occurrence information for newly detected occurrences of road damage for a portion of a road, the road assessment server determines which newly detected occurrences correspond to which previously detected occurrences of road damage.

  2. Control mechanism for attenuation of thermal energy pulses using cold circulators in the cryogenic distribution system of fusion devices in tokamak configuration

    SciTech Connect (OSTI)

    Bhattacharya, R.; Sarkar, B.; Vaghela, H.; Shah, N.

    2014-01-29

    Operation and control of superconducting (SC) magnets in the fusion devices having tokamak configuration opens up the domain of varying peak thermal energy environment as a function of time, commensurate with the plasma pulses. The varied thermal energy environment, thus propagated to upstream of the cooling system, is responsible for the system level instability of the overall cryogenic system. The cryogenic distribution system, the regime of first impact point, therefore, has to be tuned so as to stay at the nearly stable zone of operation. The configuration of the cryogenic distribution system, considered in the present study, involves a liquid helium (LHe) bath as a thermal buffer, LHe submerged heat exchangers and cold circulator apart from the valves for implementations of the precise controls. The cold circulator supplies the forced flow supercritical helium, used for the cooling of SC magnets. The transients of the thermal energy pulses can be attenuated in the cryogenic distribution system by various methodologies. One of the adopted methodologies in the present study is with the precise speed control of the cold circulators. The adopted methodology is applied to various configurations of arrangements of internal components in the distribution system for obtaining system responses with superior attenuation of energy pulses. The process simulation approach, assumptions, considered inputs and constraints, process modeling with different configuration as well as results to accomplish the control scheme for the attenuation of the thermal energy pulses are described.

  3. DISTRIBUTED ENERGY PROJECTS SUPPLEMENTS TO RENEWABLE ENERGY AND...

    Office of Environmental Management (EM)

    SUPPLEMENTS TO RENEWABLE ENERGY AND EFFICIENCY ENERGY PROJECTS SOLICITATION DISTRIBUTED ENERGY PROJECTS SUPPLEMENTS TO RENEWABLE ENERGY AND EFFICIENCY ENERGY PROJECTS SOLICITATION ...

  4. Quality monitored distributed voting system

    DOE Patents [OSTI]

    Skogmo, David

    1997-01-01

    A quality monitoring system can detect certain system faults and fraud attempts in a distributed voting system. The system uses decoy voters to cast predetermined check ballots. Absent check ballots can indicate system faults. Altered check ballots can indicate attempts at counterfeiting votes. The system can also cast check ballots at predetermined times to provide another check on the distributed voting system.

  5. Quality monitored distributed voting system

    DOE Patents [OSTI]

    Skogmo, D.

    1997-03-18

    A quality monitoring system can detect certain system faults and fraud attempts in a distributed voting system. The system uses decoy voters to cast predetermined check ballots. Absent check ballots can indicate system faults. Altered check ballots can indicate attempts at counterfeiting votes. The system can also cast check ballots at predetermined times to provide another check on the distributed voting system. 6 figs.

  6. Articles about Distributed Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Articles about Distributed Wind Articles about Distributed Wind Below are stories about distributed wind featured by the U.S. Department of Energy (DOE) Wind Program. October 1,...

  7. Strategy Guideline. Compact Air Distribution Systems

    SciTech Connect (OSTI)

    Burdick, Arlan

    2013-06-01

    This guideline discusses the benefits and challenges of using a compact air distribution system to handle the reduced loads and reduced air volume needed to condition the space within an energy efficient home. The decision criteria for a compact air distribution system must be determined early in the whole-house design process, considering both supply and return air design. However, careful installation of a compact air distribution system can result in lower material costs from smaller equipment, shorter duct runs, and fewer outlets; increased installation efficiencies, including ease of fitting the system into conditioned space; lower loads on a better balanced HVAC system, and overall improved energy efficiency of the home.

  8. NREL: Energy Systems Integration - Energy Systems Integration News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Systems Integration News Read the latest news and announcements about energy systems integration from NREL. Subscribe to the RSS feed RSS . Learn about RSS. April 28, 2016 INTEGRATE Partner Demonstrates Active Network Management of Distributed Energy Resources at NREL New York-based Smarter Grid Solutions has employed its Active Network Management system at the Energy Systems Integration Facility to manage and maintain a modeled distribution grid within normal operating limits through the

  9. Building America Webinar: Ductless Hydronic Distribution Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Ductless Hydronic Distribution Systems Building America Webinar: Ductless Hydronic Distribution Systems This webinar was presented by research team Alliance for Residential Building Innovation (ARBI), and reviewed findings from a feasibility study of ductless hydronic distribution systems in new homes and deep retrofits. File webinar_arbi_20111108.wmv More Documents & Publications Building America Webinar: National Residential Efficiency Measures Database Unveiled

  10. Tips: Booklet Distribution | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Tips: Booklet Distribution Tips: Booklet Distribution Tips: Booklet Distribution There are many ways to obtain Energy Saver-Tips on Saving Money and Energy at Home! You can access Energy Saver, as well as the Spanish-language Energy Saver, in the following ways. Order booklets in bulk quantities through the Energy Saver Partnership. Organizations can order booklet copies in bulk for distribution to your customers, members, or employees. The Energy Saver booklet and the Spanish Energy Saver

  11. A Test Bed for Self-regulating Distribution Systems: Modeling Intergrated Renewable Energy and Demand Response in the GridLAB-D/MATLAB Environment

    SciTech Connect (OSTI)

    Wang, Dan; de Wit, Braydon; Parkinson, Simon; Fuller, Jason C.; Chassin, David P.; Crawford, Curran; Djilali, Ned

    2012-01-16

    This paper discusses the development of a simulation test bed permitting the study of integrated renewable energy generators and controlled distributed heat pumps operating within distribution systems. The test bed is demonstrated in this paper by addressing the important issue of the self-regulating effect of consumer-owned air-source heat pumps on the variability induced by wind power integration, particularly when coupled with increased access to demand response realized through a centralized load control strategy.

  12. Distributed Energy Technology Simulator: Microturbine Demonstration, October 2001

    Broader source: Energy.gov [DOE]

    results of a demonstration of a microturbine simulator used to mimic the behavior of a distributed energy resource on an electrical system

  13. Energy Efficiency, Renewables, Advanced Transmission and Distribution

    Energy Savers [EERE]

    Technologies (2008) | Department of Energy Renewables, Advanced Transmission and Distribution Technologies (2008) Energy Efficiency, Renewables, Advanced Transmission and Distribution Technologies (2008) PDF icon Energy Efficiency, Renewables, Advanced Transmission and Distribution Technologies (2008) More Documents & Publications Financial Institution Partnership Program - Commercial Technology Renewable Energy Generation Projects Issued: October 7, 2009 Nuclear Power Facilities (2008)

  14. Measuring Advances in HVAC Distribution System Design

    SciTech Connect (OSTI)

    Franconi, E.

    1998-05-01

    Substantial commercial building energy savings have been achieved by improving the performance of the HV AC distribution system. The energy savings result from distribution system design improvements, advanced control capabilities, and use of variable-speed motors. Yet, much of the commercial building stock remains equipped with inefficient systems. Contributing to this is the absence of a definition for distribution system efficiency as well as the analysis methods for quantifying performance. This research investigates the application of performance indices to assess design advancements in commercial building thermal distribution systems. The index definitions are based on a first and second law of thermodynamics analysis of the system. The second law or availability analysis enables the determination of the true efficiency of the system. Availability analysis is a convenient way to make system efficiency comparisons since performance is evaluated relative to an ideal process. A TRNSYS simulation model is developed to analyze the performance of two distribution system types, a constant air volume system and a variable air volume system, that serve one floor of a large office building. Performance indices are calculated using the simulation results to compare the performance of the two systems types in several locations. Changes in index values are compared to changes in plant energy, costs, and carbon emissions to explore the ability of the indices to estimate these quantities.

  15. NREL: Energy Systems Integration - Energy Systems Integration Newsletter

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Systems Integration Newsletter April 2016 Read the latest energy systems integration (ESI) news from NREL. Photo of a group of people in a laboratory INTEGRATE Partner Demonstrates Active Network Management of DER New York-based Smarter Grid Solutions (SGS Inc.) has employed its Active Network Management (ANM) system at NREL to manage and maintain a modeled distribution grid within normal operating limits through the autonomous management, coordination, and control of distributed energy

  16. Articles about Distributed Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distributed Wind Articles about Distributed Wind Below are stories about distributed wind featured by the U.S. Department of Energy (DOE) Wind Program. February 26, 2016 A Pika Energy wind turbine is the newest addition to the Department of Energy's headquarters lobby in Washington, D.C. | Photo by Mike Mueller, The Hannon Group Wind Turbine Showcased in Energy Department Headquarters The Energy Department supported wind turbine innovation with Pika Energy-developing a process that cut the cost

  17. Title XVII Supplements on Distributed Energy Projects

    Energy Savers [EERE]

    Title XVII Supplements on Distributed Energy Projects Distributed Energy Projects are currently driving innovation and transforming U.S. energy markets. Technologies such as rooftop solar, energy storage, smart grid technology, and methane capture for oil and gas wells can modernize our energy infrastructure, enhance energy reliability, create economic opportunity, and reduce greenhouse gas emissions. However, many of these distributed technologies currently face market barriers since commercial

  18. The Impact of Distributed Wind on Bulk Power System Operations in ISO-NE (Presentation), NREL (National Renewable Energy Laboratory)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Distributed Wind on Bulk Power System Operations in ISO-NE 13 th Wind Integration Workshop Carlo Brancucci Martinez-Anido, Bri-Mathias Hodge, and David Palchak (NREL); and Jari Miettinen (VTT) Berlin, Germany November 11, 2014 NREL/PR-5D00-63083 2 Motivation and Scope * Wind integration is hindered in the U.S. power system o The best wind resources are far from the main load centers o There are difficult regulatory and legal hurdles and substantial investments are required to develop new

  19. Distributed Automated Demand Response - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Analysis Energy Analysis Electricity Transmission Electricity Transmission Find More Like This Return to Search Distributed Automated Demand Response Lawrence Livermore ...

  20. Distributed Energy Technology Simulator: Microturbine Demonstration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Simulator: Microturbine Demonstration, October 2001 Distributed Energy Technology Simulator: Microturbine Demonstration, October 2001 This 2001 paper discusses the National Rural ...

  1. Energy Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Systems Energy Systems PDF icon webinarsteamtrap20100605.pdf PDF icon Heating ... Waste Heat Management Options for Improving Industrial Process Heating Systems Reduce ...

  2. NREL: Energy Systems Integration - Subscribe

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    News Energy Systems Integration eNewsletter is a quarterly newsletter designed to keep industry partners, stakeholders, associations, and educational institutes up to date on the new Energy Systems Integration Facility and energy systems integration activities at NREL. Subscribe Please provide the following information to subscribe to the Energy Systems Integration eNewsletter. The mailing list addresses are never sold, rented, distributed, or disclosed in any way. * indicates required Email

  3. Distributed Wind | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distributed Wind Distributed Wind The Wind Program's activities in wind technologies in distributed applications-or distributed wind-address the performance and reliability challenges associated with smaller turbines by focusing on technology development, testing, certification, and manufacturing. What is Distributed Wind? Photo of a turbine behind a school. The Wind Program defines distributed wind in terms of technology application, based on a wind plant's location relative to end-use and

  4. Tips: Booklet Distribution | Department of Energy

    Office of Environmental Management (EM)

    Addthis Tips: Booklet Distribution There are many ways to obtain Energy Saver-Tips on Saving Money and Energy at Home You can access Energy Saver, as well as the...

  5. Distributed Energy Communications & Controls, Lab Activities - Summary

    SciTech Connect (OSTI)

    Rizy, D Tom

    2010-01-01

    The purpose is to develop controls for inverter-based renewable and non-renewable distributed energy systems to provide local voltage, power and power quality support for loads and the power grid. The objectives are to (1) develop adaptive controls for inverter-based distributed energy (DE) systems when there are multiple inverters on the same feeder and (2) determine the impact of high penetration high seasonal energy efficiency ratio (SEER) air conditioning (A/C) units on power systems during sub-transmission faults which can result in an A/C compressor motor stall and assess how inverter-based DE can help to mitigate the stall event. The Distributed Energy Communications & Controls Laboratory (DECC) is a unique facility for studying dynamic voltage, active power (P), non-active power (Q) and power factor control from inverter-based renewable distributed energy (DE) resources. Conventionally, inverter-based DE systems have been designed to provide constant, close to unity power factor and thus not provide any voltage support. The DECC Lab interfaces with the ORNL campus distribution system to provide actual power system testing of the controls approach. Using mathematical software tools and the DECC Lab environment, we are developing and testing local, autonomous and adaptive controls for local voltage control and P & Q control for inverter-based DE. We successfully tested our active and non-active power (P,Q) controls at the DECC laboratory along with voltage regulation controls. The new PQ control along with current limiter controls has been tested on our existing inverter test system. We have tested both non-adaptive and adaptive control modes for the PQ control. We have completed several technical papers on the approaches and results. Electric power distribution systems are experiencing outages due to a phenomenon known as fault induced delayed voltage recovery (FIDVR) due to air conditioning (A/C) compressor motor stall. Local voltage collapse from FIDVR is occurring in part because modern air-conditioner and heat pump compressor motors are much more susceptible to stalling during a voltage sag or dip than older motors. These motors can stall in less than three cycles (0.05 s) when a fault, for example, on the sub-transmission system, causes voltage on the distribution system to sag to 70% or less of nominal. We completed a new test system for A/C compressor motor stall testing at the DECC Lab. The A/C Stall test system is being used to characterize when and how compressor motors stall under low voltage and high compressor pressure conditions. However, instead of using air conditioners, we are using high efficiency heat pumps. We have gathered A/C stall characterization data for both sustained and momentary voltage sags of the test heat pump. At low enough voltage, the heat pump stalls (compressor motor stops and draws 5-6 times normal current in trying to restart) due to low inertia and low torque of the motor. For the momentary sag, we are using a fast acting contactor/switch to quickly switch from nominal to the sagged voltage in cycles.

  6. US Solar Distributing | Open Energy Information

    Open Energy Info (EERE)

    Distributing Place: California Product: California-based distributor of PV modules, inverters, mounting systems and accessories. References: US Solar Distributing1 This article...

  7. Distributed Energy Research Center | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Distributed Energy Research Center Argonne's Distributed Energy Research Center (DERC) allows researchers to develop and demonstrate novel technologies to reduce emissions and improve efficiency of prime movers used in Distributed Energy applications, primarily stationary reciprocating engines and small gas turbines. Since the prime movers are stationary, the emphasis is in efficient conversion of energy from gaseous fuels and renewables such as wind to electricity. The breadth of the work

  8. National Renewable Energy Laboratory's Energy Systems Integration...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    National Renewable Energy Laboratory's Energy Systems Integration Facility Overview National Renewable Energy Laboratory's Energy Systems Integration Facility Overview This ...

  9. The Integrated Grid Modeling System (IGMS) for Combined Transmission and Distribution Simulation (NREL), National Renewable Energy Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Operational Management » History » DOE History Timeline » The Institutional Origins of the Department of Energy The Institutional Origins of the Department of Energy PDF icon Origins-of-the-Department-of-Energy.pdf More Documents & Publications National Offshore Wind Energy Grid Interconnection Study (NOWEGIS) Response to several FOIA requests - Renewable Energy. EIS-0002: Final Environmental Impact Statement Aviation Management Green Leases Executive Secretariat Energy

  10. Development of an Integrated Distribution Management System

    SciTech Connect (OSTI)

    Schatz, Joe E.

    2010-10-20

    This final report details the components, functionality, costs, schedule and benefits of developing an Integrated Distribution Management System (IDMS) for power distribution system operation. The Distribution Automation (DA) and Supervisory Control and Data Acquisition (SCADA) systems used by electric power companies to manage the distribution of electric power to retail energy consumers are vital components of the Nation’s critical infrastructure. Providing electricity is an essential public service and a disruption in that service, if not quickly restored, could threaten the public safety and the Nation’s economic security. Our Nation’s economic prosperity and quality of life have long depended on the essential services that utilities provide; therefore, it is necessary to ensure that electric utilities are able to conduct their operations safely and efficiently. A fully integrated technology of applications is needed to link various remote sensing, communications and control devices with other information tools that help guide Power Distribution Operations personnel. A fully implemented IDMS will provide this, a seamlessly integrated set of applications to raise electric system operating intelligence. IDMS will enhance DA and SCADA through integration of applications such as Geographic Information Systems, Outage Management Systems, Switching Management and Analysis, Operator Training Simulator, and other Advanced Applications, including unbalanced load flow and fault isolation/service restoration. These apps are capable of utilizing and obtaining information from appropriately installed DER, and by integrating disparate systems, the Distribution Operators will benefit from advanced capabilities when analyzing, controlling and operating the electric system.

  11. Energy Systems Integration

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Systems Integration Ben Kroposki, PhD, PE Director, Energy Systems Integration National Renewable Energy Laboratory 2 Reducing investment risk and optimizing systems in a rapidly ...

  12. Effects of Distributed Energy Resources on Conservation Voltage Reduction (CVR)

    SciTech Connect (OSTI)

    Singh, Ruchi; Tuffner, Francis K.; Fuller, Jason C.; Schneider, Kevin P.

    2011-10-10

    Conservation Voltage Reduction (CVR) is one of the cheapest technologies which can be intelligently leveraged to provide considerable energy savings. The addition of renewables in the form of distributed resources can affect the entire power system, but more importantly, affects the traditional substation control schemes at the distribution level. This paper looks at the effect on energy consumption, peak load reduction, and voltage profile changes due to the addition of distributed generation in a distribution feeder using combinations of volt var control. An IEEE 13-node system is used to simulate the various cases. Energy savings and peak load reduction for different simulation scenarios are compared.

  13. Improving Energy Efficiency by Developing Components for Distributed

    Broader source: Energy.gov (indexed) [DOE]

    Cooling and Heating Based on Thermal Comfort Modeling[ Thermoelectric (TE) HVAC ] | Department of Energy results from TE HVAC project to add detail to a human thermal comfort model and further allow load reduction in the climate control energy through a distributed TE network PDF icon deer11_bozeman.pdf More Documents & Publications Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Energy Efficient HVAC System for

  14. Distribution Drive | Open Energy Information

    Open Energy Info (EERE)

    navigation, search Name: Distribution Drive Place: Dallas, Texas Zip: 75205 Product: Biodiesel fuel distributor. Coordinates: 32.778155, -96.795404 Show Map Loading map......

  15. Distributed Energy Resources Market Diffusion Model

    SciTech Connect (OSTI)

    Maribu, Karl Magnus; Firestone, Ryan; Marnay, Chris; Siddiqui,Afzal S.

    2006-06-16

    Distributed generation (DG) technologies, such as gas-fired reciprocating engines and microturbines, have been found to be economically beneficial in meeting commercial-sector electrical, heating, and cooling loads. Even though the electric-only efficiency of DG is lower than that offered by traditional central stations, combined heat and power (CHP) applications using recovered heat can make the overall system energy efficiency of distributed energy resources (DER) greater. From a policy perspective, however, it would be useful to have good estimates of penetration rates of DER under various economic and regulatory scenarios. In order to examine the extent to which DER systems may be adopted at a national level, we model the diffusion of DER in the US commercial building sector under different technical research and technology outreach scenarios. In this context, technology market diffusion is assumed to depend on the system's economic attractiveness and the developer's knowledge about the technology. The latter can be spread both by word-of-mouth and by public outreach programs. To account for regional differences in energy markets and climates, as well as the economic potential for different building types, optimal DER systems are found for several building types and regions. Technology diffusion is then predicted via two scenarios: a baseline scenario and a program scenario, in which more research improves DER performance and stronger technology outreach programs increase DER knowledge. The results depict a large and diverse market where both optimal installed capacity and profitability vary significantly across regions and building types. According to the technology diffusion model, the West region will take the lead in DER installations mainly due to high electricity prices, followed by a later adoption in the Northeast and Midwest regions. Since the DER market is in an early stage, both technology research and outreach programs have the potential to increase DER adoption, and thus, shift building energy consumption to a more efficient alternative.

  16. Comparison of heating and cooling energy consumption by HVAC system with mixing and displacement air distribution for a restaurant dining area in different climates

    SciTech Connect (OSTI)

    Zhivov, A.M.; Rymkevich, A.A.

    1998-12-31

    Different ventilation strategies to improve indoor air quality and to reduce HVAC system operating costs in a restaurant with nonsmoking and smoking areas and a bar are discussed in this paper. A generic sitting-type restaurant is used for the analysis. Prototype designs for the restaurant chain with more than 200 restaurants in different US climates were analyzed to collect the information on building envelope, dining area size, heat and contaminant sources and loads, occupancy rates, and current design practices. Four constant air volume HVAC systems wit h a constant and variable (demand-based) outdoor airflow rate, with a mixing and displacement air distribution, were compared in five representative US climates: cold (Minneapolis, MN); Maritime (Seattle, WA); moderate (Albuquerque, NM); hot-dry (Phoenix, AZ); and hot-humid (Miami, FL). For all four compared cases and climatic conditions, heating and cooling consumption by the HVAC system throughout the year-round operation was calculated and operation costs were compared. The analysis shows: Displacement air distribution allows for better indoor air quality in the breathing zone at the same outdoor air supply airflow rate due to contaminant stratification along the room height. The increase in outdoor air supply during the peak hours in Miami and Albuquerque results in an increase of both heating and cooling energy consumption. In other climates, the increase in outdoor air supply results in reduced cooling energy consumption. For the Phoenix, Minneapolis, and Seattle locations, the HVAC system operation with a variable outdoor air supply allows for a decrease in cooling consumption up to 50% and, in some cases, eliminates the use of refrigeration machines. The effect of temperature stratification on HVAC system parameters is the same for all locations; displacement ventilation systems result in decreased cooling energy consumption but increased heating consumption.

  17. Energy Department Announces Distributed Wind Competitiveness...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    projects led by Pika Energy, Northern Power Systems, Endurance Wind Power, and Urban Green Energy that will help drive down the cost of small and medium-sized wind energy systems. ...

  18. Coordinated Collaboration between Heterogeneous Distributed Energy Resources

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abdollahy, Shahin; Lavrova, Olga; Mammoli, Andrea

    2014-01-01

    A power distribution feeder, where a heterogeneous set of distributed energy resources is deployed, is examined by simulation. The energy resources include PV, battery storage, natural gas GenSet, fuel cells, and active thermal storage for commercial buildings. The resource scenario considered is one that may exist in a not too distant future. Two cases of interaction between different resources are examined. One interaction involves a GenSet used to partially offset the duty cycle of a smoothing battery connected to a large PV system. The other example involves the coordination of twenty thermal storage devices, each associated with a commercial building.more » Storage devices are intended to provide maximum benefit to the building, but it is shown that this can have a deleterious effect on the overall system, unless the action of the individual storage devices is coordinated. A network based approach is also introduced to calculate some type of effectiveness metric to all available resources which take part in coordinated operation. The main finding is that it is possible to achieve synergy between DERs on a system; however this required a unified strategy to coordinate the action of all devices in a decentralized way.« less

  19. Electric utility transmission and distribution upgrade deferral benefits from modular electricity storage : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Eyer, James M.

    2009-06-01

    The work documented in this report was undertaken as part of an ongoing investigation of innovative and potentially attractive value propositions for electricity storage by the United States Department of Energy (DOE) and Sandia National Laboratories (SNL) Electricity Storage Systems (ESS) Program. This study characterizes one especially attractive value proposition for modular electricity storage (MES): electric utility transmission and distribution (T&D) upgrade deferral. The T&D deferral benefit is characterized in detail. Also presented is a generalized framework for estimating the benefit. Other important and complementary (to T&D deferral) elements of possible value propositions involving MES are also characterized.

  20. 50 kW Power Block for Distributed Energy Applications - Energy Innovation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Portal Solar Photovoltaic Solar Photovoltaic Industrial Technologies Industrial Technologies Energy Storage Energy Storage Electricity Transmission Electricity Transmission Find More Like This Return to Search 50 kW Power Block for Distributed Energy Applications National Renewable Energy Laboratory Contact NREL About This Technology Actual prototype Actual prototype Technology Marketing Summary Distributed energy (DE) systems have begun to make a significant impact on energy supply and will

  1. Sandia Energy Distribution Grid Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    efforts-during-recent-houston-press-conferencefeed 0 Recent Sandia Secure, Scalable Microgrid Advanced Controls Research Accomplishments http:energy.sandia.gov...

  2. Properly Understanding the Impacts of Distributed Resources on Distribution Systems

    SciTech Connect (OSTI)

    Rizy, D Tom; Li, Fangxing; Li, Huijuan; Adhikari, Sarina; Kueck, John D

    2010-01-01

    The subject paper discusses important impacts of distributed resources on distribution networks and feeders. These include capacity, line losses, voltage regulation, and central system support (such as volt/var via central generators and substation) as the number, placement and penetration levels of distributed resources are varied. Typically, the impacts of distributed resources on the distribution system are studied by using steady-state rather than dynamic analysis tools. However, the response time and transient impacts of both system equipment (such as substation/feeder capacitors) and distributed resources needs to be taken into account and only dynamic analysis will provide the full impact results. ORNL is wrapping up a study of distributed resources interconnected to a large distribution system considering the above variables. A report of the study and its results will be condensed into a paper for this panel session. The impact of distributed resources will vary as the penetration level reaches the capacity of the distribution feeder/system. The question is how high of a penetration of distributed resource can be accommodated on the distribution feeder/system without any major changes to system operation, design and protection. The impacts most surely will vary depending upon load composition, distribution and level. Also, it is expected that various placement of distributed resources will impact the distribution system differently.

  3. Best Management Practice #3: Distribution System Audits, Leak Detection,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Repair | Department of Energy 3: Distribution System Audits, Leak Detection, and Repair Best Management Practice #3: Distribution System Audits, Leak Detection, and Repair A distribution system audit, or leak detection and repair program, may help federal facilities identify and reduce water losses and be better stewards of water as a resource. Overview Federal facilities in large campuses with expansive distribution systems can lose a significant amount of total water production and

  4. Building America Webinar: Ductless Hydronic Distribution Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Webinar: Ductless Hydronic Distribution Systems Building America Webinar: Ductless Hydronic Distribution Systems This webinar was presented by research team...

  5. Probability distribution of the vacuum energy density

    SciTech Connect (OSTI)

    Duplancic, Goran; Stefancic, Hrvoje; Glavan, Drazen

    2010-12-15

    As the vacuum state of a quantum field is not an eigenstate of the Hamiltonian density, the vacuum energy density can be represented as a random variable. We present an analytical calculation of the probability distribution of the vacuum energy density for real and complex massless scalar fields in Minkowski space. The obtained probability distributions are broad and the vacuum expectation value of the Hamiltonian density is not fully representative of the vacuum energy density.

  6. Distributed optimization system and method

    DOE Patents [OSTI]

    Hurtado, John E.; Dohrmann, Clark R.; Robinett, III, Rush D.

    2003-06-10

    A search system and method for controlling multiple agents to optimize an objective using distributed sensing and cooperative control. The search agent can be one or more physical agents, such as a robot, and can be software agents for searching cyberspace. The objective can be: chemical sources, temperature sources, radiation sources, light sources, evaders, trespassers, explosive sources, time dependent sources, time independent sources, function surfaces, maximization points, minimization points, and optimal control of a system such as a communication system, an economy, a crane, and a multi-processor computer.

  7. Laser spark distribution and ignition system

    DOE Patents [OSTI]

    Woodruff, Steven; McIntyre, Dustin L.

    2008-09-02

    A laser spark distribution and ignition system that reduces the high power optical requirements for use in a laser ignition and distribution system allowing for the use of optical fibers for delivering the low peak energy pumping pulses to a laser amplifier or laser oscillator. An optical distributor distributes and delivers optical pumping energy from an optical pumping source to multiple combustion chambers incorporating laser oscillators or laser amplifiers for inducing a laser spark within a combustion chamber. The optical distributor preferably includes a single rotating mirror or lens which deflects the optical pumping energy from the axis of rotation and into a plurality of distinct optical fibers each connected to a respective laser media or amplifier coupled to an associated combustion chamber. The laser spark generators preferably produce a high peak power laser spark, from a single low power pulse. The laser spark distribution and ignition system has application in natural gas fueled reciprocating engines, turbine combustors, explosives and laser induced breakdown spectroscopy diagnostic sensors.

  8. Voices of Experience | Advanced Distribution Management Systems_brochure.indd

    Energy Savers [EERE]

    Insights into Advanced Distribution Management Systems VOICES of Experience February, 2015 Prepared for the U.S. Department of Energy by the National Renewable Energy Laboratory under contract No. DE-AC36-08G028308, Subtask SG10.1011 in conjunction with Energetics Incorporated under contract No. GS-10F-0103J, Subtask J3806.0002. INSIGHTS INTO ADVANCED DISTRIBUTION MANAGEMENT SYSTEMS | DOE 3 Voices of Experience | Advanced Distribution Management Systems When people think of the electric power

  9. Category:Energy Distribution Organizations | Open Energy Information

    Open Energy Info (EERE)

    Help Apps Datasets Community Login | Sign Up Search Category Edit History Category:Energy Distribution Organizations Jump to: navigation, search Add a new Company Loading...

  10. ITP Industrial Distributed Energy: Combined Heat & Power Multifamily Performance Program-- Sea Park East 150 kW CHP System

    Broader source: Energy.gov [DOE]

    Overview of Sea Park East 150 kilowatt (kW) Combined Heat and Power (CHP) System in Brooklyn, New York

  11. Distributed Generation System Characteristics and Costs in the Buildings Sector

    Gasoline and Diesel Fuel Update (EIA)

    Distributed Generation System Characteristics and Costs in the Buildings Sector August 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 U.S. Energy Information Administration | Distributed Generation System Characteristics and Costs in the Buildings Sector i This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and

  12. Value Added Energy Information Systems VAEIS | Open Energy Information

    Open Energy Info (EERE)

    Solar, Wind energy Product: Provides turn-key monitoring systems for the performance of solar, wind, fuel cell and other distributed generation installations. Coordinates:...

  13. Mirasol Solar Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Mirasol Solar Energy Systems Jump to: navigation, search Logo: Mirasol Solar Energy Systems Name: Mirasol Solar Energy Systems Address: 101 Spring Road NE Place: Rio Rancho, New...

  14. Landfill Energy Systems LES | Open Energy Information

    Open Energy Info (EERE)

    Energy Systems LES Jump to: navigation, search Name: Landfill Energy Systems (LES) Place: Michigan Zip: 48393 Product: Landfill gas to energy systems project developer, gas...

  15. ENERGY EFFICIENCY AND ENVIRONMENTALLY FRIENDLY DISTRIBUTED ENERGY STORAGE BATTERY

    SciTech Connect (OSTI)

    LANDI, J.T.; PLIVELICH, R.F.

    2006-04-30

    Electro Energy, Inc. conducted a research project to develop an energy efficient and environmentally friendly bipolar Ni-MH battery for distributed energy storage applications. Rechargeable batteries with long life and low cost potentially play a significant role by reducing electricity cost and pollution. A rechargeable battery functions as a reservoir for storage for electrical energy, carries energy for portable applications, or can provide peaking energy when a demand for electrical power exceeds primary generating capabilities.

  16. Transportation Energy Systems Analysis

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems Analysis - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  17. Building a Smarter Distribution System in Pennsylvania

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    PPL is installing a distribution management system (DMS), distribution automation (DA) ... allows PPL to move forward with future automation projects. "Lack of an advanced DMS was ...

  18. NREL: Energy Analysis - Distributed Generation Energy Technology Capital

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Costs Bookmark and Share Distributed Generation Energy Technology Capital Costs Transparent Cost Database Button The following charts indicate recent capital cost estimates for distributed generation (DG) renewable energy technologies. The estimates are shown in dollars per installed kilowatt of generating capacity or thermal energy capacity for thermal technologies. The charts provide a compilation of available national-level cost data from a variety of sources. Costs in your specific

  19. Stationary/Distributed Generation Projects | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technology Validation » Stationary/Distributed Generation Projects Stationary/Distributed Generation Projects Stationary power is the most mature application for fuel cells. Stationary fuel cell units are used for backup power, power for remote locations, stand-alone power plants for towns and cities, distributed generation for buildings, and co-generation (in which excess thermal energy from electricity generation is used for heat). Approximately, 600 systems that produce 10 kilowatts or more

  20. NREL: Energy Systems Integration - Wyle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Wyle Photo of a glass cube containing power electronics equipment in a laboratory Prototype CUBE system at the ESIF PSIL. Photo by Dennis Schroeder, NREL Under a research agreement with Wyle Labs, NREL is working with the U.S. Army to develop the Consolidated Utility Base Energy (CUBE) System-a power distribution device that delivers power from solar, battery, and diesel generators to loads on forward operating bases. The CUBE was originally developed for the Army's Expeditionary Energy and

  1. Tailored ion energy distributions on plasma electrodes

    SciTech Connect (OSTI)

    Economou, Demetre J.

    2013-09-15

    As microelectronic device features continue to shrink approaching atomic dimensions, control of the ion energy distribution on the substrate during plasma etching and deposition becomes increasingly critical. The ion energy should be high enough to drive ion-assisted etching, but not too high to cause substrate damage or loss of selectivity. In many cases, a nearly monoenergetic ion energy distribution (IED) is desired to achieve highly selective etching. In this work, the author briefly reviews: (1) the fundamentals of development of the ion energy distribution in the sheath and (2) methods to control the IED on plasma electrodes. Such methods include the application of “tailored” voltage waveforms on an electrode in continuous wave plasmas, or the application of synchronous bias on a “boundary electrode” during a specified time window in the afterglow of pulsed plasmas.

  2. Technologies for Distributed Energy Resources. Federal Energy Management Program (FEMP) Technical Assistance Fact Sheet

    SciTech Connect (OSTI)

    Pitchford, P.; Brown, T.

    2001-07-16

    This four-page fact sheet describes distributed energy resources for Federal facilities, which are being supported by the U.S. Department of Energy's (DOE's) Federal Energy Management Program (FEMP). Distributed energy resources include both existing and emerging energy technologies: advanced industrial turbines and microturbines; combined heat and power (CHP) systems; fuel cells; geothermal systems; natural gas reciprocating engines; photovoltaics and other solar systems; wind turbines; small, modular biopower; energy storage systems; and hybrid systems. DOE FEMP is investigating ways to use these alternative energy systems in government facilities to meet greater demand, to increase the reliability of the power-generation system, and to reduce the greenhouse gases associated with burning fossil fuels.

  3. Distributed Energy Resources at Federal Facilities. Federal Energy Management Program (FEMP) Technical Assistance Fact Sheet

    SciTech Connect (OSTI)

    Pitchford, P.

    2001-07-16

    This two-page overview describes how the use of distributed energy resources at Federal facilities is being supported by the U.S. Department of Energy's (DOE's) Federal Energy Management Program (FEMP). Distributed energy resources include both existing and emerging energy technologies: advanced industrial turbines and microturbines; combined heat and power (CHP) systems; fuel cells; geothermal systems; natural gas reciprocating engines; photovoltaics and other solar systems; wind turbines; small, modular biopower; energy storage systems; and hybrid systems. DOE FEMP is investigating ways to use these alternative energy systems in government facilities to meet greater demand, to increase the reliability of the power-generation system, and to reduce the greenhouse gases associated with burning fossil fuels.

  4. Energy Systems Laboratory Groundbreaking

    ScienceCinema (OSTI)

    Hill, David; Otter, C.L.; Simpson, Mike; Rogers, J.W.;

    2013-05-28

    INL recently broke ground for a research facility that will house research programs for bioenergy, advanced battery systems, and new hybrid energy systems that integrate renewable, fossil and nuclear energy sources. Here's video from the groundbreaking ceremony for INL's new Energy Systems Laboratory. You can learn more about CAES research at http://www.facebook.com/idahonationallaboratory.

  5. Apollo Energy Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Apollo Energy Systems Inc Place: Pompano Beach, Florida Zip: FLA 33069 Sector: Hydro, Hydrogen, Renewable Energy Product: Apollo Energy Systems is a developer, producer, marketor...

  6. Distributed Energy Technology Characterization (Desiccant Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    desiccant technology and applications, and to show how these technologies can be designed to utilize the available thermal energy from a combined heat and power (CHP) system. ...

  7. Sandia's Distributed Energy Lab Marks FY15 Accomplishments, Adds...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Distributed Energy Lab Marks FY15 Accomplishments, Adds New Capabilities - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate ...

  8. Integration of HVAC System Design with Simplified Duct Distribution -

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building America Top Innovation | Department of Energy Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation This photo shows framed walls and HVAC distribution systems. This Top Innovation profile describes work by Building America research team IBACOS who field tested simplified duct designs in hundreds of homes, confirming the performance of

  9. Mail and Distribution | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Mail and Distribution Mail and Distribution The DOE Mail Center provides a variety of mail services for all official and other authorized mail for the Department of Energy and its employees. The services provided include the processing of all incoming postal mail, outgoing official mail, internal mail processing, accountable mail processing, pouch mail, a variety of overnight express mail services, directory services, and pick-up and delivery services. The Mail Management Memorandum (pdf)

  10. ITP Industrial Distributed Energy: Combined Heat and Power -...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ITP Industrial Distributed Energy: Combined Heat and Power - A Decade of Progress, A Vision for the Future ITP Industrial Distributed Energy: Combined Heat and Power - A Decade of ...

  11. ITP Industrial Distributed Energy: Combined Heat and Power -...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ITP Industrial Distributed Energy: Combined Heat and Power - A Decade of Progress, A Vision for the Future ITP Industrial Distributed Energy: Combined Heat and Power - A Decade of...

  12. Estimating the Benefits and Costs of Distributed Energy Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Estimating the Benefits and Costs of Distributed Energy Technologies Workshop - Agenda and Summary Estimating the Benefits and Costs of Distributed Energy Technologies Workshop -...

  13. President Obama Announces LPO Support for Distributed Energy...

    Energy Savers [EERE]

    President Obama Announces LPO Support for Distributed Energy Projects, New Guidance Includes Fuel Cells President Obama Announces LPO Support for Distributed Energy Projects, New ...

  14. Estimating the Benefits and Costs of Distributed Energy Technologies...

    Office of Environmental Management (EM)

    Benefits and Costs of Distributed Energy Technologies Workshop - Agenda and Summary Estimating the Benefits and Costs of Distributed Energy Technologies Workshop - Agenda and ...

  15. Analysis Model for Domestic Hot Water Distribution Systems: Preprint

    SciTech Connect (OSTI)

    Maguire, J.; Krarti, M.; Fang, X.

    2011-11-01

    A thermal model was developed to estimate the energy losses from prototypical domestic hot water (DHW) distribution systems for homes. The developed model, using the TRNSYS simulation software, allows researchers and designers to better evaluate the performance of hot water distribution systems in homes. Modeling results were compared with past experimental study results and showed good agreement.

  16. ITP Industrial Distributed Energy: Distributed Energy Program Project Profile: Verizon Central Office Building

    Broader source: Energy.gov [DOE]

    Keeping the High-Tech Industry Plugged-In with Onsite Energy: CHP System Provides Reliable Energy for a Verizon Telecommunications Switching Center

  17. Solar Energy System Exemption

    Broader source: Energy.gov [DOE]

    A solar energy system is defined as "any device that uses the heat of the sun as its primary energy source and is used to heat or cool the interior of a structure or swimming pool, or to heat...

  18. Energy Storage and Distributed Energy Generation Project, Final Project Report

    SciTech Connect (OSTI)

    Schwank, Johannes; Mader, Jerry; Chen, Xiaoyin; Mi, Chris; Linic, Suljo; Sastry, Ann Marie; Stefanopoulou, Anna; Thompson, Levi; Varde, Keshav

    2008-03-31

    This report serves as a Final Report under the “Energy Storage and Distribution Energy Generation Project” carried out by the Transportation Energy Center (TEC) at the University of Michigan (UM). An interdisciplinary research team has been working on fundamental and applied research on: -distributed power generation and microgrids, -power electronics, and -advanced energy storage. The long-term objective of the project was to provide a framework for identifying fundamental research solutions to technology challenges of transmission and distribution, with special emphasis on distributed power generation, energy storage, control methodologies, and power electronics for microgrids, and to develop enabling technologies for novel energy storage and harvesting concepts that can be simulated, tested, and scaled up to provide relief for both underserved and overstressed portions of the Nation’s grid. TEC’s research is closely associated with Sections 5.0 and 6.0 of the DOE "Five-year Program Plan for FY2008 to FY2012 for Electric Transmission and Distribution Programs, August 2006.”

  19. Quantitative Assessment of Distributed Energy Resource Benefits

    SciTech Connect (OSTI)

    Hadley, S.W.

    2003-05-22

    Distributed energy resources (DER) offer many benefits, some of which are readily quantified. Other benefits, however, are less easily quantifiable because they may require site-specific information about the DER project or analysis of the electrical system to which the DER is connected. The purpose of this study is to provide analytical insight into several of the more difficult calculations, using the PJM power pool as an example. This power pool contains most of Pennsylvania, New Jersey, Maryland, and Delaware. The techniques used here could be applied elsewhere, and the insights from this work may encourage various stakeholders to more actively pursue DER markets or to reduce obstacles that prevent the full realization of its benefits. This report describes methodologies used to quantify each of the benefits listed in Table ES-1. These methodologies include bulk power pool analyses, regional and national marginal cost evaluations, as well as a more traditional cost-benefit approach for DER owners. The methodologies cannot however determine which stakeholder will receive the benefits; that must be determined by regulators and legislators, and can vary from one location to another.

  20. Low jitter RF distribution system

    DOE Patents [OSTI]

    Wilcox, Russell; Doolittle, Lawrence; Huang, Gang

    2012-09-18

    A timing signal distribution system includes an optical frequency stabilized laser signal amplitude modulated at an rf frequency. A transmitter box transmits a first portion of the laser signal and receive a modified optical signal, and outputs a second portion of the laser signal and a portion of the modified optical signal. A first optical fiber carries the first laser signal portion and the modified optical signal, and a second optical fiber carries the second portion of the laser signal and the returned modified optical signal. A receiver box receives the first laser signal portion, shifts the frequency of the first laser signal portion outputs the modified optical signal, and outputs an electrical signal on the basis of the laser signal. A detector at the end of the second optical fiber outputs a signal based on the modified optical signal. An optical delay sensing circuit outputs a data signal based on the detected modified optical signal. An rf phase detect and correct signal circuit outputs a signal corresponding to a phase stabilized rf signal based on the data signal and the frequency received from the receiver box.

  1. Energy Delivery Systems Cybersecurity | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cybersecurity » Energy Delivery Systems Cybersecurity Energy Delivery Systems Cybersecurity About the Cybersecurity for Energy Delivery Systems Program A key mission of the Department of Energy's (DOE) Office of Electricity Delivery and Energy Reliability (OE) is to enhance the reliability and resilience of the nation's energy infrastructure. Cybersecurity of energy delivery systems is critical for protecting the energy infrastructure and the integral function that it serves in our lives. OE

  2. NETL: Energy Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Systems Program Gasification Systems The Gasification Systems Program is developing advanced technologies to reduce the cost and increase the efficiency of producing syngas. Gasifipedia | Feed Systems | Gasifier Optimization | Syngas Processing | Systems Analyses | Gasification Plant Databases Advanced Combustion The Advanced Combustion Program is developing technologies and new high-temperature materials that enable electricity production using low-cost, highly efficient, oxygen-fired

  3. Energy Storage Systems

    SciTech Connect (OSTI)

    Conover, David R.

    2013-12-01

    Energy Storage Systems – An Old Idea Doing New Things with New Technology article for the International Assoication of ELectrical Inspectors

  4. Market Assessment of Distributed Energy in New Commercial and Institutional

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Building and Critical Infrastructure Facilities, September 2006 | Department of Energy Market Assessment of Distributed Energy in New Commercial and Institutional Building and Critical Infrastructure Facilities, September 2006 Market Assessment of Distributed Energy in New Commercial and Institutional Building and Critical Infrastructure Facilities, September 2006 Potential benefits of distributed energy, or distributed generation, include reduced grid congestion, increased overall

  5. Megawatt Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Energy Systems Place: Zionsville, Indiana Sector: Renewable Energy, Services, Solar, Wind energy Phone Number: 317.797.3381 Website: www.mwenergysystems.com Coordinates:...

  6. Independent Energy Systems IES | Open Energy Information

    Open Energy Info (EERE)

    IES Jump to: navigation, search Name: Independent Energy Systems (IES) Place: Santa Cruz, California Zip: 95062 Product: Independent Energy Systems sells, designs, and installs...

  7. Alstom Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Alstom Energy Systems Jump to: navigation, search Name: Alstom Energy Systems Address: 3 avenue Andr Malraux Place: Levallois-Perret Cedex, France Website: www.alstom.com...

  8. Solimpeks Solar Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Solimpeks Solar Energy Systems Jump to: navigation, search Name: Solimpeks Solar Energy Systems Place: Karatay - KONYA, Turkey Zip: 42300 Sector: Solar Product: Turkish...

  9. Rand Solar Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Rand Solar Energy Systems Jump to: navigation, search Name: Rand Solar Energy Systems Place: Petach Tikva, Israel Zip: 49130 Sector: Solar Product: Israel-based manufacturer and...

  10. Thermal Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Energy Systems Jump to: navigation, search Name: Thermal Energy Systems Place: London, United Kingdom Sector: Biomass Product: UK based company that constructs and installs boilers...

  11. American Alternative Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Alternative Energy Systems Jump to: navigation, search Name: American Alternative Energy Systems Place: Denton, Texas Zip: 76209 Product: An American company involved in project...

  12. Renewable Energy Systems Americas | Open Energy Information

    Open Energy Info (EERE)

    Americas Jump to: navigation, search Name: Renewable Energy Systems Americas Place: Broomfield, CO Website: www.res-americas.com References: Renewable Energy Systems Americas1...

  13. Bio Energy Systems LLC | Open Energy Information

    Open Energy Info (EERE)

    search Name: Bio-Energy Systems LLC Place: san Anselmo, California Zip: 94960 Product: Biodiesel producer in Vallejo, California. References: Bio-Energy Systems LLC1 This...

  14. Exploring Distributed Energy Alternatives to Electrical Distribution Grid Expansion in Souhern California Edison Service Territory

    SciTech Connect (OSTI)

    Stovall, Therese K; Kingston, Tim

    2005-12-01

    Distributed energy (DE) technologies have received much attention for the energy savings and electric power reliability assurances that may be achieved by their widespread adoption. Fueling the attention have been the desires to globally reduce greenhouse gas emissions and concern about easing power transmission and distribution system capacity limitations and congestion. However, these benefits may come at a cost to the electric utility companies in terms of lost revenue and concerns with interconnection on the distribution system. This study assesses the costs and benefits of DE to both consumers and distribution utilities and expands upon a precursory study done with Detroit Edison (DTE)1, by evaluating the combined impact of DE, energy-efficiency, photovoltaics (a use of solar energy), and demand response that will shape the grid of the future. This study was funded by the U.S. Department of Energy (DOE), Gas Research Institute (GRI), American Electric Power (AEP), and Gas Technology Institute's (GTI) Distributed Energy Collaborative Program (DECP). It focuses on two real Southern California Edison (SCE) circuits, a 13 MW suburban circuit fictitiously named Justice on the Lincoln substation, and an 8 MW rural circuit fictitiously named Prosper on the Washington Substation. The primary objectives of the study were threefold: (1) Evaluate the potential for using advanced energy technologies, including DE, energy-efficiency (EE), demand response, electricity storage, and photovoltaics (PV), to reshape electric load curves by reducing peak demand, for real circuits. (2) Investigate the potential impact on guiding technology deployment and managing operation in a way that benefits both utilities and their customers by: (a) Improving grid load factor for utilities; (b) Reducing energy costs for customers; and (c) Optimizing electric demand growth. (3) Demonstrate benefits by reporting on a recently installed advanced energy system at a utility customer site. This study showed that advanced energy technologies are economical for many customers on the two SCE circuits analyzed, providing certain customers with considerable energy cost savings. Using reasonable assumptions about market penetration, the study showed that adding distributed generation would reduce peak demand on the two circuits enough to defer the need to upgrade circuit capacity. If the DE is optimally targeted, the deferral could economically benefit SCE, with cost savings that outweigh the lost revenues due to lower sales of electricity. To a lesser extent, economically justifiable energy-efficiency, photovoltaic technologies, and demand response could also help defer circuit capacity upgrades by reducing demand.

  15. A Bio-Based Fuel Cell for Distributed Energy Generation

    SciTech Connect (OSTI)

    Anthony Terrinoni; Sean Gifford

    2008-06-30

    The technology we propose consists primarily of an improved design for increasing the energy density of a certain class of bio-fuel cell (BFC). The BFCs we consider are those which harvest electrons produced by microorganisms during their metabolism of organic substrates (e.g. glucose, acetate). We estimate that our technology will significantly enhance power production (per unit volume) of these BFCs, to the point where they could be employed as stand-alone systems for distributed energy generation.

  16. Advanced Distribution Management Systems for Grid Modernization --

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    High-Level Use Cases for DMS | Argonne National Laboratory Advanced Distribution Management Systems for Grid Modernization -- High-Level Use Cases for DMS Title Advanced Distribution Management Systems for Grid Modernization -- High-Level Use Cases for DMS Publication Type Report Year of Publication 2016 Authors Wang, J, Lu, X, Reilly, JT, Martino, S Series Title Foundational Report Series: Advanced Distribution Management Systems for Grid Modernization Date Published 02/10/2016 Institution

  17. Integrated Energy Systems (IES) for Buildings: A Market Assessment...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Integrated Energy Systems (IES) combine on-site power or distributed generation ... functions using thermal energy normally wasted in the production of electricitypower. ...

  18. Steam distribution and energy delivery optimization using wireless sensors

    SciTech Connect (OSTI)

    Olama, Mohammed M; Allgood, Glenn O; Kuruganti, Phani Teja; Sukumar, Sreenivas R; Djouadi, Seddik M; Lake, Joe E

    2011-01-01

    The Extreme Measurement Communications Center at Oak Ridge National Laboratory (ORNL) explores the deployment of a wireless sensor system with a real-time measurement-based energy efficiency optimization framework in the ORNL campus. With particular focus on the 12-mile long steam distribution network in our campus, we propose an integrated system-level approach to optimize the energy delivery within the steam distribution system. We address the goal of achieving significant energy-saving in steam lines by monitoring and acting on leaking steam valves/traps. Our approach leverages an integrated wireless sensor and real-time monitoring capabilities. We make assessments on the real-time status of the distribution system by mounting acoustic sensors on the steam pipes/traps/valves and observe the state measurements of these sensors. Our assessments are based on analysis of the wireless sensor measurements. We describe Fourier-spectrum based algorithms that interpret acoustic vibration sensor data to characterize flows and classify the steam system status. We are able to present the sensor readings, steam flow, steam trap status and the assessed alerts as an interactive overlay within a web-based Google Earth geographic platform that enables decision makers to take remedial action. We believe our demonstration serves as an instantiation of a platform that extends implementation to include newer modalities to manage water flow, sewage and energy consumption.

  19. Battery management system with distributed wireless sensors

    DOE Patents [OSTI]

    Farmer, Joseph C.; Bandhauer, Todd M.

    2016-02-23

    A system for monitoring parameters of an energy storage system having a multiplicity of individual energy storage cells. A radio frequency identification and sensor unit is connected to each of the individual energy storage cells. The radio frequency identification and sensor unit operates to sense the parameter of each individual energy storage cell and provides radio frequency transmission of the parameters of each individual energy storage cell. A management system monitors the radio frequency transmissions from the radio frequency identification and sensor units for monitoring the parameters of the energy storage system.

  20. NREL: Energy Systems Integration - Events

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Events Through seminars, tours, and other educational opportunities, NREL hosts events that promote understanding and collaboration on energy systems integration. Energy Systems Integration Events See our full listing of upcoming energy systems integration events. Seminar Series Learn about energy systems integration in our seminar series archive. Printable Version Energy Systems Integration Home Capabilities Research & Development Facilities Working with Us Publications News Events Energy

  1. Dynamic voltage compensation on distribution feeders using flywheel energy storage

    SciTech Connect (OSTI)

    Weissbach, R.S.; Karady, G.G.; Farmer, R.G.

    1999-04-01

    Advancements in power electronics bearings and materials have made flywheel energy storage systems a viable alternative to electrochemical batteries. A future application of such a device is as an uninterruptible power supply for critical loads on a distribution feeder. However, the same power electronics and flywheel system could also be used for dynamic voltage compensation. A comparison is made between series and parallel connection of such dynamic compensation techniques used to maintain rated load voltage on distribution feeders when there are momentary dips in the supply voltage. For each case a mathematical model is presented and analyzed. The two cases are compared and the series compensation technique is more effective.

  2. Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling

    Broader source: Energy.gov [DOE]

    Develop distributed HVAC components to supplement the central HVAC system to reduce the energy required by current compressed gas air conditioners by at least one-third.

  3. Aperion Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    system controls, and fuel options with various stack technologies to supply optimized fuel cell systems. References: Aperion Energy Systems1 This article is a stub. You can...

  4. Orion Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Systems Jump to: navigation, search Name: Orion Energy Systems Place: Plymouth, Wisconsin Zip: 53073 Product: Designs and manufactures application specific lighting systems and...

  5. Energy Conservation Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Systems Inc Jump to: navigation, search Name: Energy Conservation Systems Inc Place: Prostpect, Kentucky Zip: 40059 Product: Smart solutionspower control system provider...

  6. DISTRIBUTED ENERGY PROJECTS SUPPLEMENTS TO RENEWABLE ENERGY AND EFFICIENCY ENERGY PROJECTS SOLICITATION

    Broader source: Energy.gov [DOE]

    LPO has released supplements to its existing Renewable Energy and Efficient Energy (REEE) Projects solicitations to provide guidance on the kinds of Distributed Energy Projects and project structures we can support under the Title XVII loan program.

  7. Lighting system with heat distribution face plate

    DOE Patents [OSTI]

    Arik, Mehmet; Weaver, Stanton Earl; Stecher, Thomas Elliot; Kuenzler, Glenn Howard; Wolfe, Jr., Charles Franklin; Li, Ri

    2013-09-10

    Lighting systems having a light source and a thermal management system are provided. The thermal management system includes synthetic jet devices, a heat sink and a heat distribution face plate. The synthetic jet devices are arranged in parallel to one and other and are configured to actively cool the lighting system. The heat distribution face plate is configured to radially transfer heat from the light source into the ambient air.

  8. Hybrid solar lighting distribution systems and components

    DOE Patents [OSTI]

    Muhs, Jeffrey D.; Earl, Dennis D.; Beshears, David L.; Maxey, Lonnie C.; Jordan, John K.; Lind, Randall F.

    2011-07-05

    A hybrid solar lighting distribution system and components having at least one hybrid solar concentrator, at least one fiber receiver, at least one hybrid luminaire, and a light distribution system operably connected to each hybrid solar concentrator and each hybrid luminaire. A controller operates all components.

  9. NREL: Energy Systems Integration - News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    News Stay up-to-date with the latest energy systems integration news from NREL with the following resources. Energy Systems Integration Newsletter Read a monthly recap of NREL's energy systems integration news and subscribe to our mailing list. NREL Energy Systems Integration News Stories See the most recent energy systems integration news and announcements from NREL. Energy Systems Integration Research Highlights Learn about NREL's latest research in energy systems integration. Printable

  10. Wood energy system design

    SciTech Connect (OSTI)

    Not Available

    1988-01-01

    This handbook, Wood Energy System Design, was prepared with the support of the Council of Great Lakes Governors and the US Department of Energy. It contains: wood fuel properties; procurement; receiving, handling, and storage; combustion; gasification; emission control; electric power generation and cogeneration; and case studies. (JF)

  11. Time-resolved ion energy distribution meas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    resolved ion energy distribution measurements using an advanced neutral particle analyzer on the MST reversed-field pinch S. Eilerman, J. K. Anderson, J. A. Reusch, D. Liu, G. Fiksel et al. Citation: Rev. Sci. Instrum. 83, 10D302 (2012); doi: 10.1063/1.4728312 View online: http://dx.doi.org/10.1063/1.4728312 View Table of Contents: http://rsi.aip.org/resource/1/RSINAK/v83/i10 Published by the American Institute of Physics. Related Articles Enhanced keV peak power and yield using twisted pair

  12. Distributed Energy Communications & Controls, Lab Activities - Synopsis

    SciTech Connect (OSTI)

    Rizy, D Tom

    2010-01-01

    Electric power distribution systems are experiencing outages due to a phenomenon known as fault induced delayed voltage recovery (FIDVR) due to air conditioning (A/C) compressor motor stall. Local voltage collapse from FIDVR is occurring in part because modern air-conditioner and heat pump compressor motors are much more susceptible to stalling during a voltage sag or dip than older motors. These motors can stall in less than three cycles (0.05 s) when a fault, for example, on the sub-transmission system, causes voltage on the distribution system to sag to 70% or less of nominal. We completed a new test system for A/C compressor motor stall testing at the DECC Lab. The A/C Stall test system is being used to characterize when and how compressor motors stall under low voltage and high compressor pressure conditions. However, instead of using air conditioners, we are using high efficiency heat pumps. We have gathered A/C stall characterization data for both sustained and momentary voltage sags of the test heat pump. At low enough voltage, the heat pump stalls (compressor motor stops and draws 5-6 times normal current in trying to restart) due to low inertia and low torque of the motor. For the momentary sag, we are using a fast acting contactor/switch to quickly switch from nominal to the sagged voltage in cycles.

  13. Annual Coal Distribution Report - Energy Information Administration

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    current Coal Distribution Report Annual Coal Distribution Report Release Date: April 8, 2016 | Next Release Date: December 2016 | full report Archive Domestic coal distribution by ...

  14. Hydrogen Pathway Cost Distributions | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Pathway Cost Distributions Hydrogen Pathway Cost Distributions Presentation on hydrogen pathway cost distributions presented January 25, 2006. PDF icon wkshpstorageuihlein.pdf...

  15. Distributed Power Inc | Open Energy Information

    Open Energy Info (EERE)

    Distributed Power Inc Place: Lime Rock, Connecticut Zip: 6039 Product: Focused on distributed generation power technology. References: Distributed Power Inc1 This article is a...

  16. Integrated Distribution Management System for Alabama Principal Investigator

    SciTech Connect (OSTI)

    Schatz, Joe

    2013-03-31

    Southern Company Services, under contract with the Department of Energy, along with Alabama Power, Alstom Grid (formerly AREVA T&D) and others moved the work product developed in the first phase of the Integrated Distribution Management System (IDMS) from Proof of Concept to true deployment through the activity described in this Final Report. This Project Integrated Distribution Management Systems in Alabama advanced earlier developed proof of concept activities into actual implementation and furthermore completed additional requirements to fully realize the benefits of an IDMS. These tasks include development and implementation of a Distribution System based Model that enables data access and enterprise application integration.

  17. SolidEnergy Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    SolidEnergy Systems National Clean Energy Business Plan Competition SolidEnergy Systems Massachusetts Institute of Technology The Polymer Ionic Liquid (PIL) lithium battery combines the safety and energy density of a solid polymer lithium battery and the high performance of a lithium-ion battery. The battery developed by SolidEnergy achieves high energy density that works safely over a wide temperature range, which makes it ideal for electric vehicles and consumer electronics where both energy

  18. Energy Systems Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Systems Integration Energy Systems Integration Presentation-given at at the Fall 2012 Federal Utility Partnership Working Group (FUPWG) meeting-covers the National Renewable Energy Laboratory's Energy Systems Integration Facility (ESIF) and its capabilities. PDF icon fupwg_fall12_kroposki_esif.pdf More Documents & Publications National Renewable Energy Laboratory's Energy Systems Integration Facility Overview Facilities and Infrastructure Program FY 2016 Budget At-A-Glance Facilities and

  19. Resource Energy Systems LLC | Open Energy Information

    Open Energy Info (EERE)

    provides property owners with turn-key solar energy services. RES completes all phases of solar design, installation, and completion. References: Resource Energy Systems, LLC1...

  20. Energy Systems Limited ESL | Open Energy Information

    Open Energy Info (EERE)

    Renewable Energy, Solar Product: ESL deals with design, supply, installations and maintenance of solar and other renewable energy systems in Uganda. The company has a special...

  1. Energy Systems Laboratory ESL | Open Energy Information

    Open Energy Info (EERE)

    ESL specializes in the research fields of metering, modeling and data analysis of energy use in buildings. References: Energy Systems Laboratory (ESL)1 This article is a...

  2. Facility Energy Decision System | Open Energy Information

    Open Energy Info (EERE)

    System (FEDS) AgencyCompany Organization: Federal Energy Management Program Sector: Energy Focus Area: Buildings Phase: Evaluate Effectiveness and Revise as Needed Topics:...

  3. Greentech Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Systems Place: Denmark Product: The company aims to develop, own or partly own energy plants, which produce electricity on the basis of sustainable energy forms. References:...

  4. Perpetual Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Perpetual Energy Systems Place: Woodland Hills, California Zip: 91367 Sector: Renewable Energy, Solar Product: String representation "Perpetual Energ ... sustainability." is too...

  5. Sustina Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Energy provides customers with a variety of renewable energy products. Their online store features the Evergreen 180 Watt Solar Module, and the AIR Breeze wind power system.2...

  6. Redhawk Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Redhawk Energy Systems Address: 10340 Palmer Rd. SW Place: Athens, Ohio Zip: 45701 Sector: Efficiency, Renewable Energy, Services, Solar,...

  7. Differences Between Distributed and Parallel Systems

    SciTech Connect (OSTI)

    Brightwell, R.; Maccabe, A.B.; Rissen, R.

    1998-10-01

    Distributed systems have been studied for twenty years and are now coming into wider use as fast networks and powerful workstations become more readily available. In many respects a massively parallel computer resembles a network of workstations and it is tempting to port a distributed operating system to such a machine. However, there are significant differences between these two environments and a parallel operating system is needed to get the best performance out of a massively parallel system. This report characterizes the differences between distributed systems, networks of workstations, and massively parallel systems and analyzes the impact of these differences on operating system design. In the second part of the report, we introduce Puma, an operating system specifically developed for massively parallel systems. We describe Puma portals, the basic building blocks for message passing paradigms implemented on top of Puma, and show how the differences observed in the first part of the report have influenced the design and implementation of Puma.

  8. ITP Industrial Distributed Energy: Combined Heat and Power: Effective...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ITP Industrial Distributed Energy: Combined Heat and Power: Effective Energy Solutions for a Sustainable Future Report describing the four key areas where CHP has proven its ...

  9. Improving Energy Efficiency by Developing Components for Distributed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Improving Energy Efficiency by Developing Components for ...

  10. Distributed Renewable Energy Finance and Policy Toolkit | Open...

    Open Energy Info (EERE)

    Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Distributed Renewable Energy Finance and Policy Toolkit AgencyCompany Organization: Clean Energy States Alliance...

  11. Understanding Fault Characteristics of Inverter-Based Distributed Energy Resources

    SciTech Connect (OSTI)

    Keller, J.; Kroposki, B.

    2010-01-01

    This report discusses issues and provides solutions for dealing with fault current contributions from inverter-based distributed energy resources.

  12. Distributed Wind Policy Comparison Tool Website | Open Energy...

    Open Energy Info (EERE)

    TOOL Name: Distributed Wind Policy Comparison Tool Website Focus Area: Renewable Energy Topics: Security & Reliability Website: www.eformativeoptions.comdwpolicytool...

  13. Distributed Energy Resources for Carbon Emissions Mitigation

    SciTech Connect (OSTI)

    Firestone, Ryan; Marnay, Chris

    2007-05-01

    The era of publicly mandated GHG emissions restrictions inthe United States has begun with recent legislation in California andseven northeastern states. Commercial and industrial buildings canimprove the carbon-efficiency of end-use energy consumption by installingtechnologies such as on-site cogeneration of electricity and useful heatin combined heat and power systems, thermally-activated cooling, solarelectric and thermal equipment, and energy storage -- collectively termeddistributed energy resources (DER). This research examines a collectionof buildings in California, the Northeast, and the southern United Statesto demonstrate the effects of regional characteristics such as the carbonintensity of central electricity grid, the climate-driven demand forspace heating and cooling, and the availability of solar insolation. Theresults illustrate that the magnitude of a realistic carbon tax ($100/tC)is too small to incent significant carbon-reducing effects oneconomically optimal DER adoption. In large part, this is because costreduction and carbon reduction objectives are roughly aligned, even inthe absence of a carbon tax.

  14. NREL: Energy Systems Integration Facility - Systems Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems Integration Systems integration considers the relationships among electricity, thermal, and fuel systems and data and information networks to ensure optimal interoperability across the energy spectrum. The Energy Systems Integration Facility's suite of systems integration laboratories provides advanced capabilities for research, development, and demonstration of key components of future energy systems. Photo of a man and a power quality meter system in a laboratory. The Energy Systems

  15. Estimating the Benefits and Costs of Distributed Energy Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Workshop - Agenda and Summary | Department of Energy Benefits and Costs of Distributed Energy Technologies Workshop - Agenda and Summary Estimating the Benefits and Costs of Distributed Energy Technologies Workshop - Agenda and Summary On September 30 and October 1, 2014, the Department of Energy hosted a 2-day workshop on "Estimating the Benefits and Costs of Distributed Energy Technologies." The purpose of the workshop was to foster discussion about the analytic challenges

  16. American Energy Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Systems Inc Jump to: navigation, search Name: American Energy Systems Inc Place: Minnesota Zip: 55350 Product: Biofuel burning appliance manufacturer (pellets & corn). References:...

  17. Optimal Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Energy Systems Place: Torrance, California Zip: 90505 Product: Manufacturer of flywheel power system, specialising in aerospace and defence sector. Coordinates: 40.417285,...

  18. Advanced Energy Systems Ltd | Open Energy Information

    Open Energy Info (EERE)

    Systems Ltd Place: Welshpool, Western Australia, Australia Zip: 6016 Sector: Solar, Wind energy Product: Manufacturer and distributor of micro wind turbines, solar systems, gas...

  19. Star Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Systems Jump to: navigation, search Name: Star Energy Systems Place: Ahmedabad, Gujarat, India Zip: 380 009 Sector: Solar Product: Solar PV product distributor. Coordinates:...

  20. Powersource Energy Systems Ltd | Open Energy Information

    Open Energy Info (EERE)

    Systems Ltd Jump to: navigation, search Name: Powersource Energy Systems Ltd Place: Canada Product: A spinoff from Soltek Powersource Ltd, since 1996, it merged back with them...

  1. Steam Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Steam Systems Steam Systems Many manufacturing facilities can recapture energy by installing more efficient steam equipment and processes and applying energy management practices. ...

  2. Chapter 3: Enabling Modernization of the Electric Power System Technology Assessment | Transmission and Distribution Components

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    3: Enabling Modernization of the Electric Power System Technology Assessments Cyber and Physical Security Designs, Architectures, and Concepts Electric Energy Storage Flexible and Distributed Energy Resources Measurements, Communications, and Controls Transmission and Distribution Components ENERGY U.S. DEPARTMENT OF Quadrennial Technology Review 2015 1 Quadrennial Technology Review 2015 Transmission and Distribution Components Chapter 3: Technology Assessments Introduction Today's electric

  3. Optimal Control of Distributed Energy Resources using Model Predictive Control

    SciTech Connect (OSTI)

    Mayhorn, Ebony T.; Kalsi, Karanjit; Elizondo, Marcelo A.; Zhang, Wei; Lu, Shuai; Samaan, Nader A.; Butler-Purry, Karen

    2012-07-22

    In an isolated power system (rural microgrid), Distributed Energy Resources (DERs) such as renewable energy resources (wind, solar), energy storage and demand response can be used to complement fossil fueled generators. The uncertainty and variability due to high penetration of wind makes reliable system operations and controls challenging. In this paper, an optimal control strategy is proposed to coordinate energy storage and diesel generators to maximize wind penetration while maintaining system economics and normal operation. The problem is formulated as a multi-objective optimization problem with the goals of minimizing fuel costs and changes in power output of diesel generators, minimizing costs associated with low battery life of energy storage and maintaining system frequency at the nominal operating value. Two control modes are considered for controlling the energy storage to compensate either net load variability or wind variability. Model predictive control (MPC) is used to solve the aforementioned problem and the performance is compared to an open-loop look-ahead dispatch problem. Simulation studies using high and low wind profiles, as well as, different MPC prediction horizons demonstrate the efficacy of the closed-loop MPC in compensating for uncertainties in wind and demand.

  4. Development of a High-Speed Static Switch for Distributed Energy and Microgrid Applications

    SciTech Connect (OSTI)

    Kroposki, B.; Pink, C.; Lynch, J.; John, V.; Meor Daniel, S.; Benedict, E.; Vihinen, I.

    2007-01-01

    Distributed energy resources can provide power to local loads in the electric distribution system and benefits such as improved reliability. Microgrids are intentional islands formed at a facility or in an electrical distribution system that contains at least one distributed resource and associated loads. Microgrids that operate both electrical generation and loads in a coordinated manner can offer additional benefits to the customer and local utility. The loads and energy sources can be disconnected from and reconnected to the area or local utility with minimal disruption to the local loads, thereby improving reliability. This paper details the development and testing of a highspeed static switch for distributed energy and microgrid applications.

  5. Fan Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technical Assistance » Fan Systems Fan Systems Dramatic energy and cost savings can be achieved in motor systems by applying best energy management practices and purchasing energy-efficiency equipment. Use the software tools, training, and publications listed below to save energy in fan systems. Fan Tools Tools to Assess Your Energy System Fan System Assessment Tool (FSAT) Qualified Specialists Qualified Specialists have passed a rigorous competency examination on a specific industrial system

  6. IPCC Data Distribution Centre | Open Energy Information

    Open Energy Info (EERE)

    Data Distribution Centre Jump to: navigation, search Tool Summary LAUNCH TOOL Name: IPCC Data Distribution Centre AgencyCompany Organization: World Meteorological Organization,...

  7. Other Distributed Generation Technologies | Open Energy Information

    Open Energy Info (EERE)

    Other Distributed Generation Technologies Jump to: navigation, search TODO: Add description List of Other Distributed Generation Technologies Incentives Retrieved from "http:...

  8. PIA - Fossil Energy Web System (FEWEB) | Department of Energy

    Energy Savers [EERE]

    Fossil Energy Web System (FEWEB) PIA - Fossil Energy Web System (FEWEB) PIA - Fossil Energy Web System (FEWEB) PDF icon PIA - Fossil Energy Web System (FEWEB) More Documents &...

  9. Confined energy distribution for charged particle beams

    DOE Patents [OSTI]

    Jason, Andrew J.; Blind, Barbara

    1990-01-01

    A charged particle beam is formed to a relatively larger area beam which is well-contained and has a beam area which relatively uniformly deposits energy over a beam target. Linear optics receive an accelerator beam and output a first beam with a first waist defined by a relatively small size in a first dimension normal to a second dimension. Nonlinear optics, such as an octupole magnet, are located about the first waist and output a second beam having a phase-space distribution which folds the beam edges along the second dimension toward the beam core to develop a well-contained beam and a relatively uniform particle intensity across the beam core. The beam may then be expanded along the second dimension to form the uniform ribbon beam at a selected distance from the nonlinear optics. Alternately, the beam may be passed through a second set of nonlinear optics to fold the beam edges in the first dimension. The beam may then be uniformly expanded along the first and second dimensions to form a well-contained, two-dimensional beam for illuminating a two-dimensional target with a relatively uniform energy deposition.

  10. Renewable Energy: Distributed Generation Policies and Programs | Department

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of Energy Distributed Generation Policies and Programs Renewable Energy: Distributed Generation Policies and Programs Distributed generation is the term used when electricity is generated from sources, often renewable energy sources, near the point of use instead of centralized generation sources from power plants. State and local governments can implement policies and programs regarding distributed generation and its use to help overcome market and regulatory barriers to implementation.

  11. Solar energy grid integration systems - Energy storage (SEGIS-ES)

    SciTech Connect (OSTI)

    Ton, Dan; Peek, Georgianne H.; Hanley, Charles; Boyes, John

    2008-05-01

    In late 2007, the U.S. Department of Energy (DOE) initiated a series of studies to address issues related to potential high penetration of distributed photovoltaic (PV) generation systems on our nation’s electric grid. This Renewable Systems Interconnection (RSI) initiative resulted in the publication of 14 reports and an Executive Summary that defined needs in areas related to utility planning tools and business models, new grid architectures and PV systems configurations, and models to assess market penetration and the effects of high-penetration PV systems. As a result of this effort, the Solar Energy Grid Integration Systems (SEGIS) program was initiated in early 2008. SEGIS is an industry-led effort to develop new PV inverters, controllers, and energy management systems that will greatly enhance the utility of distributed PV systems.

  12. Workshop Summary Report: R&D for Dispatchable Distributed Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... Global Distributed Generation Deployment Forecast, December 2014. Distributed generation ... system operator's ability to accurately forecast load, a situation that could become ...

  13. Property:Distributed Generation Prime Mover | Open Energy Information

    Open Energy Info (EERE)

    G3508 + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Caterpillar G379 + Distributed Generation StudySUNY Buffalo + Capstone C60 +...

  14. Sandia Energy Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    feed 0 Bay-Area National Labs Team to Tackle Long-Standing Automotive Hydrogen-Storage Challenge http:energy.sandia.govbay-area-national-labs-team-to-tackle-long-stan...

  15. Integration of distributed energy resources. The CERTS Microgrid Concept

    SciTech Connect (OSTI)

    Lasseter, Robert; Akhil, Abbas; Marnay, Chris; Stephens, John; Dagle, Jeff; Guttromsom, Ross; Meliopoulous, A. Sakis; Yinger, Robert; Eto, Joe

    2002-04-01

    Evolutionary changes in the regulatory and operational climate of traditional electric utilities and the emergence of smaller generating systems such as microturbines have opened new opportunities for on-site power generation by electricity users. In this context, distributed energy resources (DER)--small power generators typically located at users' sites where the energy (both electric and thermal) they generate is used--have emerged as a promising option to meet growing customer needs for electric power with an emphasis on reliability and power quality. The portfolio of DER includes generators, energy storage, load control, and, for certain classes of systems, advanced power electronic interfaces between the generators and the bulk power provider. This white paper proposes that the significant potential of smaller DER to meet customers' and utilities' needs can be best captured by organizing these resources into MicroGrids.

  16. Commercial thermal distribution systems, Final report for CIEE/CEC

    SciTech Connect (OSTI)

    Xu, Tengfang; Bechu, Olivier; Carrie, Remi; Dickerhoff, Darryl; Fisk, William; Franconi, Ellen; Kristiansen, Oyvind; Levinson, Ronnen; McWilliams, Jennifer; Wang, Duo; Modera, Mark; Webster, Tom; Ring, Erik; Zhang, Qiang; Huizenga, Charlie; Bauman, Fred; Arens, Ed

    1999-12-01

    According to the California Energy Commission (CEC 1998a), California commercial buildings account for 35% of statewide electricity consumption, and 16% of statewide gas consumption. Space conditioning accounts for roughly 16,000 GWh of electricity and 800 million therms of natural gas annually, and the vast majority of this space conditioning energy passes through thermal distribution systems in these buildings. In addition, 8600 GWh per year is consumed by fans and pumps in commercial buildings, most of which is used to move the thermal energy through these systems. Research work at Lawrence Berkeley National Laboratory (LBNL) has been ongoing over the past five years to investigate the energy efficiency of these thermal distribution systems, and to explore possibilities for improving that energy efficiency. Based upon that work, annual savings estimates of 1 kWh/ft{sup 2} for light commercial buildings, and 1-2 kWh/ft{sup 2} in large commercial buildings have been developed for the particular aspects of thermal distribution system performance being addressed by this project. Those savings estimates, combined with a distribution of the building stock based upon an extensive stock characterization study (Modera et al. 1999a), and technical penetration estimates, translate into statewide saving potentials of 2000 GWh/year and 75 million thermal/year, as well as an electricity peak reduction potential of 0.7 GW. The overall goal of this research program is to provide new technology and application knowledge that will allow the design, construction, and energy services industries to reduce the energy waste associated with thermal distribution systems in California commercial buildings. The specific goals of the LBNL efforts over the past year were: (1) to advance the state of knowledge about system performance and energy losses in commercial-building thermal distribution systems; (2) to evaluate the potential of reducing thermal losses through duct sealing, duct insulation, and improved equipment sizing; and (3) to develop and evaluate innovative techniques applicable to large buildings for sealing ducts and encapsulating internal duct insulation. In the UCB fan project, the goals were: (1) to develop a protocol for testing, analyzing and diagnosing problems in large commercial building built-up air handling systems, and (2) to develop low-cost measurement techniques to improve short term monitoring practices. To meet our stated goals and objectives, this project: (1) continued to investigate and characterize the performance of thermal distribution systems in commercial buildings; (2) performed energy analyses and evaluation for duct-performance improvements for both small and large commercial buildings; (3) developed aerosol injection technologies for both duct sealing and liner encapsulation in commercial buildings; and (4) designed energy-related diagnostic protocols based on short term measurement and used a benchmarking database to compare subject systems with other measured systems for certain performance metrics. This year's efforts consisted of the following distinct tasks: performing characterization measurements for five light commercial building systems and five large-commercial-building systems; analyzing the potential for including duct performance in California's Energy Efficiency Standards for Residential and Non-Residential Buildings (Title 24), including performing energy and equipment sizing analyses of air distribution systems using DOE 2.1E for non-residential buildings; conducting laboratory experiments, field experiments, and modeling of new aerosol injection technologies concepts for sealing and coating, including field testing aerosol-based sealing in two large commercial buildings; improving low-cost fan monitoring techniques measurements, and disseminating fan tools by working with energy practitioners directly where possible and publishing the results of this research and the tools developed on a web-site. The final report consists of five sections listed below. Each section includes its related background information, the research methods employed, new measurement techniques developed, the results, and discussion.

  17. Adaptive, full-spectrum solar energy system

    DOE Patents [OSTI]

    Muhs, Jeffrey D.; Earl, Dennis D.

    2003-08-05

    An adaptive full spectrum solar energy system having at least one hybrid solar concentrator, at least one hybrid luminaire, at least one hybrid photobioreactor, and a light distribution system operably connected to each hybrid solar concentrator, each hybrid luminaire, and each hybrid photobioreactor. A lighting control system operates each component.

  18. EPRI-Sandia PV Systems Symposium - PV Distribution Systems Modeling Workshop Agenda (draft)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    EPRI-Sandia PV Systems Symposium - PV Distribution Systems Modeling Workshop Agenda (draft) PV Distribution System Modeling Workshop - Draft Agenda as of May 1 This one-day workshop, hosted by Sandia National Laboratories, the Electric Power Research Institute (EPRI), and the National Renewable Energy Laboratory, will cover best practices to facilitate integration of PV into the power system. Topics will include technical and policy updates for current interconnection and screening practices and

  19. Energy storage connection system

    DOE Patents [OSTI]

    Benedict, Eric L.; Borland, Nicholas P.; Dale, Magdelena; Freeman, Belvin; Kite, Kim A.; Petter, Jeffrey K.; Taylor, Brendan F.

    2012-07-03

    A power system for connecting a variable voltage power source, such as a power controller, with a plurality of energy storage devices, at least two of which have a different initial voltage than the output voltage of the variable voltage power source. The power system includes a controller that increases the output voltage of the variable voltage power source. When such output voltage is substantially equal to the initial voltage of a first one of the energy storage devices, the controller sends a signal that causes a switch to connect the variable voltage power source with the first one of the energy storage devices. The controller then causes the output voltage of the variable voltage power source to continue increasing. When the output voltage is substantially equal to the initial voltage of a second one of the energy storage devices, the controller sends a signal that causes a switch to connect the variable voltage power source with the second one of the energy storage devices.

  20. Real-time distributed multimedia systems

    SciTech Connect (OSTI)

    Rahurkar, S.S.; Bourbakis, N.G.

    1996-12-31

    This paper presents a survey on distributed multimedia systems and discusses real-time issues. In particular, different subsystems are reviewed that impact on multimedia networking, the networking for multimedia, the networked multimedia systems, and the leading edge research and developments efforts and issues in networking.

  1. Solar energy collection system

    SciTech Connect (OSTI)

    Hummel, R.L.

    1982-04-06

    A solar energy collection system for a building is described. A solar energy collector is disposed at the exterior surface of the building and includes a solar energy absorbent body having a surface which is exposed to sunlight and from which solar energy can be transmitted as sensible heat. A panel which is transparent to sunlight is spaced from the said surface of the absorbent body so as to define therewith a passageway in which air contacts at least a substantial area of said surface so that air in said passageway absorbs heat transmitted from said surface when the collector is in use. The passageway has an inlet and an outlet and the absorbent body and panel are arranged with the outlet higher than the inlet so that heated air in the passageway tends to rise by convection towards the outlet. The building is provided with heating means including a circulation circuit for a heating fluid. Heat exchange means are coupled to said air passageway outlet of the solar energy collector for passage of heated air therethrough. The heat exchange means are also coupled to the circulation circuit of the building heating means and are arranged to permit heat transfer between said heated air and the heating fluid. A return air flow conduit is coupled between the heat exchange means and the inlet of the air passageway of the solar energy collector for returning heated air from the heat exchange means to the air passageway for recirculation.

  2. NREL: Energy Analysis - Electric Infrastructure Systems Technology Analysis

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Electric Infrastructure Systems Technology Analysis NREL's energy analysis supports distribution and interconnection R&D, which is responsible for distributed resources' system integration. Industrial Distributed Energy Information Resources This link takes you to a directory of white papers and general documents and publications produced by or in conjunction with the EERE Advanced Manufacturing Office's Industrial Distributed Energy activities. Program-specific publications Among these

  3. Fault Detection and Isolation in Low-Voltage DC Distribution System -

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Innovation Portal Electricity Transmission Electricity Transmission Building Energy Efficiency Building Energy Efficiency Find More Like This Return to Search Fault Detection and Isolation in Low-Voltage DC Distribution System University of Colorado Contact CU About This Technology Publications: PDF Document Publication CU2941D-3222D (DC Microgrid) Marketing Summary.pdf (172 KB) Conceptual diagram of a DC distribution system Conceptual diagram of a DC distribution system Technology

  4. Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices

    DOE Patents [OSTI]

    Chassin, David P.; Donnelly, Matthew K.; Dagle, Jeffery E.

    2006-12-12

    Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices are described. In one aspect, an electrical power distribution control method includes providing electrical energy from an electrical power distribution system, applying the electrical energy to a load, providing a plurality of different values for a threshold at a plurality of moments in time and corresponding to an electrical characteristic of the electrical energy, and adjusting an amount of the electrical energy applied to the load responsive to an electrical characteristic of the electrical energy triggering one of the values of the threshold at the respective moment in time.

  5. Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices

    DOE Patents [OSTI]

    Chassin, David P.; Donnelly, Matthew K.; Dagle, Jeffery E.

    2011-12-06

    Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices are described. In one aspect, an electrical power distribution control method includes providing electrical energy from an electrical power distribution system, applying the electrical energy to a load, providing a plurality of different values for a threshold at a plurality of moments in time and corresponding to an electrical characteristic of the electrical energy, and adjusting an amount of the electrical energy applied to the load responsive to an electrical characteristic of the electrical energy triggering one of the values of the threshold at the respective moment in time.

  6. Feasibility Study: Ductless Hydronic Distribution Systems with Fan Coil Delivery

    SciTech Connect (OSTI)

    Springer, D.; Dakin, B.; Backman, C.

    2012-07-01

    The primary objectives of this study are to estimate potential energy savings relative to conventional ducted air distribution, and to identify equipment requirements, costs, and barriers with a focus on ductless hydronic delivery systems that utilize water-to-air terminal units in each zone. Results indicate that annual heating and cooling energy use can be reduced by up to 27% assuming replacement of the conventional 13 SEER heat pump and coil with a similarly rated air-to-water heat pump.

  7. Motor Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technical Assistance » Motor Systems Motor Systems Dramatic energy and cost savings can be achieved in motor systems by applying best energy management practices and purchasing energy-efficiency equipment. Use the software tools, training, and publications listed below to save energy in motors. Motors Tools Tools to assess your energy system: MotorMaster+ MotorMaster+ International Motors Case Studies Improving Efficiency of Tube Drawing Bench Motor System Upgrades Smooth the Way to Savings of

  8. Electrical appliance energy consumption control methods and electrical energy consumption systems

    DOE Patents [OSTI]

    Donnelly, Matthew K.; Chassin, David P.; Dagle, Jeffery E.; Kintner-Meyer, Michael; Winiarski, David W.; Pratt, Robert G.; Boberly-Bartis, Anne Marie

    2006-03-07

    Electrical appliance energy consumption control methods and electrical energy consumption systems are described. In one aspect, an electrical appliance energy consumption control method includes providing an electrical appliance coupled with a power distribution system, receiving electrical energy within the appliance from the power distribution system, consuming the received electrical energy using a plurality of loads of the appliance, monitoring electrical energy of the power distribution system, and adjusting an amount of consumption of the received electrical energy via one of the loads of the appliance from an initial level of consumption to an other level of consumption different than the initial level of consumption responsive to the monitoring.

  9. Electrical appliance energy consumption control methods and electrical energy consumption systems

    DOE Patents [OSTI]

    Donnelly, Matthew K.; Chassin, David P.; Dagle, Jeffery E.; Kintner-Meyer, Michael; Winiarski, David W.; Pratt, Robert G.; Boberly-Bartis, Anne Marie

    2008-09-02

    Electrical appliance energy consumption control methods and electrical energy consumption systems are described. In one aspect, an electrical appliance energy consumption control method includes providing an electrical appliance coupled with a power distribution system, receiving electrical energy within the appliance from the power distribution system, consuming the received electrical energy using a plurality of loads of the appliance, monitoring electrical energy of the power distribution system, and adjusting an amount of consumption of the received electrical energy via one of the loads of the appliance from an initial level of consumption to an other level of consumption different than the initial level of consumption responsive to the monitoring.

  10. Wind energy conversion system

    DOE Patents [OSTI]

    Longrigg, Paul

    1987-01-01

    The wind energy conversion system includes a wind machine having a propeller connected to a generator of electric power, the propeller rotating the generator in response to force of an incident wind. The generator converts the power of the wind to electric power for use by an electric load. Circuitry for varying the duty factor of the generator output power is connected between the generator and the load to thereby alter a loading of the generator and the propeller by the electric load. Wind speed is sensed electro-optically to provide data of wind speed upwind of the propeller, to thereby permit tip speed ratio circuitry to operate the power control circuitry and thereby optimize the tip speed ratio by varying the loading of the propeller. Accordingly, the efficiency of the wind energy conversion system is maximized.

  11. Aerogel-Based Insulation for Industrial Steam Distribution Systems

    SciTech Connect (OSTI)

    John Williams

    2011-03-30

    Thermal losses in industrial steam distribution systems account for 977 trillion Btu/year in the US, more than 1% of total domestic energy consumption. Aspen Aerogels worked with Department of Energys Industrial Technologies Program to specify, develop, scale-up, demonstrate, and deliver Pyrogel XT, an aerogel-based pipe insulation, to market to reduce energy losses in industrial steam systems. The product developed has become Aspens best selling flexible aerogel blanket insulation and has led to over 60 new jobs. Additionally, this product has delivered more than ~0.7 TBTU of domestic energy savings to date, and could produce annual energy savings of 149 TBTU by 2030. Pyrogel XTs commercial success has been driven by its 2-4X better thermal performance, improved durability, greater resistance to corrosion under insulation (CUI), and faster installation times than incumbent insulation materials.

  12. Distributed Generation Study/Tudor Gardens | Open Energy Information

    Open Energy Info (EERE)

    Combustion Engine Prime Mover Tecogen CM-75 Heat Recovery Systems Built-in Fuel Natural Gas System Installer Aegis Energy System Enclosure Indoor System Application Combined...

  13. Distributed Generation Study/Waldbaums Supermarket | Open Energy...

    Open Energy Info (EERE)

    Technology Microturbine Prime Mover Capstone C60 Heat Recovery Systems Unifin HX Fuel Natural Gas System Installer CDH Energy Corp. System Enclosure Outdoor System Application...

  14. Distributed Generation Study/Arrow Linen | Open Energy Information

    Open Energy Info (EERE)

    Prime Mover Coast Intelligen 150-IC with ECS Heat Recovery Systems Built-in Fuel Natural Gas System Installer Energy Concepts System Enclosure Outdoor System Application...

  15. Sandia Energy - PV Systems Reliability

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems Reliability Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics PV Systems Reliability PV Systems ReliabilityCoryne Tasca2015-05-08T03:40:54+00:00...

  16. Energy Signal Tool for Decision Support in Building Energy Systems

    SciTech Connect (OSTI)

    Henze, G. P.; Pavlak, G. S.; Florita, A. R.; Dodier, R. H.; Hirsch, A. I.

    2014-12-01

    A prototype energy signal tool is demonstrated for operational whole-building and system-level energy use evaluation. The purpose of the tool is to give a summary of building energy use which allows a building operator to quickly distinguish normal and abnormal energy use. Toward that end, energy use status is displayed as a traffic light, which is a visual metaphor for energy use that is either substantially different from expected (red and yellow lights) or approximately the same as expected (green light). Which light to display for a given energy end use is determined by comparing expected to actual energy use. As expected, energy use is necessarily uncertain; we cannot choose the appropriate light with certainty. Instead, the energy signal tool chooses the light by minimizing the expected cost of displaying the wrong light. The expected energy use is represented by a probability distribution. Energy use is modeled by a low-order lumped parameter model. Uncertainty in energy use is quantified by a Monte Carlo exploration of the influence of model parameters on energy use. Distributions over model parameters are updated over time via Bayes' theorem. The simulation study was devised to assess whole-building energy signal accuracy in the presence of uncertainty and faults at the submetered level, which may lead to tradeoffs at the whole-building level that are not detectable without submetering.

  17. Property:Distributed Generation System Power Application | Open...

    Open Energy Info (EERE)

    + Based Load + Distributed Generation StudyPatterson Farms CHP System Using Renewable Biogas + Based Load + Distributed Generation StudySUNY Buffalo + Based Load + Distributed...

  18. Energy Systems | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Systems Research to strengthen the economy, protect the environment and enable energy independence and national security The Energy Systems (ES) division conducts applied energy research to strengthen the economy, protect the environment and enable energy independence and national security. From invention through demonstration, ES actively forms critical alliances with industrial partners, universities, other national laboratories and other Argonne divisions to conduct research,

  19. Energy Systems Integration Facility Overview

    SciTech Connect (OSTI)

    Arvizu, Dan; Chistensen, Dana; Hannegan, Bryan; Garret, Bobi; Kroposki, Ben; Symko-Davies, Martha; Post, David; Hammond, Steve; Kutscher, Chuck; Wipke, Keith

    2014-02-28

    The U.S. Department of Energy's Energy Systems Integration Facility (ESIF) is located at the National Renewable Energy Laboratory is the right tool, at the right time... a first-of-its-kind facility that addresses the challenges of large-scale integration of clean energy technologies into the energy systems that power the nation.

  20. Energy Systems Integration Facility Overview

    ScienceCinema (OSTI)

    Arvizu, Dan; Chistensen, Dana; Hannegan, Bryan; Garret, Bobi; Kroposki, Ben; Symko-Davies, Martha; Post, David; Hammond, Steve; Kutscher, Chuck; Wipke, Keith

    2014-06-10

    The U.S. Department of Energy's Energy Systems Integration Facility (ESIF) is located at the National Renewable Energy Laboratory is the right tool, at the right time... a first-of-its-kind facility that addresses the challenges of large-scale integration of clean energy technologies into the energy systems that power the nation.

  1. Gas-Fired Distributed Energy Resource Technology Characterizations

    SciTech Connect (OSTI)

    Goldstein, L.; Hedman, B.; Knowles, D.; Freedman, S. I.; Woods, R.; Schweizer, T.

    2003-11-01

    The U. S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) is directing substantial programs in the development and encouragement of new energy technologies. Among them are renewable energy and distributed energy resource technologies. As part of its ongoing effort to document the status and potential of these technologies, DOE EERE directed the National Renewable Energy Laboratory to lead an effort to develop and publish Distributed Energy Technology Characterizations (TCs) that would provide both the department and energy community with a consistent and objective set of cost and performance data in prospective electric-power generation applications in the United States. Toward that goal, DOE/EERE - joined by the Electric Power Research Institute (EPRI) - published the Renewable Energy Technology Characterizations in December 1997.As a follow-up, DOE EERE - joined by the Gas Research Institute - is now publishing this document, Gas-Fired Distributed Energy Resource Technology Characterizations.

  2. Performance Monitoring of Residential Hot Water Distribution Systems

    SciTech Connect (OSTI)

    Liao, Anna; Lanzisera, Steven; Lutz, Jim; Fitting, Christian; Kloss, Margarita; Stiles, Christopher

    2014-08-11

    Current water distribution systems are designed such that users need to run the water for some time to achieve the desired temperature, wasting energy and water in the process. We developed a wireless sensor network for large-scale, long time-series monitoring of residential water end use. Our system consists of flow meters connected to wireless motes transmitting data to a central manager mote, which in turn posts data to our server via the internet. This project also demonstrates a reliable and flexible data collection system that could be configured for various other forms of end use metering in buildings. The purpose of this study was to determine water and energy use and waste in hot water distribution systems in California residences. We installed meters at every end use point and the water heater in 20 homes and collected 1s flow and temperature data over an 8 month period. For a typical shower and dishwasher events, approximately half the energy is wasted. This relatively low efficiency highlights the importance of further examining the energy and water waste in hot water distribution systems.

  3. Arnold Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Arnold Energy Systems Region: United States Sector: Marine and Hydrokinetic Website: http: This company is listed in the Marine and Hydrokinetic...

  4. Integrated Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Integrated Energy Systems Address: 747 N Main Street Place: Orange, California Zip: 92868 Region: Southern CA Area Sector: Solar Product: EPC Year Founded: 1985 Phone Number:...

  5. ReEnergie Systems | Open Energy Information

    Open Energy Info (EERE)

    Systems Place: Behringersdorf, Germany Zip: D-90571 Sector: Biomass, Hydro, Solar, Wind energy Product: Distributor and marketer of equipment using solar, wind, biomass and...

  6. Energy Systems Network ESN | Open Energy Information

    Open Energy Info (EERE)

    associations and breakthroughs in cleantech which help promote growth in the local economy. References: Energy Systems Network (ESN)1 This article is a stub. You can help...

  7. Clean Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Zip: 95742 Product: The company has developed oxyfuel technology for zero emission fossil fuel power plants. References: Clean Energy Systems1 This article is a stub. You can...

  8. Perpetual Energy Systems Ltd | Open Energy Information

    Open Energy Info (EERE)

    search Name: Perpetual Energy Systems Ltd. Place: Hyderabad, Andhra Pradesh, India Zip: 500 029 Sector: Biomass Product: Biomass project developer in India Coordinates:...

  9. Energy Management Systems: Maximizing Energy Savings

    Broader source: Energy.gov [DOE]

    This webinar covered how to optimize installations of new energy management systems, review EMS strategies following lighting/HVAC retrofit projects, and utilize excess EECBG funding.

  10. Nextronex Energy Systems LLC | Open Energy Information

    Open Energy Info (EERE)

    Systems LLC Address: 4400 Moline Martin Rd Place: Millbury, Ohio Zip: 43447-9401 Sector: Efficiency, Renewable Energy, Services, Solar Website: www.nextronex.comdefault.asp...

  11. Energy Delivery Systems Cybersecurity | Department of Energy

    Energy Savers [EERE]

    the country. CEDS program activities fall under five project areas, guided by the Roadmap to Achieve Energy Delivery Systems Cybersecurity. They are: Build a Culture of...

  12. Proton Energy Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Proton Energy Systems Inc Place: Wallingford, Connecticut Zip: 6492 Sector: Hydro, Hydrogen Product: Develops, manufactures and sells proprietary Proton Exchange Membrane (PEM)...

  13. Virent Energy Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Energy Systems Inc Place: Madison, Wisconsin Zip: 53704 Sector: Biomass, Hydro, Hydrogen Product: A start-up focused on the development and commercialization of a new process...

  14. Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    3 - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  15. Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4 - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  16. Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    5 - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  17. Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

  18. Distributed Object Oriented Geographic Information System

    Energy Science and Technology Software Center (OSTI)

    1997-02-01

    This interactive, object-oriented, distributed Geographic Information System (GIS) uses the World Wibe Web (WWW) as application medium and distribution mechanism. The software provides distributed access to multiple geo-spatial databases and presents them as if they came from a single coherent database. DOOGIS distributed access comes not only in the form of multiple geo-spatial servers but can break down a single logical server into the constituent physical servers actually storing the data. The program provides formore » dynamic protocol resolution and content handling allowing unknown objects from a particular server to download their handling code. Security and access privileges are negotiated dynamically with each server contacted and each access attempt.« less

  19. Flexible Distributed Energy and Water from Waste for the Food...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    a systematic plant-wide automation for online monitoring and supervisory control. ... More Documents & Publications 2011 CHPIndustrial Distributed Energy R&D Portfolio Review ...

  20. QER Report: Energy Transmission, Storage, and Distribution Infrastruct...

    Broader source: Energy.gov (indexed) [DOE]

    NG-1 Chapter VII Appendix B NATURAL GAS NG-2 QER Report: Energy Transmission, Storage, and Distribution Infrastructure | April 2015 Appendix B: NATURAL GAS Highlights Increasing...

  1. QER Report: Energy Transmission, Storage, and Distribution Infrastruct...

    Broader source: Energy.gov (indexed) [DOE]

    LF-1 Chapter VII Appendix A LIQUID FUELS LF-2 QER Report: Energy Transmission, Storage, and Distribution Infrastructure | April 2015 Appendix A: LIQUID FUELS Introduction The...

  2. Deployment Barriers to Distributed Wind Energy. Workshop Report

    SciTech Connect (OSTI)

    Ahlgrimm, Jim; Hartman, Liz; Barker, Bret; Fry, Chris; Meissner, John; Forsyth, Trudy; Baring-Gould, Ian; Newcomb, Charles

    2010-10-28

    This report presents key findings from the Department of Energy's Deployment Barriers to Distributed Wind Technology Workshop, held October 28, 2010 in Denver, Colorado.

  3. Estimating the Benefits and Costs of Distributed Energy Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Lab (NREL) Avoided Transmission & Distribution: Steven Fine, ICF International Social Costs & Benefits: Anne Hoskins, Maryland Public Service Commission PDF icon ...

  4. Estimating the Benefits and Costs of Distributed Energy Technologies...

    Broader source: Energy.gov (indexed) [DOE]

    PDF icon Presentation - Robert Jeffers, Sandia PDF icon Presentation - Carl Imhoff, PNNL More Documents & Publications Estimating the Benefits and Costs of Distributed Energy ...

  5. DISTRIBUTED ENERGY PROJECTS SUPPLEMENT TO ADVANCED FOSSIL LOAN...

    Office of Environmental Management (EM)

    SUPPLEMENT TO ADVANCED FOSSIL LOAN GUARANTEE ANNOUNCEMENT DISTRIBUTED ENERGY PROJECTS SUPPLEMENT TO ADVANCED FOSSIL LOAN GUARANTEE ANNOUNCEMENT LPO has released a supplement to its ...

  6. Improving Energy Efficiency by Developing Components for Distributed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling 2009 DOE Hydrogen Program and Vehicle Technologies ...

  7. Improving Energy Efficiency by Developing Components for Distributed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Thermoelectric (TE) HVAC 2011 DOE Hydrogen and Fuel ...

  8. Improving Energy Efficiency by Developing Components for Distributed...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Thermoelectric (TE) HVAC Discusses results from TE ...

  9. U.S. Energy Information Administration | Annual Coal Distribution...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Form EIA-7A, "Coal Production and Preparation Report." 2 U.S. Energy Information Administration | Annual Coal Distribution Report 2013 Alaska ...

  10. Deployment Barriers to Distributed Wind Energy: Workshop Report...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    This report presents key findings from the Department of Energy's Deployment Barriers to Distributed Wind Technology Workshop, held October 28, 2010 in Denver, Colorado. PDF icon ...

  11. Azimuthal anisotropy distributions in high-energy collisions...

    Office of Scientific and Technical Information (OSTI)

    Search Title: Azimuthal anisotropy distributions in high-energy collisions Elliptic flow in ultrarelativistic heavy-ion collisions results from the hydrodynamic response to the...

  12. Energy conversion system

    DOE Patents [OSTI]

    Murphy, Lawrence M.

    1987-01-01

    The energy conversion system includes a photo-voltaic array for receiving solar radiation and converting such radiation to electrical energy. The photo-voltaic array is mounted on a stretched membrane that is held by a frame. Tracking means for orienting the photo-voltaic array in predetermined positions that provide optimal exposure to solar radiation cooperate with the frame. An enclosure formed of a radiation transmissible material includes an inside containment space that accommodates the photo-voltaic array on the stretched membrane, the frame and the tracking means, and forms a protective shield for all such components. The enclosure is preferably formed of a flexible inflatable material and maintains its preferred form, such as a dome, under the influence of a low air pressure furnished to the dome. Under this arrangement the energy conversion system is streamlined for minimizing wind resistance, sufficiently weatherproof for providing protection against weather hazards such as hail, capable of using diffused light, lightweight for low-cost construction, and operational with a minimal power draw.

  13. Energy conversion system

    DOE Patents [OSTI]

    Murphy, L.M.

    1985-09-16

    The energy conversion system includes a photo-voltaic array for receiving solar radiation and converting such radiation to electrical energy. The photo-voltaic array is mounted on a stretched membrane that is held by a frame. Tracking means for orienting the photo-voltaic array in predetermined positions that provide optimal exposure to solar radiation cooperate with the frame. An enclosure formed of a radiation transmissible material includes an inside containment space that accommodates the photo-voltaic array on the stretched membrane, the frame and the tracking means, and forms a protective shield for all such components. The enclosure is preferably formed of a flexible inflatable material and maintains its preferred form, such as a dome, under the influence of a low air pressure furnished to the dome. Under this arrangement the energy conversion system is streamlined for minimizing wind resistance, sufficiently weathproof for providing protection against weather hazards such as hail, capable of using diffused light, lightweight for low-cost construction and operational with a minimal power draw.

  14. DistributionDrive | Open Energy Information

    Open Energy Info (EERE)

    search Name: DistributionDrive Place: Addison, Texas Zip: 75001 Product: Supplier of Biodiesel, Straight Vegetable Oil (SVO), Recycled Vegetable Oil (WVO) and Engine Conversion...

  15. Nord Distribution Solaire | Open Energy Information

    Open Energy Info (EERE)

    Solaire Jump to: navigation, search Name: Nord Distribution Solaire Place: Roubaix, France Zip: 59100 Sector: Solar Product: An installation company for solar passive and PV...

  16. Advanced Distributed Generation LLC | Open Energy Information

    Open Energy Info (EERE)

    Ohio Zip: 43607 Sector: Solar Product: Agriculture; Consulting; Installation; Maintenance and repair; Retail product sales and distribution Phone Number: 419-725-3401...

  17. Panel 2, Modeling the Financial and System Benefits of Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Modeling the Financial and System Benefits of Energy Storage Applications in Distribution ... storage with a 2 nd generation flow battery technology Approaches used to value ...

  18. State Energy Data System | Open Energy Information

    Open Energy Info (EERE)

    Data System Jump to: navigation, search Name State Energy Data System Data Format CSV Geographic Scope United States TODO: Import actual dataset contents into OpenEI The State...

  19. DISTRIBUTED ENERGY PROJECTS SUPPLEMENT TO ADVANCED FOSSIL LOAN GUARANTEE ANNOUNCEMENT

    Broader source: Energy.gov [DOE]

    LPO has released a supplement to its existing advanced Fossil Energy Projects solicitations to provide guidance on the kinds of Distributed Energy Projects and project structures it can support under the Title XVII loan program.

  20. Harmonic analysis of electrical distribution systems

    SciTech Connect (OSTI)

    1996-03-01

    This report presents data pertaining to research on harmonics of electric power distribution systems. Harmonic data is presented on RMS and average measurements for determination of harmonics in buildings; fluorescent ballast; variable frequency drive; georator geosine harmonic data; uninterruptible power supply; delta-wye transformer; westinghouse suresine; liebert datawave; and active injection mode filter data.

  1. NREL: Energy Systems Integration - 2015 Energy Systems Integration Facility

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Annual Report Calls to Industry: Bring Us Your Challenges 2015 Energy Systems Integration Facility Annual Report Calls to Industry: Bring Us Your Challenges April 6, 2016 The 2015 Energy Systems Integration Facility Annual Report is now available for download. The Energy Systems Integration Facility (ESIF) is the nation's premier facility for research, development, and demonstration of the components and strategies needed to optimize our entire energy system. It was established in 2013 by

  2. An advanced power distribution automation model system

    SciTech Connect (OSTI)

    Niwa, Shigeharu; Kanoi, Minoru; Nishijima, Kazuo; Hayami, Mitsuo

    1995-12-31

    An advanced power distribution automation (APDA) model system has been developed on the present basis of the automated distribution systems in Japan, which have been used for remote switching operations and for urgent supply restorations during faults. The increased use of electronic apparatuses sensitive to supply interruption requires very high supply reliability, and the final developed system is expected to be useful for this purpose. The developed model system adopts pole circuit breakers and remote termination units connected through 64kbps optical fibers to the computer of the automated system in the control center. Immediate switching operations for supply restorations during faults are possible through the restoration procedures, prepared beforehand, by the computer and by fast telecommunications using optical fibers. So, protection by the feeder circuit breaker in the substation can be avoided, which would otherwise cause the blackout of the whole distribution line. The test results show the effectiveness of model the system: successful fault locations and reconfiguration for supply restoration including separation of the fault sections (without blackout for the ground faults and with a short period (within 1 s) of blackout for the short-circuit faults).

  3. Electricity Transmission and Distribution Technologies - Energy Innovation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Portal Technology Marketing Summaries Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Marketing Summaries (72) Success Stories (2) Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success

  4. Integration of HVAC System Design with Simplified Duct Distribution...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Integration of HVAC System Design with Simplified Duct Distribution - Building America Top Innovation Integration of HVAC System Design with Simplified Duct Distribution - Building ...

  5. Physical Modeling of Scaled Water Distribution System Networks...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Physical Modeling of Scaled Water Distribution System Networks. Citation Details In-Document Search Title: Physical Modeling of Scaled Water Distribution System ...

  6. Transportation Energy Systems Analysis

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy ... Hydrogen Infrastructure Hydrogen Production Market Transformation Fuel Cells ...

  7. NREL: Energy Systems Integration - Advanced Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Advanced Energy Photo of a large gray inverter connected to numerous power cords. 500-kilowatt Advanced Energy inverter at the ESIF PSIL. Photo by Dennis Schroeder, NREL As the first industry partner to use the ESIF, Advanced Energy Industries is using the ESIF's Power Systems Integration Laboratory (PSIL) to test its new solar photovoltaic (PV) inverter technology with the facility's hardware-in-the-loop system and megawatt-scale grid simulators. Solar inverters are responsible for a number of

  8. Distributed parallel messaging for multiprocessor systems

    DOE Patents [OSTI]

    Chen, Dong; Heidelberger, Philip; Salapura, Valentina; Senger, Robert M; Steinmacher-Burrow, Burhard; Sugawara, Yutaka

    2013-06-04

    A method and apparatus for distributed parallel messaging in a parallel computing system. The apparatus includes, at each node of a multiprocessor network, multiple injection messaging engine units and reception messaging engine units, each implementing a DMA engine and each supporting both multiple packet injection into and multiple reception from a network, in parallel. The reception side of the messaging unit (MU) includes a switch interface enabling writing of data of a packet received from the network to the memory system. The transmission side of the messaging unit, includes switch interface for reading from the memory system when injecting packets into the network.

  9. NREL: Energy Systems Integration - INTEGRATE Partner Demonstrates Active

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Network Management of Distributed Energy Resources at NREL INTEGRATE Partner Demonstrates Active Network Management of Distributed Energy Resources at NREL April 28, 2016 New York-based Smarter Grid Solutions (SGS) has employed its Active Network Management (ANM) system at NREL to manage and maintain a modeled distribution grid within normal operating limits through the autonomous management, coordination, and control of distributed energy resources (DER) in real time. SGS started by

  10. Quarterly Coal Distribution Report - Energy Information Administration

    U.S. Energy Information Administration (EIA) Indexed Site

    domestic coal distribution data by coal origin state, coal destination state, mode of ... Wyoming was the leading origin state of coal, accounting for about 104.4 mmst of shipments ...

  11. NRG Systems | Open Energy Information

    Open Energy Info (EERE)

    Systems Jump to: navigation, search Name: NRG Systems Place: Hinesburg, Vermont Zip: 5461 Sector: Wind energy Product: A US-based manufacturer of wind measurement and turbine...

  12. NREL: Energy Systems Integration News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Systems Integration News March 2014 Welcome to Energy Systems Integration News, NREL's monthly newsletter designed to keep industry partners, stakeholders, associations, and educational institutes up to date on the latest energy systems integration (ESI) developments at NREL and worldwide. In This Issue ESI at NREL ESI Around the World Who's Who at the ESIF Coming Up ESI at NREL NREL Leads Demo of New Energy Management System at U.S. Naval Base As part of a joint initiative between the

  13. Renewable and Distributed Systems Integration Peer Review

    Energy Savers [EERE]

    4 Denver Marriott West Golden, Colorado AGENDA Tuesday, November 2, 2010 8:00 am Registration and Continental Breakfast 9:00 am-9:10 am Welcome Dr. Robert Hawsey, Associate Laboratory Director for Renewable Electricity and End Use Systems, US DOE-National Renewable Energy Laboratory 9:10 am-9:25 am Overview of Smart Grid Program Eric Lightner, U.S. Department of Energy 9:25 am-9:40 am Overview of Smart Grid Research and Development Activities Dan Ton, U.S. Department of Energy Moderator -

  14. NREL: Energy Storage - Energy Storage Systems Evaluation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Storage Systems Evaluation Photo of man standing between two vehicles and plugging the vehicle on the right into a charging station. NREL system evaluation has confirmed that extreme climates can have a dramatic impact on batteries and energy storage systems. Graph with numerous plots showing battery capacity and resistance with drive time data spanning a two-year period. An NREL algorithm is being used to extract battery state-of-health information and degradation trends from BMW Mini-E

  15. Advanced Communication and Control Solutions of Distributed Energy Resources (DER)

    SciTech Connect (OSTI)

    Asgeirsson, Haukur; Seguin, Richard; Sherding, Cameron; de Bruet, Andre, G.; Broadwater, Robert; Dilek, Murat

    2007-01-10

    This report covers work performed in Phase II of a two phase project whose objective was to demonstrate the aggregation of multiple Distributed Energy Resources (DERs) and to offer them into the energy market. The Phase I work (DE-FC36-03CH11161) created an integrated, but distributed, system and procedures to monitor and control multiple DERs from numerous manufacturers connected to the electric distribution system. Procedures were created which protect the distribution network and personnel that may be working on the network. Using the web as the communication medium for control and monitoring of the DERs, the integration of information and security was accomplished through the use of industry standard protocols such as secure SSL,VPN and ICCP. The primary objective of Phase II was to develop the procedures for marketing the power of the Phase I aggregated DERs in the energy market, increase the number of DER units, and implement the marketing procedures (interface with ISOs) for the DER generated power. The team partnered with the Midwest Independent System Operator (MISO), the local ISO, to address the energy market and demonstrate the economic dispatch of DERs in response to market signals. The selection of standards-based communication technologies offers the ability of the system to be deployed and integrated with other utilities’ resources. With the use of a data historian technology to facilitate the aggregation, the developed algorithms and procedures can be verified, audited, and modified. The team has demonstrated monitoring and control of multiple DERs as outlined in phase I report including procedures to perform these operations in a secure and safe manner. In Phase II, additional DER units were added. We also expanded on our phase I work to enhance communication security and to develop the market model of having DERs, both customer and utility owned, participate in the energy market. We are proposing a two-part DER energy market model--a utility need business model and an independent energy aggregator-business model. The approach of developing two group models of DER energy participation in the market is unique. The Detroit Edison (DECo, Utility)-led team includes: DTE Energy Technologies (Dtech, DER provider), Electrical Distribution Design (EDD, Virginia Tech company supporting EPRI’s Distribution Engineering Workstation, DEW), Systems Integration Specialists Company (SISCO, economic scheduling and real-time protocol integrator), and OSIsoft (PI software system for managing real-time information). This team is focused on developing the application engineering, including software systems necessary for DER’s integration, control and sale into the market place. Phase II Highlights Installed and tested an ICCP link with SSL (security) between DECo, the utility, and DTE Energy Technologies (DTECH), the aggregator, making DER data available to the utility for both monitoring and control. Installed and tested PI process book with circuit & DER operational models for DECo SOC/ROC operator’s use for monitoring of both utility circuit and customer DER parameters. The PI Process Book models also included DER control for the DECo SOC/ROC operators, which was tested and demonstrated control. The DER Tagging and Operating Procedures were developed, which allowed that control to be done in a safe manner, were modified for required MOC/MISO notification procedures. The Distribution Engineering Workstation (DEW) was modified to include temperature normalized load research statistics, using a 30 hour day-ahead weather feed. This allowed day-ahead forecasting of the customer load profile and the entire circuit to determine overload and low voltage problems. This forecast at the point of common coupling was passed to DTech DR SOC for use in their economic dispatch algorithm. Standard Work Instructions were developed for DER notification, sale, and operation into the MISO market. A software mechanism consisting of a suite of new and revised functionality was developed that integrated with the local ISO such that offers can be made electronically without human intervention. A suite of software was developed by DR SOC enabling DER usage in real time and day-ahead: Generation information file exchange with PI and the utility power flow A utility day-ahead information file Energy Offer Web Service Market Result Web Service Real-Time Meter Data Web Service Real-Time Notification Web Service Registered over 20 DER with MISO in Demand Response Market and demonstrated electronic sale to MISO.

  16. Energy Storage Systems 2007 Peer Review - International Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    International Energy Storage Program Presentations Energy Storage Systems 2007 Peer Review - International Energy Storage Program Presentations The U.S. DOE Energy Storage Systems ...

  17. Sandia Energy - Solar Energy Grid Integration Systems (SEGIS...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Solar Energy Grid Integration Systems (SEGIS) Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Grid Integration Solar Energy Grid Integration Systems...

  18. Advanced Wind Energy Systems AWES | Open Energy Information

    Open Energy Info (EERE)

    Wind Energy Systems AWES Jump to: navigation, search Name: Advanced Wind Energy Systems (AWES) Place: Toms River, New Jersey Sector: Wind energy Product: Advanced Wind Energy...

  19. Opportunities & Challenges for Microgrids and Distributed Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    an Overall Efficiency > 66% World's First Absorption Chiller with a Fuel Cell Thermal Energy Storage is Being Installed to Optimize the Efficiencies Placeholder for Doubling Our ...

  20. NREL: Energy Systems Integration - Publications

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Publications NREL Power Systems Engineers Publish 33 Articles in Last Year The lab's Power Systems Engineering Center published 33 journal and magazine articles highlighting recent research in integrating renewable energy into power systems. Get the full list of articles and links. NREL develops technical publications about its research and development activities in energy systems integration. Selected publications are listed below. For additional energy systems integration publications, explore

  1. Nuclear Energy Systems Lab

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management ...

  2. Energy recovery system

    DOE Patents [OSTI]

    Moore, Albert S.; Verhoff, Francis H.

    1980-01-01

    The present invention is directed to an improved wet air oxidation system and method for reducing the chemical oxygen demand (COD) of waste water used from scrubbers of coal gasification plants, with this COD reduction being sufficient to effectively eliminate waste water as an environmental pollutant. The improvement of the present invention is provided by heating the air used in the oxidation process to a temperature substantially equal to the temperature in the oxidation reactor before compressing or pressurizing the air. The compression of the already hot air further heats the air which is then passed in heat exchange with gaseous products of the oxidation reaction for "superheating" the gaseous products prior to the use thereof in turbines as the driving fluid. The superheating of the gaseous products significantly minimizes condensation of gaseous products in the turbine so as to provide a substantially greater recovery of mechanical energy from the process than heretofore achieved.

  3. Grid-Connected Renewable Energy Systems | Department of Energy

    Office of Environmental Management (EM)

    Grid-Connected Renewable Energy Systems Grid-Connected Renewable Energy Systems When connecting a home energy system to the electric grid, research and consider equipment required...

  4. QER Report: Energy Transmission, Storage, and Distribution Infrastructure | April 2015 LF-1

    Energy Savers [EERE]

    LF-1 Chapter VII Appendix A LIQUID FUELS LF-2 QER Report: Energy Transmission, Storage, and Distribution Infrastructure | April 2015 Appendix A: LIQUID FUELS Introduction The existing liquid fuel component of the energy transport, storage, and distribution infrastructure is enormously complex. Table A-1 shows both the scale and diversity of that system. This component of the Quadrennial Energy Review (QER) provides an integrated assessment of the emerging threats, risks, and opportunities within

  5. Improving Energy Efficiency by Developing Components for Distributed

    Broader source: Energy.gov (indexed) [DOE]

    Cooling and Heating Based on Thermal Comfort Modeling | Department of Energy 09 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ace_48_gundlach.pdf More Documents & Publications Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating Based on Thermal Comfort Modeling Improving Energy Efficiency by Developing Components for Distributed Cooling and Heating

  6. SOLID OXIDE FUEL CELL HYBRID SYSTEM FOR DISTRIBUTED POWER GENERATION

    SciTech Connect (OSTI)

    Kurt Montgomery; Nguyen Minh

    2003-08-01

    This report summarizes the work performed by Honeywell during the October 2001 to December 2001 reporting period under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL) entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. The main objective of this project is to develop and demonstrate the feasibility of a highly efficient hybrid system integrating a planar Solid Oxide Fuel Cell (SOFC) and a turbogenerator. The conceptual and demonstration system designs were proposed and analyzed, and these systems have been modeled in Aspen Plus. Work has also started on the assembly of dynamic component models and the development of the top-level controls requirements for the system. SOFC stacks have been fabricated and performance mapping initiated.

  7. DOE Distributes Energy-Saving Tools to Help Manufacturers Save Energy |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy Distributes Energy-Saving Tools to Help Manufacturers Save Energy DOE Distributes Energy-Saving Tools to Help Manufacturers Save Energy July 26, 2006 - 4:41pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) has distributed Save Energy Now CD-ROMs containing energy-saving information and software to 3,500 large industrial plant managers across the nation as part of a DOE initiative to help cut excessive energy use at industrial facilities across the nation.

  8. Distributed Power Electronics for PV Systems (Presentation)

    SciTech Connect (OSTI)

    Deline, C.

    2011-12-01

    An overview of the benefits and applications of microinverters and DC power optimizers in residential systems. Some conclusions from this report are: (1) The impact of shade is greater than just the area of shade; (2) Additional mismatch losses include panel orientation, panel distribution, inverter voltage window, soiling; (3) Per-module devices can help increase performance, 4-12% or more depending on the system; (4) Value-added benefits (safety, monitoring, reduced design constraints) are helping their adoption; and (5) The residential market is growing rapidly. Efficiency increases, cost reductions are improving market acceptance. Panel integration will further reduce price and installation cost. Reliability remains an unknown.

  9. Residential hot water distribution systems: Roundtablesession

    SciTech Connect (OSTI)

    Lutz, James D.; Klein, Gary; Springer, David; Howard, Bion D.

    2002-08-01

    Residential building practice currently ignores the lossesof energy and water caused by the poor design of hot water systems. Theselosses include: combustion and standby losses from water heaters, thewaste of water (and energy) while waiting for hot water to get to thepoint of use; the wasted heat as water cools down in the distributionsystem after a draw; heat losses from recirculation systems and thediscarded warmth of waste water as it runs down the drain. Severaltechnologies are available that save energy (and water) by reducing theselosses or by passively recovering heat from wastewater streams and othersources. Energy savings from some individual technologies are reported tobe as much as 30 percent. Savings calculations of prototype systemsincluding bundles of technologies have been reported above 50 percent.This roundtable session will describe the current practices, summarizethe results of past and ongoing studies, discuss ways to think about hotwater system efficiency, and point to areas of future study. We will alsorecommend further steps to reduce unnecessary losses from hot waterdistribution systems.

  10. Modeling of customer adoption of distributed energy resources

    SciTech Connect (OSTI)

    Marnay, Chris; Chard, Joseph S.; Hamachi, Kristina S.; Lipman, Timothy; Moezzi, Mithra M.; Ouaglal, Boubekeur; Siddiqui, Afzal S.

    2001-08-01

    This report describes work completed for the California Energy Commission (CEC) on the continued development and application of the Distributed Energy Resources Customer Adoption Model (DER-CAM). This work was performed at Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab) between July 2000 and June 2001 under the Consortium for Electric Reliability Technology Solutions (CERTS) Distributed Energy Resources Integration (DERI) project. Our research on distributed energy resources (DER) builds on the concept of the microgrid ({mu}Grid), a semiautonomous grouping of electricity-generating sources and end-use sinks that are placed and operated for the benefit of its members. Although a {mu}Grid can operate independent of the macrogrid (the utility power network), the {mu}Grid is usually interconnected, purchasing energy and ancillary services from the macrogrid. Groups of customers can be aggregated into {mu}Grids by pooling their electrical and other loads, and the most cost-effective combination of generation resources for a particular {mu}Grid can be found. In this study, DER-CAM, an economic model of customer DER adoption implemented in the General Algebraic Modeling System (GAMS) optimization software is used, to find the cost-minimizing combination of on-site generation customers (individual businesses and a {mu}Grid) in a specified test year. DER-CAM's objective is to minimize the cost of supplying electricity to a specific customer by optimizing the installation of distributed generation and the self-generation of part or all of its electricity. Currently, the model only considers electrical loads, but combined heat and power (CHP) analysis capability is being developed under the second year of CEC funding. The key accomplishments of this year's work were the acquisition of increasingly accurate data on DER technologies, including the development of methods for forecasting cost reductions for these technologies, and the creation of a credible example California {mu}Grid for use in this study and in future work. The work performed during this year demonstrates the viability of DER-CAM and of our approach to analyzing adoption of DER.

  11. NREL: Distributed Grid Integration - Hawaii Clean Energy Initiative

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hawaii Clean Energy Initiative The Hawai'i Clean Energy Initiative (HCEI) is a partnership between the state of Hawaii and the U.S. Department of Energy to achieve the most aggressive clean energy goals in the nation. To support this important initiative, NREL conducts research and development in the following distributed energy areas: Solar resource assessment Perform analysis of measured data and model development Supply output data sets for photovoltaic (PV) grid integration studies Deploy

  12. Pump Systems Optimization: Energy Efficiency

    Energy Savers [EERE]

    Pump Systems Optimization: Energy Efficiency and Bottom-Line Savings Host this one-day course to help participants learn how to identify and reduce hidden operation and energy costs. Participants will: * Identify energy savings * Increase profitability * Increase reliability * Earn seven PDH credits Attendees of the "Pump Systems Optimization" one-day course will gain valuable new skills to help them improve centrifugal pump system efficiency to reduce energy and operating costs while

  13. WINDExchange Webinar: Energy Department's Distributed Wind Industry...

    Broader source: Energy.gov (indexed) [DOE]

    00PM to 4:00PM EDT When people think of wind power, they usually picture large wind projects with long rows of turbines that send energy to distant end-users, but that image...

  14. Tips: Booklet Distribution | Department of Energy

    Energy Savers [EERE]

    Appliances Tips: Appliances This chart shows how much energy a typical appliance uses per year and its corresponding cost based on national averages. For example, a refrigerator/freezer uses almost five times the electricity the average television uses. This chart shows how much energy a typical appliance uses per year and its corresponding cost based on national averages. For example, a refrigerator/freezer uses almost five times the electricity the average television uses. Appliances account

  15. Unitil Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Energy Systems Place: New Hampshire Phone Number: 800-582-7276 Website: unitil.com Twitter: @Unitil Facebook: https:www.facebook.comUnitil Outage Hotline: 800-852-3339...

  16. Solar Energy Grid Integration Systems-Advanced Concepts | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Systems Integration » Solar Energy Grid Integration Systems-Advanced Concepts Solar Energy Grid Integration Systems-Advanced Concepts On September 1, 2011, DOE announced $25.9 million to fund eight solar projects that are targeting ways to develop power electronics and build smarter, more interactive systems and components so that solar energy can be integrated into the electric power distribution and transmission grid at higher levels. Part of the SunShot Systems Integration

  17. 2011 CHP/Industrial Distributed Energy R&D Portfolio Review ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    11 CHPIndustrial Distributed Energy R&D Portfolio Review - Agenda 2011 CHPIndustrial Distributed Energy R&D Portfolio Review - Agenda Agenda for the CHP Industrial Distributed ...

  18. Annual Coal Distribution Report - Energy Information Administration

    U.S. Energy Information Administration (EIA) Indexed Site

    Coal Glossary › FAQS › Overview Data Coal Data Browser (interactive query tool with charting and mapping) Summary Prices Reserves Consumption Production Stocks Imports, exports & distribution Coal-fired electric power plants Transportation costs to electric power sector International All coal data reports Analysis & Projections Major Topics Most popular Consumption Environment Imports & exports Industry characteristics Prices Production Projections Recurring Reserves Stocks All

  19. NUCLEAR ENERGY SYSTEM COST MODELING

    SciTech Connect (OSTI)

    Francesco Ganda; Brent Dixon

    2012-09-01

    The U.S. Department of Energys Fuel Cycle Technologies (FCT) Program is preparing to perform an evaluation of the full range of possible Nuclear Energy Systems (NES) in 2013. These include all practical combinations of fuels and transmuters (reactors and sub-critical systems) in single and multi-tier combinations of burners and breeders with no, partial, and full recycle. As part of this evaluation, Levelized Cost of Electricity at Equilibrium (LCAE) ranges for each representative system will be calculated. To facilitate the cost analyses, the 2009 Advanced Fuel Cycle Cost Basis Report is being amended to provide up-to-date cost data for each step in the fuel cycle, and a new analysis tool, NE-COST, has been developed. This paper explains the innovative Island approach used by NE-COST to streamline and simplify the economic analysis effort and provides examples of LCAE costs generated. The Island approach treats each transmuter (or target burner) and the associated fuel cycle facilities as a separate analysis module, allowing reuse of modules that appear frequently in the NES options list. For example, a number of options to be screened will include a once-through uranium oxide (UOX) fueled light water reactor (LWR). The UOX LWR may be standalone, or may be the first stage in a multi-stage system. Using the Island approach, the UOX LWR only needs to be modeled once and the module can then be reused on subsequent fuel cycles. NE-COST models the unit operations and life cycle costs associated with each step of the fuel cycle on each island. This includes three front-end options for supplying feedstock to fuel fabrication (mining/enrichment, reprocessing of used fuel from another island, and/or reprocessing of this islands used fuel), along with the transmuter and back-end storage/disposal. Results of each island are combined based on the fractional energy generated by each islands in an equilibrium system. The cost analyses use the probability distributions of key parameters and employs Monte Carlo sampling to arrive at an islands cost probability density function (PDF). When comparing two NES to determine delta cost, strongly correlated parameters can be cancelled out so that only the differences in the systems contribute to the relative cost PDFs. For example, one comparative analysis presented in the paper is a single stage LWR-UOX system versus a two-stage LWR-UOX to LWR-MOX system. In this case, the first stage of both systems is the same (but with different fractional energy generation), while the second stage of the UOX to MOX system uses the same type transmuter but the fuel type and feedstock sources are different. In this case, the cost difference between systems is driven by only the fuel cycle differences of the MOX stage.

  20. Problems of future energy systems

    SciTech Connect (OSTI)

    Kaya, Y.

    1981-04-01

    The purpose of this paper is to describe some of the key issues in the present energy system and to discuss possible future visions of the system. The first part of this paper deals with the progress in energy conservation since the oil embargo in 1973. Assuming the prospect that the petroleum supply will peak within this century and then will go down, and that the limit of energy conservation of the present energy systems will be achieved during the same period, the possible and desirable image is discussed of the future energy system. 5 refs.

  1. SMR Handbook: Hybrid Energy Systems Involving SMRs

    SciTech Connect (OSTI)

    Shannon M. Bragg-Sitton

    2014-09-01

    Large-scale nuclear reactors are traditionally operated for a singular purpose: steady-state production of dispatchable baseload electricity that is distributed broadly on the electric grid. While this implementation is key to a sustainable, reliable energy grid, SMRs offer new opportunities for increased use of clean nuclear energy for both electric and thermal applications in more locations – while still accommodating the desire to support renewable production sources. This chapter considers a scenario in which renewable generation would be tightly coupled with the nuclear generation source – behind the grid – to meet the grid demand as an integrated energy system while simultaneously producing other commodities with the available thermal energy.

  2. Energy Storage Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Storage Safety Strategic Plan Now Available Energy Storage Safety Strategic Plan Now Available December 23, 2014 - 10:25am Addthis The Office of Electricity Delivery and Energy Reliability (OE) has worked with industry and other stakeholders to develop the Energy Storage Safety Strategic Plan, a roadmap for grid energy storage safety that highlights safety validation techniques, incident preparedness, safety codes, standards, and regulations. The Plan, which is now available for downloading,

  3. National Renewable Energy Laboratory's Energy Systems Integration Facility Overview

    Broader source: Energy.gov [DOE]

    This brochure describes the Energy Systems Integration Facility at National Renewable Energy Laboratory.

  4. NREL: Energy Systems Integration - Power Systems Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Power Systems Engineering Power systems engineering at NREL means working with the electricity industry to optimize strategies for effectively interconnecting renewable resources and emerging energy efficiency technologies with the electric power system. Power systems engineering focuses on resolving grid integration barriers to sustainable, economic, secure, and reliable electricity based on a paradigm of high penetration of renewable energy, coordinated and intelligent cyber-control, and

  5. Microhydropower Systems | Department of Energy

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    energy. Although there are several ways to harness the moving water to produce energy, run-of-the-river systems, which do not require large storage reservoirs, are often used...

  6. Foundational Report Series: Advanced Distribution Management Systems for Grid Modernization

    SciTech Connect (OSTI)

    Wang, Jianhui

    2015-09-01

    This report describes the application functions for distribution management systems (DMS). The application functions are those surveyed by the IEEE Power and Energy Society’s Task Force on Distribution Management Systems. The description of each DMS application includes functional requirements and the key features and characteristics in current and future deployments, as well as a summary of the major benefits provided by each function to stakeholders — from customers to shareholders. Due consideration is paid to the fact that the realizable benefits of each function may differ by type of utility, whether investor-owned, cooperative, or municipal. This report is sufficient to define the functional requirements of each application for system procurement (request-for-proposal [RFP]) purposes and for developing preliminary high-level use cases for those functions. However, it should not be considered a design document that will enable a vendor or software developer to design and build actual DMS applications.

  7. Property:Distributed Generation System Heating-Cooling Application...

    Open Energy Info (EERE)

    This is a property of type Page. Pages using the property "Distributed Generation System Heating-Cooling Application" Showing 21 pages using this property. D Distributed...

  8. Test report light duty utility arm power distribution system (PDS)

    SciTech Connect (OSTI)

    Clark, D.A.

    1996-03-04

    The Light Duty Utility Arm (LDUA) Power Distribution System has completed vendor and post-delivery acceptance testing. The Power Distribution System has been found to be acceptable and is now ready for integration with the overall LDUA system.

  9. Hot Water Distribution System Model Enhancements

    SciTech Connect (OSTI)

    Hoeschele, M.; Weitzel, E.

    2012-11-01

    This project involves enhancement of the HWSIM distribution system model to more accurately model pipe heat transfer. Recent laboratory testing efforts have indicated that the modeling of radiant heat transfer effects is needed to accurately characterize piping heat loss. An analytical methodology for integrating radiant heat transfer was implemented with HWSIM. Laboratory test data collected in another project was then used to validate the model for a variety of uninsulated and insulated pipe cases (copper, PEX, and CPVC). Results appear favorable, with typical deviations from lab results less than 8%.

  10. System for controlling a hybrid energy system

    DOE Patents [OSTI]

    Hoff, Brian D.; Akasam, Sivaprasad

    2013-01-29

    A method includes identifying a first operating sequence of a repeated operation of at least one non-traction load. The method also includes determining first and second parameters respectively indicative of a requested energy and output energy of the at least one non-traction load and comparing the determined first and second parameters at a plurality of time increments of the first operating sequence. The method also includes determining a third parameter of the hybrid energy system indicative of energy regenerated from the at least one non-traction load and monitoring the third parameter at the plurality of time increments of the first operating sequence. The method also includes determining at least one of an energy deficiency or an energy surplus associated with the non-traction load of the hybrid energy system and selectively adjusting energy stored within the storage device during at least a portion of a second operating sequence.

  11. Monitoring and Benchmarking for Energy Information Systems |...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Monitoring and Benchmarking for Energy Information Systems Monitoring and Benchmarking for Energy Information Systems Figure 1: Features of a sample CBERD energy information system ...

  12. Analysis and control of distributed cooperative systems.

    SciTech Connect (OSTI)

    Feddema, John Todd; Parker, Eric Paul; Wagner, John S.; Schoenwald, David Alan

    2004-09-01

    As part of DARPA Information Processing Technology Office (IPTO) Software for Distributed Robotics (SDR) Program, Sandia National Laboratories has developed analysis and control software for coordinating tens to thousands of autonomous cooperative robotic agents (primarily unmanned ground vehicles) performing military operations such as reconnaissance, surveillance and target acquisition; countermine and explosive ordnance disposal; force protection and physical security; and logistics support. Due to the nature of these applications, the control techniques must be distributed, and they must not rely on high bandwidth communication between agents. At the same time, a single soldier must easily direct these large-scale systems. Finally, the control techniques must be provably convergent so as not to cause undo harm to civilians. In this project, provably convergent, moderate communication bandwidth, distributed control algorithms have been developed that can be regulated by a single soldier. We have simulated in great detail the control of low numbers of vehicles (up to 20) navigating throughout a building, and we have simulated in lesser detail the control of larger numbers of vehicles (up to 1000) trying to locate several targets in a large outdoor facility. Finally, we have experimentally validated the resulting control algorithms on smaller numbers of autonomous vehicles.

  13. Industrial Distributed Energy R&D Portfolio Review Summary Report

    SciTech Connect (OSTI)

    none,

    2011-12-01

    Summary report of the Industrial Distributed Energy R&D Portfolio Review. The purpose of the review was for project recipients to report on their project goals, approach, and results to date.

  14. DOE Zero Energy Ready Home Efficient Hot Water Distribution I...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    I -- What's At Stake Webinar (Text Version) DOE Zero Energy Ready Home Efficient Hot Water Distribution I -- What's At Stake Webinar (Text Version) Below is the text version of the...

  15. Flexible Distributed Energy & Water from Waste for the Food ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Aditya Kumar of GE Global Research, at the U.S. DOE Industrial Distributed Energy Portfolio Review Meeting in Washington, D.C. on June 1-2, 2011. PDF icon flexiblechpkumar.pdf ...

  16. Enhanced Security-Constrained OPF With Distributed Battery Energy Storage

    SciTech Connect (OSTI)

    Wen, YF; Guo, CX; Kirschen, DS; Dong, SF

    2015-01-01

    This paper discusses how fast-response distributed battery energy storage could be used to implement post-contingency corrective control actions. Immediately after a contingency, the injections of distributed batteries could be adjusted to alleviate overloads and reduce flows below their short-term emergency rating. This ensures that the post-contingency system remains stable until the operator has redispatched the generation. Implementing this form of corrective control would allow operators to take advantage of the difference between the short-and long-term ratings of the lines and would therefore increase the available transmission capacity. This problem is formulated as a two-stage, enhanced security-constrained OPF problem, in which the first-stage optimizes the pre-contingency generation dispatch, while the second-stage minimizes the corrective actions for each contingency. Case studies based on a six-bus test system and on the RTS 96 demonstrate that the proposed method provides effective corrective actions and can guarantee operational reliability and economy.

  17. Sandia Energy Systems Engineering

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    p-structural-strength-gains-attentionfeed 0 Hydrogen Fuel-Cell Funding Awarded for Feasibility Study http:energy.sandia.govhydrogen-fuel-cell-funding-awarded-for-feasibility-s...

  18. Renewable Energy Systems Exemption

    Broader source: Energy.gov [DOE]

    Recognized forms of energy generation include solar photovoltaics, passive solar, wind, solid waste, decomposition of organic wastes, geothermal, small hydropower plants, low-emission wood or...

  19. Distributed fiber optic moisture intrusion sensing system

    DOE Patents [OSTI]

    Weiss, Jonathan D.

    2003-06-24

    Method and system for monitoring and identifying moisture intrusion in soil such as is contained in landfills housing radioactive and/or hazardous waste. The invention utilizes the principle that moist or wet soil has a higher thermal conductance than dry soil. The invention employs optical time delay reflectometry in connection with a distributed temperature sensing system together with heating means in order to identify discrete areas within a volume of soil wherein temperature is lower. According to the invention an optical element and, optionally, a heating element may be included in a cable or other similar structure and arranged in a serpentine fashion within a volume of soil to achieve efficient temperature detection across a large area or three dimensional volume of soil. Remediation, moisture countermeasures, or other responsive action may then be coordinated based on the assumption that cooler regions within a soil volume may signal moisture intrusion where those regions are located.

  20. Passiv Systems | Open Energy Information

    Open Energy Info (EERE)

    Place: England, United Kingdom Zip: RG14 2PZ Product: UK based developer of a home energy management system, covering heating, hot water and electrical appliances....

  1. Using Home Energy Scoring Systems

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program Data and Evaluation Peer Exchange Call: Using Home Energy Scoring Systems, call slides and discussion summary, March 28, 2013.

  2. Energy Systems | Argonne National Laboratory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    About Us For ES Employees Staff Directory Argonne National Laboratory Energy Systems Research Facilities Publications News Green delivery Major Chicago-based baking company sees ...

  3. KUKA Systems | Open Energy Information

    Open Energy Info (EERE)

    search Name: KUKA Systems Place: Augsburg, Germany Zip: D-86165 Sector: Solar, Wind energy Product: German manufacturer of assembly lines for solar and wind industries....

  4. Automotive Energy Storage Systems 2015

    Broader source: Energy.gov [DOE]

    Automotive Energy Storage Systems 2015, the ITB Group’s 16th annual technical conference, was held from March 4–5, 2015, in Novi, Michigan.

  5. Assessment of grid-friendly collective optimization framework for distributed energy resources

    SciTech Connect (OSTI)

    Pensini, Alessandro; Robinson, Matthew; Heine, Nicholas; Stadler, Michael; Mammoli, Andrea

    2015-11-04

    Distributed energy resources have the potential to provide services to facilities and buildings at lower cost and environmental impact in comparison to traditional electric-gridonly services. The reduced cost could result from a combination of higher system efficiency and exploitation of electricity tariff structures. Traditionally, electricity tariffs are designed to encourage the use of ‘off peak’ power and discourage the use of ‘onpeak’ power, although recent developments in renewable energy resources and distributed generation systems (such as their increasing levels of penetration and their increased controllability) are resulting in pressures to adopt tariffs of increasing complexity. Independently of the tariff structure, more or less sophisticated methods exist that allow distributed energy resources to take advantage of such tariffs, ranging from simple pre-planned schedules to Software-as-a-Service schedule optimization tools. However, as the penetration of distributed energy resources increases, there is an increasing chance of a ‘tragedy of the commons’ mechanism taking place, where taking advantage of tariffs for local benefit can ultimately result in degradation of service and higher energy costs for all. In this work, we use a scheduling optimization tool, in combination with a power distribution system simulator, to investigate techniques that could mitigate the deleterious effect of ‘selfish’ optimization, so that the high-penetration use of distributed energy resources to reduce operating costs remains advantageous while the quality of service and overall energy cost to the community is not affected.

  6. South Asia Energy Management Systems Inc SAEMS | Open Energy...

    Open Energy Info (EERE)

    Energy Management Systems Inc SAEMS Jump to: navigation, search Name: South Asia Energy Management Systems, Inc. (SAEMS) Place: California Product: South Asia Energy is...

  7. Oak Creek Energy Systems Wind Farm II | Open Energy Information

    Open Energy Info (EERE)

    II Jump to: navigation, search Name Oak Creek Energy Systems Wind Farm II Facility Oak Creek Energy Systems Sector Wind energy Facility Type Commercial Scale Wind Facility Status...

  8. MIT - Center for Advanced Nuclear Energy Systems | Open Energy...

    Open Energy Info (EERE)

    - Center for Advanced Nuclear Energy Systems Jump to: navigation, search Logo: MIT - Center for Advanced Nuclear Energy Systems Name: MIT - Center for Advanced Nuclear Energy...

  9. Energy Policy and Systems Analysis Presentation: Energy Modeling...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Policy and Systems Analysis Presentation: Energy Modeling 101 Energy Policy and Systems Analysis Presentation: Energy Modeling 101 This presentation covers the basics of power ...

  10. Oak Creek Energy Systems Inc | Open Energy Information

    Open Energy Info (EERE)

    Creek Energy Systems Inc Place: California Sector: Wind energy Product: Californian wind project developer and asset manager. References: Oak Creek Energy Systems Inc1 This...

  11. Interconnecting PV on New York City's Secondary Network Distribution System

    SciTech Connect (OSTI)

    K. Anderson; M. Coddington; K. Burman; S. Hayter; B. Kroposki; and A. Watson

    2009-11-30

    The U.S. Department of Energy (DOE) has teamed with cities across the country through the Solar America Cities (SAC) partnership program to help reduce barriers and accelerate implementation of solar energy. The New York City SAC team is a partnership between the City University of New York (CUNY), the New York City Mayor s Office of Long-term Planning and Sustainability, and the New York City Economic Development Corporation (NYCEDC).The New York City SAC team is working with DOE s National Renewable Energy Laboratory (NREL) and Con Edison, the local utility, to develop a roadmap for photovoltaic (PV) installations in the five boroughs. The city set a goal to increase its installed PV capacity from1.1 MW in 2005 to 8.1 MW by 2015 (the maximum allowed in 2005). A key barrier to reaching this goal, however, is the complexity of the interconnection process with the local utility. Unique challenges are associated with connecting distributed PV systems to secondary network distribution systems (simplified to ???¢????????networks???¢??????? in this report). Although most areas of the country use simpler radial distribution systems to distribute electricity, larger metropolitan areas like New York City typically use networks to increase reliability in large load centers. Unlike the radial distribution system, where each customer receives power through a single line, a network uses a grid of interconnected lines to deliver power to each customer through several parallel circuits and sources. This redundancy improves reliability, but it also requires more complicated coordination and protection schemes that can be disrupted by energy exported from distributed PV systems. Currently, Con Edison studies each potential PV system in New York City to evaluate the system s impact on the network, but this is time consuming for utility engineers and may delay the customer s project or add cost for larger installations. City leaders would like to streamline this process to facilitate faster, simpler, and less expensive distributed PV system interconnections. To assess ways to improve the interconnection process, NREL conducted a four-part study with support from DOE. The NREL team then compiled the final reports from each study into this report. In Section 1???¢????????PV Deployment Analysis for New York City???¢????????we analyze the technical potential for rooftop PV systems in the city. This analysis evaluates potential PV power production in ten Con Edison networks of various locations and building densities (ranging from high density apartments to lower density single family homes). Next, we compare the potential power production to network loads to determine where and when PV generation is most likely to exceed network load and disrupt network protection schemes. The results of this analysis may assist Con Edison in evaluating future PV interconnection applications and in planning future network protection system upgrades. This analysis may also assist other utilities interconnecting PV systems to networks by defining a method for assessing the technical potential of PV in the network and its impact on network loads. Section 2???¢????????A Briefing for Policy Makers on Connecting PV to a Network Grid???¢????????presents an overview intended for nontechnical stakeholders. This section describes the issues associated with interconnecting PV systems to networks, along with possible solutions. Section 3???¢????????Technical Review of Concerns and Solutions to PV Interconnection in New Y

  12. Multi-State Load Models for Distribution System Analysis

    SciTech Connect (OSTI)

    Schneider, Kevin P.; Fuller, Jason C.; Chassin, David P.

    2011-11-01

    Recent work in the field of distribution system analysis has shown that the traditional method of peak load analysis is not adequate for the analysis of emerging distribution system technologies. Voltage optimization, demand response, electric vehicle charging, and energy storage are examples of technologies with characteristics having daily, seasonal, and/or annual variations. In addition to the seasonal variations, emerging technologies such as demand response and plug in electric vehicle charging have the potential to send control signals to the end use loads which will affect how they consume energy. In order to support time-series analysis over different time frames and to incorporate potential control signal inputs it is necessary to develop detailed end use load models which accurately represent the load under various conditions, and not just during the peak load period. This paper will build on previous work on detail end use load modeling in order to outline the method of general multi-state load models for distribution system analysis.

  13. Microhydropower Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Electricity & Fuel » Buying & Making Electricity » Microhydropower Systems Microhydropower Systems Microhydropower can be one of the most simple and consistent forms or renewable energy on your property. Microhydropower can be one of the most simple and consistent forms or renewable energy on your property. If you have water flowing through your property, you might consider building a small hydropower system to generate electricity. Microhydropower systems usually generate up to 100

  14. Sandia Energy Systems Analysis

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    new-crew-database-receives-first-set-of-datafeed 0 Aerodynamic Wind-Turbine Blade Design for the National Rotor Testbed http:energy.sandia.govaerodynamic-wind-turbine-bl...

  15. Model documentation natural gas transmission and distribution model (NGTDM) of the national energy modeling system. Volume II: Model developer`s report

    SciTech Connect (OSTI)

    Not Available

    1995-01-03

    To partially fulfill the requirements for {open_quotes}Model Acceptance{close_quotes} as stipulated in EIA Standard 91-01-01 (effective February 3, 1991), the Office of Integrated Analysis and Forecasting has conducted tests of the Natural Gas Transmission and Distribution Model (NGTDM) for the specific purpose of validating the forecasting model. This volume of the model documentation presents the results of {open_quotes}one-at-a-time{close_quotes} sensitivity tests conducted in support of this validation effort. The test results are presented in the following forms: (1) Tables of important model outputs for the years 2000 and 2010 are presented with respect to change in each input from the reference case; (2) Tables of percent changes from base case results for the years 2000 and 2010 are presented for important model outputs; (3) Tables of conditional sensitivities (percent change in output/percent change in input) for the years 2000 and 2010 are presented for important model outputs; (4) Finally, graphs presenting the percent change from base case results for each year of the forecast period are presented for selected key outputs. To conduct the sensitivity tests, two main assumptions are made in order to test the performance characteristics of the model itself and facilitate the understanding of the effects of the changes in the key input variables to the model on the selected key output variables: (1) responses to the amount demanded do not occur since there are no feedbacks of inputs from other NEMS models in the stand-alone NGTDM run. (2) All the export and import quantities from and to Canada and Mexico, and liquefied natural gas (LNG) imports and exports are held fixed (i.e., there are no changes in imports and exports between the reference case and the sensitivity cases) throughout the forecast period.

  16. NREL: Energy Analysis - dGen: Distributed Generation Market Demand Model

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The Distributed Generation Market Demand (dGen) model is a geospatially rich, bottom-up, market-penetration model that simulates the potential adoption of distributed energy resources (DERs) for residential, commercial, and industrial entities in the continental United States through 2050. The dGen model builds on and provides significant advances over NREL's deprecated Solar Deployment System (SolarDS) model. The dGen model can help develop deployment forecasts for distributed resources,

  17. NREL: Innovation Impact - Energy Systems Integration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Systems Integration Menu Home Home Solar Solar Wind Wind Analysis Analysis Bioenergy Bioenergy Buildings Buildings Transportation Transportation Manufacturing Manufacturing Energy Systems Integration Energy Systems Integration What is Energy Systems Integration? Close Energy systems integration (ESI) brings together the wide range of energy carriers-electricity, thermal sources, and fuels-with other infrastructures, such as water and transportation. Where most energy sources, delivery

  18. Western Renewable Energy Generation Information System | Open...

    Open Energy Info (EERE)

    Renewable Energy Generation Information System Jump to: navigation, search Name: Western Renewable Energy Generation Information System Place: Sacramento, California Zip:...

  19. Clock distribution system for digital computers

    DOE Patents [OSTI]

    Wyman, Robert H.; Loomis, Jr., Herschel H.

    1981-01-01

    Apparatus for eliminating, in each clock distribution amplifier of a clock distribution system, sequential pulse catch-up error due to one pulse "overtaking" a prior clock pulse. The apparatus includes timing means to produce a periodic electromagnetic signal with a fundamental frequency having a fundamental frequency component V'.sub.01 (t); an array of N signal characteristic detector means, with detector means No. 1 receiving the timing means signal and producing a change-of-state signal V.sub.1 (t) in response to receipt of a signal above a predetermined threshold; N substantially identical filter means, one filter means being operatively associated with each detector means, for receiving the change-of-state signal V.sub.n (t) and producing a modified change-of-state signal V'.sub.n (t) (n=1, . . . , N) having a fundamental frequency component that is substantially proportional to V'.sub.01 (t-.theta..sub.n (t) with a cumulative phase shift .theta..sub.n (t) having a time derivative that may be made uniformly and arbitrarily small; and with the detector means n+1 (1.ltoreq.n

  20. NREL: Energy Systems Integration - Capabilities

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Capabilities Photo of a group of men in front of a computer visualization screen. NREL's energy systems integration research capabilities include high-resolution data visualization. Here, Secretary of Energy Ernest Moniz experiences a 3D wind turbine model during a tour of the Energy Systems Integration Facility. Photo by Dennis Schroeder, NREL NREL has unique research capabilities, experienced staff, and state-of-the-art equipment to find solutions to the challenges of effectively integrating

  1. System Integration of Distributed Power for Complete Building Systems: Phase 2 Report

    SciTech Connect (OSTI)

    Kramer, R.

    2003-12-01

    This report describes NiSource Energy Technologies Inc.'s second year of a planned 3-year effort to advance distributed power development, deployment, and integration. Its long-term goal is to design ways to extend distributed generation into the physical design and controls of buildings. NET worked to meet this goal through advances in the implementation and control of combined heat and power systems in end-user environments and a further understanding of electric interconnection and siting issues. The specific objective of work under this subcontract is to identify the system integration and implementation issues of DG and develop and test potential solutions to these issues. In addition, recommendations are made to resolve identified issues that may hinder or slow the integration of integrated energy systems into the national energy picture.

  2. Save Energy Now in Your Steam Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    icon Save Energy Now in Your Steam Systems (January 2006) More Documents & Publications Save Energy Now in Your Process Heating Systems Install an Automatic Blowdown-Control System

  3. Interconnecting PV on New York City's Secondary Network Distribution System

    SciTech Connect (OSTI)

    Anderson, K.; Coddington, M.; Burman, K.; Hayter, S.; Kroposki, B.; Watson, A.

    2009-12-01

    This study describes technical assistance provided by NREL to help New York City and Con Edison improve the interconnection of distributed PV systems on a secondary network distribution system.

  4. Integrated Energy Systems (IES) for Buildings: A Market Assessment,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    September 2002 | Department of Energy (IES) for Buildings: A Market Assessment, September 2002 Integrated Energy Systems (IES) for Buildings: A Market Assessment, September 2002 Integrated Energy Systems (IES) combine on-site power or distributed generation technologies with thermally activated technologies to provide cooling, heating, humidity control, energy storage and/or other process functions using thermal energy normally wasted in the production of electricity/power. This study

  5. Heating System Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    System Basics Heating System Basics August 16, 2013 - 2:32pm Addthis A variety of heating technologies are available today. You can learn more about what heating systems and heat pumps are commonly used today and how they work below. To learn how to use these technologies in your own home, see the Home Heating Systems section on Energy Saver. Furnaces and Boilers Furnaces heat air and distribute the heated air through a building using ducts. Boilers heat water, providing either hot water or

  6. ENERGY-TRANSFER SYSTEMS

    DOE Patents [OSTI]

    Thonemann, P.C.; Cowhig, W.T.; Davenport, P.A.

    1963-04-01

    This patent relates to the transfer of energy in a traveling electromagnetic wave to direct-current electrical energy in a gaseous medium. The traveling wave is generated by means of a radio-frequency oscillator connected across a capacitance-loaded helix wound around a sealed tube enclosing the gaseous medium. The traveling wave causes the electrons within the medium to drift towards one end of the tube. The direct current appearing across electrodes placed at each end of the tube is then used by some electrical means. (AEC)

  7. Secondary Network Distribution Systems Background and Issues Related to the Interconnection of Distributed Resources

    SciTech Connect (OSTI)

    Behnke, M.; Erdman, W.; Horgan, S.; Dawson, D.; Feero, W.; Soudi, F.; Smith, D.; Whitaker, C.; Kroposki, B.

    2005-07-01

    This document addresses the technical considerations associated with the interconnection of distributed resources (DR) with secondary network distribution systems. It provides an overview of the characteristics of distribution systems and interconnection requirements and identifies unique issues specific to network interconnections. It also identifies the network-specific interconnection issues for which test protocols should be developed. Recommended criteria and requirements for the interconnection of DR with network distribution systems are presented.

  8. Evaluating Domestic Hot Water Distribution System Options With Validated Analysis Models

    SciTech Connect (OSTI)

    Weitzel, E.; Hoeschele, M.

    2014-09-01

    A developing body of work is forming that collects data on domestic hot water consumption, water use behaviors, and energy efficiency of various distribution systems. A full distribution system developed in TRNSYS has been validated using field monitoring data and then exercised in a number of climates to understand climate impact on performance. This study builds upon previous analysis modelling work to evaluate differing distribution systems and the sensitivities of water heating energy and water use efficiency to variations of climate, load, distribution type, insulation and compact plumbing practices. Overall 124 different TRNSYS models were simulated. Of the configurations evaluated, distribution losses account for 13-29% of the total water heating energy use and water use efficiency ranges from 11-22%. The base case, an uninsulated trunk and branch system sees the most improvement in energy consumption by insulating and locating the water heater central to all fixtures. Demand recirculation systems are not projected to provide significant energy savings and in some cases increase energy consumption. Water use is most efficient with demand recirculation systems, followed by the insulated trunk and branch system with a central water heater. Compact plumbing practices and insulation have the most impact on energy consumption (2-6% for insulation and 3-4% per 10 gallons of enclosed volume reduced). The results of this work are useful in informing future development of water heating best practices guides as well as more accurate (and simulation time efficient) distribution models for annual whole house simulation programs.

  9. Alarm Management System for the D/3 Distributed Control System

    Energy Science and Technology Software Center (OSTI)

    1997-03-19

    As industrial processes continue to grow in size and complexity, the Distrubuted Control Systems that automate and monitor these processes expand in a like manner. This increase in control system complexity has resulted in ever increasing numbers of alarms presented to the operator. The challenge for today's control system designer is to find innovative ways to present alarm information to the operator such that despite the large number of alarms, the operator is able tomore » quickly assess the status of the plant and immediately respond to the most critical alarms in a timely manner. This software package, designed and developed for the Savannah River Site Replacement High Level Waste Evaporator/Waste Removal Distributed Control System installed on the H-Area Tank Farm, provides an alarm system which utilizes the annunciator (SKID) panel as a means of statusing the plant and providing single keystroke access to the display on which an alarm resides.« less

  10. Solar energy grid integration systems "SEGIS"

    SciTech Connect (OSTI)

    None, None

    2007-10-01

    The inevitable transformation of the electrical grid to a more distributed generation configuration requires solar system capabilities well beyond simple net-metered, grid-connected approaches. Time-of-use and peak-demand rate structures will require more sophisticated systems designs that integrate energy management and/or energy storage into the system architecture. Controlling power flow into and from the utility grid will be required to ensure grid reliability and power quality. Alternative protection strategies will also be required to accommodate large numbers of distributed energy sources. This document provides an overview of the R&D needs and describes some pathways to promising solutions. The solutions will, in many cases, require R&D of new components, innovative inverter/controllers, energy management systems, innovative energy storage and a suite of advanced control algorithms, technical methodologies, protocols and the associated communications. It is expected that these solutions will help to push the “advanced integrated system” and “smart grid” evolutionary processes forward in a faster but focused manner.

  11. 2015 Distributed Wind Market Report Fact Sheet | Department of Energy

    Office of Environmental Management (EM)

    DOE CONNECTED LIGHTING SYSTEMS PRESENTATIONS 2015 DOE CONNECTED LIGHTING SYSTEMS PRESENTATIONS PDF icon Meeting Introduction: James Brodrick, U.S. Department of Energy PDF icon Keynote: Tom Herbst, Cisco PDF icon Why Lighting Systems Need to Evolve: Gabe Arnold, DesignLights Consortium PDF icon DOE Focus Areas and Panel Introduction: Michael Poplawski, Pacific Northwest National Laboratory PDF icon Energy Reporting: Michael Poplawski, Pacific Northwest National Laboratory PDF icon Energy

  12. Cathode power distribution system and method of using the same for power distribution

    DOE Patents [OSTI]

    Williamson, Mark A; Wiedmeyer, Stanley G; Koehl, Eugene R; Bailey, James L; Willit, James L; Barnes, Laurel A; Blaskovitz, Robert J

    2014-11-11

    Embodiments include a cathode power distribution system and/or method of using the same for power distribution. The cathode power distribution system includes a plurality of cathode assemblies. Each cathode assembly of the plurality of cathode assemblies includes a plurality of cathode rods. The system also includes a plurality of bus bars configured to distribute current to each of the plurality of cathode assemblies. The plurality of bus bars include a first bus bar configured to distribute the current to first ends of the plurality of cathode assemblies and a second bus bar configured to distribute the current to second ends of the plurality of cathode assemblies.

  13. Characterizing and Improving Distributed Intrusion Detection Systems.

    SciTech Connect (OSTI)

    Hurd, Steven A.; Proebstel, Elliot P.

    2007-11-01

    Due to ever-increasing quantities of information traversing networks, network administrators are developing greater reliance upon statistically sampled packet information as the source for their intrusion detection systems (IDS). Our research is aimed at understanding IDS performance when statistical packet sampling is used. Using the Snort IDS and a variety of data sets, we compared IDS results when an entire data set is used to the results when a statistically sampled subset of the data set is used. Generally speaking, IDS performance with statistically sampled information was shown to drop considerably even under fairly high sampling rates (such as 1:5). Characterizing and Improving Distributed Intrusion Detection Systems4AcknowledgementsThe authors wish to extend our gratitude to Matt Bishop and Chen-Nee Chuah of UC Davis for their guidance and support on this work. Our thanks are also extended to Jianning Mai of UC Davis and Tao Ye of Sprint Advanced Technology Labs for their generous assistance.We would also like to acknowledge our dataset sources, CRAWDAD and CAIDA, without which this work would not have been possible. Support for OC48 data collection is provided by DARPA, NSF, DHS, Cisco and CAIDA members.

  14. Distributed Energy Technology Characterization (Desiccant Technologies), January 2004

    Broader source: Energy.gov [DOE]

    Desiccant technology and applications, and designing them for utilization of available thermal energy in a combined heat and power (CHP) system.

  15. Energy Systems Integration Partnerships, NREL + Wyle (Fact Sheet), Energy Systems Integration (ESI), NREL (National Renewable Energy Laboratory)

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    WYLE Under a research agreement with Wyle Labs, NREL is working with the U.S. Army to complete development and testing of the Consolidated Utility Base Energy (CUBE) System- a power distribution device that delivers power from solar, battery, and diesel generators to loads on forward operating bases. The CUBE was originally developed for the Army's Expeditionary Energy and Sustainment Systems, formerly known as Mobile Electric Power. The Army's Rapid Equipping Force is funding NREL to complete

  16. Introduction to an Energy Management System | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Introduction to an Energy Management System Introduction to an Energy Management System This presentation provides an overview to energy management system (EnMS) implementation describing what an EnMS is and why an EnMS is useful. PDF icon Introduction to an Energy Management System (April 19, 2012) More Documents & Publications The Do and Check Processes of an Energy Management System Planning for an Energy Management System Becoming a Certified Practitioner or a Certified Energy Engine

  17. Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation

    SciTech Connect (OSTI)

    David Deangelis; Rich Depuy; Debashis Dey; Georgia Karvountzi; Nguyen Minh; Max Peter; Faress Rahman; Pavel Sokolov; Deliang Yang

    2004-09-30

    This report summarizes the work performed by Hybrid Power Generation Systems, LLC (HPGS) during the April to October 2004 reporting period in Task 2.3 (SOFC Scaleup for Hybrid and Fuel Cell Systems) under Cooperative Agreement DE-FC26-01NT40779 for the U. S. Department of Energy, National Energy Technology Laboratory (DOE/NETL), entitled ''Solid Oxide Fuel Cell Hybrid System for Distributed Power Generation''. This study analyzes the performance and economics of power generation systems for central power generation application based on Solid Oxide Fuel Cell (SOFC) technology and fueled by natural gas. The main objective of this task is to develop credible scale up strategies for large solid oxide fuel cell-gas turbine systems. System concepts that integrate a SOFC with a gas turbine were developed and analyzed for plant sizes in excess of 20 MW. A 25 MW plant configuration was selected with projected system efficiency of over 65% and a factory cost of under $400/kW. The plant design is modular and can be scaled to both higher and lower plant power ratings. Technology gaps and required engineering development efforts were identified and evaluated.

  18. Control and regulation of modern distribution system, ForskEL...

    Open Energy Info (EERE)

    system, ForskEL (Smart Grid Project) Jump to: navigation, search Project Name Control and regulation of modern distribution system, ForskEL Country Denmark Coordinates...

  19. The NetLogger Methodology for High Performance Distributed Systems

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... distributed system deployed in the DARPA-funded MAGIC gigabit testbed network 6 5. ... The work described in this paper is supported by DARPA, Computer Systems Technology Office ...

  20. Foundational Report Series. Advanced Distribution management Systems for Grid Modernization (Importance of DMS for Distribution Grid Modernization)

    SciTech Connect (OSTI)

    Wang, Jianhui

    2015-09-01

    Grid modernization is transforming the operation and management of electric distribution systems from manual, paper-driven business processes to electronic, computer-assisted decisionmaking. At the center of this business transformation is the distribution management system (DMS), which provides a foundation from which optimal levels of performance can be achieved in an increasingly complex business and operating environment. Electric distribution utilities are facing many new challenges that are dramatically increasing the complexity of operating and managing the electric distribution system: growing customer expectations for service reliability and power quality, pressure to achieve better efficiency and utilization of existing distribution system assets, and reduction of greenhouse gas emissions by accommodating high penetration levels of distributed generating resources powered by renewable energy sources (wind, solar, etc.). Recent “storm of the century” events in the northeastern United States and the lengthy power outages and customer hardships that followed have greatly elevated the need to make power delivery systems more resilient to major storm events and to provide a more effective electric utility response during such regional power grid emergencies. Despite these newly emerging challenges for electric distribution system operators, only a small percentage of electric utilities have actually implemented a DMS. This paper discusses reasons why a DMS is needed and why the DMS may emerge as a mission-critical system that will soon be considered essential as electric utilities roll out their grid modernization strategies.

  1. Combined Heat and Power (CHP) Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distributed Energy » Combined Heat and Power (CHP) Systems Combined Heat and Power (CHP) Systems The CHP systems program aimed to facilitate acceptance of distributed energy in end-use sectors by forming partnerships with industry consortia in the commercial building, merchant stores, light industrial, supermarkets, restaurants, hospitality, health care and high-tech industries. In high-tech industries such as telecommunications, commercial data processing and internet services, the use of

  2. National Energy Modeling System (NEMS)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The National Energy Modeling System (NEMS) is a computer-based, energy-economy modeling system of U.S. through 2030. NEMS projects the production, imports, conversion, consumption, and prices of energy, subject to assumptions on macroeconomic and financial factors, world energy markets, resource availability and costs, behavioral and technological choice criteria, cost and performance characteristics of energy technologies, and demographics. NEMS was designed and implemented by the Energy Information Administration (EIA) of the U.S. Department of Energy (DOE). NEMS can be used to analyze the effects of existing and proposed government laws and regulations related to energy production and use; the potential impact of new and advanced energy production, conversion, and consumption technologies; the impact and cost of greenhouse gas control; the impact of increased use of renewable energy sources; and the potential savings from increased efficiency of energy use; and the impact of regulations on the use of alternative or reformulated fuels. NEMS has also been used for a number of special analyses at the request of the Administration, U.S. Congress, other offices of DOE and other government agencies, who specify the scenarios and assumptions for the analysis. Modules allow analyses to be conducted in energy topic areas such as residential demand, industrial demand, electricity market, oil and gas supply, renewable fuels, etc.

  3. MULTIFUNCTIONAL SOLAR ENERGY SYSTEMS RESEARCH PROJECT

    SciTech Connect (OSTI)

    Byard Wood, Lance Seefeldt, Ronald Sims, Bradley Wahlen, and Dan Dye

    2012-06-29

    The solar energy available within the visible portion of the solar spectrum is about 300 W/m2 (43%) and that available in the UV and IR portion is about 400 W/m2 (57%). This provides opportunities for developing integrated energy systems that capture and use specific wavelengths of the solar spectrum for different purposes. For example: biofuels from photosynthetic microbes use only the visible light; solar cells use a narrow band of the solar spectrum that could be either mostly in the visible or in the IR regions of the solar spectrum, depending on the photovoltaic materials, e.g., gallium antimonide (GaSb) cells utilize predominately IR radiation; and finally, solar panels that heat water utilize a broad range of wavelengths (visible plus IR). The basic idea of this research is that sunlight has many possible end-use applications including both direct use and energy conversion schemes; it is technically feasible to develop multifunctional solar energy systems capable of addressing several end-use needs while increasing the overall solar energy utilization efficiency when compared to single-purpose solar technologies. Such a combination of technologies could lead to more cost-competitive ?multifunctional? systems that add value and broaden opportunities for integrated energy systems. The goal of this research is to increase the overall energy efficacy and cost competitiveness of solar systems. The specific objectives of this research were: 1) Evaluate the efficacy of a combined photobioreactor and electric power system; 2) Improve the reliability and cost effectiveness of hybrid solar lighting systems ? a technology in which sunlight is collected and distributed via optical fibers into the interior of a building; 3) Evaluate the efficacy of using filtered light to increase the production of biomass in photobioreactors and provide more solar energy for other uses; 4) Evaluates several concepts for wavelength shifting such that a greater percentage of the solar spectrum energy can be used for photosynthesis.

  4. Systems Analysis | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    About the Geothermal Technologies Office » Systems Analysis Systems Analysis What is the Systems Analysis program? The Systems Analysis program in the Geothermal Technologies Office focuses primarily on: Environmental issues Policy, regulatory, and financing Economic Analysis and validation Data and Tools that support geothermal exploration and development As a key part of the Systems Analysis portfolio, a two-year, comprehensive Vision Study for geothermal energy development is underway to

  5. Cumberland System | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Cumberland System Cumberland System October 1, 2015 CU-CC-1-J Wholesale Power Rate Schedule Area: Duke Energy Progress, Western Division System: CU October 1, 2015 CU-CBR-1-I Wholesale Power Rate Schedule Area: Big Rivers and Henderson, KY System: CU October 1, 2015 CU-Replacement-3 Wholesale Power Rate Schedule Area: Virginia, North Carolina, Tennessee, Georgia, Alabama, Mississippi, Kentucky, southern Illinois System: CU October 1, 2015 CU-CTV-1-I Wholesale Power Rate Schedule Area: TVA

  6. Engineered Geothermal Systems Energy Return On Energy Investment

    Office of Scientific and Technical Information (OSTI)

    EGS EROI - 1 Engineered Geothermal Systems Energy Return On Energy Investment A.J. Mansure, Geothermal Consultant, ajm@q.com Albuquerque, NM 12/10/2012 Key Words: energy, EROI, EGS, efficiency, energy investment, energy return, input energy, energy payback, and net energy. Abstract Energy Return On Investment (EROI) is an important figure of merit for assessing the viability of energy alternatives. Too often comparisons of energy systems use "efficiency" when EROI would be more

  7. Evaluation Framework and Tools for Distributed Energy Resources

    SciTech Connect (OSTI)

    Gumerman, Etan Z.; Bharvirkar, Ranjit R.; LaCommare, Kristina Hamachi; Marnay , Chris

    2003-02-01

    The Energy Information Administration's (EIA) 2002 Annual Energy Outlook (AEO) forecast anticipates the need for 375 MW of new generating capacity (or about one new power plant) per week for the next 20 years, most of which is forecast to be fueled by natural gas. The Distributed Energy and Electric Reliability Program (DEER) of the Department of Energy (DOE), has set a national goal for DER to capture 20 percent of new electric generation capacity additions by 2020 (Office of Energy Efficiency and Renewable Energy 2000). Cumulatively, this amounts to about 40 GW of DER capacity additions from 2000-2020. Figure ES-1 below compares the EIA forecast and DEER's assumed goal for new DER by 2020 while applying the same definition of DER to both. This figure illustrates that the EIA forecast is consistent with the overall DEER DER goal. For the purposes of this study, Berkeley Lab needed a target level of small-scale DER penetration upon which to hinge consideration of benefits and costs. Because the AEO2002 forecasted only 3.1 GW of cumulative additions from small-scale DER in the residential and commercial sectors, another approach was needed to estimate the small-scale DER target. The focus here is on small-scale DER technologies under 500 kW. The technology size limit is somewhat arbitrary, but the key results of interest are marginal additional costs and benefits around an assumed level of penetration that existing programs might achieve. Berkeley Lab assumes that small-scale DER has the same growth potential as large scale DER in AEO2002, about 38 GW. This assumption makes the small-scale goal equivalent to 380,000 DER units of average size 100 kW. This report lays out a framework whereby the consequences of meeting this goal might be estimated and tallied up. The framework is built around a list of major benefits and a set of tools that might be applied to estimate them. This study lists some of the major effects of an emerging paradigm shift away from central station power and towards a more dispersed and heterogeneous power system. Seventeen societal effects of small-scale DER are briefly summarized. Each effect is rated as high, medium or low, on three different scales that will help determine the optimal social investment. The three scales are: the magnitude of the economic benefit; the likelihood that the benefit can be monetized in efficient markets, i.e. internalized; and how tractable it might be to quantify each benefit analytically. Some of the modeling tools that may be used to estimate these effects are described in the Appendix.

  8. Distributed Energy Alternative to Electrical Distribution Grid Expansion in Consolidated Edison Service Territory

    SciTech Connect (OSTI)

    Kingston, Tim; Kelly, John

    2008-08-01

    The nation's power grid, specifically the New York region, faces burgeoning energy demand and suffers from congested corridors and aging equipment that cost New York consumers millions of dollars. Compounding the problem is high-density buildup in urban areas that limits available space to expand grid capacity. Coincidently, these urban areas are precisely where additional power is required. DER in this study refers to combined heat and power (CHP) technology, which simultaneously generates heat and electricity at or near the point where the energy will be consumed. There are multiple CHP options available that, combined with a portfolio of other building energy efficiency (EE) strategies, can help achieve a more efficient supply-demand balance than what the grid can currently provide. As an alternative to expanding grid capacity, CHP and EE strategies can be deployed in a flexible manner at virtually any point on the grid to relieve load. What's more, utilities and customers can install them in a variety of potentially profitable applications that are more environmentally friendly. Under the auspices of the New York State Energy Research and Development Authority (NYSERDA) and the Oak Ridge National Laboratory representing the Office of Electricity of the U.S. Department of Energy, Gas Technology Institute (GTI) conducted this study in cooperation with Consolidated Edison to help broaden the market penetration of EE and DER. This study provides realistic load models and identifies the impacts that EE and DER can have on the electrical distribution grid; specifically within the current economic and regulatory environment of a high load growth area of New York City called Hudson Yards in Midtown Manhattan. These models can be used to guide new policies that improve market penetration of appropriate CHP and EE technologies in new buildings. The following load modeling scenarios were investigated: (1) Baseline: All buildings are built per the Energy Conservation Construction Code of New York State (No CHP applied and no EE above the code); (2) Current Policy: This is a business-as-usual (BAU) scenario that incorporates some EE and DER based on market potential in the current economic and regulatory environment; (3) Modified Rate 14RA: This economic strategy is meant to decrease CHP payback by removing the contract demand from, and adding the delivery charge to the Con Edison Standby Rate PSC2, SC14-RA; (4) Carbon Trade at $20/metric tonne (mt): This policy establishes a robust carbon trading system in NY that would allow building owners to see the carbon reduction resulting from CHP and EE.

  9. Technical Challenges of Plug-In Hybrid Electric Vehicles and Impacts to the US Power System: Distribution System Analysis

    SciTech Connect (OSTI)

    Gerkensmeyer, Clint; Kintner-Meyer, Michael CW; DeSteese, John G.

    2010-01-01

    This report documents work conducted by Pacific Northwest National Laboratory (PNNL) for the Department of Energy (DOE) to address three basic questions concerning how typical existing electrical distribution systems would be impacted by the addition of PHEVs to residential loads.

  10. Distribution Infrastructure and End Use | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Distribution Infrastructure and End Use Distribution Infrastructure and End Use The expanded Renewable Fuel Standard (RFS2) created under the Energy Independence and Security Act (EISA) of 2007 requires 36 billion gallons of biofuels to be blended into transportation fuel by 2022. Meeting the RFS2 target introduces new challenges for U.S. infrastructure, as modifications will be needed to transport and deliver renewable fuels that are not compatible with existing petroleum infrastructure. The

  11. Advanced Communication and Control of Distributed Energy Resources at Detroit Edison

    SciTech Connect (OSTI)

    Haukur Asgeirsson; Richard Seguin

    2004-01-31

    The project objective was to create the communication and control system, the process and the economic procedures that will allow owners (e.g., residential, commercial, industrial, manufacturing, etc.) of Distributed Energy Resources (DER) connected in parallel to the electric distribution to have their resources operated in a manner that protects the electric utility distribution network and personnel that may be working on the network. The Distribution Engineering Workstation (DEW) (a power flow and short circuit modeling tool) was modified to calculate the real-time characteristics of the distribution network based on the real-time electric distribution network information and provide DER operating suggestions to the Detroit Edison system operators so that regional electric stability is maintained. Part of the suggestion algorithm takes into account the operational availability of DERs, which is known by the Energy Aggregator, DTE Energy Technologies. The availability information will be exchanged from DTE Energy Technologies to Detroit Edison. For the calculated suggestions to be used by the Detroit Edison operators, procedures were developed to allow an operator to operate a DER by requesting operation of the DER through DTE Energy Technologies. Prior to issuing control of a DER, the safety of the distribution network and personnel needs to be taken into account. This information will be exchanged from Detroit Edison to DTE Energy Technologies. Once it is safe to control the DER, DTE Energy Technologies will issue the control signal. The real-time monitoring of the DECo system will reflect the DER control. Multi-vendor DER technologies representing approximately 4 MW of capacity was monitored and controlled using a web-based communication path. The DER technologies included are a photovoltaic system, energy storage, fuel cells and natural gas/diesel internal combustion engine generators. This report documents Phase I result for the Detroit Edison (Utility) led team, which also includes: DTE Energy Technology (DER provider & Aggregator), Electrical Distribution Design (Virginia Tech company supporting DEW); Systems Integration Specialists Company (real-time protocol integrator); and OSIsoft (software system for managing real-time information). This work was performed in anticipation of being selected for Phase II of the Advanced Communication and Control of Distributed Energy Resources project.

  12. Department of Energy Budget Execution Funds Distribution and Control Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2006-01-09

    As a service to all Department of Energy (DOE) elements, including the National Nuclear Security Administration (NNSA), this Manual provides the user with a single source for references, definitions, and procedural requirements for distributing and controlling Department of Energy (DOE) funds. Accordingly, the Manual provides detailed requirements to supplement DOE O 135.1A, Budget Execution—Funds Distribution and Control, dated 1-9-06. Paragraph 5, of DOE O 135.1A defines organizational responsibilities pertinent to this Manual. Supersedes DOE M 135.1-1.

  13. Power Hardware-in-the-Loop (PHIL) Testing Facility for Distributed Energy Storage (Poster)

    SciTech Connect (OSTI)

    Neubauer.J.; Lundstrom, B.; Simpson, M.; Pratt, A.

    2014-06-01

    The growing deployment of distributed, variable generation and evolving end-user load profiles presents a unique set of challenges to grid operators responsible for providing reliable and high quality electrical service. Mass deployment of distributed energy storage systems (DESS) has the potential to solve many of the associated integration issues while offering reliability and energy security benefits other solutions cannot. However, tools to develop, optimize, and validate DESS control strategies and hardware are in short supply. To fill this gap, NREL has constructed a power hardware-in-the-loop (PHIL) test facility that connects DESS, grid simulator, and load bank hardware to a distribution feeder simulation.

  14. Detection of contamination of municipal water distribution systems

    DOE Patents [OSTI]

    Cooper, John F.

    2012-01-17

    A system for the detection of contaminates of a fluid in a conduit. The conduit is part of a fluid distribution system. A chemical or biological sensor array is connected to the conduit. The sensor array produces an acoustic signal burst in the fluid upon detection of contaminates in the fluid. A supervisory control system connected to the fluid and operatively connected to the fluid distribution system signals the fluid distribution system upon detection of contaminates in the fluid.

  15. High Penetration of Photovoltaic (PV) Systems into the Distribution Grid, Workshop Report, February 24-25, 2009

    SciTech Connect (OSTI)

    Not Available

    2009-06-01

    Outcomes from the EERE Solar Energy Technologies Program workshop on high penetration of photovoltaic (PV) systems into the distribution grid, Feb. 24-25, 2009, Ontario, Calif.

  16. 2011 CHP/Industrial Distributed Energy R&D Portfolio Review ...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    1 CHPIndustrial Distributed Energy R&D Portfolio Review - Summary Report 2011 CHPIndustrial Distributed Energy R&D Portfolio Review - Summary Report Summary report of the 2011 ...

  17. NREL: Energy Systems Integration Facility - Thermal Distribution...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    The boiler has a modulating gas valve to control the output of the burner to match the load, with a minimum turndown ratio of 10. The 60-ton chiller cools water with continuous ...

  18. Solar Energy Grid Integration Systems -- Energy Storage (SEGIS-ES).

    SciTech Connect (OSTI)

    Hanley, Charles J.; Ton, Dan T.; Boyes, John D.; Peek, Georgianne Huff

    2008-07-01

    This paper describes the concept for augmenting the SEGIS Program (an industry-led effort to greatly enhance the utility of distributed PV systems) with energy storage in residential and small commercial applications (SEGIS-ES). The goal of SEGIS-ES is to develop electrical energy storage components and systems specifically designed and optimized for grid-tied PV applications. This report describes the scope of the proposed SEGIS-ES Program and why it will be necessary to integrate energy storage with PV systems as PV-generated energy becomes more prevalent on the nation's utility grid. It also discusses the applications for which energy storage is most suited and for which it will provide the greatest economic and operational benefits to customers and utilities. Included is a detailed summary of the various storage technologies available, comparisons of their relative costs and development status, and a summary of key R&D needs for PV-storage systems. The report concludes with highlights of areas where further PV-specific R&D is needed and offers recommendations about how to proceed with their development.

  19. Steam System Energy Conservation Measures

    Energy Science and Technology Software Center (OSTI)

    2010-12-31

    This software requires inputs of simple system inventory information and calculates the energy and cost benefits of various retrofit opportunities. This tool includes energy conservation measures for: fixing steam leaks. This tool calculates energy savings, demand reduction, cost savings, and building life cycle costs including: simple payback, discounted payback, net-present value, and savings to investment ratio. In addition this tool also displays the environmental benefits of a project.

  20. Technical Publications by System | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and Fuel Savings Industrial Steam System Heat-Transfer Solutions Industrial Steam System Process-Control Schemes Save Energy Now in Your Steam Systems CIBO Energy Efficiency ...

  1. Reinvestigation of the charge density distribution in arc discharge fusion system

    SciTech Connect (OSTI)

    Sheng, Lin Horng; Yee, Lee Kim; Nan, Phua Yeong; Thung, Yong Yun; Khok, Yong Thian; Rahman, Faidz Abd

    2015-04-24

    A continual arc discharge system has been setup and the light intensity of arc discharge has been profiled. The mathematical model of local energy density distribution in arc discharge fusion has been simulated which is in good qualitative agreement with light intensity profile of arc discharge in the experiments. Eventually, the local energy density distribution of arc discharge system is able to be precisely manipulated to act as heat source in the fabrication of fused fiber devices.

  2. Survey of Emissions Models for Distributed Combined Heat and Power Systems,

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2007 | Department of Energy Survey of Emissions Models for Distributed Combined Heat and Power Systems, 2007 Survey of Emissions Models for Distributed Combined Heat and Power Systems, 2007 The models surveyed in this study vary in design, scope, and detail, but they all seek to capture the functions of an energy economy and use knowledge of economic interactions to simulate the effects of economic and policy changes. In this 2007 document, Integrated Planning Model (IPM), Average Displaced

  3. Building America Webinar: Ductless Hydronic Distribution Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    This webinar was presented by research team Alliance for Residential Building Innovation (ARBI), and reviewed findings from a feasibility study of ductless hydronic distribution ...

  4. Voices of Experience | Advanced Distribution Management Systems...

    Office of Environmental Management (EM)

    ... and optimize the performance of the distribution grid. ... foundation that can support each component of an ADMS. ... renewable generation; * Analysis showing that enabling ...

  5. TMA Global Wind Energy Systems | Open Energy Information

    Open Energy Info (EERE)

    Zip: 82001 Sector: Wind energy Product: Involved in the development, manufacture, and marketing of vertical axis wind energy turbines and hybrid energy systems. References: TMA...

  6. Encore Energy Systems formerly Energy Vision International formerly...

    Open Energy Info (EERE)

    (formerly Energy Vision International (formerly DeMarco Energy Systems of Amer Place: Oxford, Massachusetts Zip: 38655 Sector: Geothermal energy Product: Provider geothermal heat...

  7. Sandia Energy - Sandia Solar Energy Test System Cited in National...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Solar Energy Test System Cited in National Engineering Competition Home Renewable Energy Energy Facilities Partnership News News & Events Concentrating Solar Power Solar National...

  8. NREL: Energy Systems Integration - Raytheon

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Raytheon Photo of two men pointing to a computer screen in a laboratory. Raytheon and its project partners worked with NREL engineers to perform system-level testing of a simulated microgrid in the ESIF. The actual microgrid will be installed at MCAS Miramar in 2015. Photo by Dennis Schroeder, NREL 32580 NREL has partnered with Raytheon Company, Primus Power, and Advanced Energy to successfully demonstrate an advanced microgrid system that draws on batteries and solar photovoltaic energy for its

  9. Office of Energy Policy and Systems Analysis | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Office of Energy Policy and Systems Analysis Office of Energy Policy and Systems Analysis The Quadrennial Energy Review The Quadrennial Energy Review The Quadrennial Energy Review (QER) is the first review of our nation's energy infrastructure. (Photo Credit: Dennis Schroeder/NREL) Read more Revolution Now Revolution Now For four key clean energy technologies, the clean energy future has already arrived. Read more Partnership for Energy Sector Climate Resilience Partnership for Energy Sector

  10. Leveraging AMI data for distribution system model calibration and situational awareness

    SciTech Connect (OSTI)

    Peppanen, Jouni; Reno, Matthew J.; Thakkar, Mohini; Grijalva, Santiago; Harley, Ronald G.

    2015-01-15

    The many new distributed energy resources being installed at the distribution system level require increased visibility into system operations that will be enabled by distribution system state estimation (DSSE) and situational awareness applications. Reliable and accurate DSSE requires both robust methods for managing the big data provided by smart meters and quality distribution system models. This paper presents intelligent methods for detecting and dealing with missing or inaccurate smart meter data, as well as the ways to process the data for different applications. It also presents an efficient and flexible parameter estimation method based on the voltage drop equation and regression analysis to enhance distribution system model accuracy. Finally, it presents a 3-D graphical user interface for advanced visualization of the system state and events. Moreover, we demonstrate this paper for a university distribution network with the state-of-the-art real-time and historical smart meter data infrastructure.

  11. Leveraging AMI data for distribution system model calibration and situational awareness

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Peppanen, Jouni; Reno, Matthew J.; Thakkar, Mohini; Grijalva, Santiago; Harley, Ronald G.

    2015-01-15

    The many new distributed energy resources being installed at the distribution system level require increased visibility into system operations that will be enabled by distribution system state estimation (DSSE) and situational awareness applications. Reliable and accurate DSSE requires both robust methods for managing the big data provided by smart meters and quality distribution system models. This paper presents intelligent methods for detecting and dealing with missing or inaccurate smart meter data, as well as the ways to process the data for different applications. It also presents an efficient and flexible parameter estimation method based on the voltage drop equation andmore » regression analysis to enhance distribution system model accuracy. Finally, it presents a 3-D graphical user interface for advanced visualization of the system state and events. Moreover, we demonstrate this paper for a university distribution network with the state-of-the-art real-time and historical smart meter data infrastructure.« less

  12. Integrated Security System | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    control systems architecture PDF icon Integrated Security System More Documents & Publications Cybersecurity for Energy Delivery Systems 2010 Peer Review Presentations - ...

  13. Bella Energy formely Sun Electric Systems | Open Energy Information

    Open Energy Info (EERE)

    Bella Energy formely Sun Electric Systems Jump to: navigation, search Name: Bella Energy (formely Sun Electric Systems) Place: Lafayette, Colorado Zip: 80026 Sector: Solar Product:...

  14. Practical Ocean Energy Management Systems Inc POEMS | Open Energy...

    Open Energy Info (EERE)

    Ocean Energy Management Systems Inc POEMS Jump to: navigation, search Name: Practical Ocean Energy Management Systems Inc (POEMS) Place: San Diego, California Zip: 92138 Sector:...

  15. Decentralised Energy Systems India Pvt Ltd | Open Energy Information

    Open Energy Info (EERE)

    Decentralised Energy Systems India Pvt Ltd Jump to: navigation, search Name: Decentralised Energy Systems India Pvt Ltd Place: Bangalore, Karnataka, India Zip: 560032 Sector:...

  16. Stand Alone Renewable Energy Systems Case Studies | Open Energy...

    Open Energy Info (EERE)

    Alone Renewable Energy Systems Case Studies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Stand Alone Renewable Energy Systems Case Studies AgencyCompany...

  17. Mini-Grid Renewable Energy Systems Case Studies | Open Energy...

    Open Energy Info (EERE)

    Mini-Grid Renewable Energy Systems Case Studies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Mini-Grid Renewable Energy Systems Case Studies AgencyCompany...

  18. Gadhia Solar Energy Systems Pvt Ltd GSESPL | Open Energy Information

    Open Energy Info (EERE)

    Gadhia Solar Energy Systems Pvt Ltd GSESPL Jump to: navigation, search Name: Gadhia Solar Energy Systems Pvt Ltd. (GSESPL) Place: Valsad, Gujarat, India Zip: 396035 Sector: Solar...

  19. Fraunhofer Institute for Solar Energy Systems ISE | Open Energy...

    Open Energy Info (EERE)

    Solar Energy Systems ISE Jump to: navigation, search Name: Fraunhofer Institute for Solar Energy Systems (ISE) Place: Freiburg, Germany Zip: 79110 Sector: Solar Product: Leading...

  20. Solapur Bio Energy System Pvt Ltd SBES | Open Energy Information

    Open Energy Info (EERE)

    Solapur Bio Energy System Pvt Ltd SBES Jump to: navigation, search Name: Solapur Bio Energy System Pvt. Ltd. (SBES) Place: Bhopal, Madhya Pradesh, India Zip: 462016 Sector: Biomass...

  1. Wind Energy Systems Technology LLC | Open Energy Information

    Open Energy Info (EERE)

    Technology LLC Jump to: navigation, search Logo: Wind Energy Systems Technology LLC Name: Wind Energy Systems Technology LLC Address: 17350 State Highway 249 Place: Houston, Texas...

  2. Wind Energy Systems Technologies LLC WEST | Open Energy Information

    Open Energy Info (EERE)

    Systems Technologies LLC WEST Jump to: navigation, search Name: Wind Energy Systems Technologies LLC (WEST) Place: New Iberia, Louisiana Sector: Wind energy Product: Wants to...

  3. Renewable Energy Systems (RES Mediterranean) | Open Energy Information

    Open Energy Info (EERE)

    Mediterranean) Jump to: navigation, search Logo: Renewable Energy Systems (RES Mediterranean) Name: Renewable Energy Systems (RES Mediterranean) Address: 330 rue du Mourelet Z.I....

  4. Renewable Energy Systems (RES Scandinavia) | Open Energy Information

    Open Energy Info (EERE)

    Scandinavia) Jump to: navigation, search Logo: Renewable Energy Systems (RES Scandinavia) Name: Renewable Energy Systems (RES Scandinavia) Address: Lilla Bommen 1 Place:...

  5. Renewable Energy Systems (RES UK and Ireland) | Open Energy Informatio...

    Open Energy Info (EERE)

    (RES UK and Ireland) Jump to: navigation, search Logo: Renewable Energy Systems (RES UK and Ireland) Name: Renewable Energy Systems (RES UK and Ireland) Address: Beaufort Court Egg...

  6. PROJECT PROFILE: Opportunistic Hybrid Communications Systems for Distributed PV Coordination (SuNLaMP)

    Broader source: Energy.gov [DOE]

    As more distributed solar power is added to the electric power grid and becomes an increasing proportion of total energy generation, the grid must support more stringent requirements to ensure continued reliable and cost-effective grid operations. New communications systems are needed to allow for bidirectional information exchange between distributed photovoltaic (PV) generators and various information and controls systems of the electric power grid. This project at the National Renewable Energy Laboratory (NREL) will develop a hybrid communications system to meet the needs of monitoring and controlling millions of distributed PV generators, while taking advantage of existing communications infrastructure, which will greatly reduce the costs necessary to provide these services.

  7. NREL: Energy Systems Integration - NREL Releases High-Penetration PV

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Handbook for Distribution Engineers Releases High-Penetration PV Handbook for Distribution Engineers A new resource sponsored by the Energy Department's SunShot Initiative helps distribution engineers understand the challenges of high-penetration PV integration. January 27, 2016 As solar photovoltaic (PV) systems are increasingly installed throughout the country at distribution-level utility scale, a new challenge is emerging: how to safely and effectively integrate greater amounts of

  8. Energy optimization system

    DOE Patents [OSTI]

    Zhou, Zhi; de Bedout, Juan Manuel; Kern, John Michael; Biyik, Emrah; Chandra, Ramu Sharat

    2013-01-22

    A system for optimizing customer utility usage in a utility network of customer sites, each having one or more utility devices, where customer site is communicated between each of the customer sites and an optimization server having software for optimizing customer utility usage over one or more networks, including private and public networks. A customer site model for each of the customer sites is generated based upon the customer site information, and the customer utility usage is optimized based upon the customer site information and the customer site model. The optimization server can be hosted by an external source or within the customer site. In addition, the optimization processing can be partitioned between the customer site and an external source.

  9. Scalable Distributed Automation System: Scalable Real-time Decentralized Volt/VAR Control

    SciTech Connect (OSTI)

    2012-03-01

    GENI Project: Caltech is developing a distributed automation system that allows distributed generators—solar panels, wind farms, thermal co-generation systems—to effectively manage their own power. To date, the main stumbling block for distributed automation systems has been the inability to develop software that can handle more than 100,000 distributed generators and be implemented in real time. Caltech’s software could allow millions of generators to self-manage through local sensing, computation, and communication. Taken together, localized algorithms can support certain global objectives, such as maintaining the balance of energy supply and demand, regulating voltage and frequency, and minimizing cost. An automated, grid-wide power control system would ease the integration of renewable energy sources like solar power into the grid by quickly transmitting power when it is created, eliminating the energy loss associated with the lack of renewable energy storage capacity of the grid.

  10. EnergyCS Inc Energy Control Systems Engineering Inc | Open Energy...

    Open Energy Info (EERE)

    EnergyCS Inc Energy Control Systems Engineering Inc Jump to: navigation, search Name: EnergyCS Inc (Energy Control Systems Engineering, Inc) Sector: Services Product: String...

  11. Energy Management for Motor-Driven Systems | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Management for Motor-Driven Systems Energy Management for Motor-Driven Systems This document assists in establishing an energy management plan, identifying energy savings opportunities, and designing a motor improvement plan. PDF icon Energy Management for Motor-Driven Systems (June 1997) More Documents & Publications Eliminate Voltage Unbalance Optimizing Your Motor-Driven System Continuous Energy Improvement in Motor Driven Systems - A Guidebook for Industry

  12. Sustainable Systems LLC | Open Energy Information

    Open Energy Info (EERE)

    Zip: 59812 Sector: Renewable Energy Product: Renewable energy and biobased product research, development and commercialization company. References: Sustainable Systems...

  13. Evaluating Domestic Hot Water Distribution System Options with Validated Analysis Models

    SciTech Connect (OSTI)

    Weitzel, E.; Hoeschele, E.

    2014-09-01

    A developing body of work is forming that collects data on domestic hot water consumption, water use behaviors, and energy efficiency of various distribution systems. Transient System Simulation Tool (TRNSYS) is a full distribution system developed that has been validated using field monitoring data and then exercised in a number of climates to understand climate impact on performance. In this study, the Building America team built upon previous analysis modeling work to evaluate differing distribution systems and the sensitivities of water heating energy and water use efficiency to variations of climate, load, distribution type, insulation and compact plumbing practices. Overall, 124 different TRNSYS models were simulated. The results of this work are useful in informing future development of water heating best practices guides as well as more accurate (and simulation time efficient) distribution models for annual whole house simulation programs.

  14. Distributed Generation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Distributed Energy Distributed Energy Distributed energy consists of a range of smaller-scale and modular devices designed to provide electricity, and sometimes also thermal energy, in locations close to consumers. They include fossil and renewable energy technologies (e.g., photovoltaic arrays, wind turbines, microturbines, reciprocating engines, fuel cells, combustion turbines, and steam turbines); energy storage devices (e.g., batteries and flywheels); and combined heat and power systems.

  15. Model Predictive Control-based Optimal Coordination of Distributed Energy Resources

    SciTech Connect (OSTI)

    Mayhorn, Ebony T.; Kalsi, Karanjit; Lian, Jianming; Elizondo, Marcelo A.

    2013-01-07

    Distributed energy resources, such as renewable energy resources (wind, solar), energy storage and demand response, can be used to complement conventional generators. The uncertainty and variability due to high penetration of wind makes reliable system operations and controls challenging, especially in isolated systems. In this paper, an optimal control strategy is proposed to coordinate energy storage and diesel generators to maximize wind penetration while maintaining system economics and normal operation performance. The goals of the optimization problem are to minimize fuel costs and maximize the utilization of wind while considering equipment life of generators and energy storage. Model predictive control (MPC) is used to solve a look-ahead dispatch optimization problem and the performance is compared to an open loop look-ahead dispatch problem. Simulation studies are performed to demonstrate the efficacy of the closed loop MPC in compensating for uncertainties and variability caused in the system.

  16. Model Predictive Control-based Optimal Coordination of Distributed Energy Resources

    SciTech Connect (OSTI)

    Mayhorn, Ebony T.; Kalsi, Karanjit; Lian, Jianming; Elizondo, Marcelo A.

    2013-04-03

    Distributed energy resources, such as renewable energy resources (wind, solar), energy storage and demand response, can be used to complement conventional generators. The uncertainty and variability due to high penetration of wind makes reliable system operations and controls challenging, especially in isolated systems. In this paper, an optimal control strategy is proposed to coordinate energy storage and diesel generators to maximize wind penetration while maintaining system economics and normal operation performance. The goals of the optimization problem are to minimize fuel costs and maximize the utilization of wind while considering equipment life of generators and energy storage. Model predictive control (MPC) is used to solve a look-ahead dispatch optimization problem and the performance is compared to an open loop look-ahead dispatch problem. Simulation studies are performed to demonstrate the efficacy of the closed loop MPC in compensating for uncertainties and variability caused in the system.

  17. System Integration of Distributed Power for Complete Building Systems: Phase 1 Report

    SciTech Connect (OSTI)

    Kramer, R.

    2003-12-01

    This report describes NiSource Energy Technologies Inc.'s base year of a planned 3-year effort to advance distributed power development, deployment, and integration. Its long-term goal is to design ways to extend distributed generation into the physical design and controls of buildings. NET worked to meet this goal through advances in the implementation and control of CHP systems in end-user environments and a further understanding of electric interconnection and siting issues. Important results from the first year were a survey of the state of the art of interconnection issues associated with distributed generation, a survey of the local zoning requirements for the NiSource service territory, and the acquisition of data about the operation, reliability, interconnection, and performance of CHP systems and components of two test sites.

  18. National Laboratories' Energy Technologies and System Solutions...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Laboratories' Energy Technologies and System Solutions Center Director - Sandia Energy Energy Search Icon Sandia Home Locations ... Nuclear Fuel Cycle Defense Waste Management Programs ...

  19. Improved Concentrating Solar Power Systems - Energy Innovation...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Thermal Solar Thermal Energy Storage Energy Storage Find More Like This Return to Search Improved Concentrating Solar Power Systems National Renewable Energy Laboratory Contact ...

  20. Energy Department Issues Green Building Certification System...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Department Issues Green Building Certification System Final Rule to Support Increased Energy Measurement and Efficient Building Design Energy Department Issues Green...

  1. Maricopa County- Renewable Energy Systems Zoning Ordinance

    Broader source: Energy.gov [DOE]

    The Maricopa County Zoning Ordinance contains provisions for siting renewable energy systems. The ordinance defines renewable energy as "energy derived primarily from sources other than fossil...

  2. Energy.gov Content Management System Webforms

    Broader source: Energy.gov [DOE]

    For Office of Energy Efficiency and Renewable Energy (EERE) websites, Energy.gov's content management system (CMS) has the ability to create webforms.

  3. NREL: Energy Systems Integration - Partnerships

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Partnerships Watch how NREL is partnering with SolarCity to study how to better integrate rooftop solar onto the grid. Industry, academia, and government entities are working together with NREL at the Energy Systems Integration Facility (ESIF) on transformative projects to optimize the way we use, produce, and deliver energy. Learn more about how to partner with NREL at the ESIF. Current Partners Our current partners include the following organizations, among others: Abengoa Solar Advanced

  4. Elimination of direct current distribution systems from new generating stations

    SciTech Connect (OSTI)

    Jancauskas, J.R.

    1996-12-31

    This paper advances the concept that it may be both possible and advantageous to eliminate the traditional direct current distribution system from a new generating station. The latest developments in uninterruptible power supply (UPS) technology are what have made this option technically feasible. A traditional dc distribution system will be compared to an ac distribution system supplied by a UPS to investigate the merits of the proposed approach.

  5. ENERGY STAR Webinar: ENERGY STAR and Green Building Rating Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ENERGY STAR and Green Building Rating Systems ENERGY STAR Webinar: ENERGY STAR and Green Building Rating Systems October 13, 2015 2:00PM to 3:00PM EDT Online Hosted by the U.S....

  6. Electrical Energy Storage for Renewable Energy Systems

    SciTech Connect (OSTI)

    Helms, C. R.; Cho, K. J.; Ferraris, John; Balkus, Ken; Chabal, Yves; Gnade, Bruce; Rotea, Mario; Vasselli, John

    2012-08-31

    This program focused on development of the fundamental understanding necessary to significantly improve advanced battery and ultra-capacitor materials and systems to achieve significantly higher power and energy density on the one hand, and significantly lower cost on the other. This program spanned all the way from atomic-level theory, to new nanomaterials syntheses and characterization, to system modeling and bench-scale technology demonstration. Significant accomplishments are detailed in each section. Those particularly noteworthy include: • Transition metal silicate cathodes with 2x higher storage capacity than commercial cobalt oxide cathodes were demonstrated. • MnO₂ nanowires, which are a promising replacement for RuO₂, were synthesized • PAN-based carbon nanofibers were prepared and characterized with an energy density 30-times higher than current ultracapacitors on the market and comparable to lead-acid batteries • An optimization-based control strategy for real-time power management of battery storage in wind farms was developed and demonstrated. • PVDF films were developed with breakdown strengths of > 600MVm⁻¹, a maximum energy density of approximately 15 Jcm⁻³, and an average dielectric constant of 9.8 (±1.2). Capacitors made from these films can support a 10-year lifetime operating at an electric field of 200 MV m⁻¹. This program not only delivered significant advancements in fundamental understanding and new materials and technology, it also showcased the power of the cross-functional, multi-disciplinary teams at UT Dallas and UT Tyler for such work. These teams are continuing this work with other sources of funding from both industry and government.

  7. U.S. Energy Information Administration | Annual Coal Distribution Report 2014

    U.S. Energy Information Administration (EIA) Indexed Site

    Origin State _______________________________________________________________________________________________________________________________ 1 U.S. Energy Information Administration | Annual Coal Distribution Report 2014 U.S. Energy Information Administration | Annual Coal Distribution Report 2014 Alabama _______________________________________________________________________________________________________________________________ Table OS-1. Domestic Coal Distribution, by Origin State, 2014

  8. PIA - Fossil Energy Web System (FEWEB) | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Fossil Energy Web System (FEWEB) PIA - Fossil Energy Web System (FEWEB) PIA - Fossil Energy Web System (FEWEB) PDF icon PIA - Fossil Energy Web System (FEWEB) More Documents & Publications Integrated Safety Management Workshop Registration, PIA, Idaho National Laboratory PIA - WEB Physical Security Major Application PIA - WEB Unclassified Business Operations General Support

  9. 9-26 QER Report: Energy Transmission, Storage, and Distribution...

    Energy Savers [EERE]

    ANALYTICAL AND STAKEHOLDER PROCESS 10-2 QER Report: Energy ... QER Systems Analysis The QER is a policy document based on ... as well as the Natural Gas, Liquid Fuels, and ...

  10. %T Advanced Distribution Management Systems for Grid Modernization...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Advanced Distribution Management Systems for Grid ... we present a lightweight, low-level threading and tasking ... also decrease their criteria pollutant emissions, ...

  11. Distribution System planning for Smart Grids, ForskEL (Smart...

    Open Energy Info (EERE)

    Name Distribution System planning for Smart Grids, ForskEL Country Denmark Coordinates 56.26392, 9.501785 Loading map... "minzoom":false,"mappingservice":"googlemaps3","type...

  12. Proliferation resistance of advanced nuclear energy systems ...

    Office of Scientific and Technical Information (OSTI)

    Proliferation resistance of advanced nuclear energy systems Citation Details In-Document Search Title: Proliferation resistance of advanced nuclear energy systems A methodology for ...

  13. Independent Power Systems | Open Energy Information

    Open Energy Info (EERE)

    Systems is an independent energy consultancy specialising in reducing client energy and environmental costs. References: Independent Power Systems1 This article is a stub. You...

  14. Energy Department Issues Green Building Certification System...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Green Building Certification System Final Rule to Support Increased Energy Measurement and Efficient Building Design Energy Department Issues Green Building Certification System ...

  15. Sandia Energy - Tutorial on PV System Modeling

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Tutorial on PV System Modeling Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics PV Modeling & Analysis Tutorial on PV System Modeling Tutorial on PV...

  16. Systems Integration | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Systems Integration Systems Integration Hawaii DREAMS of New Solar Technologies Hawaii DREAMS of New Solar Technologies Read more Plug and Play Solar PV for American Homes Plug and Play Solar PV for American Homes Read more Watt-Sun: A Multi-Scale, Multi-Modal, Machine-Learning Solar Forecasting Technology Watt-Sun: A Multi-Scale, Multi-Modal, Machine-Learning Solar Forecasting Technology Read more High PV Penetration with Energy Storage in Flagstaff, AZ High PV Penetration with Energy Storage

  17. NREL: Energy Systems Integration - Asetek

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Asetek Photo of a computer rack with dozens of protruding wires. NREL is quantifying energy savings from the Asetek rack under a real workload by comparing total power input to the system with total heat removed by liquid and air. Photo by Dennis Schroeder, NREL To measure the energy savings, performance, and reliability of a warm-water direct-to-chip liquid-cooling retrofit solution for data centers, an Asetek RackCDU liquid-cooling system was installed as a retrofit to an existing air-cooled

  18. Fenestration systems as luminaries of varying candlepower distribution

    SciTech Connect (OSTI)

    Papamichael, K.

    1990-10-01

    Simulation of the performance of electric lighting systems has been successfully handled using computers, since electric lighting systems have a constant luminous output with respect to intensity and spatial distribution, usually referred to as candlepower distribution, which can be measured and used conveniently. This paper describes an approach of treating fenestration systems as luminaries of varying candlepower distribution, so that the determination of their luminous performance becomes consistent with that of electric lighting systems. The transmitted distribution through fenestration systems due to radiation from the sun, sky and ground is determined from their bidirectional transmittance and the luminance distribution of the sources of radiation. The approach is demonstrated using the experimentally determined bidirectional transmittance of a diffusive sample under the uniform, overcast and clear sky luminance distributions. 6 refs., 14 figs.

  19. Track A - Energy Systems Innovations | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    A - Energy Systems Innovations Track A - Energy Systems Innovations Presentations from Track A, Energy Systems Innovations, of the U.S. Department of Energy Building America program's 2012 Residential Energy Efficiency Stakeholder Meeting are provided below as Adobe Acrobat PDFs. These presentations for this track covered the following topics: Space Conditioning and Hot Water Systems; Options for Insulating Foundations; Mini-split Systems; Heat Pump Water Heaters; Hydronic Heating Control

  20. Emerging Issues and Challenges with Integrating High Levels of Solar into the Distribution System

    Broader source: Energy.gov [DOE]

    Wide use of advanced inverters could double the electricity-distribution system’s hosting capacity for distributed PV at low costs—from about 170 GW to 350 GW (see Palmintier et al. 2016). At the distribution system level, increased variable generation due to high penetrations of distributed PV (typically rooftop and smaller ground-mounted systems) could challenge the management of distribution voltage, potentially increase wear and tear on electromechanical utility equipment, and complicate the configuration of circuit-breakers and other protection systems—all of which could increase costs, limit further PV deployment, or both. However, improved analysis of distribution system hosting capacity—the amount of distributed PV that can be interconnected without changing the existing infrastructure or prematurely wearing out equipment—has overturned previous rule-of-thumb assumptions such as the idea that distributed PV penetrations higher than 15% require detailed impact studies. For example, new analysis suggests that the hosting capacity for distributed PV could rise from approximately 170 GW using traditional inverters to about 350 GW with the use of advanced inverters for voltage management, and it could be even higher using accessible and low-cost strategies such as careful siting of PV systems within a distribution feeder and additional minor changes in distribution operations. Also critical to facilitating distributed PV deployment is the improvement of interconnection processes, associated standards and codes, and compensation mechanisms so they embrace PV’s contributions to system-wide operations. Ultimately SunShot-level PV deployment will require unprecedented coordination of the historically separate distribution and transmission systems along with incorporation of energy storage and “virtual storage,” which exploits improved management of electric vehicle charging, building energy systems, and other large loads. Additional analysis and innovation are needed in every area to realize the potential of this integrated vision.