National Library of Energy BETA

Sample records for regional reliability requirements

  1. Washington DC Reliability Requirements and the Need to Operate...

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

    Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) ...

  2. Washington DC Reliability Requirements and the Need to Operate Mirant's

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

    Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) | Department of Energy Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Washington DC Reliability Requirements and the Need to Operate Mirant's Potomac River Generation Station to Support Local Area Reliability (Oak Ridge National Laboratory 2005) Pursuant to

  3. Reliability and availability requirements analysis for DEMO: fuel cycle system

    SciTech Connect (OSTI)

    Pinna, T.; Borgognoni, F.

    2015-03-15

    The Demonstration Power Plant (DEMO) will be a fusion reactor prototype designed to demonstrate the capability to produce electrical power in a commercially acceptable way. Two of the key elements of the engineering development of the DEMO reactor are the definitions of reliability and availability requirements (or targets). The availability target for a hypothesized Fuel Cycle has been analysed as a test case. The analysis has been done on the basis of the experience gained in operating existing tokamak fusion reactors and developing the ITER design. Plant Breakdown Structure (PBS) and Functional Breakdown Structure (FBS) related to the DEMO Fuel Cycle and correlations between PBS and FBS have been identified. At first, a set of availability targets has been allocated to the various systems on the basis of their operating, protection and safety functions. 75% and 85% of availability has been allocated to the operating functions of fuelling system and tritium plant respectively. 99% of availability has been allocated to the overall systems in executing their safety functions. The chances of the systems to achieve the allocated targets have then been investigated through a Failure Mode and Effect Analysis and Reliability Block Diagram analysis. The following results have been obtained: 1) the target of 75% for the operations of the fuelling system looks reasonable, while the target of 85% for the operations of the whole tritium plant should be reduced to 80%, even though all the tritium plant systems can individually reach quite high availability targets, over 90% - 95%; 2) all the DEMO Fuel Cycle systems can reach the target of 99% in accomplishing their safety functions. (authors)

  4. NBP RFI: Communications Requirements- Comments of Lake Region...

    Energy Savers [EERE]

    Lake Region Electric Cooperative- Minnesota NBP RFI: Communications Requirements- Comments of Lake Region Electric Cooperative- Minnesota Comments of Lake Region Electric ...

  5. The Role of Demand Resources In Regional Transmission Expansion Planning and Reliable Operations

    SciTech Connect (OSTI)

    Kirby, Brendan J

    2006-07-01

    Investigating the role of demand resources in regional transmission planning has provided mixed results. On one hand there are only a few projects where demand response has been used as an explicit alternative to transmission enhancement. On the other hand there is a fair amount of demand response in the form of energy efficiency, peak reduction, emergency load shedding, and (recently) demand providing ancillary services. All of this demand response reduces the need for transmission enhancements. Demand response capability is typically (but not always) factored into transmission planning as a reduction in the load which must be served. In that sense demand response is utilized as an alternative to transmission expansion. Much more demand response is used (involuntarily) as load shedding under extreme conditions to prevent cascading blackouts. The amount of additional transmission and generation that would be required to provide the current level of reliability if load shedding were not available is difficult to imagine and would be impractical to build. In a very real sense demand response solutions are equitably treated in every region - when proposed, demand response projects are evaluated against existing reliability and economic criteria. The regional councils, RTOs, and ISOs identify needs. Others propose transmission, generation, or responsive load based solutions. Few demand response projects get included in transmission enhancement plans because few are proposed. But this is only part of the story. Several factors are responsible for the current very low use of demand response as a transmission enhancement alternative. First, while the generation, transmission, and load business sectors each deal with essentially the same amount of electric power, generation and transmission companies are explicitly in the electric power business but electricity is not the primary business focus of most loads. This changes the institutional focus of each sector. Second

  6. NBP RFI: Communications Requirements- Comments of Lake Region Electric

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

    Cooperative- Minnesota | Department of Energy Lake Region Electric Cooperative- Minnesota NBP RFI: Communications Requirements- Comments of Lake Region Electric Cooperative- Minnesota Comments of Lake Region Electric Cooperative- Minnesota on Implementing the National Broadband Plan by Studying the Communications Requirements of Electric Utilities to Inform Federal Smart Grid Policy NBP RFI: Communications Requirements- Comments of Lake Region Electric Cooperative- Minnesota (133.57 KB) More

  7. Baseload gas turbine to meet utility requirements for reliability and availability

    SciTech Connect (OSTI)

    Grevstad, P.E.; Smith, M.J.; Duncan, R.L.

    1982-04-01

    The coal gasifier-gas turbine, combined cycle is described as a superior baseload electric generating system. It promises lower fuel cost, lower operating and maintenance cost, and superior siting and environmental characteristics over conventional steam systems with flue gas clean up and fluidized bed combined cycle systems. Two major new components are required: 1) the coal gasifier, and 2) the baseload gas turbine. 10 refs.

  8. Use of Frequency Response Metrics to Assess the Planning and Operating Requirements for Reliable Integration of Variable Renewable Generation

    SciTech Connect (OSTI)

    Eto, Joseph H.; Undrill, John; Mackin, Peter; Daschmans, Ron; Williams, Ben; Haney, Brian; Hunt, Randall; Ellis, Jeff; Illian, Howard; Martinez, Carlos; O'Malley, Mark; Coughlin, Katie; LaCommare, Kristina Hamachi

    2010-12-20

    An interconnected electric power system is a complex system that must be operated within a safe frequency range in order to reliably maintain the instantaneous balance between generation and load. This is accomplished by ensuring that adequate resources are available to respond to expected and unexpected imbalances and restoring frequency to its scheduled value in order to ensure uninterrupted electric service to customers. Electrical systems must be flexible enough to reliably operate under a variety of"change" scenarios. System planners and operators must understand how other parts of the system change in response to the initial change, and need tools to manage such changes to ensure reliable operation within the scheduled frequency range. This report presents a systematic approach to identifying metrics that are useful for operating and planning a reliable system with increased amounts of variable renewable generation which builds on existing industry practices for frequency control after unexpected loss of a large amount of generation. The report introduces a set of metrics or tools for measuring the adequacy of frequency response within an interconnection. Based on the concept of the frequency nadir, these metrics take advantage of new information gathering and processing capabilities that system operators are developing for wide-area situational awareness. Primary frequency response is the leading metric that will be used by this report to assess the adequacy of primary frequency control reserves necessary to ensure reliable operation. It measures what is needed to arrest frequency decline (i.e., to establish frequency nadir) at a frequency higher than the highest set point for under-frequency load shedding within an interconnection. These metrics can be used to guide the reliable operation of an interconnection under changing circumstances.

  9. Reliability Engineering

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

    LA-UR 15-27450 This document is approved for public release; further dissemination unlimited Reliability Engineering Reliability Engineering Current practice in reliability is ...

  10. wind-turbine fleet reliability

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

    wind-turbine fleet reliability - Sandia Energy Energy Search Icon Sandia Home Locations ... SunShot Grand Challenge: Regional Test Centers wind-turbine fleet reliability Home...

  11. ,"Table 3a. January Monthly Peak Hour Demand, Actual and Projected by North American Electric Reliability Council Region, "

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

    3a. January Monthly Peak Hour Demand, Actual and Projected by North American Electric Reliability Council Region, " ,"2005 and Projected 2006 through 2010 " ,"(Megawatts and 2005 Base Year)" ,"Projected Monthly Base","Year","Contiguous U.S.","Eastern Power Grid",,,,,,"Texas Power Grid","Western Power Grid"

  12. Establishing a reliable source of fuel for Department of Defense requirements: Effective petroleum, oil, and lubricant financial managment. Final report

    SciTech Connect (OSTI)

    Scherer, T.F.

    1981-12-01

    The Defense Fuel Supply Center (DFSC) is the management and procurement agency for petroleum for the Department of Defense. Its mission is to procure refined petroleum products to meet military service requirements worldwide and federal requirements within the United States. The procurement options analyzed are divided into two categories -- direct and indirect methods of acquiring products. Through the analysis discussed, it will be shown that the only viable solution to DFSC's problem lies in purchasing the desired quantities using direct acquisition methods by reducing the cost incurred to a refiner for supplying military products.

  13. Reliability Engineering

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

    LA-UR 15-27450 This document is approved for public release; further dissemination unlimited Reliability Engineering Reliability Engineering Current practice in reliability is often fragmented, does not cover the full system lifecycle * Reliability needs to be addressed in design, development, and operational life * Reliability analysis should integrate information from components and systems Integrate proven reliability methods with world-class statistical science * Use methods and tools

  14. ,"Table 3a. January Monthly Peak Hour Demand, Actual and Projected by North American Electric Reliability Corporation Region, "

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

    6" ,"Released: February 7, 2008" ,"Next Update: October 2008" ,"Table 3a. January Monthly Peak Hour Demand, Actual and Projected by North American Electric Reliability Corporation Region, " ,"2006 and Projected 2007 through 2011 " ,"(Megawatts and 2006 Base Year)" ,"Projected Monthly Base","Year","Contiguous U.S.","Eastern Power Grid",,,,,,"Texas Power Grid","Western Power Grid"

  15. Unmanned Aerial Vehicle (UAV) Dynamic-Tracking Directional Wireless Antennas for Low Powered Applications that Require Reliable Extended Range Operations in Time Critical Scenarios

    SciTech Connect (OSTI)

    Scott G. Bauer; Matthew O. Anderson; James R. Hanneman

    2005-10-01

    The proven value of DOD Unmanned Aerial Vehicles (UAVs) will ultimately transition to National and Homeland Security missions that require real-time aerial surveillance, situation awareness, force protection, and sensor placement. Public services first responders who routinely risk personal safety to assess and report a situation for emergency actions will likely be the first to benefit from these new unmanned technologies. ‘Packable’ or ‘Portable’ small class UAVs will be particularly useful to the first responder. They require the least amount of training, no fixed infrastructure, and are capable of being launched and recovered from the point of emergency. All UAVs require wireless communication technologies for real- time applications. Typically on a small UAV, a low bandwidth telemetry link is required for command and control (C2), and systems health monitoring. If the UAV is equipped with a real-time Electro-Optical or Infrared (EO/Ir) video camera payload, a dedicated high bandwidth analog/digital link is usually required for reliable high-resolution imagery. In most cases, both the wireless telemetry and real-time video links will be integrated into the UAV with unity gain omni-directional antennas. With limited on-board power and payload capacity, a small UAV will be limited with the amount of radio-frequency (RF) energy it transmits to the users. Therefore, ‘packable’ and ‘portable’ UAVs will have limited useful operational ranges for first responders. This paper will discuss the limitations of small UAV wireless communications. The discussion will present an approach of utilizing a dynamic ground based real-time tracking high gain directional antenna to provide extend range stand-off operation, potential RF channel reuse, and assured telemetry and data communications from low-powered UAV deployed wireless assets.

  16. Proposed changes to generating capacity 1980-1989 for the contiguous United States: as projected by the Regional Electric Reliability Councils in their April 1, 1980 long-range coordinated planning reports to the Department of Energy

    SciTech Connect (OSTI)

    1980-12-01

    The changes in generating capacity projected for 1980 to 1989 are summarized. Tabulated data provide summaries to the information on projected generating unit construction, retirements, and changes, in several different categories and groupings. The new generating units to be completed by the end of 1989 total 699, representing 259,490 megawatts. This total includes 10 wind power and one fuel cell installations totaling 48.5 MW to be completed by the end of 1989. There are 321 units totaling 13,222 MW to be retired. There are capacity changes due to upratings and deratings. Summary data are presented for: total requirement for electric energy generation for 1985; hydroelectric energy production for 1985; nuclear energy production for 1985; geothermal and other energy production for 1985; approximate non-fossil generation for 1985; range of fossil energy requirements for 1985; actual fossil energy sources 1974 to 1979; estimated range of fossil fuel requirements for 1985; coal capacity available in 1985; and computation of fuel use in 1985. Power plant capacity factors are presented. Extensive data on proposed generating capacity changes by individual units in the 9 Regional Electric Reliability Councils are presented.

  17. Continuous Reliability Enhancement for Wind project

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

    ... SunShot Grand Challenge: Regional Test Centers Continuous Reliability Enhancement for Wind project HomeTag:Continuous Reliability Enhancement for Wind project The CREW public ...

  18. Hawaii electric system reliability.

    SciTech Connect (OSTI)

    Silva Monroy, Cesar Augusto; Loose, Verne William

    2012-09-01

    This report addresses Hawaii electric system reliability issues; greater emphasis is placed on short-term reliability but resource adequacy is reviewed in reference to electric consumers' views of reliability %E2%80%9Cworth%E2%80%9D and the reserve capacity required to deliver that value. The report begins with a description of the Hawaii electric system to the extent permitted by publicly available data. Electrical engineering literature in the area of electric reliability is researched and briefly reviewed. North American Electric Reliability Corporation standards and measures for generation and transmission are reviewed and identified as to their appropriateness for various portions of the electric grid and for application in Hawaii. Analysis of frequency data supplied by the State of Hawaii Public Utilities Commission is presented together with comparison and contrast of performance of each of the systems for two years, 2010 and 2011. Literature tracing the development of reliability economics is reviewed and referenced. A method is explained for integrating system cost with outage cost to determine the optimal resource adequacy given customers' views of the value contributed by reliable electric supply. The report concludes with findings and recommendations for reliability in the State of Hawaii.

  19. Transmission Reliability Program 2015 Reliability & Markets Peer...

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

    Program 2015 Reliability & Markets Peer Review Materials Available Transmission Reliability Program 2015 Reliability & Markets Peer Review Materials Available September 16, 2015 -...

  20. A thermal battery operational reliability evaluation study

    SciTech Connect (OSTI)

    Herzberg, M.; Jaeger, M.; Shalev, H.

    1994-12-31

    A thermal battery is a one shot device. Its overall reliability is given as the product of its technical and operational reliability. This work evaluates operational reliability. The operational reliability for various performance requirements was estimated by analyzing data received from qualification tests of a certain thermal battery. A lower bound of its operational reliability was evaluated by use of the statistical tolerance method for each specific electrical performance requirement. A conservative overall lower bound for the operational reliability of the thermal battery was calculated as the product of the individual operational reliability estimates corresponding to each performance requirement.

  1. Value-based reliability transmission planning

    SciTech Connect (OSTI)

    Dalton, J.G. III; Garrison, D.L.; Fallon, C.M.

    1996-08-01

    This paper presents a new value-based reliability planning (VBRP) process proposed for planning Duke Power Company`s (DPC) regional transmission system. All transmission served customers are fed from DPC`s regional transmission system which consists of a 44-kV predominantly radial system and a 100-kV predominantly non-radial system. In the past, any single contingency that could occur during system peak conditions and cause a thermal overload required the overloaded facility to be upgraded, regardless of the costs or the likelihood of the overload occurring. The new VBRP process is based on transmission system reliability evaluation and includes the following important elements: (1) a ten-year historical data base describing the probabilities of forced outages for lines and transformers; (2) a five-year average load duration curve describing the probability of an overload should a contingency occur; (3) a customer outage cost data base; (4) and probabilistic techniques. The new process attempts to balance the costs of improving service reliability with the benefits or value that these improvements bring to these customers. The objective is to provide the customers their required level of reliability while minimizing the Total Cost of their electric service.

  2. Photovoltaic module reliability workshop

    SciTech Connect (OSTI)

    Mrig, L.

    1990-01-01

    The paper and presentations compiled in this volume form the Proceedings of the fourth in a series of Workshops sponsored by Solar Energy Research Institute (SERI/DOE) under the general theme of photovoltaic module reliability during the period 1986--1990. The reliability Photo Voltaic (PV) modules/systems is exceedingly important along with the initial cost and efficiency of modules if the PV technology has to make a major impact in the power generation market, and for it to compete with the conventional electricity producing technologies. The reliability of photovoltaic modules has progressed significantly in the last few years as evidenced by warranties available on commercial modules of as long as 12 years. However, there is still need for substantial research and testing required to improve module field reliability to levels of 30 years or more. Several small groups of researchers are involved in this research, development, and monitoring activity around the world. In the US, PV manufacturers, DOE laboratories, electric utilities and others are engaged in the photovoltaic reliability research and testing. This group of researchers and others interested in this field were brought together under SERI/DOE sponsorship to exchange the technical knowledge and field experience as related to current information in this important field. The papers presented here reflect this effort.

  3. North American Electric Reliability Corporation (NERC): Reliability

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

    Considerations from the Integration of Smart Grid | Department of Energy (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid. NERC develops and enforces Reliability Standards; assesses adequacy annually via a ten-year forcast and winter and

  4. North American Electric Reliability Corporation (NERC): Reliability...

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

    Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric ...

  5. Sandia Energy - Inverter Reliability Program

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

    Inverter Reliability Program Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics PV Systems Reliability Inverter Reliability Program Inverter Reliability...

  6. Subsea pipeline isolation systems: Reliability and costs

    SciTech Connect (OSTI)

    Masheder, R.R.

    1996-08-01

    Since the Piper Alpha disaster, more than 80 subsea isolation systems (SSIS) have been installed in subsea gas and oil pipelines in the U.K. continental shelf at an estimated cost in the region of {Brit_pounds}500 million. The reliability and costs of these installations have now been assessed between Dec. 1992 and Oct. 1993. This assessment was based upon comprehensive reliability and cost databases which were established so that the studies could be based upon factual information in order to obtain a current status as required by the sponsoring group. The study consultants report findings have now been consolidated into a report by the UKOOA Pipeline Valve Work Group. Probabilities of failure for different types of valves and systems have been assessed and expenditures broken down and compared. The results of the studies and the conclusions drawn by UKOOA Pipeline Valve Group and the HSE Offshore Safety Division are presented in this paper.

  7. Blade Reliability Collaborative

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

    Reliability Collaborative - Sandia Energy Energy Search Icon Sandia Home Locations Contact ... Twitter Google + Vimeo GovDelivery SlideShare Blade Reliability Collaborative Home...

  8. PV Reliability & Performance Model

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

    Reliability & Performance Model - Sandia Energy Energy Search Icon Sandia Home Locations ... Twitter Google + Vimeo GovDelivery SlideShare PV Reliability & Performance Model Home...

  9. Human Reliability Assessment

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

    ... Signup SlideShare Human Reliability Assessment HomeStationary PowerNuclear EnergyNuclear Energy Safety TechnologiesRisk and Safety AssessmentHuman Reliability Assessment ...

  10. Human Reliability Program Overview

    SciTech Connect (OSTI)

    Bodin, Michael

    2012-09-25

    This presentation covers the high points of the Human Reliability Program, including certification/decertification, critical positions, due process, organizational structure, program components, personnel security, an overview of the US DOE reliability program, retirees and academia, and security program integration.

  11. Human Reliability Program Handbook

    Broader source: Energy.gov [DOE]

    The Human Reliability Program is a security and safety reliability program designed to ensure that individuals who occupy positions affording access to certain materials, nuclear explosive devices, facilities, and programs meet the highest standards of reliability and physical and mental suitability.

  12. Microsoft Word - Pv Reliability Paper.doc

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

    RELIABILITY AND AVAILABILITY ANALYSIS OF A FIELDED PHOTOVOLTAIC SYSTEM Elmer Collins, Michael Dvorack, Jeff Mahn, Michael Mundt, and Michael Quintana Sandia National Laboratories PO Box 5800, Albuquerque, New Mexico, 87185-1033 ABSTRACT System level reliability and availability estimates are required to facilitate cost tradeoff studies associated with competing photovoltaic systems. Estimates of reliability are necessary in developing maintenance cost projections over the system lifetime.

  13. NREL: Performance and Reliability R&D - PV Module Reliability...

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

    Performance Reliability R&D Photovoltaics Research Performance Reliability R and D Printable Version PV Module Reliability Workshop NREL hosts an annual Photovoltaic Module...

  14. Lifetime and Reliability

    Broader source: Energy.gov [DOE]

    A DOE Solid-State Lighting Program technology fact sheet on lifetime, reliability, and failure as related to LED-based products.

  15. Medical Aspects of Reliability

    SciTech Connect (OSTI)

    Atencio, Julian J.

    2014-05-05

    This presentation covers the medical evaluation as part of a human reliability program, particularly the various medical qualifications and potential disqualifiers.

  16. Lifetime and Reliability

    SciTech Connect (OSTI)

    2013-08-01

    Solid-state lighting program technology fact sheet that discusses failure, lifetime, and reliability as they relate to LED-based products.

  17. Reliability Question Comment

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

    Reliability-Question-Comment Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives...

  18. Photovoltaic performance and reliability workshop

    SciTech Connect (OSTI)

    Kroposki, B.

    1996-10-01

    This proceedings is the compilation of papers presented at the ninth PV Performance and Reliability Workshop held at the Sheraton Denver West Hotel on September 4--6, 1996. This years workshop included presentations from 25 speakers and had over 100 attendees. All of the presentations that were given are included in this proceedings. Topics of the papers included: defining service lifetime and developing models for PV module lifetime; examining and determining failure and degradation mechanisms in PV modules; combining IEEE/IEC/UL testing procedures; AC module performance and reliability testing; inverter reliability/qualification testing; standardization of utility interconnect requirements for PV systems; need activities to separate variables by testing individual components of PV systems (e.g. cells, modules, batteries, inverters,charge controllers) for individual reliability and then test them in actual system configurations; more results reported from field experience on modules, inverters, batteries, and charge controllers from field deployed PV systems; and system certification and standardized testing for stand-alone and grid-tied systems.

  19. Joint transmission system projects to improve system reliability

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

    County PUD, 425-783-8444 Joint transmission system projects to improve system reliability First major regional electric grid improvements in decades prepare the area for the...

  20. Capital investment requirements for greenhouse gas emissions mitigation in power generation on near term to century time scales and global to regional spatial scales

    SciTech Connect (OSTI)

    Chaturvedi, Vaibhav; Clarke, Leon E.; Edmonds, James A.; Calvin, Katherine V.; Kyle, G. Page

    2014-11-01

    Electrification plays a crucial role in cost-effective greenhouse gas emissions mitigation strategies. Such strategies in turn carry implications for financial capital markets. This paper explores the implication of climate mitigation policy for capital investment demands by the electric power sector on decade to century time scales. We go further to explore the implications of technology performance and the stringency of climate policy for capital investment demands by the power sector. Finally, we discuss the regional distribution of investment demands. We find that stabilizing GHG emissions will require additional investment in the electricity generation sector over and above investments that would be need in the absence of climate policy, in the range of 16 to 29 Trillion US$ (60-110%) depending on the stringency of climate policy during the period 2015 to 2095 under default technology assumptions. This increase reflects the higher capital intensity of power systems that control emissions. Limits on the penetration of nuclear and carbon capture and storage technology could increase costs substantially. Energy efficiency improvements can reduce the investment requirement by 8 to21 Trillion US$ (default technology assumptions), depending on climate policy scenario with higher savings being obtained under the most stringent climate policy. The heaviest investments in power generation were observed in the China, India, SE Asia and Africa regions with the latter three regions dominating in the second half of the 21st century.

  1. Reliability and Safety

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE solar reliability and safety research and development (R&D) focuses on testing photovoltaic (PV) modules, inverters, and systems for long-term performance, and helping investors, consumers,...

  2. Fast, Sensitive and Reliable Hydrogen Sensor | Argonne National...

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

    Fast, Sensitive and Reliable Hydrogen Sensor Technology available for licensing Warm-up not required, and responds in less than 75 milliseconds in a 2% hydrogen atmosphere...

  3. Transmission Reliability Program 2015 Reliability & Markets Peer Review

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

    Materials Available | Department of Energy Program 2015 Reliability & Markets Peer Review Materials Available Transmission Reliability Program 2015 Reliability & Markets Peer Review Materials Available September 16, 2015 - 3:07pm Addthis The August 4-5, 2015 Reliability and Markets peer review included 16 presentations over six sessions. The Reliability and Markets activity of the Transmission Reliability Program researches, develops, and implements infrastructure to ensure electric

  4. System Reliability for LED-Based Products

    SciTech Connect (OSTI)

    Davis, J Lynn; Mills, Karmann; Lamvik, Michael; Yaga, Robert; Shepherd, Sarah D; Bittle, James; Baldasaro, Nick; Solano, Eric; Bobashev, Georgiy; Johnson, Cortina; Evans, Amy

    2014-04-07

    Results from accelerated life tests (ALT) on mass-produced commercially available 6” downlights are reported along with results from commercial LEDs. The luminaires capture many of the design features found in modern luminaires. In general, a systems perspective is required to understand the reliability of these devices since LED failure is rare. In contrast, components such as drivers, lenses, and reflector are more likely to impact luminaire reliability than LEDs.

  5. Grid Performance and Reliability | Department of Energy

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

    Systems Integration » Grid Performance and Reliability Grid Performance and Reliability 2 way power flow orange2.png As the solar industry moves towards achieving the SunShot Initiative goals, the electric power system must evolve to handle large-scale changes in transmission and distribution (T&D) planning and operations in order to accommodate increasing penetrations of distributed PV systems. Effectively interconnecting variable PV generation requires forward thinking and dynamic

  6. NREL: Performance and Reliability R&D - PV Module Reliability...

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

    PV Module Reliability Workshop NREL hosts an annual Photovoltaic Module Reliability Workshop (PVMRW) so that solar technology experts can share information leading to the ...

  7. 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...

  8. Gearbox Reliability Collaborative Update (Presentation)

    SciTech Connect (OSTI)

    Sheng, S.

    2013-10-01

    This presentation was given at the Sandia Reliability Workshop in August 2013 and provides information on current statistics, a status update, next steps, and other reliability research and development activities related to the Gearbox Reliability Collaborative.

  9. Measurement Practices for Reliability and Power Quality

    SciTech Connect (OSTI)

    Kueck, JD

    2005-05-06

    to support activities to develop and share information among industry and regulatory participants about critical resources and practices. The toolkit has been developed by investigating the status of indices and definitions, surveying utility organizations on information sharing, and preparing summaries of reliability standards and monitoring requirements--the issues, needs, work under way, existing standards, practices and guidelines--for the following three classifications: (1) terms and definitions of reliability; (2) power quality standards, guidelines, and measurements; and (3) activities and organizations developing and sharing information on distribution reliability. As these synopses of reliability measurement practices are provided, it must be noted that an economic penalty may be associated with requiring too high a reliability level from the distribution system for all customers. It may be appropriate for the distribution system to supply only some base, generally accepted level of reliability. This base level would be adequate for the majority of customers. Users who need a higher level may find it economical to supply using distributed energy resources (DER) and other local solutions to reliability and power quality needs. Local solutions implemented by the customer may be the most cost-effective method for addressing the more stringent needs of a digital economy. These local solutions include energy storage, small distributed generators, and microgrids. This report also considers the market's role in addressing reliability issues and requirements. The customer's needs are discussed in view of issues such as power quality requirements of digital electronic equipment, the cost of outages, the cost of storage and new infrastructure, and natural gas prices. The market role in addressing these issues and requirements is explored. The economic considerations associated with the reliability issues are discussed, as well as the levels at which these economic

  10. OMB 1910-5122, Human Reliability Program - Description of Collections |

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

    Department of Energy OMB 1910-5122, Human Reliability Program - Description of Collections OMB 1910-5122, Human Reliability Program - Description of Collections Human Reliability Program Certification (DOE F 470.3). Under the Department of Energy Human Reliability Program (HRP), individuals who are applicants for or incumbents in designated positions must be evaluated to ensure that they meet the requirements for certification in the program. This form documents that each part of the

  11. Electricity Delivery and Energy Reliability

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

    Delivery and Energy Reliability The Office of Electricity Delivery and Energy Reliability ... to energy supply disruptions, such as electricity and fuel outages. * Smart Grid (14.4 ...

  12. Fast estimation of reboiler reliability

    SciTech Connect (OSTI)

    Durand, A.A.; Bonilla, M.A.O.

    1995-08-01

    The problems one faces in evaluating the reliability of a reboiler design, or in judging the effect of modifications of process conditions on reboiler operation can be complex. To carry out such evaluations, it is necessary for engineers to perform some calculations to determine: heat transfer coefficients in convection boiling; temperature difference, for the onset of nucleate boiling; heat transfer coefficients in the nucleate boiling region; critical heat flux or critical temperature difference; minimum {Delta}T for film boiling; and heat transfer coefficients for the film boiling region. There are a number of correlations, graphs, and computer programs that can be used to make these calculations. However, besides being laborious, it is still difficult to get a suitable picture of the overall problem from just this data. To simplify the process, and to have a better understanding of the problem, a map of the different boiling regions and their boundaries is presented here. With this map it is possible to locate the design or operating point of a specific kettle reboiler among all the boiling regions, enabling one to make a clearer analysis of its behavior. The parameters used to develop this map are described.

  13. Human Reliability Assessment

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

    Reliability Assessment - 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 Energy Defense Waste Management Programs Advanced

  14. Blade Reliability Collaborative

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

    Reliability Collaborative - 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 Energy Defense Waste Management Programs Advanced

  15. Materials, Reliability, & Standards

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

    Materials, Reliability, & Standards - 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 Energy Defense Waste Management

  16. MHTGR thermal performance envelopes: Reliability by design

    SciTech Connect (OSTI)

    Etzel, K.T.; Howard, W.W.; Zgliczynski, J.B.

    1992-05-01

    This document discusses thermal performance envelopes which are used to specify steady-state design requirements for the systems of the Modular High Temperature Gas-Cooled Reactor to maximize plant performance reliability with optimized design. The thermal performance envelopes are constructed around the expected operating point accounting for uncertainties in actual plant as-built parameters and plant operation. The components are then designed to perform successfully at all points within the envelope. As a result, plant reliability is maximized by accounting for component thermal performance variation in the design. The design is optimized by providing a means to determine required margins in a disciplined and visible fashion.

  17. Reliability of Electrical Interconnects (Presentation)

    SciTech Connect (OSTI)

    Devoto, D.

    2014-06-01

    This presentation discusses the status of NREL's research on the reliability of electrical interconnects.

  18. Reliability of chemical analyses of water samples

    SciTech Connect (OSTI)

    Beardon, R.

    1989-11-01

    Ground-water quality investigations require reliable chemical analyses of water samples. Unfortunately, laboratory analytical results are often unreliable. The Uranium Mill Tailings Remedial Action (UMTRA) Project`s solution to this problem was to establish a two phase quality assurance program for the analysis of water samples. In the first phase, eight laboratories analyzed three solutions of known composition. The analytical accuracy of each laboratory was ranked and three laboratories were awarded contracts. The second phase consists of on-going monitoring of the reliability of the selected laboratories. The following conclusions are based on two years experience with the UMTRA Project`s Quality Assurance Program. The reliability of laboratory analyses should not be taken for granted. Analytical reliability may be independent of the prices charged by laboratories. Quality assurance programs benefit both the customer and the laboratory.

  19. Human Reliability Program Workshop

    SciTech Connect (OSTI)

    Landers, John; Rogers, Erin; Gerke, Gretchen

    2014-05-18

    A Human Reliability Program (HRP) is designed to protect national security as well as worker and public safety by continuously evaluating the reliability of those who have access to sensitive materials, facilities, and programs. Some elements of a site HRP include systematic (1) supervisory reviews, (2) medical and psychological assessments, (3) management evaluations, (4) personnel security reviews, and (4) training of HRP staff and critical positions. Over the years of implementing an HRP, the Department of Energy (DOE) has faced various challenges and overcome obstacles. During this 4-day activity, participants will examine programs that mitigate threats to nuclear security and the insider threat to include HRP, Nuclear Security Culture (NSC) Enhancement, and Employee Assistance Programs. The focus will be to develop an understanding of the need for a systematic HRP and to discuss challenges and best practices associated with mitigating the insider threat.

  20. PV Performance and Reliability

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

    Performance and Reliability - 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 Energy Defense Waste Management Programs Advanced

  1. North American Electric Reliability Corporation (NERC): Ensuring...

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

    North American Electric Reliability Corporation (NERC): Ensuring a Reliable Bulk Electric System North American Electric Reliability Corporation (NERC): Ensuring a Reliable Bulk ...

  2. Fault Tree Reliability Analysis and Design-for-reliability

    Energy Science and Technology Software Center (OSTI)

    1998-05-05

    WinR provides a fault tree analysis capability for performing systems reliability and design-for-reliability analyses. The package includes capabilities for sensitivity and uncertainity analysis, field failure data analysis, and optimization.

  3. NREL: Performance and Reliability R&D - Photovoltaic Reliability

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

    Publications Photovoltaic Reliability Publications Sign up for NREL PV Reliability and Performance updates today! NREL publishes photovoltaic (PV) reliability journal articles, technical reports, conference papers, and outreach documents. Explore a sampling of our most recent or often-cited publications on PV reliability topics. The following NREL publications can be found on the following topics by clicking on the names of the researchers below. Accelerated Testing and Failure Analysis Nick

  4. Load Control System Reliability

    SciTech Connect (OSTI)

    Trudnowski, Daniel

    2015-04-03

    This report summarizes the results of the Load Control System Reliability project (DOE Award DE-FC26-06NT42750). The original grant was awarded to Montana Tech April 2006. Follow-on DOE awards and expansions to the project scope occurred August 2007, January 2009, April 2011, and April 2013. In addition to the DOE monies, the project also consisted of matching funds from the states of Montana and Wyoming. Project participants included Montana Tech; the University of Wyoming; Montana State University; NorthWestern Energy, Inc., and MSE. Research focused on two areas: real-time power-system load control methodologies; and, power-system measurement-based stability-assessment operation and control tools. The majority of effort was focused on area 2. Results from the research includes: development of fundamental power-system dynamic concepts, control schemes, and signal-processing algorithms; many papers (including two prize papers) in leading journals and conferences and leadership of IEEE activities; one patent; participation in major actual-system testing in the western North American power system; prototype power-system operation and control software installed and tested at three major North American control centers; and, the incubation of a new commercial-grade operation and control software tool. Work under this grant certainly supported the DOE-OE goals in the area of “Real Time Grid Reliability Management.”

  5. Reliability Compliance Specialist

    Broader source: Energy.gov [DOE]

    (See Frequently Asked Questions for more information). Where would I be working? Western Area Power Administration Desert Southwest Region Maintenance (G5000) 615 S. 43rd Avenue Phoenix, AZ 85009...

  6. Technique for Measuring Hybrid Electronic Component Reliability

    SciTech Connect (OSTI)

    Green, C.C.; Hernandez, C.L.; Hosking, F.M.; Robinson, D.; Rutherford, B.; Uribe, F.

    1999-01-01

    Materials compatibility studies of aged, engineered materials and hardware are critical to understanding and predicting component reliability, particularly for systems with extended stockpile life requirements. Nondestructive testing capabilities for component reliability would significantly enhance lifetime predictions. For example, if the detection of crack propagation through a solder joint can be demonstrated, this technique could be used to develop baseline information to statistically determine solder joint lifelengths. This report will investigate high frequency signal response techniques for nondestructively evaluating the electrical behavior of thick film hybrid transmission lines.

  7. 2015 PV Module Reliability Workshop

    Broader source: Energy.gov [DOE]

    The National Renewable Energy Laboratory hosts an annual Photovoltaic (PV) Module Reliability Workshop so that solar technology experts can share information leading to the improvement of PV module reliability. Improvements to module reliability reduce the cost of solar electricity and promotes investor confidence in the technology—both critical goals for moving PV technologies deeper into the electricity marketplace.

  8. Testing for PV Reliability (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Bansal, S.

    2014-09-01

    The DOE SUNSHOT workshop is seeking input from the community about PV reliability and how the DOE might address gaps in understanding. This presentation describes the types of testing that are needed for PV reliability and introduces a discussion to identify gaps in our understanding of PV reliability testing.

  9. The challenge of reliability in MEMS commercialization

    SciTech Connect (OSTI)

    Miller, W.M.; Tanner, D.M.; Miller, S.L.

    1998-09-01

    MicroElectroMechanical Systems (MEMS) that think, sense, act and communicate will open up a broad new array of cost-effective solutions only if MEMS is demonstrated to be sufficiently reliable. This could prove to be a major challenge if it is not addressed concurrently with technology development. There are three requirements for a valid assessment of reliability: statistical significance, identification of fundamental failure mechanisms and development of techniques for accelerating them, and valid physical models to allow prediction of failures during actual use. While these already exist for the microelectronics portion of such integrated systems, the real challenge lies in the less well-understood micromachine portions and its synergistic effects with microelectronics. This requires the elicitation of a methodology focused on MEMS reliability, which the authors discuss. A new testing and analysis infrastructure must also be developed to meet the needs of this methodology. They describe their implementation of this infrastructure and its success in addressing the three requirements for a valid reliability assessment.

  10. The Role of Advancements in Photovoltaic Efficiency, Reliability, and Costs

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

    | Department of Energy The Role of Advancements in Photovoltaic Efficiency, Reliability, and Costs The Role of Advancements in Photovoltaic Efficiency, Reliability, and Costs The Role of Advancements in Photovoltaic Efficiency, Reliability, and Costs Although tremendous progress has been made in reducing the cost of PV systems, additional LCOE reductions of 40%-50% between 2015 and 2020 will be required to reach the SunShot Initiative's targets (see Woodhouse et al. 2016). Understanding the

  11. Predicting laser weld reliability with stochastic reduced-order models. Predicting laser weld reliability

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

    Emery, John M.; Field, Richard V.; Foulk, James W.; Karlson, Kyle N.; Grigoriu, Mircea D.

    2015-05-26

    Laser welds are prevalent in complex engineering systems and they frequently govern failure. The weld process often results in partial penetration of the base metals, leaving sharp crack-like features with a high degree of variability in the geometry and material properties of the welded structure. Furthermore, accurate finite element predictions of the structural reliability of components containing laser welds requires the analysis of a large number of finite element meshes with very fine spatial resolution, where each mesh has different geometry and/or material properties in the welded region to address variability. We found that traditional modeling approaches could not bemore » efficiently employed. Consequently, a method is presented for constructing a surrogate model, based on stochastic reduced-order models, and is proposed to represent the laser welds within the component. Here, the uncertainty in weld microstructure and geometry is captured by calibrating plasticity parameters to experimental observations of necking as, because of the ductility of the welds, necking – and thus peak load – plays the pivotal role in structural failure. The proposed method is exercised for a simplified verification problem and compared with the traditional Monte Carlo simulation with rather remarkable results.« less

  12. Predicting laser weld reliability with stochastic reduced-order models. Predicting laser weld reliability

    SciTech Connect (OSTI)

    Emery, John M.; Field, Richard V.; Foulk, James W.; Karlson, Kyle N.; Grigoriu, Mircea D.

    2015-05-26

    Laser welds are prevalent in complex engineering systems and they frequently govern failure. The weld process often results in partial penetration of the base metals, leaving sharp crack-like features with a high degree of variability in the geometry and material properties of the welded structure. Furthermore, accurate finite element predictions of the structural reliability of components containing laser welds requires the analysis of a large number of finite element meshes with very fine spatial resolution, where each mesh has different geometry and/or material properties in the welded region to address variability. We found that traditional modeling approaches could not be efficiently employed. Consequently, a method is presented for constructing a surrogate model, based on stochastic reduced-order models, and is proposed to represent the laser welds within the component. Here, the uncertainty in weld microstructure and geometry is captured by calibrating plasticity parameters to experimental observations of necking as, because of the ductility of the welds, necking – and thus peak load – plays the pivotal role in structural failure. The proposed method is exercised for a simplified verification problem and compared with the traditional Monte Carlo simulation with rather remarkable results.

  13. GRANITE RELIABLE | Department of Energy

    Office of Environmental Management (EM)

    PROJECT STATISTICS: GRANITE RELIABLE PROJECT SUMMARY OWNERS BAIF Granite Holdings & Freshet Wind Energy LOCATION Coos County, New Hampshire FINANCIAL SUMMARY LOAN PROGRAM TITLE ...

  14. GRANITE RELIABLE | Department of Energy

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

    PDF icon DOE-LPOProject-PostersWINDGranite-Reliable.pdf More Documents & Publications USG OREGON EA-1801: Finding of No Significant Impact DOE-LPOOutreachLPO-OverviewCSP

  15. collecting reliability and performance data

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

    collecting reliability and performance data - Sandia Energy Energy Search Icon Sandia Home ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  16. analyzing reliability and performance data

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

    analyzing reliability and performance data - Sandia Energy Energy Search Icon Sandia Home ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  17. disseminating reliability and performance data

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

    disseminating reliability and performance data - Sandia Energy Energy Search Icon Sandia ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  18. Human Reliability Program Orientation for Employees (Technical...

    Office of Scientific and Technical Information (OSTI)

    Human Reliability Program Orientation for Employees Citation Details In-Document Search ... PERSONNEL; RELIABILITY; US DOE HRP employee orientation, human reliability Word ...

  19. NREL: Wind Research - Gearbox Reliability Collaborative

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

    In 2007, NREL initiated the Gearbox Reliability Collaborative (GRC). The project combines ... Read about: The Gearbox Reliability Collaborative Gearbox Reliability Collaborative ...

  20. Photovoltaic performance and reliability workshop

    SciTech Connect (OSTI)

    Mrig, L.

    1993-12-01

    This workshop was the sixth in a series of workshops sponsored by NREL/DOE under the general subject of photovoltaic testing and reliability during the period 1986--1993. PV performance and PV reliability are at least as important as PV cost, if not more. In the US, PV manufacturers, DOE laboratories, electric utilities, and others are engaged in the photovoltaic reliability research and testing. This group of researchers and others interested in the field were brought together to exchange the technical knowledge and field experience as related to current information in this evolving field of PV reliability. The papers presented here reflect this effort since the last workshop held in September, 1992. The topics covered include: cell and module characterization, module and system testing, durability and reliability, system field experience, and standards and codes.

  1. Distributed Generation Operational Reliability, Executive Summary...

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

    Generation Reliability and Availability Database," sponsored by Oak Ridge National ... Distributed Generation Operational Reliability and Availability Database, Final Report, ...

  2. North American Electric Reliability Corporation Interconnections...

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

    Interconnections North American Electric Reliability Corporation Interconnections Map of the North American Electric Reliability Corporation Interconnection showing the Eastern, ...

  3. Utility Static Generation Reliability

    Energy Science and Technology Software Center (OSTI)

    1993-03-05

    PICES (Probabilistic Investigation of Capacity and Energy Shortages) was developed for estimating an electric utility''s expected frequency and duration of capacity deficiencies on a daily on and off-peak basis. In addition to the system loss-of-load probability (LOLP) and loss-of-load expectation (LOLE) indices, PICES calculates the expected frequency and duration of system capacity deficiencies and the probability, expectation, and expected frequency and duration of a range of system reserve margin states. Results are aggregated and printedmore » on a weekly, monthly, or annual basis. The program employs hourly load data and either the two-state (on/off) or a more sophisticated three-state (on/partially on/fully off) generating unit representation. Unit maintenance schedules are determined on a weekly, levelized reserve margin basis. In addition to the 8760-hour annual load record, the user provides the following information for each unit: plant capacity, annual maintenance requirement, two or three-state unit failure and repair rates, and for three-state models, the partial state capacity deficiency. PICES can also supply default failure and repair rate values, based on the Edison Electric Institute''s 1979 Report on Equipment Availability for the Ten-Year Period 1968 Through 1977, for many common plant types. Multi-year analysis can be performed by specifying as input data the annual peak load growth rates and plant addition and retirement schedules for each year in the study.« less

  4. Radioisotope thermoelectric generator reliability and safety

    SciTech Connect (OSTI)

    Campbell, R.; Klein, J.

    1989-01-01

    There are numerous occasions when a planetary mission requires energy in remote areas of the solar system. Anytime power is required much beyond Mars or the Asteroid Belts, solar power is not an option. The radioisotope thermoelectric generator (RTG) was developed for such a mission requirement. It is a relatively small and lightweight power source that can produce power under adverse conditions. Just this type of source has become the backbone of the power system for far outer plant exploration. Voyagers I and II are utilizing RTGs, which will soon power the Galileo spacecraft to Jupiter and the Ulysses spacecraft to study the solar poles. The paper discusses RTG operation including thermoelectric design, converter design, general-purpose heat source; RTG reliability including design, testing, experience, and launch approval; and RTG safety issues and methods of ensuring safety.

  5. Fundamental mechanisms of micromachine reliability

    SciTech Connect (OSTI)

    DE BOER,MAARTEN P.; SNIEGOWSKI,JEFFRY J.; KNAPP,JAMES A.; REDMOND,JAMES M.; MICHALSKE,TERRY A.; MAYER,THOMAS K.

    2000-01-01

    RH up to a threshold value, depending on the coating chemistry. The mechanism for the adhesion increase beyond this threshold value is that the coupling agent reconfigures from a surface to a bulk phase (Chapter 3). To investigate the details of how the adhesion increase occurs, the authors developed the mechanics for adhesion hysteresis measurements. These revealed that near-crack tip compression is the underlying cause of the adhesion increase (Chapter 4). A vacuum deposition chamber for silane coupling agent deposition was constructed. Results indicate that vapor deposited coatings are less susceptible to degradation at high RH (Chapter 5). To address issues relating to surfaces in relative motion, a new test structure to measure friction was developed. In contrast to other surface micromachined friction test structures, uniform apparent pressure is applied in the frictional contact zone (Chapter 6). The test structure will enable friction studies over a large pressure and dynamic range. In this LDRD project, the authors established an infrastructure for MEMS adhesion and friction metrology. They then characterized in detail the performance of hydrophilic and hydrophobic films under humid conditions, and determined mechanisms which limit this performance. These studies contribute to a fundamental understanding for MEMS reliability design rules. They also provide valuable data for MEMS packaging requirements.

  6. Wind turbine reliability : a database and analysis approach.

    SciTech Connect (OSTI)

    Linsday, James; Briand, Daniel; Hill, Roger Ray; Stinebaugh, Jennifer A.; Benjamin, Allan S.

    2008-02-01

    The US wind Industry has experienced remarkable growth since the turn of the century. At the same time, the physical size and electrical generation capabilities of wind turbines has also experienced remarkable growth. As the market continues to expand, and as wind generation continues to gain a significant share of the generation portfolio, the reliability of wind turbine technology becomes increasingly important. This report addresses how operations and maintenance costs are related to unreliability - that is the failures experienced by systems and components. Reliability tools are demonstrated, data needed to understand and catalog failure events is described, and practical wind turbine reliability models are illustrated, including preliminary results. This report also presents a continuing process of how to proceed with controlling industry requirements, needs, and expectations related to Reliability, Availability, Maintainability, and Safety. A simply stated goal of this process is to better understand and to improve the operable reliability of wind turbine installations.

  7. Reliability analysis for LEB ring magnet power system in SSC

    SciTech Connect (OSTI)

    Smedley, K.

    1991-11-01

    The LEB ring magnet power system contains six subsystems, supervisory control, power supplies, regulation, DC bus, resonant cells, and fault sensing network. The system availability of the total LEB RMPS is required to be 0.999. The work in this paper is to allocate the overall LEB RMPS reliability requirement into reliability requirements for each of the subsystems and lower-tier items. The Feasibility-of-Objective technique combining with engineering experience is the key for the allocation. MIL-HDBK-217F is used to derate SCR components. 7 refs., 5 figs.

  8. communications requirements | Department of Energy

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

    Utilities to Inform Federal Smart Grid Policy Re: NBP RFI: Communications Requirements NBP RFI: Communications Requirements- Comments of Lake Region Electric Cooperative- Minnesota

  9. CERTS: Consortium for Electric Reliability Technology Solutions - Research Highlights

    SciTech Connect (OSTI)

    Eto, Joseph

    2003-07-30

    Historically, the U.S. electric power industry was vertically integrated, and utilities were responsible for system planning, operations, and reliability management. As the nation moves to a competitive market structure, these functions have been disaggregated, and no single entity is responsible for reliability management. As a result, new tools, technologies, systems, and management processes are needed to manage the reliability of the electricity grid. However, a number of simultaneous trends prevent electricity market participants from pursuing development of these reliability tools: utilities are preoccupied with restructuring their businesses, research funding has declined, and the formation of Independent System Operators (ISOs) and Regional Transmission Organizations (RTOs) to operate the grid means that control of transmission assets is separate from ownership of these assets; at the same time, business uncertainty, and changing regulatory policies have created a climate in which needed investment for transmission infrastructure and tools for reliability management has dried up. To address the resulting emerging gaps in reliability R&D, CERTS has undertaken much-needed public interest research on reliability technologies for the electricity grid. CERTS' vision is to: (1) Transform the electricity grid into an intelligent network that can sense and respond automatically to changing flows of power and emerging problems; (2) Enhance reliability management through market mechanisms, including transparency of real-time information on the status of the grid; (3) Empower customers to manage their energy use and reliability needs in response to real-time market price signals; and (4) Seamlessly integrate distributed technologies--including those for generation, storage, controls, and communications--to support the reliability needs of both the grid and individual customers.

  10. Southeast Regional Clean Energy Policy Analysis

    Broader source: Energy.gov [DOE]

    This report covers the states that largely fall into the Southeastern Reliability Corporation (SERC) region: Alabama, Arkansas, Georgia, Louisiana, Kentucky, Missouri, Mississippi, North Carolina, South Carolina, and Tennessee.

  11. NREL Publishes Gearbox Reliability Collaborative Findings Report...

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

    In an effort to help industry increase gearbox reliability, DOE and NREL launched the Wind Turbine Gearbox Reliability Collaborative (GRC) in 2006 to validate the typical gearbox ...

  12. 2013 Transmission Reliability Program Peer Review | Department...

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

    Sauer, U. Illinois Automatic Reliability Reports (ARR) Research & Implementation, Carlos Martinez, ASR, Inc. Reliability Standards Analysis and Assessment, Gil Tam, EPG 2013 TR...

  13. North American Electric Reliability Corporation Interconnections...

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

    Map of the North American Electric Reliability Corporation Interconnection showing the Eastern, Western, and Teaxs Interconnectins. North American Electric Reliability Corporation...

  14. NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance...

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

    NORTH AMERICAN ELECTRIC RELIABILITY COUNCIL: Preliminary Disturbance Report (40.43 KB) More Documents & Publications North American Electric Reliability Council Power Outage Update ...

  15. Distributed Generation Operational Reliability and Availability...

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

    Reliability and Availability Database, Final Report, January 2004 Distributed Generation Operational Reliability and Availability Database, Final Report, January 2004 This final ...

  16. Recommendations to Address Power Reliability Concerns Raised...

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

    Reliability Concerns Raised as a Result of Pending Environmental Regulations for Electric Generation Stations Recommendations to Address Power Reliability Concerns Raised as a ...

  17. Reliability Technology earns prestigious Los Alamos award

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

    Reliability Technology earns award Reliability Technology earns prestigious Los Alamos award LANL has honored Michael Hamada, Harry Martz and a team of researchers with its first ...

  18. RTI International Develops SSL Luminaire Reliability Model |...

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

    life testing (ALT) methodologies and a reliability model for predicting the lifetime of ... is not a proxy for luminaire reliability, and that a systems-level approach ...

  19. Reliability, O&M, Standards Development

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

    Reliability, O&M, Standards Development - Sandia Energy Energy Search Icon Sandia Home ... Twitter Google + Vimeo GovDelivery SlideShare Reliability, O&M, Standards Development ...

  20. Thermoelectric Mechanical Reliability | Department of Energy

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

    0_wereszczak.pdf (1.52 MB) More Documents & Publications Thermoelectric Mechanical Reliability Thermoelectric Mechanical Reliability Thermoelectrics Theory and Structure

  1. Comments of North American Electric Reliability Corporation ...

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

    North American Electric Reliability Corporation (NERC) to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges Comments of North American Electric Reliability Corporation ...

  2. Wind turbine reliability database update.

    SciTech Connect (OSTI)

    Peters, Valerie A.; Hill, Roger Ray; Stinebaugh, Jennifer A.; Veers, Paul S.

    2009-03-01

    This report documents the status of the Sandia National Laboratories' Wind Plant Reliability Database. Included in this report are updates on the form and contents of the Database, which stems from a fivestep process of data partnerships, data definition and transfer, data formatting and normalization, analysis, and reporting. Selected observations are also reported.

  3. Using wind plant data to increase reliability.

    SciTech Connect (OSTI)

    Peters, Valerie A.; Ogilvie, Alistair B.; McKenney, Bridget L.

    2011-01-01

    Operators interested in improving reliability should begin with a focus on the performance of the wind plant as a whole. To then understand the factors which drive individual turbine performance, which together comprise the plant performance, it is necessary to track a number of key indicators. Analysis of these key indicators can reveal the type, frequency, and cause of failures and will also identify their contributions to overall plant performance. The ideal approach to using data to drive good decisions includes first determining which critical decisions can be based on data. When those required decisions are understood, then the analysis required to inform those decisions can be identified, and finally the data to be collected in support of those analyses can be determined. Once equipped with high-quality data and analysis capabilities, the key steps to data-based decision making for reliability improvements are to isolate possible improvements, select the improvements with largest return on investment (ROI), implement the selected improvements, and finally to track their impact.

  4. Technical information report: Plasma melter operation, reliability, and maintenance analysis

    SciTech Connect (OSTI)

    Hendrickson, D.W. [ed.

    1995-03-14

    This document provides a technical report of operability, reliability, and maintenance of a plasma melter for low-level waste vitrification, in support of the Hanford Tank Waste Remediation System (TWRS) Low-Level Waste (LLW) Vitrification Program. A process description is provided that minimizes maintenance and downtime and includes material and energy balances, equipment sizes and arrangement, startup/operation/maintence/shutdown cycle descriptions, and basis for scale-up to a 200 metric ton/day production facility. Operational requirements are provided including utilities, feeds, labor, and maintenance. Equipment reliability estimates and maintenance requirements are provided which includes a list of failure modes, responses, and consequences.

  5. Memorandum, Clarification of Requirements for Certification in Title 10

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

    Code of Federal Regulations Part 712, Human Reliability Program | Department of Energy Clarification of Requirements for Certification in Title 10 Code of Federal Regulations Part 712, Human Reliability Program Memorandum, Clarification of Requirements for Certification in Title 10 Code of Federal Regulations Part 712, Human Reliability Program August 20, 2013 Clarification of Requirements for Certification in Title 10 Code of Federal Regulations Part 712, Human Reliability Program

  6. Software reliability and safety in nuclear reactor protection systems

    SciTech Connect (OSTI)

    Lawrence, J.D.

    1993-11-01

    Planning the development, use and regulation of computer systems in nuclear reactor protection systems in such a way as to enhance reliability and safety is a complex issue. This report is one of a series of reports from the Computer Safety and Reliability Group, Lawrence Livermore that investigates different aspects of computer software in reactor National Laboratory, that investigates different aspects of computer software in reactor protection systems. There are two central themes in the report, First, software considerations cannot be fully understood in isolation from computer hardware and application considerations. Second, the process of engineering reliability and safety into a computer system requires activities to be carried out throughout the software life cycle. The report discusses the many activities that can be carried out during the software life cycle to improve the safety and reliability of the resulting product. The viewpoint is primarily that of the assessor, or auditor.

  7. Gearbox Reliability Collaborative Bearing Calibration

    SciTech Connect (OSTI)

    van Dam, J.

    2011-10-01

    NREL has initiated the Gearbox Reliability Collaborative (GRC) to investigate the root cause of the low wind turbine gearbox reliability. The GRC follows a multi-pronged approach based on a collaborative of manufacturers, owners, researchers and consultants. The project combines analysis, field testing, dynamometer testing, condition monitoring, and the development and population of a gearbox failure database. At the core of the project are two 750kW gearboxes that have been redesigned and rebuilt so that they are representative of the multi-megawatt gearbox topology currently used in the industry. These gearboxes are heavily instrumented and are tested in the field and on the dynamometer. This report discusses the bearing calibrations of the gearboxes.

  8. CSD Safety and Reliability Data

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

    CSD Safety & Reliability Data Forecourt CSD Workshop Argonne National Laboratory Kevin Harrison 20-Mar-2013 2 Approach - Composite Data Products CDPs DDPs Results Internal analysis completed quarterly Bundled data (operation & maintenance/safety) delivered to NREL quarterly Composite Data Products (CDPs) * Aggregated data across multiple systems, sites, and teams * Publish analysis results without revealing proprietary data every 6 months 2 Detailed Data Products (DDPs) * Individual data

  9. PV Reliability & Performance Model

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

    Reliability & Performance Model - 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 Energy Defense Waste Management Programs

  10. Human Reliability Analysis for Small Modular Reactors

    SciTech Connect (OSTI)

    Ronald L. Boring; David I. Gertman

    2012-06-01

    Because no human reliability analysis (HRA) method was specifically developed for small modular reactors (SMRs), the application of any current HRA method to SMRs represents tradeoffs. A first- generation HRA method like THERP provides clearly defined activity types, but these activity types do not map to the human-system interface or concept of operations confronting SMR operators. A second- generation HRA method like ATHEANA is flexible enough to be used for SMR applications, but there is currently insufficient guidance for the analyst, requiring considerably more first-of-a-kind analyses and extensive SMR expertise in order to complete a quality HRA. Although no current HRA method is optimized to SMRs, it is possible to use existing HRA methods to identify errors, incorporate them as human failure events in the probabilistic risk assessment (PRA), and quantify them. In this paper, we provided preliminary guidance to assist the human reliability analyst and reviewer in understanding how to apply current HRA methods to the domain of SMRs. While it is possible to perform a satisfactory HRA using existing HRA methods, ultimately it is desirable to formally incorporate SMR considerations into the methods. This may require the development of new HRA methods. More practicably, existing methods need to be adapted to incorporate SMRs. Such adaptations may take the form of guidance on the complex mapping between conventional light water reactors and small modular reactors. While many behaviors and activities are shared between current plants and SMRs, the methods must adapt if they are to perform a valid and accurate analysis of plant personnel performance in SMRs.

  11. Optimization of reliability allocation strategies through use of genetic algorithms

    SciTech Connect (OSTI)

    Campbell, J.E.; Painton, L.A.

    1996-08-01

    This paper examines a novel optimization technique called genetic algorithms and its application to the optimization of reliability allocation strategies. Reliability allocation should occur in the initial stages of design, when the objective is to determine an optimal breakdown or allocation of reliability to certain components or subassemblies in order to meet system specifications. The reliability allocation optimization is applied to the design of a cluster tool, a highly complex piece of equipment used in semiconductor manufacturing. The problem formulation is presented, including decision variables, performance measures and constraints, and genetic algorithm parameters. Piecewise ``effort curves`` specifying the amount of effort required to achieve a certain level of reliability for each component of subassembly are defined. The genetic algorithm evolves or picks those combinations of ``effort`` or reliability levels for each component which optimize the objective of maximizing Mean Time Between Failures while staying within a budget. The results show that the genetic algorithm is very efficient at finding a set of robust solutions. A time history of the optimization is presented, along with histograms or the solution space fitness, MTBF, and cost for comparative purposes.

  12. Transmission Reliability Peer Review Materials Now Available

    Broader source: Energy.gov [DOE]

    The Office of Electricity Delivery and Energy Reliability held a peer review of the Transmission Reliability Program on June 10-11, 2015, in Washington, DC. Materials including the agenda and presentations are now available for download.

  13. Deputy Director, Office of Electric Reliability | Department...

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

    Reliability Deputy Director, Office of Electric Reliability Submitted by admin on Sat, 2016-01-16 00:16 Job Summary Organization Name Department Of Energy Agency SubElement...

  14. Reliability Challenges for Solar Energy (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2009-12-08

    Presentation that reviews reliability issues related to various types of photovoltaic tecnnologies, including crystalline silicon, thin films, and concentrating PV.

  15. Reporting Requirements

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

    Reporting Requirements Reporting Requirements Contacts Director Albert Migliori Deputy Franz Freibert 505 667-6879 Email Professional Staff Assistant Susan Ramsay 505 665 0858...

  16. Distributed Generation Operational Reliability, Executive Summary Report,

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

    January 2004 | Department of Energy Reliability, Executive Summary Report, January 2004 Distributed Generation Operational Reliability, Executive Summary Report, January 2004 This report summarizes the results of the project, "Distributed Generation Market Transformation Tools: Distributed Generation Reliability and Availability Database," sponsored by Oak Ridge National Laboratory (ORNL), Energy Solutions Center (ESC), New York State Energy Research and Development Authority

  17. Wind energy Computerized Maintenance Management System (CMMS) : data collection recommendations for reliability analysis.

    SciTech Connect (OSTI)

    Peters, Valerie A.; Ogilvie, Alistair; Veers, Paul S.

    2009-09-01

    This report addresses the general data requirements for reliability analysis of fielded wind turbines and other wind plant equipment. The report provides a list of the data needed to support reliability and availability analysis, and gives specific recommendations for a Computerized Maintenance Management System (CMMS) to support automated analysis. This data collection recommendations report was written by Sandia National Laboratories to address the general data requirements for reliability analysis of fielded wind turbines. This report is intended to help the reader develop a basic understanding of what data are needed from a Computerized Maintenance Management System (CMMS) and other data systems, for reliability analysis. The report provides: (1) a list of the data needed to support reliability and availability analysis; and (2) specific recommendations for a CMMS to support automated analysis. Though written for reliability analysis of wind turbines, much of the information is applicable to a wider variety of equipment and a wider variety of analysis and reporting needs.

  18. A reliability and mass perspective of SP-100 Stirling cycle lunar-base powerplant designs

    SciTech Connect (OSTI)

    Bloomfield, H.S.

    1991-06-01

    The purpose was to obtain reliability and mass perspectives on selection of space power system conceptual designs based on SP-100 reactor and Stirling cycle power-generation subsystems. The approach taken was to: (1) develop a criterion for an acceptable overall reliability risk as a function of the expected range of emerging technology subsystem unit reliabilities; (2) conduct reliability and mass analyses for a diverse matrix of 800-kWe lunar-base design configurations employing single and multiple powerplants with both full and partial subsystem redundancy combinations; and (3) derive reliability and mass perspectives on selection of conceptual design configurations that meet an acceptable reliability criterion with the minimum system mass increase relative to reference powerplant design. The developed perspectives provided valuable insight into the considerations required to identify and characterize high-reliability and low-mass lunar-base powerplant conceptual design.

  19. Reliability Considerations from Integration of Smart Grid

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

    Reliability Considerations from the Integration of Smart Grid 116-390 Village Blvd., Princeton, NJ 08540 609.452.8060 | 609.452.9550 fax www.nerc.com the reliability of the to ensure bulk power system December 2010 (This page intentionally left blank) to ensure the reliability of the bulk power system Reliability Considerations of Integration of Smart Grid i December 2010 N N E E R R C C ' ' s s M M i i s s s s i i o o n n The North American Electric Reliability Corporation (NERC) is an

  20. Review of Quantitative Software Reliability Methods

    SciTech Connect (OSTI)

    Chu, T.L.; Yue, M.; Martinez-Guridi, M.; Lehner, J.

    2010-09-17

    using dynamic PRA methods. These efforts, documented in NUREG/CR-6901, NUREG/CR-6942, and NUREG/CR-6985, included a functional representation of the system's software but did not explicitly address failure modes caused by software defects or by inadequate design requirements. An important identified research need is to establish a commonly accepted basis for incorporating the behavior of software into digital I&C system reliability models for use in PRAs. To address this need, BNL is exploring the inclusion of software failures into the reliability models of digital I&C systems, such that their contribution to the risk of the associated NPP can be assessed.

  1. Gearbox Reliability Collaborative Phase 3 Gearbox 2 Test

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Keller, Jonathan; Robb, Wallen

    2016-05-12

    The National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) was established by the U.S. Department of Energy in 2006; its key goal is to understand the root causes of premature gearbox failures and improve their reliability. The GRC uses a combined gearbox testing, modeling, and analysis approach disseminating data and results to the industry and facilitating improvement of gearbox reliability. This test data describes the tests of GRC gearbox 2 in the National Wind Technology Center dynamometer and documents any modifications to the original test plan. It serves as a guide to interpret the publicly released data sets with brief analyses to illustrate the data. TDMS viewer and Solidworks software required to view data files.

  2. Time-Dependent Reliability Analysis

    Energy Science and Technology Software Center (OSTI)

    1999-10-27

    FRANTIC-3 was developed to evaluate system unreliability using time-dependent techniques. The code provides two major options: to evaluate standby system unavailability or, in addition to the unavailability to calculate the total system failure probability by including both the unavailability of the system on demand as well as the probability that it will operate for an arbitrary time period following the demand. The FRANTIC-3 time dependent reliability models provide a large selection of repair and testingmore » policies applicable to standby or continously operating systems consisting of periodically tested, monitored, and non-repairable (non-testable) components. Time-dependent and test frequency dependent failures, as well as demand stress related failure, test-caused degradation and wear-out, test associated human errors, test deficiencies, test override, unscheduled and scheduled maintenance, component renewal and replacement policies, and test strategies can be prescribed. The conditional system unavailabilities associated with the downtimes of the user specified failed component are also evaluated. Optionally, the code can perform a sensitivity study for system unavailability or total failure probability to the failure characteristics of the standby components.« less

  3. MEMS reliability in shock environments

    SciTech Connect (OSTI)

    TANNER,DANELLE M.; WALRAVEN,JEREMY A.; HELGESEN,KAREN SUE; IRWIN,LLOYD W.; BROWN,FREDERICK A.; SMITH,NORMAN F.; MASTERS,NATHAN

    2000-02-09

    In order to determine the susceptibility of the MEMS (MicroElectroMechanical Systems) devices to shock, tests were performed using haversine shock pulses with widths of 1 to 0.2 ms in the range from 500g to 40,000g. The authors chose a surface-micromachined microengine because it has all the components needed for evaluation: springs that flex, gears that are anchored, and clamps and spring stops to maintain alignment. The microengines, which were unpowered for the tests, performed quite well at most shock levels with a majority functioning after the impact. Debris from the die edges moved at levels greater than 4,000g causing shorts in the actuators and posing reliability concerns. The coupling agent used to prevent stiction in the MEMS release weakened the die-attach bond, which produced failures at 10,000g and above. At 20,000g the authors began to observe structural damage in some of the thin flexures and 2.5-micron diameter pin joints. The authors observed electrical failures caused by the movement of debris. Additionally, they observed a new failure mode where stationary comb fingers contact the ground plane resulting in electrical shorts. These new failure were observed in the control group indicating that they were not shock related.

  4. Weld defect distributions in offshore structures and their influence on structural reliability

    SciTech Connect (OSTI)

    Rogerson, J.H.; Wong, W.K.

    1982-01-01

    Failure by fracture is a serious possible fracture mode of steel offshore structures particularly in hostile, low-temperature environments. Such fracture usually initiates from flaws in regions of stress concentration. For any probabilistic failure analysis to be credible, it is necessary to have a good estimate of the flaw size and distribution. For fixed steel platforms the important flaw size distribution is the distribution of defect height in welds in node connections. Previous work has shown that different structures have similar defect distributions which suggests that a function can be derived for the generality of such structures. Data has been analyzed relating to > 1000 m of weld in one North Sea structure. From this can be seen that a Weibull distribution is the appropriate function to use for defect height. Conclusions also are drawn about the required reliability of even an imperfect inspection and repair technique to significantly reduce failure probability.

  5. Animation Requirements

    Broader source: Energy.gov [DOE]

    Animations include dynamic elements such as interactive images and games. For developing animations, follow these design and coding requirements.

  6. Reliability and Markets Program Information | Department of Energy

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

    Reliability and Markets Program Information Reliability and Markets Program Information Summary of the Tranmission Reliability program's Reliability and Markets activity area. The program helps to increase grid reliability and reduce costs for customers using integrated market and engineering tools. Reliability and Markets Program Factsheet.pdf (2.86 MB) More Documents & Publications 2014 Reliability & Markets Peer Review 2013 Reliability & Markets Peer Review 2012 Reliability &

  7. Information Concerning Reliability Impacts under Various System

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

    Configurations of the Mirant Potomac River Plant | Department of Energy Information Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Information Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Docket No. EO-05-01: PJM Interconnection, L.L.C. and PEPCO Holdings, Inc. is hereby providing you with additional information concerning reliability impacts under various system conditions

  8. Distributed Generation Operational Reliability and Availability Database,

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

    Final Report, January 2004 | Department of Energy Reliability and Availability Database, Final Report, January 2004 Distributed Generation Operational Reliability and Availability Database, Final Report, January 2004 This final report documents the results of an 18-month project entitled, "Distributed Generation Market Transformation Tools: Distributed Generation Reliability and Availability Database," sponsored by Oak Ridge National Laboratory (ORNL), Energy Solutions Center

  9. NREL Publishes Gearbox Reliability Collaborative Findings Report |

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

    Department of Energy Publishes Gearbox Reliability Collaborative Findings Report NREL Publishes Gearbox Reliability Collaborative Findings Report October 3, 2011 - 12:56pm Addthis This is an excerpt from the Third Quarter 2011 edition of the Wind Program R&D Newsletter. In June, DOE's National Renewable Energy Laboratory (NREL) published the first formal report on the efforts of the Gearbox Reliability Collaborative (GRC) to address a major challenge for the wind energy industry-gearbox

  10. Augmenting system reliability analyses with observation priors...

    Office of Scientific and Technical Information (OSTI)

    missing data may be imputed using standard data augmentation (DA). This process is already used in the current implementation of the JMP complex-system reliability modeling codes. ...

  11. Continuous Reliability Enhancement for Wind (CREW)

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

    Technologies Alistair Ogilvie, CREW Project Lead aogilvi@sandia.gov Continuous Reliability Enhancement for Wind (CREW) 2012 Wind Turbine Blade Workshop June 1, 2012 SAND...

  12. Sandia Energy - North American Electric Reliability Corporation...

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

    North American Electric Reliability Corporation (NERC) Report Posted Home Energy Assurance Infrastructure Security Grid Integration News News & Events Transmission Grid Integration...

  13. Wind Turbine Condition Monitoring, Reliability Database, and...

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

    Wind Turbine Gearbox Reliability Database, Condition Monitoring, and O&M Research Update ... (OEMs), gearbox rebuild shops, wind plant owneroperators, and consulting ...

  14. Computational Actinide Chemistry: Reliable Predictions and New...

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

    Computational Actinide Chemistry: Reliable Predictions and New Concepts PI Name: David ... 100 Million Year: 2014 Research Domain: Chemistry The project will obtain some of the ...

  15. Smart Grid Investments Improve Grid Reliability, Resilience,...

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

    reliability to reduce customer losses from power disruptions. This report presents findings on smart grid improvements in outage management from OE's Smart Grid Investment ...

  16. Reliable Power Inc | Open Energy Information

    Open Energy Info (EERE)

    Reliable Power Inc Place: Arlington, Virginia Zip: VA 22201 Product: US-based fuel cell manufacturer. Coordinates: 43.337585, -89.379449 Show Map Loading map......

  17. Salvage Values Determines Reliability of Used Photovoltaics ...

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

    Presented at the PV Module Reliability Workshop, February 26 - 27 2013, Golden, Colorado PDF icon pvmrw13ps1energyideasmccabe.pdf More Documents & Publications Revitalizing ...

  18. 2014 DOE Human Reliability Program (HRP) Workshop

    Office of Energy Efficiency and Renewable Energy (EERE)

    2014 DOE Human Reliability Program (HRP) Workshop - September 17-19, at the DOE National Training Center in Albuquerque, New Mexico.

  19. China and India PV Reliability-NREL Cooperation | Open Energy...

    Open Energy Info (EERE)

    PV Reliability-NREL Cooperation Jump to: navigation, search Logo: China and India PV Reliability under the Asia Pacific Partnership Name China and India PV Reliability under the...

  20. Electricity Reliability Council of Texas | Open Energy Information

    Open Energy Info (EERE)

    Reliability Council of Texas Jump to: navigation, search Logo: Electricity Reliability Council of Texas Name: Electricity Reliability Council of Texas Abbreviation: ERCOT Address:...

  1. NREL: Gearbox Reliability Collaborative - Working with the Gearbox...

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

    Research Wind Gearbox Reliability Collaborative Printable Version Working with the Gearbox Reliability Collaborative Learn more about how you can work with the Gearbox Reliability ...

  2. Topic A and B Awardee: Electric Reliability Council of Texas...

    Office of Environmental Management (EM)

    and B Awardee: Electric Reliability Council of Texas Topic A and B Awardee: Electric Reliability Council of Texas The Electric Reliability Council of Texas (ERCOT) manages the flow ...

  3. Human Reliability Considerations for Small Modular Reactors

    SciTech Connect (OSTI)

    OHara J. M.; Higgins, H.; DAgostino, A.; Erasmia, L.

    2012-01-27

    Small modular reactors (SMRs) are a promising approach to meeting future energy needs. Although the electrical output of an individual SMR is relatively small compared to that of typical commercial nuclear plants, they can be grouped to produce as much energy as a utility demands. Furthermore, SMRs can be used for other purposes, such as producing hydrogen and generating process heat. The design characteristics of many SMRs differ from those of current conventional plants and may require a distinct concept of operations. The U.S. Nuclear Regulatory Commission (NRC) conducted research to examine the human factors engineering and the operational aspects of SMRs. The research identified thirty potential human-performance issues that should be considered in the NRC's reviews of SMR designs and in future research activities. The purpose of this report is to illustrate how the issues can support SMR probabilistic risk analyses and their review by identifying potential human failure events for a subset of the issues. As part of addressing the human contribution to plant risk, human reliability analysis practitioners identify and quantify the human failure events that can negatively impact normal or emergency plant operations. The results illustrated here can be generalized to identify additional human failure events for the issues discussed and can be applied to those issues not discussed in this report.

  4. Survey of Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    SciTech Connect (OSTI)

    Fink, S.; Porter, K.; Mudd, C.; Rogers, J.

    2011-02-01

    The report presents transmission cost allocation methodologies for reliability transmission projects, generation interconnection, and economic transmission projects for all Regional Transmission Organizations.

  5. Electric Transmission Network: A Multi-Region Analysis, The

    Reports and Publications (EIA)

    2000-01-01

    This paper examines the ability of the existing transmission network to respond efficiently to increased trade over four reliability regions in the northeastern United States.

  6. Eligibility Requirements

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

    Eligibility Requirements Eligibility Requirements A comprehensive benefits package with plan options for health care and retirement to take care of our employees today and tomorrow. Contact Benefits Office (505) 667-1806 Email Eligibility and required supporting documentation The Laboratory offers an extensive benefits package to full and part time employees. Casual employees (excluding High School Coop, Lab Associates and Craft Employees) are eligible to enroll in the HDHP medical plan. Refer

  7. Competition Requirements

    Office of Environmental Management (EM)

    - Chapter 6.1 (January 2011) 1 Competition Requirements [Reference: FAR 6 and DEAR 906] Overview This section discusses competition requirements and provides a model Justification for Other than Full and Open Competition (JOFOC). Background The Competition in Contracting Act (CICA) of 1984 requires that all acquisitions be made using full and open competition. Seven exceptions to using full and open competition are specifically identified in Federal Acquisition Regulation (FAR) Subpart 6.3.

  8. Reporting Requirements

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

    Reporting Requirements Reporting Requirements Contacts Director Albert Migliori Deputy Franz Freibert 505 667-6879 Email Professional Staff Assistant Susan Ramsay 505 665 0858 Email The Fellow will be required to participate in the Actinide Science lecture series by both attending lectures and presenting a scientific lecture on actinide science in this series. Submission of a viewgraph and brief write-up of the project. Provide metrics information as requested. Submission of an overview article

  9. Competition Requirements

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

    ---------------------------------------- Chapter 6.1 (July 2011) 1 Competition Requirements [Reference: FAR 6 and DEAR 906] Overview This section discusses competition requirements and provides a model Justification for Other than Full and Open Competition (JOFOC). Background The Competition in Contracting Act (CICA) of 1984 requires that all acquisitions be made using full and open competition. Seven exceptions to using full and open competition are specifically identified in Federal

  10. Deployment Requirements

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

    Troy, Michigan June 13, 2014 THIS PRESENTATION DOES NOT CONTAIN ANY PROPRIETARY, CONFIDENTIAL OR OTHERWISE RESTRICTED INFORMATION 2 Outline of talk * SAE 2719 Requirements and ...

  11. Video Requirements

    Broader source: Energy.gov [DOE]

    All EERE videos, including webinar recordings, must meet Section 508's requirements for accessibility. All videos should be hosted on the DOE YouTube channel.

  12. Regional Purchasing

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

    Regional Partnerships Regional Partnerships DOE's Regional Carbon Sequestration Partnerships Program DOE has created a network of seven Regional Carbon Sequestration Partnerships (RCSPs) to help develop the technology, infrastructure, and regulations to implement large-scale CO2 storage (also called carbon sequestration) in different regions and geologic formations within the Nation. Collectively, the seven RCSPs represent regions encompassing: 97 percent of coal-fired CO2 emissions; 97 percent

  13. Thermoelectric Mechanical Reliability | Department of Energy

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

    1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation pm012_wereszczak_2011_o.pdf (498.73 KB) More Documents & Publications Thermoelectrics Theory and Structure Transport Properties, Thermal Response, and Mechanical Reliability of Thermoelectric Materials and Devices for Automotive Waste Heat Recovery Thermoelectric Mechanical Reliability

  14. PV Performance and Reliability Validation Capabilities at Sandia...

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

    Performance and Reliability Validation Capabilities at Sandia National Laboratories PV Performance and Reliability Validation Capabilities at Sandia National Laboratories This ...

  15. Competition and Reliability in North American Electricity Markets...

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

    Electricity Markets Technical Workshop Competition and Reliability in North American Electricity Markets Technical Workshop Competition and Reliability in North American ...

  16. WWW media distribution via Hopwise reliable multicast

    SciTech Connect (OSTI)

    Donnelley, J.E.

    1994-12-01

    Repeated access to WWW pages currently makes inefficient use of available network bandwidth. A Distribution Point Model is proposed where large and relatively static sets of pages (e.g. magazines or other such media) are distributed via bulk multicast to LAN distribution points for local access. Some access control issues are discussed. Hopwise Reliable Multicast (HRM) is proposed to simplify reliable multicast of non real time bulk data between LANs. HRM uses TCP for reliability and flow control on a hop by hop basis throughout a multicast distribution tree created by today`s Internet MBone.

  17. MEMS reliability: The challenge and the promise

    SciTech Connect (OSTI)

    Miller, W.M.; Tanner, D.M.; Miller, S.L.; Peterson, K.A.

    1998-05-01

    MicroElectroMechanical Systems (MEMS) that think, sense, act and communicate will open up a broad new array of cost effective solutions only if they prove to be sufficiently reliable. A valid reliability assessment of MEMS has three prerequisites: (1) statistical significance; (2) a technique for accelerating fundamental failure mechanisms, and (3) valid physical models to allow prediction of failures during actual use. These already exist for the microelectronics portion of such integrated systems. The challenge lies in the less well understood micromachine portions and its synergistic effects with microelectronics. This paper presents a methodology addressing these prerequisites and a description of the underlying physics of reliability for micromachines.

  18. Reliability Issues for Photovoltaic Modules (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2009-10-01

    Si modules good in field; new designs need reliability testing. CdTe & CIGS modules sensitive to moisture; carefully seal. CPV in product development stage; benefits from expertise in other industries.

  19. PV Module Reliability Research (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-06-01

    This National Center for Photovoltaics sheet describes the capabilities of its PV module reliability research. The scope and core competencies and capabilities are discussed and recent publications are listed.

  20. Reliability Challenges for Solar Energy (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2009-04-27

    PV industry can benefit from reliability testing experience of microelectronics industry . Si modules perform well in field; CdTe/CIGS must be sealed to moisture; CPV in product development stage.

  1. Reliability Improvements from the Application of Distribution...

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

    ... Many utilities estimate the value of electric services to consumers to assess the benefits of investments to improve reliability. 5 Most power outages are caused by weather-related ...

  2. Sandia Energy - PV Reliability & Performance Model

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

    15-06-01T20:13:00+00:00 This Web Demo model is a simplified "player" version of the Photovoltaic Reliability Performance Model (PV-RPM) currently in development at Sandia National...

  3. Production Facility System Reliability Analysis Report

    SciTech Connect (OSTI)

    Dale, Crystal Buchanan; Klein, Steven Karl

    2015-10-06

    This document describes the reliability, maintainability, and availability (RMA) modeling of the Los Alamos National Laboratory (LANL) design for the Closed Loop Helium Cooling System (CLHCS) planned for the NorthStar accelerator-based 99Mo production facility. The current analysis incorporates a conceptual helium recovery system, beam diagnostics, and prototype control system into the reliability analysis. The results from the 1000 hr blower test are addressed.

  4. Gearbox Reliability Collaborative (GRC) Description and Loading

    SciTech Connect (OSTI)

    Oyague, F.

    2011-11-01

    This document describes simulated turbine load cases in accordance to the IEC 61400-1 Ed.3 standard, which is representative of the typical wind turbine design process. The information presented herein is intended to provide a broad understanding of the gearbox reliability collaborative 750kW drivetrain and turbine configuration. In addition, fatigue and ultimate strength drivetrain loads resulting from simulations are presented. This information provides the bases for the analytical work of the gearbox reliability collaborative effort.

  5. Reliability Technology earns prestigious Los Alamos Award

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

    Reliability Technology earns prestigious Los Alamos Award Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue: September 1, 2016 all issues All Issues » submit Reliability Technology earns prestigious Los Alamos Award Technology transferred to Procter & Gamble basis for first-ever Feynman Prize September 1, 2013 Feynman Prize winners Michael Hamada, center, and Harry Martz, second from left, hold their Feynman Prizes during a recent

  6. Reliable Viscosity Calculation from Equilibrium Molecular Dynamics

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

    Simulations: A Time Decomposition Method - Joint Center for Energy Storage Research July 7, 2015, Research Highlights Reliable Viscosity Calculation from Equilibrium Molecular Dynamics Simulations: A Time Decomposition Method Schematic demonstration of the time decomposition method Scientific Achievement An equilibrium molecular dynamics-based computational method is developed and tested for the reliable calculation of viscosity. Significance and Impact Viscosity is one of the key properties

  7. Dormant storage reliability assessments-data based

    SciTech Connect (OSTI)

    Merren, G.T.

    1981-01-01

    A relatively large amount of data pertaining to the performance of certain electronic parts after long periods of dormant storage has been collected and analyzed by the Reliability Department of Sandia National Laboratories. The failure models used by Sandia are presented and reliability assessments for selected electronic parts derived from these models and the measured performance data are provided. These data based assessments are compared to similar assessments derived from handbook calculations using the general data and models provided in the handbooks.

  8. Office of Electricity Delivery and Energy Reliability

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

    Comments of Cisco Systems to Office of Electricity Delivery and Energy Reliability Department of Energy in Response to Request for Information: Addressing Policy and Logistical Challenges to Smart Grid Implementation Issued September 13, 2010 FR Doc. 2010-23251 November 30, 2010 Cisco Systems provides these Comments in response to the Request for Information ("RFI") issued by the Office of Electricity Delivery and Energy Reliability of the Department of Energy ("DOE") on

  9. Topic A and B Awardee: Electric Reliability Council of Texas

    Broader source: Energy.gov [DOE]

    The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 22 million Texas customers - representing 85 percent of the state's electric load and 75 percent of the Texas land area. As the independent system operator for the region, ERCOT schedules power on an electric grid that connects 40,000 miles of transmission lines and more than 550 generation units. ERCOT also manages financial settlement for the competitive wholesale bulk-power market and administers customer switching for 6.5 million Texans in competitive choice areas.

  10. Superconducting Super Collider Magnet System requirements. Revision A

    SciTech Connect (OSTI)

    1986-10-23

    This report discusses the Superconducting Super Collider magnet system requirements when the following categories: Functions; operational performance requirements; system configuration and essential features; structural requirements; availability/reliability; instrumentation and control requirements; design life; environment; maintenance requirements; interface systems; quality assurance; safety; and applicable codes and standards.

  11. Regional Energy Deployment System (ReEDS)

    SciTech Connect (OSTI)

    Short, W.; Sullivan, P.; Mai, T.; Mowers, M.; Uriarte, C.; Blair, N.; Heimiller, D.; Martinez, A.

    2011-12-01

    The Regional Energy Deployment System (ReEDS) is a deterministic optimization model of the deployment of electric power generation technologies and transmission infrastructure throughout the contiguous United States into the future. The model, developed by the National Renewable Energy Laboratory's Strategic Energy Analysis Center, is designed to analyze the critical energy issues in the electric sector, especially with respect to potential energy policies, such as clean energy and renewable energy standards or carbon restrictions. ReEDS provides a detailed treatment of electricity-generating and electrical storage technologies and specifically addresses a variety of issues related to renewable energy technologies, including accessibility and cost of transmission, regional quality of renewable resources, seasonal and diurnal generation profiles, variability of wind and solar power, and the influence of variability on the reliability of the electrical grid. ReEDS addresses these issues through a highly discretized regional structure, explicit statistical treatment of the variability in wind and solar output over time, and consideration of ancillary services' requirements and costs.

  12. Competition Requirements

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

    ---- ----------------------------------------------- Chapter 5.2 (April 2008) Synopsizing Proposed Non-Competitive Contract Actions Citing the Authority of FAR 6.302-1 [Reference: FAR 5 and DEAR 905] Overview This section discusses publicizing sole source actions as part of the approval of a Justification for Other than Full and Open Competition (JOFOC) using the authority of FAR 6.302-1. Background The Competition in Contracting Act (CICA) of 1984 requires that all acquisitions be made using

  13. Functional performance requirements for seismic network upgrade

    SciTech Connect (OSTI)

    Lee, R.C.

    1991-08-18

    The SRL seismic network, established in 1976, was developed to monitor site and regional seismic activity that may have any potential to impact the safety or reduce containment capability of existing and planned structures and systems at the SRS, report seismic activity that may be relevant to emergency preparedness, including rapid assessments of earthquake location and magnitude, and estimates of potential on-site and off-site damage to facilities and lifelines for mitigation measures. All of these tasks require SRL seismologists to provide rapid analysis of large amounts of seismic data. The current seismic network upgrade, the subject of this Functional Performance Requirements Document, is necessary to improve system reliability and resolution. The upgrade provides equipment for the analysis of the network seismic data and replacement of old out-dated equipment. The digital network upgrade is configured for field station and laboratory digital processing systems. The upgrade consists of the purchase and installation of seismic sensors,, data telemetry digital upgrades, a dedicated Seismic Data Processing (SDP) system (already in procurement stage), and a Seismic Signal Analysis (SSA) system. The field stations and telephone telemetry upgrades include equipment necessary for three remote station upgrades including seismic amplifiers, voltage controlled oscillators, pulse calibrators, weather protection (including lightning protection) systems, seismometers, seismic amplifiers, and miscellaneous other parts. The central receiving and recording station upgrades will include discriminators, helicopter amplifier, omega timing system, strong motion instruments, wide-band velocity sensors, and other miscellaneous equipment.

  14. Robot-Powered Reliability Testing at NREL's ESIF

    ScienceCinema (OSTI)

    Harrison; Kevin

    2014-06-10

    With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested-and currently costly-component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle-all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

  15. Robot-Powered Reliability Testing at NREL's ESIF

    SciTech Connect (OSTI)

    Harrison; Kevin

    2013-12-05

    With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested-and currently costly-component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle-all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

  16. Robot-Powered Reliability Testing at NREL's ESIF

    SciTech Connect (OSTI)

    Harrison, Kevin

    2013-12-05

    With auto manufacturers expected to roll out fuel cell electric vehicles in the 2015 to 2017 timeframe, the need for a reliable hydrogen fueling infrastructure is greater than ever. That's why the National Renewable Energy Laboratory (NREL) is using a robot in its Energy Systems Integration Facility (ESIF) to assess the durability of hydrogen fueling hoses, a largely untested—and currently costly—component of hydrogen fueling stations. The automated machine mimics the repetitive stress of a human bending and twisting the hose to refuel a vehicle—all under the high pressure and low temperature required to deliver hydrogen to a fuel cell vehicle's onboard storage tank.

  17. Wind energy Computerized Maintenance Management System (CMMS) : data collection recommendations for reliability analysis.

    SciTech Connect (OSTI)

    Peters, Valerie A.; Ogilvie, Alistair B.

    2012-01-01

    This report addresses the general data requirements for reliability analysis of fielded wind turbines and other wind plant equipment. The report provides a rationale for why this data should be collected, a list of the data needed to support reliability and availability analysis, and specific data recommendations for a Computerized Maintenance Management System (CMMS) to support automated analysis. This data collection recommendations report was written by Sandia National Laboratories to address the general data requirements for reliability analysis of operating wind turbines. This report is intended to help develop a basic understanding of the data needed for reliability analysis from a Computerized Maintenance Management System (CMMS) and other data systems. The report provides a rationale for why this data should be collected, a list of the data needed to support reliability and availability analysis, and specific recommendations for a CMMS to support automated analysis. Though written for reliability analysis of wind turbines, much of the information is applicable to a wider variety of equipment and analysis and reporting needs. The 'Motivation' section of this report provides a rationale for collecting and analyzing field data for reliability analysis. The benefits of this type of effort can include increased energy delivered, decreased operating costs, enhanced preventive maintenance schedules, solutions to issues with the largest payback, and identification of early failure indicators.

  18. Gearbox Reliability Collaborative - Phase 1 and 2 Overview (Presentation), NREL (National Renewable Energy Laboratory)

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

    Gearbox Reliability Collaborative - Phase 1 and 2 Overview Sandia Turbine Reliability Workshop Aug 2-3, 2011 Hal Link NREL/PR-5000-52463 NREL PIX # 19222 NATIONAL RENEWABLE ENERGY LABORATORY Why GRC? * Wind turbine gearboxes do not last their 20 year design life * Designs must meet design, manufacturer, and testing standards and certification requirements * Problems have occurred throughout the wind industry * Problems range across the turbine design cycle * load characterization * design

  19. Load As A Reliability Resource in the Restructured Electricity Market

    SciTech Connect (OSTI)

    Kueck, J.D.

    2002-06-10

    Recent electricity price spikes are painful reminders of the value that meaningful demand-side responses could bring to the restructuring US electricity system. Review of the aggregate offers made by suppliers confirms that even a modest increase in demand elasticity could dramatically reduce these extremes in price volatility. There is a strong need for dramatically increased customer participation in these markets to enhance system reliability and reduce price volatility. Indeed, allowing customers to manage their loads in response to system conditions might be thought of as the ultimate reliability resource. Most would agree that meaningful demand-side responses to price are the hallmark of a well-functioning competitive market [1]. Yet, in today's markets for electricity, little or no such response is evident. The reason is simple: customers currently do not experience directly the time-varying costs of their consumption decisions. Consequently, they have no incentive to modify these decisions in ways that might enhance system reliability or improve the efficiency of the markets in which electricity is traded. Increased customer participation is a necessary step in the evolution toward more efficient markets for electricity and ancillary services. This scoping report provides a three-part assessment of the current status of efforts to enhance the ability of customer's load to participate in competitive markets with a specific focus on the role of customer loads in enhancing electricity system reliability. First, this report considers the definitions of electricity-reliability-enhancing ancillary services (Section 2) and a preliminary assessment of the ability of customer's loads to provide these services. Second, is a review a variety of programs in which load has been called on as a system reliability resource (Section 3). These experiences, drawn from both past and current utility and ISO programs, focus on programs triggered by system condition (e

  20. Gearbox Reliability Collaborative Update: A Brief (Presentation)

    SciTech Connect (OSTI)

    Sheng, S.; Keller, J.; McDade, M.

    2012-01-01

    This presentation is an update on the Gearbox Reliability Collaborative (GRC) for the AWEA Wind Project Operations, Maintenance & Reliability Seminar. GRC accomplishments are: (1) Failure database software deployed - partners see business value for themselves and customers; (2) Designed, built, instrumented, and tested two gearboxes - (a) Generated unprecedented public domain test data from both field testing and dynamometer testing, (b) Different responses from 'identical' gearboxes, (c) Demonstrated importance of non-torque loading and modeling approach; and (3) Active collaborative, with wide industry support, leveraging DOE funding - Modeling round robin and Condition Monitoring round robin.

  1. Visual inspection reliability for precision manufactured parts

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

    See, Judi E.

    2015-09-04

    Sandia National Laboratories conducted an experiment for the National Nuclear Security Administration to determine the reliability of visual inspection of precision manufactured parts used in nuclear weapons. In addition visual inspection has been extensively researched since the early 20th century; however, the reliability of visual inspection for nuclear weapons parts has not been addressed. In addition, the efficacy of using inspector confidence ratings to guide multiple inspections in an effort to improve overall performance accuracy is unknown. Further, the workload associated with inspection has not been documented, and newer measures of stress have not been applied.

  2. Owner/Operator Perspective on Reliability Customer Needs and...

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

    SERVICES AS RELIABLE AS THE SUN OwnerOperator Perspective on Reliability Customer Needs and Field Data Sandia National Laboratories Utility-Scale Grid-Tied PV Inverter Reliability...

  3. 2010 Transmission Reliability Program Peer Review | Department of Energy

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

    Transmission Reliability Program Peer Review 2010 Transmission Reliability Program Peer Review The Transmission Reliability research area focuses on two key areas: 1) Real-Time Grid Reliability Management and 2) Reliability and Markets. The first area develops monitoring and analysis tools that process synchrophasor data to enable real-time assessment of grid status and stability margins, with the goal of improving power system reliability and visibility through wide-area measurement and

  4. 2013 Reliability & Markets Peer Review | Department of Energy

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

    Reliability & Markets Peer Review 2013 Reliability & Markets Peer Review The Transmission Reliability R&D Reliability & Markets Peer Review included 13 presentations over 2 days on August 6 - 7, 2013 at Cornell University in Ithaca, NY. Presentations are available through the links. The agenda and list of presentations are included below. The Reliability and Markets activity of the Transmission Reliability program researches, develops, and implements electricity infrastructure

  5. Scoping study on trends in the economic value of electricity reliability to the U.S. economy

    SciTech Connect (OSTI)

    Eto, Joseph; Koomey, Jonathan; Lehman, Bryan; Martin, Nathan; Mills, Evan; Webber, Carrie; Worrell, Ernst

    2001-06-01

    During the past three years, working with more than 150 organizations representing public and private stakeholders, EPRI has developed the Electricity Technology Roadmap. The Roadmap identifies several major strategic challenges that must be successfully addressed to ensure a sustainable future in which electricity continues to play an important role in economic growth. Articulation of these anticipated trends and challenges requires a detailed understanding of the role and importance of reliable electricity in different sectors of the economy. This report is intended to contribute to that understanding by analyzing key aspects of trends in the economic value of electricity reliability in the U.S. economy. We first present a review of recent literature on electricity reliability costs. Next, we describe three distinct end-use approaches for tracking trends in reliability needs: (1) an analysis of the electricity-use requirements of office equipment in different commercial sectors; (2) an examination of the use of aggregate statistical indicators of industrial electricity use and economic activity to identify high reliability-requirement customer market segments; and (3) a case study of cleanrooms, which is a cross-cutting market segment known to have high reliability requirements. Finally, we present insurance industry perspectives on electricity reliability as an example of a financial tool for addressing customers' reliability needs.

  6. Guide to Using Combined Heat and Power for Enhancing Reliability...

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

    Using Combined Heat and Power for Enhancing Reliability and Resiliency in Buildings Guide to Using Combined Heat and Power for Enhancing Reliability and Resiliency in Buildings During ...

  7. The Business Case for Fuel Cells 2013: Reliability, Resiliency...

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

    3: Reliability, Resiliency & Savings The Business Case for Fuel Cells 2013: Reliability, Resiliency & Savings This report, compiled by Fuel Cells 2000 with support from the Fuel ...

  8. CHP SYSTEM AT FOOD PROCESSING PLANT INCREASES RELIABILITY AND...

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

    CHP SYSTEM AT FOOD PROCESSING PLANT INCREASES RELIABILITY AND REDUCES EMISSIONS - CASE STUDY, 2015 CHP SYSTEM AT FOOD PROCESSING PLANT INCREASES RELIABILITY AND REDUCES EMISSIONS -...

  9. Self-Reliability and Motivation in a Nuclear Security Culture...

    Office of Scientific and Technical Information (OSTI)

    Conference: Self-Reliability and Motivation in a Nuclear Security Culture Enhancement Program Citation Details In-Document Search Title: Self-Reliability and Motivation in a ...

  10. The Business Case for Fuel Cells 2013: Reliability, Resiliency...

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

    The Business Case for Fuel Cells 2013: Reliability, Resiliency & Savings The Business Case for Fuel Cells 2013: Reliability, Resiliency & Savings This report, compiled by Fuel ...

  11. Electricity Reliability Council of Texas (ERCOT) | Open Energy...

    Open Energy Info (EERE)

    Electricity Reliability Council of Texas (ERCOT) Jump to: navigation, search The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 22 million...

  12. Microsoft PowerPoint - Sandia CREW 2013 Wind Plant Reliability...

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

    Nuclear Security Administration under contract DE-AC04-94AL85000. Wind Plant Reliability Benchmark September 2013 Continuous Reliability Enhancement for Wind (CREW)...

  13. Microsoft Word - Sandia CREW 2012 Wind Plant Reliability Benchmark...

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

    2-7328 Unlimited Release September 2012 Continuous Reliability Enhancement for Wind (CREW) Database: Wind Plant Reliability Benchmark Valerie A. Peters, Alistair B. Ogilvie, Cody...

  14. Microsoft Word - Sandia CREW 2013 Wind Plant Reliability Benchmark...

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

    3-7288 Unlimited Release September 2013 Continuous Reliability Enhancement for Wind (CREW) Database: Wind Plant Reliability Benchmark Valerie A. Hines, Alistair B. Ogilvie, Cody R....

  15. Thermal Stress and Reliability for Advanced Power Electronics...

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

    Thermal Performance and Reliability of Bonded Interfaces Physics of Failure of Electrical Interconnects Thermal Stress and Reliability for Advanced Power Electronics and Electric ...

  16. Project Profile: Physics-Based Reliability Models for Supercritical...

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

    Physics-Based Reliability Models for Supercritical-CO2 Turbomachinery Components Project Profile: Physics-Based Reliability Models for Supercritical-CO2 Turbomachinery Components ...

  17. Office of Electricity Delivery & Energy Reliability FY 2012 Budget...

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

    Office of Electricity Delivery & Energy Reliability FY 2012 Budget Request Presentation Office of Electricity Delivery & Energy Reliability FY 2012 Budget Request Presentation ...

  18. Now Available: Smart Grid Investments Improve Grid Reliability...

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

    Improve Grid Reliability, Resilience, and Storm Responses (November 2014) Now Available: Smart Grid Investments Improve Grid Reliability, Resilience, and Storm Responses ...

  19. Characterizing wind power resource reliability in southern Africa...

    Office of Scientific and Technical Information (OSTI)

    DOE PAGES Search Results Published Article: Characterizing wind power resource reliability in southern Africa Title: Characterizing wind power resource reliability in southern...

  20. Electro-thermal-mechanical Simulation and Reliability for Plug...

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

    Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle ...

  1. ORISE: Inter-rater Reliability brings Standardization to Scientific...

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

    Standardization of Scientific Peer Reviews Inter-Rater Reliability (IRR): new initiative ... a new initiative termed "inter-rater reliability" or IRR. Although IRR may have a ...

  2. NREL: Photovoltaics Research - NREL Hosts PV Module Reliability...

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

    Reliability Workshop for Industry March 1, 2016 Nearly 200 researchers from more than 100 companies and representing 16 countries attended the 7th annual PV Module Reliability ...

  3. NREL: Performance and Reliability R&D - Webmaster

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

    Your email address: Your message: Send Message Printable Version Performance & Reliability Home Capabilities Real-Time Reliability Accelerated Testing Standards Development ...

  4. NREL: Performance and Reliability R&D - Industry Workshop and...

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

    Reliability Each year, NREL researchers, along with solar companies and other national lab researchers, participate in an industry workshop on photovoltaic (PV) reliability, ...

  5. Manufacturing Metrology for c-Si Module Reliability/Durabiltiy...

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

    Reliability Workshop, February 26 - 27 2013, Golden, Colorado PDF icon pvmrw13ps1fsecrogers.pdf More Documents & Publications Agenda for the PV Module Reliability Workshop, ...

  6. Office of Electricity Delivery And Energy Reliability To Hold...

    Office of Environmental Management (EM)

    Delivery And Energy Reliability To Hold Technical Conference On The Design Of Future Electric Transmission Office of Electricity Delivery And Energy Reliability To Hold Technical ...

  7. Thermal Stress and Reliability for Advanced Power Electronics...

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

    Thermal Stress and Reliability for Advanced Power Electronics and Electric Machines Power Electronic Thermal System Performance and Integration Thermal Performance and Reliability ...

  8. Microsoft PowerPoint - NERC Reliability Standards and Mandatory...

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

    NERC Reliability NERC Reliability Standards and Standards and Mandatory Compliance Mandatory Compliance Hydro Hydro - - Power Conference Power Conference June 13, 2007 June 13, ...

  9. NREL: Solar Research - NREL Hosts PV Module Reliability Workshop...

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

    Reliability Workshop for Industry March 1, 2016 Nearly 200 researchers from more than 100 companies and representing 16 countries attended the 7th annual PV Module Reliability ...

  10. NWTC Collaborative Increases Gearbox Reliability and Helps Reduce...

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

    Collaborative Increases Gearbox Reliability and Helps Reduce Cost of Wind Energy A ... (NWTC) leads to wind turbine gearbox reliability and lowers the cost of wind energy. ...

  11. Ensuring a Reliable Bulk Electric System | Department of Energy

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

    Electric Reliability Corporation (NERC): Ensuring a Reliable Bulk Electric System Cooling Tower Report, October 2008 Transmission Constraints and Congestion in the Western...

  12. Office of Electricity Delivery & Energy Reliability FY 2012 Budget...

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

    & Energy Reliability FY 2012 Budget Request Presentation Presentation by Patricia Hoffman of the Office of Electricity Delivery & Energy Reliability FY 2012 Budget Request....

  13. Science-based MEMS reliability methodology. (Conference) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Science-based MEMS reliability methodology. Citation Details In-Document Search Title: Science-based MEMS reliability methodology. No abstract prepared. Authors: Walraven, Jeremy ...

  14. Competition and Reliability in North American Energy Markets...

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

    Energy Markets: Issue Paper Synopses Competition and Reliability in North American Energy ... effect on the reliability of the North American power system and constitute the ...

  15. Competition and Reliability in North American Energy Markets...

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

    effect on the reliability of the North American power system and constitute the ... these concerns. "Ensuring a Reliable North American Electric System in a Competitive ...

  16. Effect of Jatropha based Biodiesel, on Engine Hardware Reliability...

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

    Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance Effect of Jatropha based Biodiesel, on Engine Hardware Reliability, Emission and Performance ...

  17. 2014 Human Reliability Program Workshop Agenda | Department of...

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

    September 17-19, 2014 2014 DOE Human Reliability Program Workshop And Webinar Agenda DOE ... 10 Code of Federal Regulations Part 712, Human Reliability Program INSPECTION REPORT: ...

  18. Reliability centered maintenance for substation equipment

    SciTech Connect (OSTI)

    1996-08-01

    This paper is a collection of training materials on the principles and implementation of reliability centered maintenance. The main areas discussed in this presentation are organized as follows: RCM principles and concepts; RCM tools, resources and methods; overview of the RCM process; example RCM application; living PM program; RCM implementation experience.

  19. Reliable High Performance Peta- and Exa-Scale Computing

    SciTech Connect (OSTI)

    Bronevetsky, G

    2012-04-02

    As supercomputers become larger and more powerful, they are growing increasingly complex. This is reflected both in the exponentially increasing numbers of components in HPC systems (LLNL is currently installing the 1.6 million core Sequoia system) as well as the wide variety of software and hardware components that a typical system includes. At this scale it becomes infeasible to make each component sufficiently reliable to prevent regular faults somewhere in the system or to account for all possible cross-component interactions. The resulting faults and instability cause HPC applications to crash, perform sub-optimally or even produce erroneous results. As supercomputers continue to approach Exascale performance and full system reliability becomes prohibitively expensive, we will require novel techniques to bridge the gap between the lower reliability provided by hardware systems and users unchanging need for consistent performance and reliable results. Previous research on HPC system reliability has developed various techniques for tolerating and detecting various types of faults. However, these techniques have seen very limited real applicability because of our poor understanding of how real systems are affected by complex faults such as soft fault-induced bit flips or performance degradations. Prior work on such techniques has had very limited practical utility because it has generally focused on analyzing the behavior of entire software/hardware systems both during normal operation and in the face of faults. Because such behaviors are extremely complex, such studies have only produced coarse behavioral models of limited sets of software/hardware system stacks. Since this provides little insight into the many different system stacks and applications used in practice, this work has had little real-world impact. My project addresses this problem by developing a modular methodology to analyze the behavior of applications and systems during both normal and faulty

  20. Regional Partnerships

    Broader source: Energy.gov [DOE]

    DOE has created a network of seven Regional Carbon Sequestration Partnerships (RCSPs) to help develop the technology, infrastructure, and regulations to implement large-scale CO2 storage (also...

  1. Region Overview

    Energy Savers [EERE]

    ... Power Plants: 1,858 (30% total U.S.) Coal-fired: 167 (30% total U.S.) Petroleum-fired: ... leading cause of natural gas processing plant disruptions in the East Coast Region from ...

  2. Region Overview

    Energy Savers [EERE]

    Power Plants: 666 (11% total U.S.) Coal-fired: 46 (8% total U.S.) Petroleum-fired: 39 ... leading cause of natural gas processing plant disruptions in the Gulf Coast Region from ...

  3. Region Overview

    Energy Savers [EERE]

    Power Plants: 429 (8% total U.S.) Coal-fired: 46 (8% total U.S.) Petroleum-fired: 26 ... leading cause of natural gas processing plant disruptions in the Rocky Mountain Region ...

  4. Region Overview

    Energy Savers [EERE]

    ... Power Plants: 2,006 (30% total U.S.) Coal-fired: 274 (49% total U.S.) Petroleum-fired: ... leading cause of natural gas processing plant disruptions in the Midwest region from ...

  5. Region Overview

    Energy Savers [EERE]

    Power Plants: 1,407 (24% total U.S.) Coal-fired: 24 (4% total U.S.) Petroleum-fired: 131 ... leading cause of natural gas processing plant disruptions in the West Coast Region's ...

  6. NREL: Performance and Reliability R&D - Real-Time Reliability R&D

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

    Real-Time Reliability R&D NREL's scientists and engineers study long-term performance, reliability, and failures of PV components and systems both in house and via external collaborations. Through analysis, they quantify long-term degradation and then share the results with the PV community. Real-time reliability R&D focuses on these two primary areas: Failure analysis Outdoor Testing PV Modules and Small Systems Photo of a building on the left with a tiered roof that has photovoltaic

  7. Competition and Reliability in North American Electricity Markets Technical

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

    Workshop | Department of Energy Electricity Markets Technical Workshop Competition and Reliability in North American Electricity Markets Technical Workshop Competition and Reliability in North American Electricity Markets Technical Workshop Competition and Reliability in North American Electricity Markets Technical Workshop (481.75 KB) More Documents & Publications The Relationship between Competitive Power Markets and Grid Reliability. Blackout 2003: Electric System Working Group

  8. Strategies for assuring operational reliability of process units: A team effort

    SciTech Connect (OSTI)

    Merlano, N.; Ramirez, J.E.; Merchan, R.

    1996-12-01

    Operational reliability and low operational costs are becoming an important issue in Latin-American Industries. Programs promoting structural integrity and life assessment are becoming part of the strategies of industry to cope with increasingly competitive markets. However, structural integrity and life assessment is not all that is required to attain the goal of operational reliability; it is necessary to integrate in the assessment strategy the relationship between process variables, operational variables, maintenance, inspection, materials science and even instrument reliability. It is also important to take into account environmental regulations and personnel safety. A recent experimental program, aimed at developing and implementing a strategy which combines all the above mentioned aspects, has been undertaken. This article briefly describes an internal ``Guide for Operational Reliability`` developed as part of the program and discusses the Fitness-For-Service assessment of a cracked tower carried out during the first phase of the program.

  9. Fatigue and Reliability of Wind Turbines

    Energy Science and Technology Software Center (OSTI)

    1995-08-17

    FAROW is a computer program that assists in the probalistic analysis of the Fatigue and Reliabiity of Wind turbines. The fatigue lifetime of wind turbine components is calculated using functional forms for important input quantities. Parameters of these functions are defined in an input file as either constants or random variables. The user can select from a library of random variable distribution functions. FAROW uses structural reliability techniques to calculate the mean time to failure,more » probability of failure before a target lifetime, relative importance of each of the random inputs, and the sensitivity of the reliability to all input parameters. Monte Carlo simulation is also available.« less

  10. Bridging Resilience Engineering and Human Reliability Analysis

    SciTech Connect (OSTI)

    Ronald L. Boring

    2010-06-01

    There has been strong interest in the new and emerging field called resilience engineering. This field has been quick to align itself with many existing safety disciplines, but it has also distanced itself from the field of human reliability analysis. To date, the discussion has been somewhat one-sided, with much discussion about the new insights afforded by resilience engineering. This paper presents an attempt to address resilience engineering from the perspective of human reliability analysis (HRA). It is argued that HRA shares much in common with resilience engineering and that, in fact, it can help strengthen nascent ideas in resilience engineering. This paper seeks to clarify and ultimately refute the arguments that have served to divide HRA and resilience engineering.

  11. Reliability Estimation for Double Containment Piping

    SciTech Connect (OSTI)

    L. Cadwallader; T. Pinna

    2012-08-01

    Double walled or double containment piping is considered for use in the ITER international project and other next-generation fusion device designs to provide an extra barrier for tritium gas and other radioactive materials. The extra barrier improves confinement of these materials and enhances safety of the facility. This paper describes some of the design challenges in designing double containment piping systems. There is also a brief review of a few operating experiences of double walled piping used with hazardous chemicals in different industries. This paper recommends approaches for the reliability analyst to use to quantify leakage from a double containment piping system in conceptual and more advanced designs. The paper also cites quantitative data that can be used to support such reliability analyses.

  12. Electronic logic for enhanced switch reliability

    DOE Patents [OSTI]

    Cooper, J.A.

    1984-01-20

    A logic circuit is used to enhance redundant switch reliability. Two or more switches are monitored for logical high or low output. The output for the logic circuit produces a redundant and fail-safe representation of the switch outputs. When both switch outputs are high, the output is high. Similarly, when both switch outputs are low, the logic circuit's output is low. When the output states of the two switches do not agree, the circuit resolves the conflict by memorizing the last output state which both switches were simultaneously in and produces the logical complement of this output state. Thus, the logic circuit of the present invention allows the redundant switches to be treated as if they were in parallel when the switches are open and as if they were in series when the switches are closed. A failsafe system having maximum reliability is thereby produced.

  13. Reliability assessment of underground shaft closure

    SciTech Connect (OSTI)

    Fossum, A.F.

    1994-12-31

    The intent of the WIPP, being constructed in the bedded geologic salt deposits of Southeastern New Mexico, is to provide the technological basis for the safe disposal of radioactive Transuranic (TRU) wastes generated by the defense programs of the United States. In determining this technological basis, advanced reliability and structural analysis techniques are used to determine the probability of time-to-closure of a hypothetical underground shaft located in an argillaceous salt formation and filled with compacted crushed salt. Before being filled with crushed salt for sealing, the shaft provides access to an underground facility. Reliable closure of the shaft depends upon the sealing of the shaft through creep closure and recompaction of crushed backfill. Appropriate methods are demonstrated to calculate cumulative distribution functions of the closure based on laboratory determined random variable uncertainty in salt creep properties.

  14. Reliability, O&M, Standards Development

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

    Reliability, O&M, Standards Development - 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 Energy Defense Waste Management

  15. Reliability of natural gas cogeneration systems

    SciTech Connect (OSTI)

    1995-12-01

    Cogeneration systems fueled by natural gas exceed the reliability of most central station power generating units, according to a study conducted by RINC Corporation for Gas Research Institute (GRI). In the study, researchers obtained operating data from 122 natural gas cogeneration units nationwide representing 2,200 megawatts (MW) of capacity and nearly 2 million hours of operating time at 37 facilities. Units were grouped into categories reflecting size (from 60 kilowatts to 100 MW), type of system (gas engine or gas turbine technology), use of emission controls, and type of thermal application. Various types and sizes of gas systems reported average availability factors ranging from 90.0 to 95.8 versus a weighted average of 85.9 percent for fossil-fuel steam, nuclear, and gas-turbine-based central station power generating units. Comparisons are based on study data and data reported by the North American Electric Reliability Council for utility power plants. Gas cogeneration can improve utility operations because as a group the relatively small, dispersed cogeneration units are more reliable than one or more large central station units of similar capacity.

  16. Human Reliability Analysis for Design: Using Reliability Methods for Human Factors Issues

    SciTech Connect (OSTI)

    Ronald Laurids Boring

    2010-11-01

    This paper reviews the application of human reliability analysis methods to human factors design issues. An application framework is sketched in which aspects of modeling typically found in human reliability analysis are used in a complementary fashion to the existing human factors phases of design and testing. The paper provides best achievable practices for design, testing, and modeling. Such best achievable practices may be used to evaluate and human system interface in the context of design safety certifications.

  17. About the Office of Electricity Delivery and Energy Reliability |

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

    Department of Energy the Office of Electricity Delivery and Energy Reliability About the Office of Electricity Delivery and Energy Reliability About the Office of Electricity Delivery and Energy Reliability The Office of Electricity Delivery and Energy Reliability (OE) provides national leadership to ensure that the Nation's energy delivery system is secure, resilient and reliable. OE works to develop new technologies to improve the infrastructure that brings electricity into our homes,

  18. Report on the analysis of field data relating to the reliability of solar hot water systems.

    SciTech Connect (OSTI)

    Menicucci, David F.

    2011-07-01

    Utilities are overseeing the installations of thousand of solar hot water (SHW) systems. Utility planners have begun to ask for quantitative measures of the expected lifetimes of these systems so that they can properly forecast their loads. This report, which augments a 2009 reliability analysis effort by Sandia National Laboratories (SNL), addresses this need. Additional reliability data have been collected, added to the existing database, and analyzed. The results are presented. Additionally, formal reliability theory is described, including the bathtub curve, which is the most common model to characterize the lifetime reliability character of systems, and for predicting failures in the field. Reliability theory is used to assess the SNL reliability database. This assessment shows that the database is heavily weighted with data that describe the reliability of SHW systems early in their lives, during the warranty period. But it contains few measured data to describe the ends of SHW systems lives. End-of-life data are the most critical ones to define sufficiently the reliability of SHW systems in order to answer the questions that the utilities pose. Several ideas are presented for collecting the required data, including photometric analysis of aerial photographs of installed collectors, statistical and neural network analysis of energy bills from solar homes, and the development of simple algorithms to allow conventional SHW controllers to announce system failures and record the details of the event, similar to how aircraft black box recorders perform. Some information is also presented about public expectations for the longevity of a SHW system, information that is useful in developing reliability goals.

  19. Triggering requirements for SSC physics

    SciTech Connect (OSTI)

    Gilchriese, M.G.D.

    1989-04-01

    Some aspects of triggering requirements for high P{sub T} physics processes at the Superconducting Super Collider (SSC) are described. A very wide range of trigger types will be required to enable detection of the large number of potential physics signatures possible at the SSC. Although in many cases trigger rates are not now well understood, it is possible to conclude that the ability to trigger on transverse energy, number and energy of jets, number and energy of leptons (electrons and muons), missing energy and combinations of these will be required. An SSC trigger system must be both highly flexible and redundant to ensure reliable detection of many new physics processes at the SSC.

  20. Final report on reliability and lifetime prediction.

    SciTech Connect (OSTI)

    Gillen, Kenneth Todd; Wise, Jonathan; Jones, Gary D.; Causa, Al G.; Terrill, Edward R.; Borowczak, Marc

    2012-12-01

    This document highlights the important results obtained from the subtask of the Goodyear CRADA devoted to better understanding reliability of tires and to developing better lifetime prediction methods. The overall objective was to establish the chemical and physical basis for the degradation of tires using standard as well as unique models and experimental techniques. Of particular interest was the potential application of our unique modulus profiling apparatus for assessing tire properties and for following tire degradation. During the course of this complex investigation, extensive relevant information was generated, including experimental results, data analyses and development of models and instruments. Detailed descriptions of the findings are included in this report.

  1. Predicting the reliability of electronic circuits.

    SciTech Connect (OSTI)

    Loescher, Douglas H.

    2004-06-01

    Procedures to predict the reliability of electrical circuits are discussed. Three cases are introduced and discussed. In Case 1, an analyst predicts the probability of any failure in the intended relations between circuit inputs and circuit outputs. In Case 2, an analyst predicts the probability that specified unintended outputs would occur. In Case 3, an analyst considers coupling between circuits. Logic models are given for the three cases, and sources of failure probabilities of components are mentioned. Methods of analysis are given, software tools are mentioned, and recommendations for presentation and review of results are discussed.

  2. Reliability and Maintainability Data for Liquid Metal Cooling Systems

    SciTech Connect (OSTI)

    Cadwallader, Lee Charles

    2015-05-01

    One of the coolants of interest for future fusion breeding blankets is lead-lithium. As a liquid metal it offers the advantages of high temperature operation for good station efficiency, low pressure, and moderate flow rate. This coolant is also under examination for use in test blanket modules to be used in the ITER international project. To perform reliability, availability, maintainability and inspectability (RAMI) assessment as well as probabilistic safety assessment (PSA) of lead-lithium cooling systems, component failure rate data are needed to quantify the system models. RAMI assessment also requires repair time data and inspection time data. This paper presents a new survey of the data sets that are available at present to support RAMI and PSA quantification. Recommendations are given for the best data values to use when quantifying system models.

  3. Continuous Reliability Enhancement for Wind (CREW) database : wind plant reliability benchmark.

    SciTech Connect (OSTI)

    Hines, Valerie Ann-Peters; Ogilvie, Alistair B.; Bond, Cody R.

    2013-09-01

    To benchmark the current U.S. wind turbine fleet reliability performance and identify the major contributors to component-level failures and other downtime events, the Department of Energy funded the development of the Continuous Reliability Enhancement for Wind (CREW) database by Sandia National Laboratories. This report is the third annual Wind Plant Reliability Benchmark, to publically report on CREW findings for the wind industry. The CREW database uses both high resolution Supervisory Control and Data Acquisition (SCADA) data from operating plants and Strategic Power Systems' ORAPWind%C2%AE (Operational Reliability Analysis Program for Wind) data, which consist of downtime and reserve event records and daily summaries of various time categories for each turbine. Together, these data are used as inputs into CREW's reliability modeling. The results presented here include: the primary CREW Benchmark statistics (operational availability, utilization, capacity factor, mean time between events, and mean downtime); time accounting from an availability perspective; time accounting in terms of the combination of wind speed and generation levels; power curve analysis; and top system and component contributors to unavailability.

  4. Renewable Generation Requirement

    Broader source: Energy.gov [DOE]

    According to the annual compliance report prepared by the Electric Reliability Council of Texas (ERCOT), the program administrator for the Texas Renewable Energy Credit Trading Program, Texas sur...

  5. Towards a Scalable and Reliable Real Time In-Network Data Analysis Infrastructure

    SciTech Connect (OSTI)

    Ciraci, Selim; Yin, Jian

    2011-12-01

    The smart grid applications requires real time analysis, response within the order of milliseconds and high-reliability because of the mission critical structure of the power grid system. The only way to satisfy these requirements is in network data analysis and build-in redundancy routing for failures. To achieve this, we propose a data dissemination system that builds routes using network flow algorithms, have in network processing of the data and utilize data encoding to cope with high latencies.

  6. Human Reliability Program - Tools for Clinicians | Department...

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

    Medications that require reporting and Medical Records Checklist that will assist providers in obtaining documentation necessary for making eligibility determination. Medications ...

  7. Regional Information

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

    Regional Information There is plenty to do and see in the cities of Golden and Denver, Colorado. Here you'll find links to general information about these areas, plus hospitals, local universities and colleges, entertainment, sports, amusement parks, and more. Golden City of Golden Golden's 2-Hour Vacation Denver www.denver.com www.denver.org Denver Public Library Colorado State of Colorado Colorado tourism Transportation (Bus and Light Rail) RTD Hospitals Largest Hospitals in Metro Denver

  8. Real Time Grid Reliability Management 2005

    SciTech Connect (OSTI)

    Eto, Joe; Eto, Joe; Lesieutre, Bernard; Lewis, Nancy Jo; Parashar, Manu

    2008-07-07

    The increased need to manage California?s electricity grid in real time is a result of the ongoing transition from a system operated by vertically-integrated utilities serving native loads to one operated by an independent system operator supporting competitive energy markets. During this transition period, the traditional approach to reliability management -- construction of new transmission lines -- has not been pursued due to unresolved issues related to the financing and recovery of transmission project costs. In the absence of investments in new transmission infrastructure, the best strategy for managing reliability is to equip system operators with better real-time information about actual operating margins so that they can better understand and manage the risk of operating closer to the edge. A companion strategy is to address known deficiencies in offline modeling tools that are needed to ground the use of improved real-time tools. This project: (1) developed and conducted first-ever demonstrations of two prototype real-time software tools for voltage security assessment and phasor monitoring; and (2) prepared a scoping study on improving load and generator response models. Additional funding through two separate subsequent work authorizations has already been provided to build upon the work initiated in this project.

  9. Novel Low Cost, High Reliability Wind Turbine Drivetrain

    SciTech Connect (OSTI)

    Chobot, Anthony; Das, Debarshi; Mayer, Tyler; Markey, Zach; Martinson, Tim; Reeve, Hayden; Attridge, Paul; El-Wardany, Tahany

    2012-09-13

    Clipper Windpower, in collaboration with United Technologies Research Center, the National Renewable Energy Laboratory, and Hamilton Sundstrand Corporation, developed a low-cost, deflection-compliant, reliable, and serviceable chain drive speed increaser. This chain and sprocket drivetrain design offers significant breakthroughs in the areas of cost and serviceability and addresses the key challenges of current geared and direct-drive systems. The use of gearboxes has proven to be challenging; the large torques and bending loads associated with use in large multi-MW wind applications have generally limited demonstrated lifetime to 8-10 years [1]. The large cost of gearbox replacement and the required use of large, expensive cranes can result in gearbox replacement costs on the order of $1M, representing a significant impact to overall cost of energy (COE). Direct-drive machines eliminate the gearbox, thereby targeting increased reliability and reduced life-cycle cost. However, the slow rotational speeds require very large and costly generators, which also typically have an undesirable dependence on expensive rare-earth magnet materials and large structural penalties for precise air gap control. The cost of rare-earth materials has increased 20X in the last 8 years representing a key risk to ever realizing the promised cost of energy reductions from direct-drive generators. A common challenge to both geared and direct drive architectures is a limited ability to manage input shaft deflections. The proposed Clipper drivetrain is deflection-compliant, insulating later drivetrain stages and generators from off-axis loads. The system is modular, allowing for all key parts to be removed and replaced without the use of a high capacity crane. Finally, the technology modularity allows for scalability and many possible drivetrain topologies. These benefits enable reductions in drivetrain capital cost by 10.0%, levelized replacement and O&M costs by 26.7%, and overall cost of

  10. Reliable fuel source | Y-12 National Security Complex

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

    Reliable fuel source Reliable fuel source Posted: February 7, 2013 - 7:00pm | Y-12 Report | Volume 9, Issue 2 | 2013 Y-12 provides the U.S. Navy with feedstock from retired weapons ...