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Sample records for blackout doe grid

  1. Postmortem analysis of power grid blackouts - The role of measurement systems

    SciTech Connect (OSTI)

    Dagle, Jeffery E.

    2006-09-01

    Promptly following any blackout, an investigation is conducted to determine the who, what, where, when, why, and how. For system operators, it is important to quickly grasp the scale and magnitude of the event and rapidly restore service. Then a broader set of stakeholders get involved to assess system performance, determine root causes, compile lessons learned, and develop recommendations. At the heart of the post-mortem investigation is the detailed sequence of events. As accurately as possible, investigators need to know what happened and when. Especially during a cascading failure where events occur rapidly, accurate timing is crucial to understanding how the event unfolded so that the root causes can be determined. The sequence of events is based on vast amounts of data collected from multiple points in the system from a myriad of data collection instruments, some devoted to the purpose of supporting system disturbance post mortem analysis, others providing useful additional context or filling in missing gaps. The more that the investigators know about their available sources of data, and the inherent limitations of each, the better (and quicker) will be the analysis. This is especially important when a large blackout has occurred; there is pressure to find answers quickly, but due to the size and complexity of the event, a deliberate and methodical investigation is necessary. This article discusses the role that system monitoring plays in supporting the investigation of large-scale system disruptions and blackouts.

  2. smart grid | netl.doe.gov

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

    smart grid Accelerating the transition to a Smart Grid in the United States through the development of implementation strategies and tools. Click to start The Modern Grid Strategy Video Click on the graphic above to start the Modern Grid Strategy video. NETL Smart Grid Initiatives Summary The National Energy Technology Laboratory is involved in a variety of smart grid and modern grid activities on behalf of the DOE Office of Electricity Delivery and Energy Reliability (OE), DOE Office of Energy

  3. DOE Announces New Projects to Modernize America's Electric Grid | Grid

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

    Modernization | NREL DOE Announces New Projects to Modernize America's Electric Grid NREL to co-lead DOE's multi-lab Grid Modernization Laboratory Consortium January 14, 2016 Today, U.S. Department of Energy Secretary Ernest Moniz announced up to $220 million in new funding for a consortium of DOE national laboratories and partners to support critical research and development over the next three years to help modernize our nation's electrical power grid. The secretary also announced the

  4. Blackout 2003: Blackout Final Implementation Report | Department...

    Energy Savers [EERE]

    Blackout Risk D:0myfilesBlackout ProgressBlackout-Progress.vp U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations

  5. smart grid publications | netl.doe.gov

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

    Publications Articles-Examples of articles are publications in newsletters, journals, magazines, and conference proceedings. Results from DOE's ARRA Smart Grid Program Success Stories in DOE's ARRA Smart Grid Program Dodrill, Keith and Steven Bossart, Charging the Nation: West Virginia's Vast Power Portfolio, Summer 2011, West Virginia Executive Magazine, p. 27-29. Bossart, Steven. The Smart Grid: Transforming Electricity's Distribution. West Virginia Executive, Summer 2009 (p. 99-101). Bossart,

  6. DOE Grid Tech Team | Department of Energy

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

    Tech Team DOE Grid Tech Team DOE Grid Tech Team Overview Access to reliable, cost-effective electricity is critical for economic growth and continued American prosperity. But our electric infrastructure is facing new stresses as a result of aging assets, environmental sustainability requirements, consumers adding energy back into the electric system, increasing global temperatures, extreme weather events, and growing cybersecurity concerns. We are moving towards a more digitized economy with a

  7. DOE Announces $220 Million in Grid Modernization Funding | Department of

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

    Energy 20 Million in Grid Modernization Funding DOE Announces $220 Million in Grid Modernization Funding January 14, 2016 - 12:55pm Addthis Grid Modernization Initiative releases multi-year plan and awards funding for groundbreaking DOE-wide Grid Modernization Laboratory Consortium. | Graphic by <a href="/node/1332956">Carly Wilkins</a>, Energy Department Grid Modernization Initiative releases multi-year plan and awards funding for groundbreaking DOE-wide Grid

  8. DOE Releases Maturity Model to Better Protect the Nation's Grid...

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

    Maturity Model to Better Protect the Nation's Grid from Cybersecurity Threats DOE Releases Maturity Model to Better Protect the Nation's Grid from Cybersecurity Threats May 31, 2012 ...

  9. Southern Company: DOE Smart Grid RFI Addressing Policy and Logistical

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

    Challenges | Department of Energy Southern Company: DOE Smart Grid RFI Addressing Policy and Logistical Challenges Southern Company: DOE Smart Grid RFI Addressing Policy and Logistical Challenges Southern Company: DOE Smart Grid RFI Addressing Policy and Logistical Challenges. Southern recognizes that many policy and logistical concerns must be addressed for the promises of smart grid technologies and applications to be fully realized in ways that are beneficial, secure, and cost-effective

  10. Blackout 2003: Summary of Comments from Forum and Email | Department of

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

    Energy Summary of Comments from Forum and Email Blackout 2003: Summary of Comments from Forum and Email This Excel file is a summary of all comments and recommendations received by DOE on the Blackout Report via email and the Blackout Forum as of 1-12-04. Summary of Comments from Forum and Email (170.5 KB) More Documents & Publications Blackout 2003: Blackout Final Implementation Report Blackout 2003: Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes

  11. DOE Announces New Projects to Modernize America's Electric Grid |

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

    Buildings | NREL DOE Announces New Projects to Modernize America's Electric Grid NREL to co-lead DOE's multi-lab Grid Modernization Laboratory Consortium January 14, 2016 Today, U.S. Department of Energy Secretary Ernest Moniz announced up to $220 million in new funding for a consortium of DOE national laboratories and partners to support critical research and development over the next three years to help modernize our nation's electrical power grid. The secretary also announced the release

  12. DOE Announces New Projects to Modernize America's Electric Grid | Energy

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

    Systems Integration | NREL DOE Announces New Projects to Modernize America's Electric Grid NREL to co-lead DOE's multi-lab Grid Modernization Laboratory Consortium January 14, 2016 Today, U.S. Department of Energy Secretary Ernest Moniz announced up to $220 million in new funding for a consortium of DOE national laboratories and partners to support critical research and development over the next three years to help modernize our nation's electrical power grid. The secretary also announced

  13. Southern Company: DOE Smart Grid RFI Addressing Policy and Logistical...

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

    Re: DOE Request for Information - Implementing the National Broadband Plan by Studying the Communications Requirements of Electric Utilities to Inform Federal Smart Grid Policy ...

  14. DOE Grid Modernization Laboratory Consortium (GMLC) - Awards | Department

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

    of Energy Modernization Laboratory Consortium (GMLC) - Awards DOE Grid Modernization Laboratory Consortium (GMLC) - Awards A modern electricity grid is vital to the Nation's security, economy and modern way of life, providing the foundation for essential services that Americans rely on every day. The Nation's power grid, however, is aging and faces a future for which it was not designed. The Energy Department's Grid Modernization Initiative (GMI) represents a comprehensive effort to help

  15. DRSG Comments to DOE Smart Grid RFI: Addressing Policy and Logistical...

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

    Policy and Logistical Challenges to Smart Grid Implementation" Submitted by the Demand Response and Smart Grid Coalition (DRSG) November 1, 2010 DRSG Comments to DOE Smart Grid ...

  16. Blackout Final Implementation Report

    Energy Savers [EERE]

    ... and Northeast and in Ontario, and why the blackout was not contained; and ii) to recommend measures to reduce the risk of future power outages and the scope of any that do occur. ...

  17. DOE Science Showcase - DOE's Smart Grid Research | OSTI, US Dept...

    Office of Scientific and Technical Information (OSTI)

    DOE Technology Transfer E-print Network Science Conference Proceedings Science Open Access Journals DOE Green Energy Related links of interest DOE Office of Electricity Delivery & ...

  18. Sandia to participate in upcoming DOE Grid Modernization Regional Workshops

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

    upcoming DOE Grid Modernization Regional Workshops - 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

  19. DOE Science Showcase - DOE's Smart Grid Research | OSTI, US Dept...

    Office of Scientific and Technical Information (OSTI)

    OSTI invites you to visit DOE's Science Accelerator where you can do a single search ... DOE Technology Transfer E-print Network Science Conference Proceedings Science Open ...

  20. DOE Explores Potential of Wind Power to Stabilize Electric Grids |

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

    Department of Energy Explores Potential of Wind Power to Stabilize Electric Grids DOE Explores Potential of Wind Power to Stabilize Electric Grids March 28, 2016 - 10:31am Addthis DOE’s 1.5-MW wind turbine at the National Wind Technology Center is being used to demonstrate that wind farms can provide the frequency-responsive back-up or “ancillary services” currently supplied to the electrical grid by conventional power plants. (Photo by Dennis Schroeder/National Renewable

  1. DOE Launches New Smart Grid Web Portal

    Broader source: Energy.gov [DOE]

    Today, the DOE General Counsel’s Office is launching a new Smart Gird web portal.  In October, the General Counsel’s office released two reports exploring technological and legal issues critical...

  2. Complex systems analysis of series of blackouts: cascading failure, critical points, and self-organization

    SciTech Connect (OSTI)

    Dobson, Ian [University of Wisconsin, Madison; Carreras, Benjamin A [ORNL; Lynch, Vickie E [ORNL; Newman, David E [University of Alaska

    2007-01-01

    We give an overview of a complex systems approach to large blackouts of electric power transmission systems caused by cascading failure. Instead of looking at the details of particular blackouts, we study the statistics and dynamics of series of blackouts with approximate global models. Blackout data from several countries suggest that the frequency of large blackouts is governed by a power law. The power law makes the risk of large blackouts consequential and is consistent with the power system being a complex system designed and operated near a critical point. Power system overall loading or stress relative to operating limits is a key factor affecting the risk of cascading failure. Power system blackout models and abstract models of cascading failure show critical points with power law behavior as load is increased. To explain why the power system is operated near these critical points and inspired by concepts from self-organized criticality, we suggest that power system operating margins evolve slowly to near a critical point and confirm this idea using a power system model. The slow evolution of the power system is driven by a steady increase in electric loading, economic pressures to maximize the use of the grid, and the engineering responses to blackouts that upgrade the system. Mitigation of blackout risk should account for dynamical effects in complex self-organized critical systems. For example, some methods of suppressing small blackouts could ultimately increase the risk of large blackouts.

  3. Smart Grid Research from DOE Databases | OSTI, US Dept of Energy...

    Office of Scientific and Technical Information (OSTI)

    Smart Grid Research from DOE Databases Information Bridge Energy Citations Database DOE Green Energy DOE R&D Project Summaries Science.gov About Smart Grid Secretary Chu Announces ...

  4. Comments of the Demand Response and Smart Grid Coalition on DOE...

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

    the Demand Response and Smart Grid Coalition on DOE's Implementing the National Broadband Plan by Empowering Consumers and the Smart Grid: Data Access, Third Party Use, and Privacy ...

  5. D:\0myfiles\Blackout Progress\Blackout-Progress.vp | Department of Energy

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

    D:\0myfiles\Blackout Progress\Blackout-Progress.vp D:\0myfiles\Blackout Progress\Blackout-Progress.vp D:\0myfiles\Blackout Progress\Blackout-Progress.vp (236.14 KB) More Documents & Publications Blackout 2003: The August 14, 2003 Blackout One Year Later: Actions Taken in the United States and Canada To Reduce Blackout Risk U.S. - Canada Power System Outage Task Force: Final Report on the Implementation of Task Force Recommendations Blackout 2003: Blackout Final Implementation Report

  6. D:\0myfiles\Blackout Progress\Blackout-Progress.vp

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

    August 14, 2003 Blackout One Year Later: Actions Taken in the United States and Canada To Reduce Blackout Risk Report to the U.S.-Canada Power System Outage Task Force Natural Resources Canada U.S. Department of Energy August 13, 2004 The August 14, 2003 Blackout One Year Later: Actions Taken in the United States and Canada To Reduce Blackout Risk Report to the U.S.-Canada Power System Outage Task Force August 13, 2004 Natural Resources Canada U.S. Department of Energy Acknowledgments As

  7. Los Alamos to tackle modernizing energy grid in DOE-wide Laboratory

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

    consortium Modernizing energy grid in DOE-wide Laboratory consortium Los Alamos to tackle modernizing energy grid in DOE-wide Laboratory consortium Up to $35.25 million in research funding could come to Los Alamos and its partners. January 14, 2016 The Grid Modernization Initiative represents a comprehensive DOE effort to help shape the future of our nation's grid and solve the challenges of integrating conventional and renewable sources with energy storage and smart buildings. The Grid

  8. EAC Recommendations for DOE Action Regarding U.S. Electric Grid...

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

    U.S. Electric Grid Resiliency - March 2014 EAC Recommendations for DOE Action Regarding U.S. Electric Grid Resiliency - March 2014 EAC Recommendations for DOE Action Regarding U.S. ...

  9. Comments of DRSG to DOE Smart Grid RFI: Addressing Policy and Logistical

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

    Challenges | Department of Energy DRSG to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges Comments of DRSG to DOE Smart Grid RFI: Addressing Policy and Logistical Challenges In light of the fact that smart grid deployments are moving forward with pace and at scale, DRSG advises the DOE against seeking to redefine the term "smart grid" as a semantic exercise, as such an effort would introduce delay, generate uncertainty, and likely prove counterproductive. DOE Smart

  10. Comments of the Demand Response and Smart Grid Coalition on DOE's

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

    Implementing the National Broadband Plan by Empowering Consumers and the Smart Grid: Data Access, Third Party Use, and Privacy | Department of Energy the Demand Response and Smart Grid Coalition on DOE's Implementing the National Broadband Plan by Empowering Consumers and the Smart Grid: Data Access, Third Party Use, and Privacy Comments of the Demand Response and Smart Grid Coalition on DOE's Implementing the National Broadband Plan by Empowering Consumers and the Smart Grid: Data Access,

  11. Microsoft Word - DOCS-#287906-v1-National_Grid_Comments_on_DOE_RFI_#3.DOC

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

    National Grid's Response to the Department of Energy Smart Grid RFI: Addressing Policy and Logistical Challenges of Smart Grid Implementation Dated: November 1, 2010 1 National Grid's Response to the Department of Energy Request For Information on Smart Grid Key Policy questions that must be answered Pursuant to the Request for Information entitled "Addressing Policy and Logistical Challenges to Smart Grid Implementation," issued by the Department of Energy ("DOE") Office of

  12. Comments of Santiago Grijalva: High-Level Response to DOE RFI on Smart Grid

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

    Policy | Department of Energy Santiago Grijalva: High-Level Response to DOE RFI on Smart Grid Policy Comments of Santiago Grijalva: High-Level Response to DOE RFI on Smart Grid Policy High-Level Response to DOE RFI on Smart Grid Policy: This document responds to DOE questions regarding smart grid policy. The approach followed herein is to write concise comments addressing the overall RFI document at a higher level. High-Level Response to DOE RFI on Smart Grid Policy (199.09 KB) More

  13. DOE: Quantifying the Value of Hydropower in the Electric Grid

    SciTech Connect (OSTI)

    2012-12-31

    The report summarizes research to Quantify the Value of Hydropower in the Electric Grid. This 3-year DOE study focused on defining value of hydropower assets in a changing electric grid. Methods are described for valuation and planning of pumped storage and conventional hydropower. The project team conducted plant case studies, electric system modeling, market analysis, cost data gathering, and evaluations of operating strategies and constraints. Five other reports detailing these research results are available a project website, www.epri.com/hydrogrid. With increasing deployment of wind and solar renewable generation, many owners, operators, and developers of hydropower have recognized the opportunity to provide more flexibility and ancillary services to the electric grid. To quantify value of services, this study focused on the Western Electric Coordinating Council region. A security-constrained, unit commitment and economic dispatch model was used to quantify the role of hydropower for several future energy scenarios up to 2020. This hourly production simulation considered transmission requirements to deliver energy, including future expansion plans. Both energy and ancillary service values were considered. Addressing specifically the quantification of pumped storage value, no single value stream dominated predicted plant contributions in various energy futures. Modeling confirmed that service value depends greatly on location and on competition with other available grid support resources. In this summary, ten different value streams related to hydropower are described. These fell into three categories; operational improvements, new technologies, and electricity market opportunities. Of these ten, the study was able to quantify a monetary value in six by applying both present day and future scenarios for operating the electric grid. This study confirmed that hydropower resources across the United States contribute significantly to operation of the grid in terms

  14. DOE Grid Tech Team Issues Request for Public Comments on Workshop Summaries

    Broader source: Energy.gov [DOE]

    DOE's Grid Tech Team issued a notice of availability and request for comments on the Electrical Grid Integration Technical Workshop summaries. Public comments on summaries from the distribution system and transmission system workshops will be accepted until March 25, 2013.

  15. Blackout 2003: The August 14, 2003 Blackout One Year Later: Actions...

    Energy Savers [EERE]

    Blackout 2003: The August 14, 2003 Blackout One Year Later: Actions Taken in the United States and Canada To Reduce Blackout Risk A report to the US-Canada Power System Outage Task ...

  16. Microsoft Word - SmartGrid - NRC Input to DOE Requestrvjcomments...

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

    for restoration of offsite power following a loss-of-grid ... generation such as wind and solar will have to be ... grid stability and operating parameters in accordance ...

  17. Sandia to participate in upcoming DOE Grid Modernization Regional...

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

    Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, ... HomeGrid Integration, Microgrid, News, News & Events, SMART Grid, WorkshopsSandia to ...

  18. Blackout 2003: Final Report on the August 14, 2003 Blackout in...

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

    in the United States and Canada: Causes and Recommendations Blackout 2003: Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes and ...

  19. EAC Recommendations for DOE Action Regarding U.S. Electric Grid Resiliency- March 2014

    Office of Energy Efficiency and Renewable Energy (EERE)

    EAC Recommendations for DOE Action Regarding U.S. Electric Grid Resiliency, approved at the March 12-13, 2014 meeting.

  20. Smart Grid Outreach and Communication Strategy: Next Steps - EAC Recommendations for DOE (October 17, 2012)

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

    Smart Grid Outreach and Communication Strategy: The Next Steps Recommendations for the U.S. Department of Energy A Report by The Electricity Advisory Committee October 2012 Table of Contents EAC Smart Grid Outreach White Paper 1 Glossary of Terms and Abbreviations .................................................................................................. 3 2 Executive Summary: EAC Smart Grid Recommendations to DOE ..................................................... 4 3 What are the

  1. DOE SciDAC's Earth System Grid Center for Enabling Technologies Final

    Office of Scientific and Technical Information (OSTI)

    Report for University of Southern California Information Sciences Institute (Technical Report) | SciTech Connect DOE SciDAC's Earth System Grid Center for Enabling Technologies Final Report for University of Southern California Information Sciences Institute Citation Details In-Document Search Title: DOE SciDAC's Earth System Grid Center for Enabling Technologies Final Report for University of Southern California Information Sciences Institute The mission of the Earth System Grid Federation

  2. Microsoft Word - Honeywell comments_DOE RFI_Smart Grid Policy and Logistical Challenges.doc

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

    DOE RFI on Smart Grid Honeywell Inc. 1 INITIAL COMMENTS OF HONEYWELL, INC. ON POLICY AND LOGISTICAL CHALLENGES IN IMPLEMENTING SMART GRID SOLUTIONS Pursuant to DOE's September 17, 2010 request, Honeywell, Inc. ("Honeywell") respectfully submits these comments on policy and logistical challenges and potential solutions for implementing Smart Grid solutions. Honeywell appreciates the opportunity to comment on regulatory policy issues that need to be considered, and on implementation

  3. Secretary Chu to Participate in White House Grid Modernization...

    Office of Environmental Management (EM)

    the grid; help accommodate the growing number of electric vehicles; help avoid blackouts and restore power quicker when outages occur; and reduce the need for new power plants. ...

  4. DOE Announces New Projects to Modernize America's Electric Grid...

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

    ... New decision support tools for integrated planning and operation of distributed energy technologies, such as solar, demand response, and smart consumer appliances. Advances in grid ...

  5. DOE to Invest in Grid Integration Systems for Solar Energy | Department of

    Office of Environmental Management (EM)

    Energy in Grid Integration Systems for Solar Energy DOE to Invest in Grid Integration Systems for Solar Energy August 13, 2008 - 1:00pm Addthis DOE announced on August 12 that it plans to invest up to $24 million over a number of years to develop products that connect solar power systems with the electrical grid in an interactive way. DOE has selected 12 industry teams that will receive $2.9 million in current fiscal year funding to develop conceptual designs and market analyses for such

  6. DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid

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

    System. June 27, 2007 | Department of Energy Provides up to $51.8 Million to Modernize the U.S. Electric Grid System. June 27, 2007 DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System. June 27, 2007 U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE will provide up to $51.8 million for five cost-shared projects that will help accelerate much-needed modernization of our Nation's electricity grid. This research will advance the

  7. New DOE Reports on Smart Grid Technologies Seek to Promote Innovation,

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

    Privacy and Access | Department of Energy Reports on Smart Grid Technologies Seek to Promote Innovation, Privacy and Access New DOE Reports on Smart Grid Technologies Seek to Promote Innovation, Privacy and Access October 5, 2010 - 12:00am Addthis Washington, D.C. - In order to implement recommendations made in the Federal Communications Commission's National Broadband Plan, the Department of Energy released two reports today on important policy issues raised by Smart Grid technologies that

  8. DOE Releases Maturity Model to Better Protect the Nation's Grid from

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

    Cybersecurity Threats | Department of Energy Maturity Model to Better Protect the Nation's Grid from Cybersecurity Threats DOE Releases Maturity Model to Better Protect the Nation's Grid from Cybersecurity Threats May 31, 2012 - 4:32pm Addthis The Electricity Subsector Cybersecurity Capability Maturity Model, which allows electric utilities and grid operators to assess their cybersecurity capabilities and prioritize their actions and investments to improve cybersecurity, combines elements

  9. The Modern Grid Initiative is a DOE-funded project managed by...

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

    team does have some interesting insights into the future possibilities. The GenX GenY Theory of Grid Modernization Traveling through airports a lot, I see a distinct difference...

  10. The Northeast Blackout of 1965

    SciTech Connect (OSTI)

    Vassell, G.S.

    1990-10-11

    Twenty-five years ago, on November 9, 1965, the electric utility industry - and the nation - experienced the biggest power failure in history. While major power outages did happen before and after this unique event, none of them came even close to the Great Northeast Blackout of 1965 - not in terms of the size of the area or the number of people affected, not in terms of the trauma inflicted on the society at large, and not in terms of its impact on the electric utility industry. With our institution memory - as a society - being as short as it is, many of the lessons that were learned by the industry, by the regulators, and by the nation at large in the wake of the Northeast Blackout have been, by now, mostly forgotten. The 25th anniversary of this event offers a unique opportunity, therefore, to refresh our institutional memory in this regard and, by doing so, bring to bear our past experience to the problems of today. This article has been written with this objective in mind and from the perspective of an individual who experienced firsthand - as an active electric utility industry participant - the Northeast Blackout itself, its aftermath, and the subsequent evolution of the industry to the present day.

  11. DOE Live Video Presentation: Smart Grid Development in the U.S. |

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

    Department of Energy Live Video Presentation: Smart Grid Development in the U.S. DOE Live Video Presentation: Smart Grid Development in the U.S. November 9, 2011 - 9:24am Addthis The U.S. Department of Energy's (DOE) Office of Electricity Delivery and Energy Reliability, Office of Energy Efficiency and Renewable Energy, and Brookhaven National Laboratory are conducting a free, online presentation on smart grid development in the U.S, Thursday, Dec. 1, from 11:00 a.m. to 1:00 p.m. EST. This

  12. August 2003 Blackout | Department of Energy

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

    Implementation » August 2003 Blackout August 2003 Blackout General Information Final Report on Implementation of Task Force Recommendations (Issued Oct. 3, 2006) and the press release information Report on Competition v. Reliability per Rec. 12 of Aug. 2004 Blackout Investigation Final Report Draft Report on Implementation of the U.S.-Canada Power System Outage Task Force Recommendations Notice of June 22 Conference For Public Review of Draft Report on Implementation of the U.S. - Canada Power

  13. Are You Prepared for a Blackout? | Department of Energy

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

    Prepared for a Blackout? Are You Prepared for a Blackout? August 24, 2012 - 2:23pm Addthis Earlier this week, Lynn talked about how you could prepare for a blackout. It's always...

  14. Blackout 2003: Energy Secretary Bodman and Minister of Natural...

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

    Blackout 2003: Energy Secretary Bodman and Minister of Natural Resources for Canada Lunn Release the 2003 Power Outage Final Report, October 3, 2006 Blackout 2003: Energy Secretary ...

  15. Microsoft Word - SmartGrid - NRC Input to DOE Requestrvjcomments.docx

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

    Nuclear Regulatory Commission Input to DOE Request for Information/RFI (Federal Register / Vol. 75, No. 180 / Friday, September 17, 2010/Pages 57006-57011 / Notices) / Smart Grid Implementation Input - NRC Contact: Kenn A. Miller, Office of Nuclear Reactor Regulation, 301-415-3152 Comments relevant to the following two sections of the RFI: "Long Term Issues: Managing a Grid with High Penetration of New Technologies" and "Reliability and Cyber-Security," Page 57010. Nuclear

  16. DOE Announces Awards for up to $11 Million for New Solar Energy Grid

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

    Integration Systems | Department of Energy 1 Million for New Solar Energy Grid Integration Systems DOE Announces Awards for up to $11 Million for New Solar Energy Grid Integration Systems July 29, 2009 - 12:00am Addthis Washington, D.C. - US Department of Energy Secretary Steven Chu announced today the investment of up to $11.8 million - $5 million from the American Recovery and Reinvestment Act - for five projects designed to advance the next stage of development of solar energy grid

  17. DOE Grid Modernization Laboratory Consortium (GMLC) - Awards | Department

    Energy Savers [EERE]

    Department of Energy Grants Funds to Ohio EPA for Portsmouth Site Cleanup Oversight DOE Grants Funds to Ohio EPA for Portsmouth Site Cleanup Oversight July 1, 2016 - 12:00pm Addthis Media Contact: Brad Mitzelfelt, 859-219-4035 brad.mitzelfelt@lex.doe.gov LEXINGTON, Ky. - The U.S. Department of Energy (DOE) announced today it has awarded a grant of approximately $3 million to the Ohio Environmental Protection Agency (Ohio EPA) to support ongoing oversight and monitoring of the environmental

  18. June 13, 2011: Building the 21st Century Grid | Department of...

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

    the grid; help accommodate the growing number of electric vehicles; help avoid blackouts and restore power quicker when outages occur; and reduce the need for new power plants. ...

  19. EAC Recommendations for DOE Action Regarding Development of the Next Generation Grid Operating System (Energy Management System)- October 17, 2012

    Office of Energy Efficiency and Renewable Energy (EERE)

    EAC Recommendations for DOE Action Regarding Development of the Next Generation Grid Operating System, approved at the October 15-16, 2012 EAC Meeting.

  20. Data Management Issues Associated with the August 14, 2003 Blackout Investigation

    SciTech Connect (OSTI)

    Dagle, Jeffery E.

    2004-06-10

    The largest blackout in the history of the North American electric power grid occurred on August 14, 2003. An extensive investigation into what happened (and why) began immediately. The joint U.S.-Canada task force led the effort, including support from the electric utility industry and several federal agencies, e.g. the U.S. Department of Energy. The North American Electric Reliability Council (NERC) supported the task force, including particularly the electricity working group. The overall blackout investigation team drew expertise from a large number of organizations, assembled into teams to address specific attributes of the blackout. This paper describes the data management issues associated with supporting the blackout investigation, beginning with the immediate response in the days and weeks following the blackout, supporting the interim report [1], to the long-term plans for deriving lessons learned for implementing improvements in the overall process of outage disturbance reporting. The sole focus of this paper is the electricity working group activities at NERC; the security and nuclear working groups are outside the scope of this paper.

  1. August 2003 Blackout | Department of Energy

    Energy Savers [EERE]

    Reliability per Rec. 12 of Aug. 2004 Blackout Investigation Final Report Draft Report on Implementation of the U.S.-Canada Power System Outage Task Force Recommendations Notice of ...

  2. Blackout 2003: The August 14, 2003 Blackout One Year Later: Actions Taken in the United States and Canada To Reduce Blackout Risk

    Broader source: Energy.gov [DOE]

    A report to the US-Canada Power System Outage Task Force on steps taken in the United States and Canada to reduce blackout risk one year after the August 14, 2003 blackout.

  3. Utilities respond to nuclear station blackout rule

    SciTech Connect (OSTI)

    Rubin, A.M.; Beasley, B.; Tenera, L.P

    1990-02-01

    The authors discuss how nuclear plants in the United States have taken actions to respond to the NRC Station Blackout Rule, 10CFR50.63. The rule requires that each light water cooled nuclear power plant licensed to operate must be able to withstand for a specified duration and recover from a station blackout. Station blackout is defined as the complete loss of a-c power to the essential and non-essential switch-gear buses in a nuclear power plant. A station blackout results from the loss of all off-site power as well as the on-site emergency a-c power system. There are two basic approaches to meeting the station blackout rule. One is to cope with a station blackout independent of a-c power. Coping, as it is called, means the ability of a plant to achieve and maintain a safe shutdown condition. The second approach is to provide an alternate a-c power source (AAC).

  4. DOE Provides $4.3 Million to Improve Reliability of the U.S. Electric Grid

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

    | Department of Energy Provides $4.3 Million to Improve Reliability of the U.S. Electric Grid DOE Provides $4.3 Million to Improve Reliability of the U.S. Electric Grid August 21, 2009 - 3:47pm Addthis Innovative Synchrophasor Research Will Provide Better Real-Time Information WASHINGTON, DC - The Department of Energy's Office of Electricity and Energy Reliability today announced that it will provide $4.3 million for four projects that will use innovative synchrophasor research to improve

  5. Grid Integration

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

    Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its grid integration subprogram.

  6. Sandia National Laboratories Experts Co-Author DOE Reports on Grid

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

    Integration and Concentrating Solar Power Experts Co-Author DOE Reports on Grid Integration and Concentrating Solar Power - 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 &

  7. Station blackout transients in the semiscale facility

    SciTech Connect (OSTI)

    Chapman, J.C.

    1985-12-01

    The test results of station blackout transients conducted in the Semiscale MOD-2B facility are discussed in this report. The Semiscale MOD-2B facility simulates a pressurized water reactor (PWR) power plant. The experiments were initiated from conditions typical of PWR plant operating conditions (primary pressure of 15.2 MPa (2205 psi) and cold leg fluid temperature of 550 K (530F)). Five station blackout experiments were conducted, Three tests in the Power Loss (PL) Test Series and the two Primary Boil-off (PBO) Tests. The responses of these tests were analyzed and compared. However, only one test response (S-PL-2) is presented and discussed in detail. The S-PL-2 experiment is characterized by examining the responses of the primary and secondary pressures and fluid temperatures, the pressurizer liquid level, the primary fluid distribution, and the core thermal behavior. The mechanisms driving the S-PL-2 responses, the main elements of the station blackout transient, the influences of initial and boundary conditions and other transient that may appear similar to a station blackout are also discussed. Information pertinent to station blackout nuclear safety issues is presented in the report. 13 refs., 44 figs.

  8. Blackout 2003: Electric System Working Group Technical Conference -

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

    Comments and Recommendations | Department of Energy Electric System Working Group Technical Conference - Comments and Recommendations Blackout 2003: Electric System Working Group Technical Conference - Comments and Recommendations December 16, 2003 Electric System Working Group Technical Conference, Philadelphia PA - Summary of comments and recommendations relating to the aftermath of the August 2003 blackout. Recommendations (120.51 KB) More Documents & Publications Blackout 2003:

  9. Exploring Complex Systems Aspects of Blackout Risk and Mitigation

    SciTech Connect (OSTI)

    Newman, David E; Carreras, Benjamin A; Lynch, Vickie E; Dobson, Ian

    2011-01-01

    Electric power transmission systems are a key infrastructure, and blackouts of these systems have major consequences for the economy and national security. Analyses of blackout data suggest that blackout size distributions have a power law form over much of their range. This result is an indication that blackouts behave as a complex dynamical system. We use a simulation of an upgrading power transmission system to investigate how these complex system dynamics impact the assessment and mitigation of blackout risk. The mitigation of failures in complex systems needs to be approached with care. The mitigation efforts can move the system to a new dynamic equilibrium while remaining near criticality and preserving the power law region. Thus, while the absolute frequency of blackouts of all sizes may be reduced, the underlying forces can still cause the relative frequency of large blackouts to small blackouts to remain the same. Moreover, in some cases, efforts to mitigate small blackouts can even increase the frequency of large blackouts. This result occurs because the large and small blackouts are not mutually independent, but are strongly coupled by the complex dynamics.

  10. DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System

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

    | Department of Energy Provides up to $51.8 Million to Modernize the U.S. Electric Grid System DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System June 27, 2007 - 11:05am Addthis Superconductor Research Crucial to Improving Power Delivery Equipment WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE will provide up to $51.8 million for five cost-shared projects that will help accelerate much-needed modernization of our

  11. DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System

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

    | Department of Energy up to $51.8 Million to Modernize the U.S. Electric Grid System DOE Provides up to $51.8 Million to Modernize the U.S. Electric Grid System June 27, 2007 - 2:08pm Addthis Superconductor Research Crucial to Improving Power Delivery Equipment WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced that DOE will provide up to $51.8 million for five cost-shared projects that will help accelerate much-needed modernization of our Nation's

  12. DOE SciDAC's Earth System Grid Center for Enabling Technologies...

    Office of Scientific and Technical Information (OSTI)

    of Southern California 96 KNOWLEDGE MANAGEMENT AND PRESERVATION Earth System Grid, data replication, system monitoring Earth System Grid, data replication, system monitoring...

  13. Comments of DRSG to DOE Smart Grid RFI: Addressing Policy and...

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

    Department of Energy RFI Association of Home Appliance Manufacturers Comments on Smart Grid RFI ASHRAE draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges

  14. UNITED STATES DEPARTMENT OF ENERGY (US DOE) DATA PRIVACY AND THE SMART GRID: A VOLUNTARY CODE OF CONDUCT (VCC)

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

    DEPARTMENT OF ENERGY (US DOE) DATA PRIVACY AND THE SMART GRID: A VOLUNTARY CODE OF CONDUCT (VCC) Draft: 8/12/2014 MISSION STATEMENT The purpose of the Privacy Voluntary Code of Conduct, facilitated by the United States Department of Energy's Office of Electricity Delivery and Energy Reliability and the Federal Smart Grid Task Force, is to describe principles for voluntary adoption that: (1) encourage innovation while appropriately protecting the privacy and confidentiality of Customer Data and

  15. Blackout 2003: Transcript of Technical Conference with the Electric...

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

    Transcript of the technical conference sponsored by the U.S. Canada task force investigating the August 14, 2003 blackout across Canada and the Northeastern United States. The ...

  16. Blackout 2003: Electric System Working Group Technical Conference...

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

    Blackout 2003: Electric System Working Group Technical Conference - Comments and Recommendations December 16, 2003 Electric System Working Group Technical Conference, Philadelphia ...

  17. Grid Interaction Tech Team, and International Smart Grid Collaboration...

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

    Team, and International Smart Grid Collaboration Grid Interaction Tech Team, and International Smart Grid Collaboration 2012 DOE Hydrogen and Fuel Cells Program and Vehicle ...

  18. EAC Recommendations for DOE Action on the Development of the Next Generation Grid Operating System - October 17, 2012

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

    Patricia Hoffman, Assistant Secretary for Electricity Delivery and Energy Reliability, U.S. Department of Energy FROM: Electricity Advisory Committee (EAC) Richard Cowart, Chair DATE: October 17, 2012 RE: Recommendations on Development of the Next Generation Grid Operating System (Energy Management System). _________________________________________________________________________ The purpose of this memorandum is to respectfully recommend to the U.S. Department of Energy (DOE) a roadmap for the

  19. DOE Selects Projects for up to $50 Million of Federal Funding to Modernize the Nation's Electricity Grid

    Broader source: Energy.gov [DOE]

    Department of Energy (DOE) Assistant Secretary for Electricity Delivery and Energy Reliability Kevin Kolevar today announced the Department's plans to invest up to $50 million over five years (Fiscal Years 2008 - 2012), subject to appropriations from Congress, in nine demonstration projects competitively selected to increase efficiency in the nation's electricity grid.

  20. DOE Publishes Notice of Public Meeting for Smart Grid-connected Buildings

    Broader source: Energy.gov [DOE]

    The physical characterization of smart and grid-connected commercial and residential buildings end-use equipment and appliances, including but not limited to processes and metrics for measurement, identification of grid and building services, and identification of values and benefits of grid connectivity.

  1. The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation

    SciTech Connect (OSTI)

    Vereb, F.; Winters, J.; Schulz, T.; Cummins, E.; Oriani, L. [Westinghouse Electric Company LLC, 1000 Westinghouse Drive, Cranberry Township, PA 16066 (United States)

    2012-07-01

    Station Blackout (SBO) is defined as 'a condition wherein a nuclear power plant sustains a loss of all offsite electric power system concurrent with turbine trip and unavailability of all onsite emergency alternating current (AC) power system. Station blackout does not include the loss of available AC power to buses fed by station batteries through inverters or by alternate AC sources as defined in this section, nor does it assume a concurrent single failure or design basis accident...' in accordance with Reference 1. In this paper, the innovative features of the AP1000 plant design are described with their operation in the scenario of an extended station blackout event. General operation of the passive safety systems are described as well as the unique features which allow the AP1000 plant to cope for at least 7 days during station blackout. Points of emphasis will include: - Passive safety system operation during SBO - 'Fail-safe' nature of key passive safety system valves; automatically places the valve in a conservatively safe alignment even in case of multiple failures in all power supply systems, including normal AC and battery backup - Passive Spent Fuel Pool cooling and makeup water supply during SBO - Robustness of AP1000 plant due to the location of key systems, structures and components required for Safe Shutdown - Diverse means of supplying makeup water to the Passive Containment Cooling System (PCS) and the Spent Fuel Pool (SFP) through use of an engineered, safety-related piping interface and portable equipment, as well as with permanently installed onsite ancillary equipment. (authors)

  2. Distribution Grid Integration

    Broader source: Energy.gov [DOE]

    The DOE Systems Integration team funds distribution grid integration research and development (R&D) activities to address the technical issues that surround distribution grid planning,...

  3. PMEL contributions to the collaboration: SCALING THE EARTH SYSTEM GRID TO PETASCALE DATA for the DOE SciDACs Earth System Grid Center for Enabling Technologies

    SciTech Connect (OSTI)

    Hankin, Steve

    2012-06-01

    Drawing to a close after five years of funding from DOE's ASCR and BER program offices, the SciDAC-2 project called the Earth System Grid (ESG) Center for Enabling Technologies has successfully established a new capability for serving data from distributed centers. The system enables users to access, analyze, and visualize data using a globally federated collection of networks, computers and software. The ESG software now known as the Earth System Grid Federation (ESGF) has attracted a broad developer base and has been widely adopted so that it is now being utilized in serving the most comprehensive multi-model climate data sets in the world. The system is used to support international climate model intercomparison activities as well as high profile U.S. DOE, NOAA, NASA, and NSF projects. It currently provides more than 25,000 users access to more than half a petabyte of climate data (from models and from observations) and has enabled over a 1,000 scientific publications.

  4. Microsoft Word - Honeywell comments_DOE RFI_Smart Grid Policy...

    Energy Savers [EERE]

    ... residential consumers get electricity bill once a month. However the smart interval meters being deployed as part of smart grid are capable of recording energy consumption data ...

  5. New DOE Reports on Smart Grid Technologies Seek to Promote Innovation...

    Office of Environmental Management (EM)

    is considerable consensus that flexibility and consumer education will be critical to the successful adoption and deployment of Smart Grid technologies like advanced metering. ...

  6. DOE SciDAC's Earth System Grid Center for Enabling Technologies...

    Office of Scientific and Technical Information (OSTI)

    Jet Propulsion Laboratory, and the National Oceanic and Atmospheric Administration. ... System Grid, data replication, system monitoring Word Cloud More Like This Full Text ...

  7. 10 Years after the 2003 Northeast Blackout

    Broader source: Energy.gov [DOE]

    Ten years ago today, large portions of the Midwest and Northeast United States and into Canada went dark. The cascading event, which started shortly after 4:00 PM on August 14, 2003, ended up affecting an estimated 50 million people. For some customers, power was not restored for nearly four days. The Department of Energy and Natural Resources Canada jointly commissioned a task force that examined the underlying causes of the blackout and recommended forty-six actions to enhance the reliability of the North American power system. A number of the recommendations were incorporated into law passed by Congress and enacted in the Energy Policy Act of 2005 and the Energy Infrastructure Security Act of 2007.

  8. Determination of station blackout frequency-duration relationships

    SciTech Connect (OSTI)

    Griggs, D.P.; Riggs, B.K.; Balakrishna, S.

    1986-01-01

    Station blackout is the loss of all alternating current (ac) power to the essential and nonessential electrical buses in a nuclear power plant. This generally involves the loss of redundant off-site power sources and the failure of two or more emergency diesel generators (EDGs). The US Nuclear Regulatory Commission (NRC) has proposed requiring all commercial reactors to have the capability of coping with a station blackout of a specified duration. The NRC has also proposed 4 or 8 h as acceptable durations, depending on plant susceptibility to the occurrence of station blackout events. Analyses were performed to determine expected station blackout frequencies representative of a majority of domestic nuclear power plants. A methodology based on that developed by the NRC was used. Representative industry data for loss of off-site power (LOOP) events and EDG reliability were used in the analyses.

  9. Instrumentation, Controls, and Human-Machine Interface Technology Development Roadmap in Support of Grid Appropriate Reactors

    SciTech Connect (OSTI)

    Holcomb, David Eugene [ORNL] [ORNL; Upadhyaya, Belle R. [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Kisner, Roger A [ORNL] [ORNL; O'Hara, John [Brookhaven National Laboratory (BNL)] [Brookhaven National Laboratory (BNL); Quinn, Edward L. [Longenecker & Associates] [Longenecker & Associates; Miller, Don W. [Ohio State University] [Ohio State University

    2009-01-01

    Grid Appropriate Reactors (GARs) are a component of the U.S. Department of Energy s (DOE s) Global Nuclear Energy Partnership (GNEP) program. GARs have smaller output power (<~600 MWe), than those intended for deployment on large, tightly coupled grids. This smaller size is important in avoiding grid destabilization, which can result from having a large fraction of a grid s electrical generation supplied by a single source. GARs are envisioned to be deployed worldwide often in locations without extensive nuclear power experience. DOE recently sponsored the creation of an Instrumentation, Controls, and Human-Machine Interface (ICHMI) technology development roadmap emphasizing the specific characteristics of GARs [1]. This roadmapping effort builds upon and focuses the recently developed, more general nuclear energy ICHMI technology development roadmap [2]. The combination of the smaller plant size, smaller grids, and deployment in locations without extensive prior nuclear power experience presents particular infrastructure, regulation, design, operational, and safeguards challenges for effective GAR deployment. ICHMI technologies are central to efficient GAR operation and as such are a dimension of each of these challenges. Further, while the particular ICHMI technologies to be developed would be useful at larger power plants, they are not high-priority development items at the larger plants. For example, grid transient resilience would be a useful feature for any reactor/grid combination and indeed would have limited some recent blackout events. However, most large reactors have limited passive cooling features. Large plants with active safety response features will likely preserve trip preferential grid transient response. This contrasts sharply with GARs featuring passive shutdown cooling, which can safely support grid stability during large grid transients. ICHMI technologies ranging from alternative control algorithms to simplified human-interface system

  10. D:\\0myfiles\\DOE Policy (LBL) Blackout Final\\final-blackout-body...

    Office of Environmental Management (EM)

    ... and for the operations planning horizon at the CONTROL ... modeled to capture any problems crossing such boundaries." ... What Constitutes an Operating Emergency? An operating ...

  11. Blackout 2003: Transcript of Technical Conference with the Electric System

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

    Investigation Team | Department of Energy Transcript of Technical Conference with the Electric System Investigation Team Blackout 2003: Transcript of Technical Conference with the Electric System Investigation Team Electric System Investigation Team: 8 Reliability Recommendation consultation Transcript of the technical conference sponsored by the U.S. Canada task force investigating the August 14, 2003 blackout across Canada and the Northeastern United States. The transcript includes reports

  12. Loss of pressurizer water level during station blackout

    SciTech Connect (OSTI)

    Griggs, D.P.; Riggs, B.K.

    1986-01-01

    Station blackout is the loss of all alternating current (ac) power to both the essential and nonessential electrical buses in a nuclear power plant. The US Nuclear Regulatory Commission (NRC) has proposed a requirement that all plants be capable of maintaining adequate core cooling during station blackout events lasting a specified duration. The NRC has also suggested acceptable specified durations of four or eight hours, depending on individual plant susceptibility to blackout events. In a pressurized water reactor (PWR), the occurrence of a station blackout event results in the functional loss of many plant components, including main feedwater, reactor coolant pumps, the emergency core cooling system, and pressurizer heaters and spray. Nevertheless, PWRs have the capability of removing decay heat for some period of time using steam-driven auxiliary feedwater pumps and the natural-circulation capability of the primary system. The purpose of this investigation is to determine the early response of a PWR to station blackout conditions. In particular, the effect of primary coolant shrinkage and inventory loss on pressurizer level is examined to gain insight into the operational and analytical issues associated with the proposed station blackout coping requirement.

  13. DOE Announces Funding Opportunity to Develop the Smart Grid Information Clearinghouse

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energys Office of Electricity Delivery and Energy Reliability (OE) issued a Funding Opportunity Announcement (FOA) for developing, populating, managing, and maintaining a Web-based Smart Grid Information Clearinghouse.

  14. DOE Hosts Public Roundtable Discussion of Smart-Grid Data Access and Privacy Issues

    Broader source: Energy.gov [DOE]

    On June 29, 2010, the Department of Energy will host a public roundtable panel discussion to collect additional information about the data access and privacy implications of smart-grid technologies...

  15. Blackout 2003: Final Report on the August 14, 2003 Blackout in the United States and Canada: Causes and Recommendations

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Task Force has completed a thorough investigation of the causes of the August 14, 2003 blackout and has recommended actions to minimize the likelihood and scope of similar events in the future.

  16. Blackout 2003: U.S.- Canada Task Force Presents Final Report onBlackout of August 2003

    Broader source: Energy.gov [DOE]

    August 14, 2003, saw the worst blackout in North American history. Today, Spencer Abraham, U.S. Secretary of Energy, and the Honorable R. John Efford, Minister of Natural Resources Canada, released...

  17. Microsoft Word - DOE Smart Grid RFI_APGA Comments 110110.doc

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

    Office of Electricity Delivery and Energy Reliability U.S. Department of Energy 1000 Independence Avenue, SW, Room 8H033 Washington, D.C. 20585 RE: Smart Grid RFI: Addressing Policy and Logistical Challenges to Smart Grid Implementation, 75 Fed. Reg. 57,006 (September 17, 2010). Ladies and Gentlemen: The American Public Gas Association (APGA) is pleased to submit for your consideration the following comments in response to the U.S. Department of Energy, Office of Electricity Delivery and Energy

  18. Kick-Off Meeting Smart Grid Ready Inverters DOE Project DE-EE0005337

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

    PV Grid Integration Workshop April 19, 2012 Tucson, AZ 2 © 2012 Electric Power Research Institute, Inc. All rights reserved. Our work program has been to: * Better understand PV output variability * Apply feeder modeling and analysis tools * Consider screening method for connection * Promote a standard communication btw inverter and distribution * Investigate distribution "Hosting Capacity" for variable generation * Provide a forecast to grid operators 3 © 2012 Electric Power

  19. Study of a Station Blackout Event in the PWR Plant

    SciTech Connect (OSTI)

    Ching-Hui Wu; Tsu-Jen Lin; Tsu-Mu Kao [Institute of Nuclear Energy Research P.O. Box 3-3, Longtan, 32500, Taiwan (China)

    2002-07-01

    On March 18, 2001, a PWR nuclear power plant located in the Southern Taiwan occurred a Station Blackout (SBO) event. Monsoon seawater mist caused the instability of offsite power grids. High salt-contained mist caused offsite power supply to the nuclear power plant very unstable, and forced the plant to be shutdown. Around 24 hours later, when both units in the plant were shutdown, several inadequate high cycles of bus transfer between 345 kV and 161 kV startup transformers degraded the emergency 4.16 kV switchgears. Then, in the Train-A switchgear room of Unit 1 occurred a fire explosion, when the degraded switchgear was hot shorted at the in-coming 345 kV breaker. Inadequate configuration arrangement of the offsite power supply to the emergency 4.16 kV switchgears led to loss of offsite power (LOOP) events to both units in the plant. Both emergency diesel generators (EDG) of Unit 1 could not be in service in time, but those of Unit 2 were running well. The SBO event of Unit 1 lasted for about two hours till the fifth EDG (DG-5) was lined-up to the Train-B switchgear. This study investigated the scenario of the SBO event and evaluated a risk profile for the SBO period. Guidelines in the SBO event, suggested by probabilistic risk assessment (PRA) procedures were also reviewed. Many related topics such as the re-configuration of offsite power supply, the addition of isolation breakers of the emergency 4.16 kV switchgears, the betterment of DG-5 lineup design, and enhancement of the reliability of offsite power supply to the PWR plant, etc., will be in further studies. (authors)

  20. DOE SciDAC's Earth System Grid Center for Enabling Technologies Final Report

    SciTech Connect (OSTI)

    Williams, Dean N.

    2011-09-27

    The mission of the Earth System Grid Federation (ESGF) is to provide the worldwide climate-research community with access to the data, information, model codes, analysis tools, and intercomparison capabilities required to make sense of enormous climate data sets. Its specific goals are to (1) provide an easy-to-use and secure web-based data access environment for data sets; (2) add value to individual data sets by presenting them in the context of other data sets and tools for comparative analysis; (3) address the specific requirements of participating organizations with respect to bandwidth, access restrictions, and replication; (4) ensure that the data are readily accessible through the analysis and visualization tools used by the climate research community; and (5) transfer infrastructure advances to other domain areas. For the ESGF, the U.S. Department of Energy's (DOE's) Earth System Grid Center for Enabling Technologies (ESG-CET) team has led international development and delivered a production environment for managing and accessing ultra-scale climate data. This production environment includes multiple national and international climate projects (such as the Community Earth System Model and the Coupled Model Intercomparison Project), ocean model data (such as the Parallel Ocean Program), observation data (Atmospheric Radiation Measurement Best Estimate, Carbon Dioxide Information and Analysis Center, Atmospheric Infrared Sounder, etc.), and analysis and visualization tools, all serving a diverse user community. These data holdings and services are distributed across multiple ESG-CET sites (such as ANL, LANL, LBNL/NERSC, LLNL/PCMDI, NCAR, and ORNL) and at unfunded partner sites, such as the Australian National University National Computational Infrastructure, the British Atmospheric Data Centre, the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory, the Max Planck Institute for Meteorology, the German Climate Computing

  1. How to Prepare Your Home for a Blackout | Department of Energy

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

    Your Home for a Blackout How to Prepare Your Home for a Blackout August 20, 2012 - 7:19pm Addthis Lynn Meyer Presidential Management Fellow, Office of Energy Efficiency and...

  2. Graphical Contingency Analysis for the Nation's Electric Grid

    ScienceCinema (OSTI)

    Zhenyu (Henry) Huang

    2012-12-31

    PNNL has developed a new tool to manage the electric grid more effectively, helping prevent blackouts and brownouts--and possibly avoiding millions of dollars in fines for system violations. The Graphical Contingency Analysis tool monitors grid performance, shows prioritized lists of problems, provides visualizations of potential consequences, and helps operators identify the most effective courses of action. This technology yields faster, better decisions and a more stable and reliable power grid.

  3. Graphical Contingency Analysis for the Nation's Electric Grid

    SciTech Connect (OSTI)

    Zhenyu Huang

    2011-04-01

    PNNL has developed a new tool to manage the electric grid more effectively, helping prevent blackouts and brownouts--and possibly avoiding millions of dollars in fines for system violations. The Graphical Contingency Analysis tool monitors grid performance, shows prioritized lists of problems, provides visualizations of potential consequences, and helps operators identify the most effective courses of action. This technology yields faster, better decisions and a more stable and reliable power grid.

  4. Grid Storage and the Energy Frontier Research Centers | Department...

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

    Grid Storage and the Energy Frontier Research Centers Grid Storage and the Energy Frontier Research Centers DOE: Grid Storage and the Energy Frontier Research Centers Grid Storage...

  5. DOE National Power Grid recommendations: unreliable guides for the future organization of the bulk electric-power industry

    SciTech Connect (OSTI)

    Miller, J.T. Jr.

    1980-01-01

    The bulk electric power supply industry needs leadership to meet its problems effectively, economically, and with the least injury to the environment during the rest of the century. The industry's pluralistic character, which is one of its strengths, and the range of the federal antitrust laws have blunted industry response to the challenge of supplying adequate bulk power. DOE failed to recognize the leadership vacuum and to use the opportunity provided by its Final Report on the National Power Grid Study to adopt a more effective role. DOE can still recover and urge Congress to pass the necessary enabling legislation to establish a regional bulk power supply corporation that would generate and transmit electric power for sale to federally chartered, privately owned electric utilities having no corporate links to their wholesale customers. 87 references.

  6. P016-10__DOE_RFI_-_Smart_Grid_Challenges__final1

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

    0 Satcon Technology Corporation - Proprietary & Confidential Satcon Technology Corporation Request for Information Response for: Addressing Policy and Logistical Challenges to Smart Grid Implementation for US Department of Energy November 1, 2010 Disclosure: Contents found herein are considered proprietary and the distribution of this proposal is restricted to only the corporation stated above. Other requests for copies of this document must be referred to Satcon Headquarters, 27 Drydock

  7. Smart Grid e-Forum

    Broader source: Energy.gov [DOE]

    DOE conducted a series of Smart Grid E-Forums to discuss various issues surrounding Smart Grid including costs, benefits, value proposition to consumers, implementation, and deployment.

  8. Initial Evidence for Self-Organized Criticality in Electric Power System Blackouts

    SciTech Connect (OSTI)

    Carreras, B.A.; Dobson, I.; Newman, D.E.; Poole, A.B.

    2000-01-04

    We examine correlations in a time series of electric power system blackout sizes using scaled window variance analysis and R/S statistics. The data shows some evidence of long time correlations and has Hurst exponent near 0.7. Large blackouts tend to correlate with further large blackouts after a long time interval. Similar effects are also observed in many other complex systems exhibiting self-organized criticality. We discuss this initial evidence and possible explanations for self-organized criticality in power systems blackouts. Self-organized criticality, if fully confirmed in power systems, would suggest new approaches to understanding and possibly controlling blackouts.

  9. The Modern Grid Initiative is a DOE-funded project managed by the National Energy Technology Laboratory

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

    Rainsuit Theory of grid modernization. This is third in a series of discussions on how different mindsets look at grid modernization. One of my past bosses used to share humorous theories of organizational change management from a college professor, McAdams, worthy of the great philosopher, Yogi Berra. The McAdams Theory of Grid Modernization While this column normally focuses on grid issues, generation counts. The grid is after all an energy system which includes generation, delivery, and load.

  10. Parametric Grid Information in the DOE Knowledge Base: Data Preparation, Storage, and Access

    SciTech Connect (OSTI)

    HIPP,JAMES R.; MOORE,SUSAN G.; MYERS,STEPHEN C.; SCHULTZ,CRAIG A.; SHEPHERD,ELLEN; YOUNG,CHRISTOPHER J.

    1999-10-01

    The parametric grid capability of the Knowledge Base provides an efficient, robust way to store and access interpolatable information which is needed to monitor the Comprehensive Nuclear Test Ban Treaty. To meet both the accuracy and performance requirements of operational monitoring systems, we use a new approach which combines the error estimation of kriging with the speed and robustness of Natural Neighbor Interpolation (NNI). The method involves three basic steps: data preparation (DP), data storage (DS), and data access (DA). The goal of data preparation is to process a set of raw data points to produce a sufficient basis for accurate NNI of value and error estimates in the Data Access step. This basis includes a set of nodes and their connectedness, collectively known as a tessellation, and the corresponding values and errors that map to each node, which we call surfaces. In many cases, the raw data point distribution is not sufficiently dense to guarantee accurate error estimates from the NNI, so the original data set must be densified using a newly developed interpolation technique known as Modified Bayesian Kriging. Once appropriate kriging parameters have been determined by variogram analysis, the optimum basis for NNI is determined in a process they call mesh refinement, which involves iterative kriging, new node insertion, and Delauny triangle smoothing. The process terminates when an NNI basis has been calculated which will fir the kriged values within a specified tolerance. In the data storage step, the tessellations and surfaces are stored in the Knowledge Base, currently in a binary flatfile format but perhaps in the future in a spatially-indexed database. Finally, in the data access step, a client application makes a request for an interpolated value, which triggers a data fetch from the Knowledge Base through the libKBI interface, a walking triangle search for the containing triangle, and finally the NNI interpolation.

  11. DOE Announces Awards for up to $11 Million for New Solar Energy Grid

    Office of Environmental Management (EM)

    Department of Energy 1st Projects to Meet President's Clean Coal Commitment DOE Announces 1st Projects to Meet President's Clean Coal Commitment January 15, 2003 - 8:58am Addthis Washington, DC - Secretary of Energy Spencer Abraham today announced the first eight projects chosen by the Department of Energy in the initial phase of President Bush's Clean Coal Power Initiative. The projects, valued at more than $1.3 billion, are expected to help pioneer a new generation of innovative power

  12. Estimating Failure Propagation in Models of Cascading Blackouts

    SciTech Connect (OSTI)

    Dobson, Ian [University of Wisconsin, Madison; Carreras, Benjamin A [ORNL; Lynch, Vickie E [ORNL; Nkei, Bertrand [ORNL; Newman, David E [University of Alaska

    2005-09-01

    We compare and test statistical estimates of failure propagation in data from versions of a probabilistic model of loading-dependent cascading failure and a power systems blackout model of cascading transmission line overloads. The comparisons suggest mechanisms affecting failure propagation and are an initial step towards monitoring failure propagation from practical system data. Approximations to the probabilistic model describe the forms of probability distributions of cascade sizes.

  13. Opening Remarks, Grid Integration Initiative Overview

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

    Lynn Grid Integration Initiative Hydrogen Energy Storage for Grid Integration and Transportation Services May 14, 2014 2 Other DOE? 2 The GTT is a DOE inter-office work group established in April 2011 by the Undersecretary of Energy to: - Coordinate and leverage DOE grid resources and activities - Identify pathways to enable grid modernization - Develop a long-term strategic vision of the U.S. electricity grid Value to the DOE * Holistic systems perspective * Align internal grid activities *

  14. The Smart Grid Experience: Applying Results, Reaching Beyond...

    Office of Environmental Management (EM)

    gained in both the EPRI Smart Grid Demonstration Initiative and DOE's Smart Grid Investment Grant Program (SGIG) and Smart Grid Demonstration Program (SGDP), with a focus on smart ...

  15. Electricity Advisory Committee Smart Grid Subcommittee

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

    Electricity Advisory Committee Smart Grid Subcommittee Update to the 2008 EAC Report Smart Grid: Enabler of the New Energy Economy Report Recommendations May 10, 2011 Recommendations from the 2008 EAC Smart Grid Report (http://www.oe.energy.gov/DocumentsandMedia/final-smart-grid-report.pdf) 1. Create a Smart Grid Program office within DOE. Update: Completed. DOE's Office of Electricity Delivery and Energy Reliability (OE) has an active Smart Grid Program, which includes the Smart Grid Investment

  16. Reproducing continuous radio blackout using glow discharge plasma

    SciTech Connect (OSTI)

    Xie, Kai; Li, Xiaoping; Liu, Donglin; Shao, Mingxu [School of Aerospace Science and Technology, Xidian University, Xi'an 710071 (China)] [School of Aerospace Science and Technology, Xidian University, Xi'an 710071 (China); Zhang, Hanlu [School of Communication and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710121 (China)] [School of Communication and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710121 (China)

    2013-10-15

    A novel plasma generator is described that offers large-scale, continuous, non-magnetized plasma with a 30-cm-diameter hollow structure, which provides a path for an electromagnetic wave. The plasma is excited by a low-pressure glow discharge, with varying electron densities ranging from 10{sup 9} to 2.5 10{sup 11} cm{sup ?3}. An electromagnetic wave propagation experiment reproduced a continuous radio blackout in UHF-, L-, and S-bands. The results are consistent with theoretical expectations. The proposed method is suitable in simulating a plasma sheath, and in researching communications, navigation, electromagnetic mitigations, and antenna compensation in plasma sheaths.

  17. Smart Grid Computational Tool | Open Energy Information

    Open Energy Info (EERE)

    project benefits. The Smart Grid Computational Tool employs the benefit analysis methodology that DOE uses to evaluate the Recovery Act smart grid projects. How it works: The...

  18. Microsoft Word - DM_VA-#126832-v3-Smart_Grid_Comments_--_DOE_--_Policy_and_Logistical_Challenges.DOC

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

    Before the UNITED STATES DEPARTMENT OF ENERGY Office of Electricity Delivery and Energy Reliability In the matter of: Smart Grid RFI: Addressing Policy and Logistical Challenges to Smart Grid Implementation 75 FR 57006 COMMENTS OF VERIZON AND VERIZON WIRELESS Michael Glover Of Counsel Edward Shakin William H. Johnson VERIZON 1320 North Courthouse Road Ninth Floor Arlington, Virginia 22201 (703) 351-3060 John T. Scott, III William D. Wallace VERIZON WIRELESS 1300 I Street N.W. Suite 400 West

  19. index | netl.doe.gov

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

    includes numerical simulators, analytical models, databases, and documentation. Smart Grid The DOE Smart Grid Implementation Strategy team (previously the Modern Grid...

  20. Thermohydraulic and Safety Analysis for CARR Under Station Blackout Accident

    SciTech Connect (OSTI)

    Wenxi Tian; Suizheng Qiu; Guanghui Su; Dounan Jia [Xi'an Jiaotong University, 28 Xianning Road, Xi'an 710049 (China); Xingmin Liu - China Institute of Atomic Energy

    2006-07-01

    A thermohydraulic and safety analysis code (TSACC) has been developed using Fortran 90 language to evaluate the transient thermohydraulic behaviors and safety characteristics of the China Advanced Research Reactor(CARR) under Station Blackout Accident(SBA). For the development of TSACC, a series of corresponding mathematical and physical models were considered. Point reactor neutron kinetics model was adopted for solving reactor power. All possible flow and heat transfer conditions under station blackout accident were considered and the optional models were supplied. The usual Finite Difference Method (FDM) was abandoned and a new model was adopted to evaluate the temperature field of core plate type fuel element. A new simple and convenient equation was proposed for the resolution of the transient behaviors of the main pump instead of the complicated four-quadrant model. Gear method and Adams method were adopted alternately for a better solution to the stiff differential equations describing the dynamic behaviors of the CARR. The computational result of TSACC showed the enough safety margin of CARR under SBA. For the purpose of Verification and Validation (V and V), the simulated results of TSACC were compared with those of Relap5/Mdo3. The V and V result indicated a good agreement between the results by the two codes. Because of the adoption of modular programming techniques, this analysis code is expected to be applied to other reactors by easily modifying the corresponding function modules. (authors)

  1. Electricity storage for grid-connected household dwellings with PV panels

    SciTech Connect (OSTI)

    Mulder, Grietus; Six, Daan; Ridder, Fjo De

    2010-07-15

    Classically electricity storage for PV panels is mostly designed for stand-alone applications. In contrast, we focus in this article on houses connected to the grid with a small-scale storage to store a part of the solar power for postponed consumption within the day or the next days. In this way the house owner becomes less dependent on the grid and does only pay for the net shortage of his energy production. Local storage solutions pave the way for many new applications like omitting over-voltage of the line and bridging periods of power-line black-out. Since 2009 using self-consumption of PV energy is publicly encouraged in Germany, which can be realised by electric storage. This paper develops methods to determine the optimal storage size for grid-connected dwellings with PV panels. From measurements in houses we were able to establish calculation rules for sizing the storage. Two situations for electricity storage are covered: - the storage system is an optimum to cover most of the electricity needs; - it is an optimum for covering the peak power need of a dwelling. After these calculation rules a second step is needed to determine the size of the real battery. The article treats the aspects that should be taken into consideration before buying a specific battery like lead-acid and lithium-ion batteries. (author)

  2. High-Performance Computing for Real-Time Grid Analysis and Operation

    SciTech Connect (OSTI)

    Huang, Zhenyu; Chen, Yousu; Chavarría-Miranda, Daniel

    2013-10-31

    comprehensive and real time. An even bigger challenge is how to incorporate dynamic information into real-time grid operation. Today’s online grid operation is based on a static grid model and can only provide a static snapshot of current system operation status, while dynamic analysis is conducted offline because of low computational efficiency. The offline analysis uses a worst-case scenario to determine transmission limits, resulting in under-utilization of grid assets. This conservative approach does not necessarily lead to reliability. Many times, actual power grid scenarios are not studied, and they will push the grid over the edge and resulting in outages and blackouts. This chapter addresses the HPC needs in power grid analysis and operations. Example applications such as state estimation and contingency analysis are given to demonstrate the value of HPC in power grid applications. Future research directions are suggested for high performance computing applications in power grids to improve the transparency, efficiency, and reliability of power grids.

  3. The Modern Grid Initiative is a DOE-funded project managed by the National Energy Technology Laboratory

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

    McAdams Theory of grid modernization. This is final in a series of discussions on how different mindsets look at grid modernization. With four generation "X" and "Y" children growing up in our house over the last 25 years, we had the opportunity to begin to understand how this next generation of consumers, leaders, designers, and builders view the electric system. Briefly, generation X (GenX) are those who have grown up in the shadow of the Baby Boomers and are roughly 25 to

  4. Potential failure of steam generator tubes following a station blackout

    SciTech Connect (OSTI)

    Ward, L.W.; Palmrose, D.E.

    1994-12-31

    The U.S. Nuclear Regulatory Commission is considering changes to pressurized water reactor (PWR) requirements relating to steam generator tube plugging and repair criteria, including leakage monitoring. The proposed changes are known as the alternate tube plugging criteria (APC) and are intended to permit PWRs to operate with through-wall cracks in steam generator tubes subject to meeting a specified limit on predicted primary to secondary leakage under accident conditions. To assess the consequences of the alternate plugging criteria, analyses were performed for a station blackout sequence in which the reactor core melts while the reactor coolant system (RCS) remains at high pressure. Evaluations were conducted to investigate the potential for tube failure with and without secondary system depressurization. The excessive heat coupled with the high-pressure differentials across the steam generator tubes could result in creep rupture failure of the tubes during a severe accident, which could lead to a radiological release directly to the environment. In order to assess the safety significance of the APC, it is important to identify the level of steam generator tube leakage that can occur without challenging the previous study conclusions that steam generator creep failure will not occur prior to a surge line or hot-leg failure. To assess the effect of leakage on steam generator tube integrity during a core melt sequence with the RCS at high pressure and the secondary side of the steam generators pressurized and depressurized, an analysis was performed for a core melt event resulting from an unmitigated station blackout to identify the total steamenerator and tube leakage flow rates that could induce tube ruptures prior to other RCS boudary faliures that could depressurize the RCS.

  5. Smart Grid Primer (Smart Grid Books) | Department of Energy

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

    sponsored by DOE's Office of Electricity Delivery and Energy Reliability that ... Investments Improve Grid Reliability, Resilience, and Storm Responses (November 2014) ...

  6. Transmission Grid Integration

    Office of Energy Efficiency and Renewable Energy (EERE)

    The levels of solar energy penetration envisioned by the DOE SunShot Initiative must be interconnected effectively onto the transmission grid. This interconnection requires an in-depth...

  7. OSTIblog Articles in the blackout Topic | OSTI, US Dept of Energy...

    Office of Scientific and Technical Information (OSTI)

    Approximately 50 million people in 8 U.S. states and Canada experienced the worst blackout in North American history. Research has been ongoing at the Department of Energy to ...

  8. DOE Announces Public Meetings on the Communications Needs of Utilities and Smart-Grid Data Access and Privacy

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) has long recognized the importance of incorporating broadband and other interactive communications technologies into ongoing efforts to modernize America’s electrical...

  9. DOE Announces $11 Million for Seven New Projects to Test New Options for Optimal Efficiency of the U.S. Electric Grid

    Office of Energy Efficiency and Renewable Energy (EERE)

    ARPA-E’s GRID DATA Projects will Develop Innovative Models and Data Repositories to Improve Transmission and Distribution of Electricity on the U.S. Electric Grid

  10. Grid Architecture

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

    ... happen to be connected to the grid, ... of aspirational requirements in the form of desired system (grid) qualities. ... 2. Scalability 3. Minimum environmental ...

  11. SMART Grid

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

    ... Read More Permalink Sandia to Co-Host International Workshop on Photovoltaics (PV) Penetration DETL, Distribution Grid Integration, Energy, Energy Surety, Grid Integration, ...

  12. Secretary Chu Announces More than $57 Million in Recovery Act Funding to Advance Smart Grid Development

    Broader source: Energy.gov [DOE]

    DOE also announces the release of a new smart grid report and the development of a smart grid clearinghouse

  13. Testing and Validation of Vehicle to Grid Communication Standards...

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

    and Validation of Vehicle to Grid Communication Standards Testing and Validation of Vehicle to Grid Communication Standards 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle ...

  14. Solar Energy Grid Integration Systems-Advanced Concepts | Department...

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

    Systems Integration Solar Energy Grid Integration Systems-Advanced Concepts Solar Energy Grid Integration Systems-Advanced Concepts On September 1, 2011, DOE announced 25.9 ...

  15. Hydrogen Energy Storage for Grid and Transportation Services...

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

    Hydrogen Energy Storage for Grid and Transportation Services Workshop Hydrogen Energy Storage for Grid and Transportation Services Workshop The U.S. Department of Energy (DOE) and...

  16. Fact Sheet: Sustainable Energy for Remote Indonesian Grids (SERIG...

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

    Fact Sheet: Sustainable Energy for Remote Indonesian Grids (SERIG) Fact Sheet: Sustainable Energy for Remote Indonesian Grids (SERIG) The United States Department of Energy (DOE) ...

  17. Establishment of Grid Modernization Laboratory Consortium - Testing

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

    Establishment of Grid Modernization Laboratory Consortium - Testing NetworkEstablishment of Grid Modernization Laboratory Consortium - Testing Network Establishment of Grid Modernization Laboratory Consortium - Testing Network Establishment of Grid Modernization Laboratory Consortium - Testing Network The U.S. Department of Energy launched the GMLC in November 2014. The consortium, a strategic partnership between DOE headquarters and the national laboratories, brings together leading experts and

  18. Smart Grid Technology Interactive Model | Argonne National Laboratory

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

    Smart Grid Primer (Smart Grid Books) Smart Grid Primer (Smart Grid Books) Smart Grid Primer (Smart Grid Books) The Smart Grid: An Introduction, prepared 2008, is a publication sponsored by DOE's Office of Electricity Delivery and Energy Reliability that explores - in layman's terms - the nature, challenges, opportunities and necessity of Smart Grid implementation. Additional books, released in 2009, target the interests of specific stakeholder groups: Consumer Advocates, Utilities, Technology

  19. Enhancement of NRC station blackout requirements for nuclear power plants

    SciTech Connect (OSTI)

    McConnell, M. W.

    2012-07-01

    The U.S. Nuclear Regulatory Commission (NRC) established a Near-Term Task Force (NTTF) in response to Commission direction to conduct a systematic and methodical review of NRC processes and regulations to determine whether the agency should make additional improvements to its regulatory system and to make recommendations to the Commission for its policy direction, in light of the accident at the Fukushima Dai-ichi Nuclear Power Plant. The NTTF's review resulted in a set of recommendations that took a balanced approach to defense-in-depth as applied to low-likelihood, high-consequence events such as prolonged station blackout (SBO) resulting from severe natural phenomena. Part 50, Section 63, of Title 10 of the Code of Federal Regulations (CFR), 'Loss of All Alternating Current Power,' currently requires that each nuclear power plant must be able to cool the reactor core and maintain containment integrity for a specified duration of an SBO. The SBO duration and mitigation strategy for each nuclear power plant is site specific and is based on the robustness of the local transmission system and the transmission system operator's capability to restore offsite power to the nuclear power plant. With regard to SBO, the NTTF recommended that the NRC strengthen SBO mitigation capability at all operating and new reactors for design-basis and beyond-design-basis external events. The NTTF also recommended strengthening emergency preparedness for prolonged SBO and multi-unit events. These recommendations, taken together, are intended to clarify and strengthen US nuclear reactor safety regarding protection against and mitigation of the consequences of natural disasters and emergency preparedness during SBO. The focus of this paper is on the existing SBO requirements and NRC initiatives to strengthen SBO capability at all operating and new reactors to address prolonged SBO stemming from design-basis and beyond-design-basis external events. The NRC initiatives are intended to

  20. Utility perspective on station blackout rule implementation with NUMARC 87-00

    SciTech Connect (OSTI)

    Maracek, J.

    1990-01-01

    The development of the station blackout rule involved an unusually high level of cooperation between the industry and the Nuclear Regulatory Commission (NRC). The industry developed an approach to implementation of the rule in the form of the Nuclear Management and Resources Council's (NUMARC's) Guidelines and Technical Bases for NUMARC Initiatives Addressing Station Blackout at Light Water Reactors (NUMARC 87-00). This document was reviewed and accepted by the NRC staff as a means for meeting the requirements of the station blackout rule. Yet difficulties still arose when individual utilities used the NUMARC 87-00 approach to respond to the rule. This presentation examines the development process and subsequent difficulties and identifies potential improvements for development and implementation of new rules in the future.

  1. Sharing Smart Grid Experiences

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

    Sharing Smart Grid Experiences through Performance Feedback March 31, 2011 DOE/NETL- DE-FE0004001 U.S. Department of Energy Office of Electricity Delivery and Energy Reliability Prepared by: National Energy Technology Laboratory Sharing Smart Grid Experiences through Performance Feedback v1.0 Page ii Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their

  2. Applications of the RELAP5 code to the station blackout transients at the Browns Ferry Unit One Plant

    SciTech Connect (OSTI)

    Schultz, R.R.; Wagoner, S.R.

    1983-01-01

    As a part of the charter of the Severe Accident Sequence Analysis (SASA) Program, station blackout transients have been analyzed using a RELAP5 model of the Browns Ferry Unit 1 Plant. The task was conducted as a partial fulfillment of the needs of the US Nuclear Regulatory Commission in examining the Unresolved Safety Issue A-44: Station Blackout (1) the station blackout transients were examined (a) to define the equipment needed to maintain a well cooled core, (b) to determine when core uncovery would occur given equipment failure, and (c) to characterize the behavior of the vessel thermal-hydraulics during the station blackout transients (in part as the plant operator would see it). These items are discussed in the paper. Conclusions and observations specific to the station blackout are presented.

  3. The response of BWR Mark II containments to station blackout severe accident sequences

    SciTech Connect (OSTI)

    Greene, S.R.; Hodge, S.A.; Hyman, C.R.; Tobias, M.L. (Oak Ridge National Lab., TN (USA))

    1991-05-01

    This report describes the results of a series of calculations conducted to investigate the response of BWR Mark 2 containments to short-term and long-term station blackout severe accident sequences. The BWR-LTAS, BWRSAR, and MELCOR codes were employed to conduct quantitative accident sequence progression and containment response analyses for several station blackout scenarios. The accident mitigation effectiveness of automatic depressurization system actuation, drywell flooding via containment spray operation, and debris quenching in Mark 2 suppression pools is assessed. 27 refs., 16 figs., 21 tabs.

  4. OSTIblog Articles in the blackout Topic | OSTI, US Dept of Energy Office of

    Office of Scientific and Technical Information (OSTI)

    Scientific and Technical Information blackout Topic Keeping the lights on by Kathy Chambers 17 Jul, 2013 in Products and Content 7547 NY_8076404_nightfall.jpg Keeping the lights on Read more about 7547 On August 14, 2003, a software bug at a utility company brought New York City to its knees, and the resulting cascading effect ultimately forced the shutdown of more than 100 power plants (read more). Approximately 50 million people in 8 U.S. states and Canada experienced the worst blackout in

  5. Smart Grid Investment Grant Recipient FAQs

    Broader source: Energy.gov [DOE]

    These Questions and Answers have been provided by DOE to Smart Grid Investment Grant selectees. The information discussed within these documents applies specifically and only to the Smart Grid...

  6. Smart Grid Investment Grant Recipient FAQs

    Broader source: Energy.gov [DOE]

    These Questions and Answers have been provided by DOE to Smart Grid Investment Grant selectees.  The information discussed within these documents applies specifically and only to the Smart Grid...

  7. Methodology to determine the technical performance and value proposition for grid-scale energy storage systems : a study for the DOE energy storage systems program.

    SciTech Connect (OSTI)

    Byrne, Raymond Harry; Loose, Verne William; Donnelly, Matthew K.; Trudnowski, Daniel J.

    2012-12-01

    As the amount of renewable generation increases, the inherent variability of wind and photovoltaic systems must be addressed in order to ensure the continued safe and reliable operation of the nation's electricity grid. Grid-scale energy storage systems are uniquely suited to address the variability of renewable generation and to provide other valuable grid services. The goal of this report is to quantify the technical performance required to provide di erent grid bene ts and to specify the proper techniques for estimating the value of grid-scale energy storage systems.

  8. Grid Modernization Lab Consortium | Department of Energy

    Office of Environmental Management (EM)

    GMI Home » Grid Modernization Lab Consortium Grid Modernization Lab Consortium PNNL researcher Jason Fuller described PNNL power grid research at the new Systems Engineering Building. Courtesy of Pacific Northwest National Laboratory. PNNL researcher Jason Fuller described PNNL power grid research at the new Systems Engineering Building. Courtesy of Pacific Northwest National Laboratory. The Grid Modernization Laboratory Consortium (GMLC) was established as a strategic partnership between DOE

  9. SCDAP severe core-damage studies: BWR ATWS and PWR station blackout

    SciTech Connect (OSTI)

    Laats, E.T.; Chambers, R.; Driskell, W.E.

    1983-01-01

    The Severe Accident Sequence Analysis (SASA) Program, sponsored by the US Nuclear Regulatory Commission (NRC), is addressing a number of accident scenarios that potentially pose a health hazard to the public. Two of the scenarios being analyzed in detail at the Idaho National Engineering Laboratory (INEL) are the station blackout at the Bellefonte nuclear plant and the anticipated transient without scram (ATWS) at the Browns Ferry-1 plant. The INEL analyses of the station blackout and ATWS have been divided into four parts, which represent the sequence being followed in this study. First, the evaluation of long term irradiation effects prior to the station blackout or ATWS was conducted using the FRAPCON-2 fuel rod behavior code; second, the reactor primary and secondary coolant system behavior is being analyzed with the RELAP5 code; third, the degradation of the core is being analyzed with the SCDAP code; and finally, the containment building response is being analyzed with the CONTEMPT code. This paper addresses only the SCDAP/MODO degraded core analyses for both the station blackout and ATWS scenarios.

  10. Recovery sequences for a station blackout accident at the Grand Gulf Nuclear Station

    SciTech Connect (OSTI)

    Carbajo, J.J. [Martin Marietta Energy Systems, Oak Ridge, TN (United States)

    1995-12-31

    Recovery sequences for a low-pressure, short term, station blackout severe accident at the Grand Gulf power plant have been investigated using the computer code MELCOR, version 1.8.3 PN. This paper investigates the effect of reflood timing and mass flow rate on accident recovery.

  11. RELAP5/MOD3 simulation of the station blackout experiment conducted at the IIST facility

    SciTech Connect (OSTI)

    Ferng, Y.M.; Liu, T.J.; Lee, C.H. [Inst. of Nuclear Energy Research, Lung-Tan (Taiwan, Province of China)

    1996-10-01

    Thermal-hydraulic responses in the station blackout experiment conducted at the IIST facility are simulated through the use of the advanced system code RELAP5/MOD3. Typical behaviors occurring in the IIST station blackout transient are characterized by secondary boiloff, primary saturation and pressurization, and subsequent core uncovery and heatup. As the coolant inventory within the steam generator secondary system boils dry, the primary system pressure increases as a result of degradation of the heat removal ability of the steam generator secondary side. This pressurization phenomenon causes the pressurizer safety valve to open and the primary coolant to deplete through the valve, causing the core to eventually become uncovered. The same response can be exactly simulated by the current model. The current calculated results show fairly good agreement with the experimental data, but the timing of the events occurring in the station blackout transient is calculated earlier than the measured value. The overall comparison of key parameters between the calculated results and IIST test data, however, reveals that the current RELAP5/MOD3 model can provide reasonable station blackout modeling for simulating long-term system behavior.

  12. 11 2013 | netl.doe.gov

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

    November 2013 High-Performance Rechargeable Batteries May Help Keep the Lights On Unlike many commodity-based industries, the energy industry must match with reasonable accuracy the electricity they supply with consumer demand. If supply exceeds demand, the excess electricity is undoubtedly wasted. Demand in excess of supply leads to brown-outs or blackouts when producers cannot send enough electricity through the grid. This has happened during regional heat waves, for instance, when millions of

  13. 2016 News | Grid Modernization | NREL

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

    2016 News Below are news stories related to Grid Modernization. RSS Learn about RSS. August 31, 2016 NREL Supercomputing Model Provides Insights from Higher Wind and Solar Generation in the Eastern Power Grid A new study from the United States Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) used high-performance computing capabilities and innovative visualization tools to model, in unprecedented detail, how the power grid of the eastern United States could operationally

  14. Principal Characteristics of a Modern Grid

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

    Smart Grid - What's so Smart About It? An Educational Forum on Smart Grids Joe Miller - Modern Grid Strategy Team June 24, 2008 1 Conducted by the National Energy Technology Laboratory Funded by the U.S. Department of Energy Office of Electricity Delivery and Energy Reliability 2 Office of Electricity Delivery and Energy Reliability MODERN GRID S T R A T E G Y 2 Agenda What is the Smart Grid? EISA 2007 Highlights DOE Activities Questions MODERN GRID S T R A T E G Y What is the Smart Grid? 4

  15. Energy.Gov Presents: Understanding The Grid | Department of Energy

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

    Energy.Gov Presents: Understanding The Grid Energy.Gov Presents: Understanding The Grid Addthis Topic Smart Grid The U.S. Department of Energy is making a series of announcements to support its Grid Modernization Initiative. As we do so, we realize many of you may be wondering: what does "grid modernization" mean? Watch this video to find out

  16. NSTAR Smart Grid Pilot

    SciTech Connect (OSTI)

    Rabari, Anil; Fadipe, Oloruntomi

    2014-03-31

    NSTAR Electric & Gas Corporation (“the Company”, or “NSTAR”) developed and implemented a Smart Grid pilot program beginning in 2010 to demonstrate the viability of leveraging existing automated meter reading (“AMR”) deployments to provide much of the Smart Grid functionality of advanced metering infrastructure (“AMI”), but without the large capital investment that AMI rollouts typically entail. In particular, a central objective of the Smart Energy Pilot was to enable residential dynamic pricing (time-of-use “TOU” and critical peak rates and rebates) and two-way direct load control (“DLC”) by continually capturing AMR meter data transmissions and communicating through customer-sited broadband connections in conjunction with a standardsbased home area network (“HAN”). The pilot was supported by the U.S. Department of Energy’s (“DOE”) through the Smart Grid Demonstration program. NSTAR was very pleased to not only receive the funding support from DOE, but the guidance and support of the DOE throughout the pilot. NSTAR is also pleased to report to the DOE that it was able to execute and deliver a successful pilot on time and on budget. NSTAR looks for future opportunities to work with the DOE and others in future smart grid projects.

  17. Wide-Area Situational Awareness of Power Grids with Limited Phasor Measurements

    SciTech Connect (OSTI)

    Zhou, Ning; Huang, Zhenyu; Nieplocha, Jarek; Nguyen, Tony B.

    2006-09-30

    Lack of situational awareness has been identified as one of root causes for the August 14, 2003 Northeast Blackout in North America. To improve situational awareness, the Department of Energy (DOE) launched several projects to deploy Wide Area Measurement Systems (WAMS) in different interconnections. Compared to the tens of thousands of buses, the number of Phasor Measurement Units (PMUs) is quite limited and not enough to achieve the observability for the whole interconnections. To utilize the limited number of PMU measurements to improve situational awareness, this paper proposes to combine PMU measurement data and power flow equations to form a hybrid power flow model. Technically, a model which combines the concept of observable islands and modeling of power flow conditions, is proposed. The model is called a Hybrid Power Flow Model as it has both PMU measurements and simulation assumptions, which describes prior knowledge available about whole power systems. By solving the hybrid power flow equations, the proposed method can be used to derive power system states to improve the situational awareness of a power grid.

  18. WHAT THE SMART GRID MEANS TO AMERICANS | Department of Energy

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

    As part of this effort, DOE is also responsible for increasing awareness of our nation's Smart Grid. Building upon The Smart Grid: An Introduction, a DOE-sponsored publication ...

  19. WHAT A SMART GRID MEANS TO OUR NATION'S FUTURE. | Department...

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

    As part of this effort, DOE is also responsible for increasing awareness of our nation's Smart Grid. Building upon The Smart Grid: An Introduction, a DOE-sponsored publication ...

  20. HOW THE SMART GRID PROMOTES A GREENER FUTURE. | Department of...

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

    As part of this effort, DOE is also responsible for increasing awareness of our nation's Smart Grid. Building upon The Smart Grid: An Introduction, a DOE-sponsored publication ...

  1. Grid Architecture

    Office of Energy Efficiency and Renewable Energy (EERE)

    This report describes the discipline of grid architecture and shows how it has been adapted from the combination of system architecture, network theory, and control engineering to apply to the issues of grid modernization. It shows how grid architecture aids in managing complexity, supports stakeholder communication about the grid, supplies methods to identify gaps and constraints, and provides the ability to compare architectural choices analytically. This approach views the grid as a network of structures, including electrical structure, industry, regulatory, and market structure, information systems and communications, and control and coordination structures and provides the means to understand and plan their interactions. The report then provides architectural views of the existing US power grid structures, with regional and other specializations. It illustrates how organized central wholesale markets are integrated with bulk system control, how distribution level changes related to penetration of Distributed Energy Resources impact both distribution and bulk systems operations, and how certain existing grid structures limit the ability to implement forward-looking changes to the grid. Finally the report provides selected forward looking architectural views for advanced distribution, integrated storage, and wide scale coordination via layered decomposition. The report contains a number of explicitly labeled architectural insights to aid in managing the complexity of grid modernization.

  2. SMART GRID:

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

    the SMART GRID: an introduction. Exploring the imperative of revitalizing America's electric infrastructure. How a smarter grid works as an enabling engine for our economy, our environment and our future. prepared for the U.S. Department of Energy by Litos Strategic Communication under contract No. DE-AC26-04NT41817, Subtask 560.01.04 the SMART GRID: an introduction. the SMART GRID: an introduction. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United

  3. National Transmission Grid Study: 2002

    Broader source: Energy.gov [DOE]

    National Transmission Grid Study: The National Energy Policy Plan directed the U.S. Department of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity...

  4. DOE

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

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

  5. DOE

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

    O 580 .1 A Admin Chg 1 3 10-23 2012 U.S. Department of Energyadmin change DOE O XXX.XWashington, D.C. DOE O XXX.X Chg X: XX-XX-XXXX SUBJECT: ADMINISTRATIVE CHANGE TO DOE O XXX.X, TITLE (IN ITALICS) EXPLANATION OF CHANGES. [This information can be copied from the Approval Memo] LOCATIONS OF CHANGES: Page Paragraph Changed To [Original text that was changed] [Revised text]

  6. Panel 3, Electrolysis for Grid Energy Storage

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

    Electrolysis for Grid Energy Storage DOE-Industry Canada Workshop May 15, 2014 INTRODUCTION ... paying for demand management - that the system is a responsive load and can meet ...

  7. Articles about Grid Integration and Transmission | Department...

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

    about grid integration and transmission featured by the U.S. Department of Energy (DOE) Wind Program. September 16, 2015 Argonne National Laboratory Develops New Model to Quantify...

  8. Transforming Power Grid Operations via High Performance Computing

    SciTech Connect (OSTI)

    Huang, Zhenyu; Nieplocha, Jarek

    2008-07-31

    Past power grid blackout events revealed the adequacy of grid operations in responding to adverse situations partially due to low computational efficiency in grid operation functions. High performance computing (HPC) provides a promising solution to this problem. HPC applications in power grid computation also become necessary to take advantage of parallel computing platforms as the computer industry is undergoing a significant change from the traditional single-processor environment to an era for multi-processor computing platforms. HPC applications to power grid operations are multi-fold. HPC can improve todays grid operation functions like state estimation and contingency analysis and reduce the solution time from minutes to seconds, comparable to SCADA measurement cycles. HPC also enables the integration of dynamic analysis into real-time grid operations. Dynamic state estimation, look-ahead dynamic simulation and real-time dynamic contingency analysis can be implemented and would be three key dynamic functions in future control centers. HPC applications call for better decision support tools, which also need HPC support to handle large volume of data and large number of cases. Given the complexity of the grid and the sheer number of possible configurations, HPC is considered to be an indispensible element in the next generation control centers.

  9. Overture: The grid classes

    SciTech Connect (OSTI)

    Brislawn, K.; Brown, D.; Chesshire, G.; Henshaw, W.

    1997-01-01

    Overture is a library containing classes for grids, overlapping grid generation and the discretization and solution of PDEs on overlapping grids. This document describes the Overture grid classes, including classes for single grids and classes for collections of grids.

  10. Grid Software and Services

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

    allow you to access NERSC (and other Grid enabled computing facilities) via grid interfaces. Grid certificates are credentials that must be initialized for use with grid tools. ...

  11. MELCOR calculations for a low-pressure short-term station blackout in a BWR-6

    SciTech Connect (OSTI)

    Carbajo, J.J. [Martin Marietta Energy Systems, Oak Ridge, TN (United States)

    1995-12-31

    A postulated, low-pressure, short term station blackout severe accident has been analyzed using the MELCOR code for the Grand Gulf nuclear power plant. Different versions have been used with three different models of the plant. This paper presents results of the effects of different plant models and versions of MELCOR on the calculated results and to present the best-estimating timing of events for this transient.

  12. Elforsk Smart grid programme (Smart Grid Project) | Open Energy...

    Open Energy Info (EERE)

    in Europe Smart Grid Projects - Smart Meter and AMI Smart Grid Projects - Grid Automation Transmission Smart Grid Projects - Grid Automation Distribution Smart Grid Projects...

  13. Electrical vehicles impacts on the grids (Smart Grid Project...

    Open Energy Info (EERE)

    Smart Grid Projects Smart Grid Projects in Europe Smart Grid Projects - Grid Automation Distribution Smart Grid Projects - Home application Smart Grid Projects - Customer...

  14. Comments of Avista Corporation on DOE Request forInformation...

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

    Grid: Data Access, Third Party Use, and Privacy Comments of Avista Corporation on DOE ... Grid: Data Access, Third Party Use, and Privacy Comments of Avista Corporation on DOE ...

  15. EAC Recommendations for DOE Action Regarding Consumer Acceptance...

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

    Consumer Acceptance of Smart Grid - June 6, 2013 EAC Recommendations for DOE Action Regarding Consumer Acceptance of Smart Grid - June 6, 2013 EAC Recommendations for DOE Action ...

  16. Regulatory/backfit analysis for the resolution of Unresolved Safety Issue A-44, Station Blackout

    SciTech Connect (OSTI)

    Rubin, A.M.

    1988-06-01

    Station blackout is the complete loss of alternating current (ac) electric power to the essential and nonessential buses in a nuclear power plant; it results when both offsite power and the onsite emergency ac power systems are unavailable. Because many safety systems required for reactor core decay heat removal and containment heat removal depend on ac power, the consequences of a station blackout could be severe. Because of the concern about the frequency of loss of offsite power, the number of failures of emergency diesel generators, and the potentially severe consequences of a loss of all ac power, ''Station Blackout'' was designated as Unresolved Safety Issue (USI) A-44. This report presents the regulatory/backfit analysis for USI A-44. It includes (1) a summary of the issue, (2) the recommended technical resolution, (3) alternative resolutions considered by the Nuclear Regulatory Commission (NRC) staff, (4) an assessment of the benefits and costs of the recommended resolution, (5) the decision rationale, (6) the relationship between USI A-44 and other NRC programs and requirements, and (7) a backfit analysis demonstrating that the resolution of USI A-44 complies with the backfit rule (10 CFR 50.109).

  17. Regulatory analysis for the resolution of Unresolved Safety Issue A-44, Station Blackout. Draft report

    SciTech Connect (OSTI)

    Rubin, A.M.

    1986-01-01

    ''Station Blackout'' is the complete loss of alternating current (ac) electric power to the essential and nonessential buses in a nuclear power plant; it results when both offsite power and the onsite emergency ac power systems are unavailable. Because many safety systems required for reactor core decay heat removal and containment heat removal depend on ac power, the consequences of a station blackout could be severe. Because of the concern about the frequency of loss of offsite power, the number of failures of emergency diesel generators, and the potentially severe consequences of a loss of all ac power, ''Station Blackout'' was designated as Unresolved Safety Issue (USI) A-44. This report presents the regulatory analysis for USI A-44. It includes: (1) a summary of the issue, (2) the proposed technical resolution, (3) alternative resolutions considered by the Nuclear Regulatory Commission (NRC) staff, (4) an assessment of the benefits and costs of the recommended resolution, (5) the decision rationale, and (6) the relationship between USI A-44 and other NRC programs and requirements.

  18. Modeling Advanced Neutron Source reactor station blackout accident using RELAP5

    SciTech Connect (OSTI)

    Chen, N.C.J. (Oak Ridge National Lab., TN (USA)); Fletcher, C.D. (EG and G Idaho, Inc., Idaho Falls, ID (USA))

    1990-01-01

    The Advanced Neutron Source (ANS) system model using RELAP5 has been developed to perform loss-of-coolant accident (LOCA) and non-LOCA transients as safety-related input for early design considerations. The transients studies include LOCA, station blackout, and reactivity insertion accidents. The small-, medium-, and large-break LOCA results were presented and documented. This paper will focus on the station blackout scenario. The station blackout analyses have concentrated on thermal-hydraulic system response with and without accumulators. Five transient calculations were performed to characterize system performance using various numbers and sizes of accumulators at several key sites. The main findings will be discussed with recommendations for conceptual design considerations. ANS is a state-of-the-art research reactor to be built and operated at high heat flux, high mass flux, and high coolant subcooling. To accommodate these features, three ANS-specific changes were made in the RELAP5 code by adding: the Petukhov heat transfer correlation for single-phase forced convection in the thin coolant channel; the Gambill additive method with the Weatherhead wall superheat for the critical heat flux; and the Griffith drift flux model for the interfacial drag in the slug flow regime. 7 refs., 6 figs., 1 tab.

  19. Grid Integration

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

    ... The nation's electricity grid relies on power transmission from the production source-be it a coal-fired plant, solar array, or wind farm-to the consumer. Long-distance ...

  20. Cybersecurity and the Smarter Grid (October 2014) | Department of Energy

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

    Cybersecurity and the Smarter Grid (October 2014) Cybersecurity and the Smarter Grid (October 2014) An article by OE's Carol Hawk and Akhlesh Kaushiva in The Electricity Journal discusses cybersecurity for the power grid and how DOE and the energy sector are partnering to keep the smart grid reliable and secure. The article also presents insights of four Smart Grid Investment Grant (SGIG) recipients that are advancing state of the art of power grid security by designing cybersecurity into the

  1. AARP submits the following comments on consumers and smart grid issues in response to the Request for Information (Request or RFI) on smart grid policy and logistical challenges, published by the Department of Energy (DOE) on September 16, 2010

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

    AARP, National Consumer Law Center, and Public Citizen Comments to: DEPARTMENT OF ENERGY Smart Grid RFI: Addressing Policy and Logistical Challenges David Certner Legislative Counsel and Legislative Policy Director AARP Government Relations and Advocacy Olivia Wein, Staff Attorney National Consumer Law Center Tyson Slocum, Director Public Citizen's Energy Program November 1, 2010 2 CONSUMER COMMENTERS: AARP, National Consumer Law Center, and Public Citizen submit the following comments on

  2. Smart Grid Integration Laboratory

    SciTech Connect (OSTI)

    Troxell, Wade

    2011-12-22

    The initial federal funding for the Colorado State University Smart Grid Integration Laboratory is through a Congressionally Directed Project (CDP), DE-OE0000070 Smart Grid Integration Laboratory. The original program requested in three one-year increments for staff acquisition, curriculum development, and instrumentation all which will benefit the Laboratory. This report focuses on the initial phase of staff acquisition which was directed and administered by DOE NETL/ West Virginia under Project Officer Tom George. Using this CDP funding, we have developed the leadership and intellectual capacity for the SGIC. This was accomplished by investing (hiring) a core team of Smart Grid Systems engineering faculty focused on education, research, and innovation of a secure and smart grid infrastructure. The Smart Grid Integration Laboratory will be housed with the separately funded Integrid Laboratory as part of CSU's overall Smart Grid Integration Center (SGIC). The period of performance of this grant was 10/1/2009 to 9/30/2011 which included one no cost extension due to time delays in faculty hiring. The Smart Grid Integration Laboratory's focus is to build foundations to help graduate and undergraduates acquire systems engineering knowledge; conduct innovative research; and team externally with grid smart organizations. Using the results of the separately funded Smart Grid Workforce Education Workshop (May 2009) sponsored by the City of Fort Collins, Northern Colorado Clean Energy Cluster, Colorado State University Continuing Education, Spirae, and Siemens has been used to guide the hiring of faculty, program curriculum and education plan. This project develops faculty leaders with the intellectual capacity to inspire its students to become leaders that substantially contribute to the development and maintenance of Smart Grid infrastructure through topics such as: (1) Distributed energy systems modeling and control; (2) Energy and power conversion; (3) Simulation of

  3. Evaluating the Effect of Upgrade, Control and Development Strategies on Robustness and Failure Risk of the Power Transmission Grid

    SciTech Connect (OSTI)

    Newman, David E; Carreras, Benjamin A; Lynch, Vickie E; Dobson, Ian

    2008-01-01

    We use the OPA complex systems model of the power transmission system to investigate the effect of a series of different network upgrade scenarios on the long time dynamics and the probability of large cascading failures. The OPA model represents the power grid at the level of DC load flow and LP generation dispatch and represents blackouts caused by randomly triggered cascading line outages and overloads. We examine the effect of increased component reliability on the long-term risks, the effect of changing operational margins and the effect of redundancy on those same long-term risks. The general result is that while increased reliability of the components decreases the probability of small blackouts, depending on the implementation, it actually can increase the probability of large blackouts. When we instead increase some types of redundancy of the system there is an overall decrease in the large blackouts. As some of these results are counter intuitive these studies suggest that care must be taken when making what seem to be logical upgrade decisions.

  4. Sandia Energy - Transmission Grid Integration

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

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

  5. Sandia Energy - Distribution Grid Integration

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

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

  6. Final Report for DOE grant DE-FG02-07ER64432 "New Grid and Discretization Technologies for Ocean and Ice Simulations"

    SciTech Connect (OSTI)

    Gunzburger, Max

    2013-03-12

    The work reported is in pursuit of these goals: high-quality unstructured, non-uniform Voronoi and Delaunay grids; improved finite element and finite volume discretization schemes; and improved finite element and finite volume discretization schemes. These are sought for application to spherical and three-dimensional applications suitable for ocean, atmosphere, ice-sheet, and other climate modeling applications.

  7. Customer Value Proposition Smart Grid (KEL) (Smart Grid Project...

    Open Energy Info (EERE)

    Smart Grid Projects Smart Grid Projects in Europe Smart Grid Projects - Smart Meter and AMI Smart Grid Projects - Home application Smart Grid Projects - Customer Behavior...

  8. Evaluation of station blackout accidents at nuclear power plants: Technical findings related to unresolved safety issue A-44: Final report

    SciTech Connect (OSTI)

    Not Available

    1988-06-01

    ''Station Blackout,'' which is the complete loss of alternating current (AC) electrical power in a nuclear power plant, has been designated as Unresolved Safety Issue A-44. Because many safety systems required for reactor core decay heat removal and containment heat removal depend on AC power, the consequences of a station blackout could be severe. This report documents the findings of technical studies performed as part of the program to resolve this issue. The important factors analyzed include: the fequency of loss of offsite power; the probability that emergency or onsite AC power supplies would be unavailable; the capability and reliability of decay heat removal systems independent of AC power; and the likelihood that offsite power would be restored before systems that cannot operate for extended periods without AC power fail, thus resulting in core damage. This report also addresses effects of different designs, locations, and operational features on the estimated frequency of core damage resulting from station blackout events.

  9. Containment pressurization and burning of combustible gases in a large, dry PWR containment during a station blackout sequence

    SciTech Connect (OSTI)

    Lee, M.; Fan, C.T. (National Tsing-Hua Univ., Dept. of Nuclear Engineering, Hsinchu (TW))

    1992-07-01

    In this paper, responses of a large, dry pressurized water reactor (PWR) containment in a station blackout sequence are analyzed with the CONTAIN, MARCH3, and MAAP codes. Results show that the predicted containment responses in a station blackout sequence of these three codes are substantially different. Among these predictions, the MAAP code predicts the highest containment pressure because of the large amount of water made available to quench the debris upon vessel failure. The gradual water boiloff by debris pressurizes the containment. The combustible gas burning models in these codes are briefly described and compared.

  10. Machine Learning for the Grid (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Machine Learning for the Grid Citation Details In-Document Search Title: Machine Learning for the Grid You are accessing a document from the Department of Energy's (DOE) SciTech ...

  11. 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 ...

  12. Running Grid Jobs

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

    Running Grid Jobs Running Grid Jobs How to submit a grid job to NERSC The following NERSC resources support job submission via Grid interfaces. Remote job submission is based on ...

  13. Grid Integration

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

    2 - 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 Nuclear Energy Nuclear

  14. Grid Integration

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

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

  15. Grid Integration

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

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

  16. SMART Grid

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

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

  17. Grid Modernization

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

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

  18. Progress Energy draft regarding Smart Grid RFI: Addressing Policy and

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

    Logistical Challenges | Department of Energy Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges Progress Energy draft regarding Smart Grid RFI: Addressing Policy and Logistical Challenges (549.44 KB) More Documents & Publications Comments of DRSG to DOE Smart Grid

  19. Vision of the Future Grid | Department of Energy

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

    DOE Grid Tech Team » Vision of the Future Grid Vision of the Future Grid Vision of the Future Grid The GTT developed a draft vision (below) which describes a future electricity system and lists several key attributes of that system. In its current form, this vision incorporates comments made by stakeholders during meetings organized by the GTT. The vision will continue to evolve and be refined as the GTT engages with the broader stakeholder community. Vision of the Future Grid A seamless,

  20. Principal Characteristics of a Modern Grid

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

    Structuring the Smart Grid Framework: Application of Complex Systems Engineering Joe Miller - DOE / NETL Modern Grid Team Lead Committee on Science, Engineering, and Public Policy May 15, 2009 1 Conducted by the National Energy Technology Laboratory Funded by the U.S. Department of Energy, Office of Electricity Delivery and Energy Reliability Office of Electricity Delivery and Energy Reliability MODERN GRID S T R A T E G Y This material is based upon work supported by the Department of Energy

  1. Installing a Grid-Tied Photovoltaic System

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

    Generating Renewable Ideas for Development Alternatives GRID Alternatives - Solar Affordable Housing Program * Susie Chang, Director of Tribal Programs * Evelyn Blanco, Outreach Coordinator DOE Office of Indian Energy - Tribal Leader Forum - Financing and Investing in Tribal Renewable Energy Projects Generating Renewable Ideas for Development Alternatives Session Agenda  I. GRID Alternatives' Model  II. GRID and the SASH Program: Eligibility Requirements and Tribal Participation  III.

  2. Grid Architecture

    SciTech Connect (OSTI)

    Taft, Jeffrey D.; Becker-Dippmann, Angela S.

    2015-03-02

    This work was done at the request of the U.S. Department of Energy (DOE), specifically with respect to issues relevant to U.S. electric transmission, storage and distribution infrastructure.

  3. ESBWR response to an extended station blackout/loss of all AC power

    SciTech Connect (OSTI)

    Barrett, A. J.; Marquino, W.

    2012-07-01

    U.S. federal regulations require light water cooled nuclear power plants to cope with Station Blackouts for a predetermined amount of time based on design factors for the plant. U.S. regulations define Station Blackout (SBO) as a loss of the offsite electric power system concurrent with turbine trip and unavailability of the onsite emergency AC power system. According to U.S. regulations, typically the coping period for an SBO is 4 hours and can be as long as 16 hours for currently operating BWR plants. Being able to cope with an SBO and loss of all AC power is required by international regulators as well. The U.S. licensing basis for the ESBWR is a coping period of 72 hours for an SBO based on U.S. NRC requirements for passive safety plants. In the event of an extended SBO (viz., greater than 72 hours), the ESBWR response shows that the design is able to cope with the event for at least 7 days without AC electrical power or operator action. ESBWR is a Generation III+ reactor design with an array of passive safety systems. The ESBWR primary success path for mitigation of an SBO event is the Isolation Condenser System (ICS). The ICS is a passive, closed loop, safety system that initiates automatically on a loss of power. Upon Station Blackout or loss of all AC power, the ICS begins removing decay heat from the Reactor Pressure Vessel (RPV) by (i) condensing the steam into water in heat exchangers located in pools of water above the containment, and (ii) transferring the decay heat to the atmosphere. The condensed water is then returned by gravity to cool the reactor again. The ICS alone is capable of maintaining the ESBWR in a safe shutdown condition after an SBO for an extended period. The fuel remains covered throughout the SBO event. The ICS is able to remove decay heat from the RPV for at least 7 days and maintains the reactor in a safe shutdown condition. The water level in the RPV remains well above the top of active fuel for the duration of the SBO event

  4. National Transmission Grid Study: 2002 | Department of Energy

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

    of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity transmission grid and to identify transmission bottlenecks and measures to...

  5. Improving the Reliability and Resiliency of the US Electric Grid...

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

    The quarterly magazine Metering International is a resource for information on trends and developments in the industry. Issue 1 2012 (March) featured an article on DOE's Smart Grid ...

  6. Electricity Grid Basics Webinar Presentation Slides and Text Version

    Office of Energy Efficiency and Renewable Energy (EERE)

    Download presentation slides and a text version of the audio from the DOE Office of Indian Energy webinar on electricity grid basics.

  7. Electricity Grid Basics Webinar Presentation Slides and Text...

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

    Electricity Grid Basics Webinar Presentation Slides and Text Version Download presentation slides and a text version of the audio from the DOE Office of Indian Energy webinar on ...

  8. Request for Information on the Electric Grid Resilience Self...

    Energy Savers [EERE]

    Grid Resilience Self-Assessment Tool for Distribution Systems: Federal Register Notice, Volume 80, No. 126 - Jul. 1, 2015 The Department of Energy (DOE) Office of Electricity ...

  9. 2012 Smart Grid Peer Review Presentations - Day 2 Morning Session...

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

    Day 2 morning session are below. Moderator: Merrill Smith, DOE 2012 SG Peer Review - Recovery Act: Pacific Northwest Smart Grid Demonstration Project - Ron Melton, Battelle ...

  10. Smart Grid Demonstration Project

    SciTech Connect (OSTI)

    Miller, Craig; Carroll, Paul; Bell, Abigail

    2015-03-11

    The National Rural Electric Cooperative Association (NRECA) organized the NRECA-U.S. Department of Energy (DOE) Smart Grid Demonstration Project (DE-OE0000222) to install and study a broad range of advanced smart grid technologies in a demonstration that spanned 23 electric cooperatives in 12 states. More than 205,444 pieces of electronic equipment and more than 100,000 minor items (bracket, labels, mounting hardware, fiber optic cable, etc.) were installed to upgrade and enhance the efficiency, reliability, and resiliency of the power networks at the participating co-ops. The objective of this project was to build a path for other electric utilities, and particularly electrical cooperatives, to adopt emerging smart grid technology when it can improve utility operations, thus advancing the co-ops’ familiarity and comfort with such technology. Specifically, the project executed multiple subprojects employing a range of emerging smart grid technologies to test their cost-effectiveness and, where the technology demonstrated value, provided case studies that will enable other electric utilities—particularly electric cooperatives— to use these technologies. NRECA structured the project according to the following three areas: Demonstration of smart grid technology; Advancement of standards to enable the interoperability of components; and Improvement of grid cyber security. We termed these three areas Technology Deployment Study, Interoperability, and Cyber Security. Although the deployment of technology and studying the demonstration projects at coops accounted for the largest portion of the project budget by far, we see our accomplishments in each of the areas as critical to advancing the smart grid. All project deliverables have been published. Technology Deployment Study: The deliverable was a set of 11 single-topic technical reports in areas related to the listed technologies. Each of these reports has already been submitted to DOE, distributed to co-ops, and

  11. Department of Energy Announces $8.5 Million to Advance Solar Energy Grid Integration Systems

    Broader source: Energy.gov [DOE]

    Stage III awards through DOE's Sandia National Laboratories to help advance solar energy deployment and grid reliability

  12. Proposed SPAR Modeling Method for Quantifying Time Dependent Station Blackout Cut Sets

    SciTech Connect (OSTI)

    John A. Schroeder

    2010-06-01

    Abstract: The U.S. Nuclear Regulatory Commissions (USNRCs) Standardized Plant Analysis Risk (SPAR) models and industry risk models take similar approaches to analyzing the risk associated with loss of offsite power and station blackout (LOOP/SBO) events at nuclear reactor plants. In both SPAR models and industry models, core damage risk resulting from a LOOP/SBO event is analyzed using a combination of event trees and fault trees that produce cut sets that are, in turn, quantified to obtain a numerical estimate of the resulting core damage risk. A proposed SPAR method for quantifying the time-dependent cut sets is sometimes referred to as a convolution method. The SPAR method reflects assumptions about the timing of emergency diesel failures, the timing of subsequent attempts at emergency diesel repair, and the timing of core damage that may be different than those often used in industry models. This paper describes the proposed SPAR method.

  13. Comparative Study of Station Blackout Counterpart Tests in APEX and ROSA/AP600

    SciTech Connect (OSTI)

    Lafi, Abd Y.; Reyes, Jose N. Jr.

    2000-05-15

    A comparison is presented between station blackout tests conducted in both the Advanced Plant Experiment (APEX) facility and in the modified Rig of Safety Assessment (ROSA/AP600) Large-Scale Test Facility. The comparison includes the depressurization and liquid-level behavior during secondary-side blowdown, natural circulation, automatic depressurization system operation, and in-containment refueling water storage tank injection. Reasonable agreement between the test results from APEX NRC-2 and ROSA/AP600 AP-BO-01 has been observed with respect to the timing of depressurization and liquid draining rates. This indicates that the reduced height and pressure scaling of APEX preserves the sequence of events relative to the full-height and pressure ROSA/AP600.

  14. New time-line technique for station blackout core-melt analysis

    SciTech Connect (OSTI)

    Stutzke, M.A.

    1986-01-01

    Florida Power Corporation (FPC) has developed a new method for analyzing station blackout (SBO) core-melt accidents. This method, created during the recent probabilistic risk assessment (PRA) of Crystal River Unit 3 (CR-3), originated from the need to analyze the interactions among the two-train emergency feedwater (EFW) system, station batteries, and diesel generators (DGs) following a loss of off-site power (LOSP) event. SBO core-melt sequences for CR-3 are unique since the time core-melt commences depends on which DG fails last. The purpose of this paper is to outline the new method of analysis of SBO core-melt accidents at CR-3. The significance of SBO core-melt accidents to total plant risk, along with the efficacy of various methods to reduce SBO risk, are also discussed.

  15. Source term experiment STEP-3 simulating a PWR severe station blackout

    SciTech Connect (OSTI)

    Simms, R.; Baker, L. Jr.; Ritzman, R.L.

    1987-05-21

    For a severe PWR accident that leads to a loss of feedwater to the steam generators, such as might occur in a station blackout, fission product decay heating will cause a water boiloff. Without effective cooling of the core, steam will begin to oxidize the Zircaloy cladding. The noble gases and volatile fission products, such as Cs and I, that are major contributors to the radiological source term, will be released from the damaged fuel shortly after cladding failure. The accident environment when these volatile fission products escape was simulated in STEP-3 using four fuel elements from the Belgonucleaire BR3 reactor. The primary objective was to examine the releases in samples collected as close to the test zone as possible. In this paper, an analysis of the temperatures and hydrogen generation is compared with the measurements. The analysis is needed to estimate releases and characterize conditions at the source for studies of fission product transport.

  16. Demonstration of fully coupled simplified extended station black-out accident simulation with RELAP-7

    SciTech Connect (OSTI)

    Zhao, Haihua; Zhang, Hongbin; Zou, Ling; Anders, David; Martineau, Richard

    2014-10-01

    The RELAP-7 code is the next generation nuclear reactor system safety analysis code being developed at the Idaho National Laboratory (INL). The RELAP-7 code develop-ment effort started in October of 2011 and by the end of the second development year, a number of physical components with simplified two phase flow capability have been de-veloped to support the simplified boiling water reactor (BWR) extended station blackout (SBO) analyses. The demonstration case includes the major components for the primary system of a BWR, as well as the safety system components for the safety relief valve (SRV), the reactor core isolation cooling (RCIC) system, and the wet well. Three scenar-ios for the SBO simulations have been considered. Since RELAP-7 is not a severe acci-dent analysis code, the simulation stops when fuel clad temperature reaches damage point. Scenario I represents an extreme station blackout accident without any external cooling and cooling water injection. The system pressure is controlled by automatically releasing steam through SRVs. Scenario II includes the RCIC system but without SRV. The RCIC system is fully coupled with the reactor primary system and all the major components are dynamically simulated. The third scenario includes both the RCIC system and the SRV to provide a more realistic simulation. This paper will describe the major models and dis-cuss the results for the three scenarios. The RELAP-7 simulations for the three simplified SBO scenarios show the importance of dynamically simulating the SRVs, the RCIC sys-tem, and the wet well system to the reactor safety during extended SBO accidents.

  17. Ion mobility spectrometer with virtual aperture grid

    DOE Patents [OSTI]

    Pfeifer, Kent B. (Los Lunas, NM); Rumpf, Arthur N. (Albuquerque, NM)

    2010-11-23

    An ion mobility spectrometer does not require a physical aperture grid to prevent premature ion detector response. The last electrodes adjacent to the ion collector (typically the last four or five) have an electrode pitch that is less than the width of the ion swarm and each of the adjacent electrodes is connected to a source of free charge, thereby providing a virtual aperture grid at the end of the drift region that shields the ion collector from the mirror current of the approaching ion swarm. The virtual aperture grid is less complex in assembly and function and is less sensitive to vibrations than the physical aperture grid.

  18. Human Factors for Situation Assessment in Grid Operations

    SciTech Connect (OSTI)

    Guttromson, Ross T.; Schur, Anne; Greitzer, Frank L.; Paget, Mia L.

    2007-08-08

    Executive Summary Despite advances in technology, power system operators must assimilate overwhelming amounts of data to keep the grid operating. Analyses of recent blackouts have clearly demonstrated the need to enhance the operators situation awareness (SA). The long-term objective of this research is to integrate valuable technologies into the grid operator environment that support decision making under normal and abnormal operating conditions and remove non-technical barriers to enable the optimum use of these technologies by individuals working alone and as a team. More specifically, the research aims to identify methods and principles to increase SA of grid operators in the context of system conditions that are representative or common across many operating entities and develop operationally relevant experimental methods for studying technologies and operational practices which contribute to SA. With increasing complexity and interconnectivity of the grid, the scope and complexity of situation awareness have grown. New paradigms are needed to guide research and tool development aimed to enhance and improve operations. In reviewing related research, operating practices, systems, and tools, the present study established a taxonomy that provides a perspective on research and development surrounding power grid situation awareness and clarifies the field of human factors/SA for grid operations. Information sources that we used to identify critical factors underlying SA included interviews with experienced operational personnel, available historical summaries and transcripts of abnormal conditions and outages (e.g., the August 14, 2003 blackout), scientific literature, and operational policies/procedures and other documentation. Our analysis of August 2003 blackout transcripts and interviews adopted a different perspective than previous analyses of this material, and we complemented this analysis with additional interviews. Based on our analysis and a broad

  19. Sandia Energy - Grid Modernization Consortium

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

    Grid Modernization Consortium Home Stationary Power Safety, Security & Resilience of Energy Infrastructure Grid Modernization Renewable Energy Integration Grid Modernization...

  20. Ambient Corporation's Reply comments to DOE RFI: Addressing Policy...

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

    to DOE RFI: Addressing Policy and Logistical Challenges to Smart Grid Implementation Ambient Corporation's ... to deploy cost-effective long-term smart grid benefits. ...

  1. EAC Recommendations for DOE Action Regarding Development of the...

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

    PDF icon EAC Recommendations for DOE Action on the Development of the Next Generation Grid ... Western Interconnections EAC Recommendations on Smart Grid Research and Development Needs

  2. SGIP Smart Grid Interoperabilty Panel

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

    to Grid Industry to Grid Business & Policy Vehicle to Grid Distributed Renewables, Generation & Storage Wireless Comm ... Smart Grid Information Model OPC Unified ...

  3. file://P:\Smart Grid\Smart Grid RFI Policy and Logistical Comme

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

    Docket: DOE-HQ-2010-0024 Policy and Logistical Challenges to Smart Grid Implementation Comment On: DOE-HQ-2010-0024-0001 Policy and Logistical Challenges to Smart Grid Implementation Document: DOE-HQ-2010-0024-DRAFT-0013 Comment on FR Doc # 2010-23251 Submitter Information Name: Address: Email: Phone: Organization: Toward Energy Efficient Municipalities, LLC General Comment I am seeking to develop America's first Smart Grid R&D Testing business campus on 200 near-enterprise zone acres owned

  4. Grid-based Production

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

    Grid-based Production Grid-based Production PDSF is a Tier 2 site for ALICE and as such has the infrastructure in place to run automated grid-based ALICE production jobs. The main...

  5. Nurbs and grid generation

    SciTech Connect (OSTI)

    Barnhill, R.E.; Farin, G.; Hamann, B.

    1995-12-31

    This paper provides a basic overview of NURBS and their application to numerical grid generation. Curve/surface smoothing, accelerated grid generation, and the use of NURBS in a practical grid generation system are discussed.

  6. EAC Recommendations for DOE Action Regarding Consumer Acceptance of Smart

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

    Grid - June 6, 2013 | Department of Energy Consumer Acceptance of Smart Grid - June 6, 2013 EAC Recommendations for DOE Action Regarding Consumer Acceptance of Smart Grid - June 6, 2013 EAC Recommendations for DOE Action Regarding Consumer Acceptance of Smart Grid, approved at the June 5-6, 2013 EAC Meeting. EAC Recommendations for DOE Action on Consumer Acceptance of Smart Grid - June 6, 2013 (338.72 KB) More Documents & Publications DOE Responses to EAC Work Products - September 2013

  7. Grid Modernization Research | Grid Modernization | NREL

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

    Grid Modernization Research NREL addresses the challenges of modernizing the electric grid through high-impact research and development in power systems engineering and resource assessment. The future electric grid must deliver reliable, affordable, and clean electricity to consumers where they want it, when they want it, and how they want it. As part of NREL's energy systems integration activities, grid modernization researchers work with the electricity industry, academia, and other research

  8. Distribution Grid Integration

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

    ... Energy, SMART Grid, Systems Analysis, Transmission Grid Integration, Wind Energy Sandia Contributes to International Electrotechnical Commission IEC 61400-26 Availability ...

  9. Transmission Grid Integration

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

    ... Energy, SMART Grid, Systems Analysis, Transmission Grid Integration, Wind Energy Sandia Contributes to International Electrotechnical Commission IEC 61400-26 Availability ...

  10. DOE SciDAC’s Earth System Grid Center for Enabling Technologies Final Report for University of Southern California Information Sciences Institute

    SciTech Connect (OSTI)

    Chervenak, Ann Louise

    2013-12-19

    The mission of the Earth System Grid Federation (ESGF) is to provide the worldwide climate-research community with access to the data, information, model codes, analysis tools, and intercomparison capabilities required to make sense of enormous climate data sets. Its specific goals are to (1) provide an easy-to-use and secure web-based data access environment for data sets; (2) add value to individual data sets by presenting them in the context of other data sets and tools for comparative analysis; (3) address the specific requirements of participating organizations with respect to bandwidth, access restrictions, and replication; (4) ensure that the data are readily accessible through the analysis and visualization tools used by the climate research community; and (5) transfer infrastructure advances to other domain areas. For the ESGF, the U.S. Department of Energy’s (DOE’s) Earth System Grid Center for Enabling Technologies (ESG-CET) team has led international development and delivered a production environment for managing and accessing ultra-scale climate data. This production environment includes multiple national and international climate projects (such as the Community Earth System Model and the Coupled Model Intercomparison Project), ocean model data (such as the Parallel Ocean Program), observation data (Atmospheric Radiation Measurement Best Estimate, Carbon Dioxide Information and Analysis Center, Atmospheric Infrared Sounder, etc.), and analysis and visualization tools, all serving a diverse user community. These data holdings and services are distributed across multiple ESG-CET sites (such as ANL, LANL, LBNL/NERSC, LLNL/PCMDI, NCAR, and ORNL) and at unfunded partner sites, such as the Australian National University National Computational Infrastructure, the British Atmospheric Data Centre, the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory, the Max Planck Institute for Meteorology, the German Climate Computing

  11. Energy storage for the electricity grid : benefits and market potential assessment guide : a study for the DOE Energy Storage Systems Program.

    SciTech Connect (OSTI)

    Eyer, James M.; Corey, Garth P.

    2010-02-01

    This guide describes a high-level, technology-neutral framework for assessing potential benefits from and economic market potential for energy storage used for electric-utility-related applications. The overarching theme addressed is the concept of combining applications/benefits into attractive value propositions that include use of energy storage, possibly including distributed and/or modular systems. Other topics addressed include: high-level estimates of application-specific lifecycle benefit (10 years) in $/kW and maximum market potential (10 years) in MW. Combined, these criteria indicate the economic potential (in $Millions) for a given energy storage application/benefit. The benefits and value propositions characterized provide an important indication of storage system cost targets for system and subsystem developers, vendors, and prospective users. Maximum market potential estimates provide developers, vendors, and energy policymakers with an indication of the upper bound of the potential demand for storage. The combination of the value of an individual benefit (in $/kW) and the corresponding maximum market potential estimate (in MW) indicates the possible impact that storage could have on the U.S. economy. The intended audience for this document includes persons or organizations needing a framework for making first-cut or high-level estimates of benefits for a specific storage project and/or those seeking a high-level estimate of viable price points and/or maximum market potential for their products. Thus, the intended audience includes: electric utility planners, electricity end users, non-utility electric energy and electric services providers, electric utility regulators and policymakers, intermittent renewables advocates and developers, Smart Grid advocates and developers, storage technology and project developers, and energy storage advocates.

  12. Pepco Holdings, Inc. Smart Grid RFI: Addressing Policy and Logistical

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

    Challenges | Department of Energy Holdings, Inc. Smart Grid RFI: Addressing Policy and Logistical Challenges Pepco Holdings, Inc. Smart Grid RFI: Addressing Policy and Logistical Challenges Pepco Holdings, Inc. Smart Grid RFI: Addressing Policy and Logistical Challenges. Pepco Holdings, Inc. (PHI) is pleased to respond to the US Department of Energy (DOE) request for information regarding addressing policy and logistical challenges to smart grid implementation. This follows on the heels of

  13. Eprice (Smart Grid Project) | Open Energy Information

    Open Energy Info (EERE)

    Cancel Submit Categories: Smart Grid Projects Smart Grid Projects in Europe Smart Grid Projects - Grid Automation Transmission Smart Grid Projects - Grid Automation Distribution...

  14. National transmission grid study

    SciTech Connect (OSTI)

    Abraham, Spencer

    2003-05-31

    The National Energy Policy Plan directed the U.S. Department of Energy (DOE) to conduct a study to examine the benefits of establishing a national electricity transmission grid and to identify transmission bottlenecks and measures to address them. DOE began by conducting an independent analysis of U.S. electricity markets and identifying transmission system bottlenecks using DOE’s Policy Office Electricity Modeling System (POEMS). DOE’s analysis, presented in Section 2, confirms the central role of the nation’s transmission system in lowering costs to consumers through increased trade. More importantly, DOE’s analysis also confirms the results of previous studies, which show that transmission bottlenecks and related transmission system market practices are adding hundreds of millions of dollars to consumers’ electricity bills each year. A more detailed technical overview of the use of POEMS is provided in Appendix A. DOE led an extensive, open, public input process and heard a wide range of comments and recommendations that have all been considered.1 More than 150 participants registered for three public workshops held in Detroit, MI (September 24, 2001); Atlanta, GA (September 26, 2001); and Phoenix, AZ (September 28, 2001).

  15. BWR station blackout: A RISMC analysis using RAVEN and RELAP5-3D

    SciTech Connect (OSTI)

    Mandelli, D.; Smith, C.; Riley, T.; Nielsen, J.; Alfonsi, A.; Cogliati, J.; Rabiti, C.; Schroeder, J.

    2016-01-01

    The existing fleet of nuclear power plants is in the process of extending its lifetime and increasing the power generated from these plants via power uprates and improved operations. In order to evaluate the impact of these factors on the safety of the plant, the Risk-Informed Safety Margin Characterization (RISMC) project aims to provide insights to decision makers through a series of simulations of the plant dynamics for different initial conditions and accident scenarios. This paper presents a case study in order to show the capabilities of the RISMC methodology to assess impact of power uprate of a Boiling Water Reactor system during a Station Black-Out accident scenario. We employ a system simulator code, RELAP5-3D, coupled with RAVEN which perform the stochastic analysis. Lastly, our analysis is performed by: 1) sampling values from a set of parameters from the uncertainty space of interest, 2) simulating the system behavior for that specific set of parameter values and 3) analyzing the outcomes from the set of simulation runs.

  16. BWR station blackout: A RISMC analysis using RAVEN and RELAP5-3D

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

    Mandelli, D.; Smith, C.; Riley, T.; Nielsen, J.; Alfonsi, A.; Cogliati, J.; Rabiti, C.; Schroeder, J.

    2016-01-01

    The existing fleet of nuclear power plants is in the process of extending its lifetime and increasing the power generated from these plants via power uprates and improved operations. In order to evaluate the impact of these factors on the safety of the plant, the Risk-Informed Safety Margin Characterization (RISMC) project aims to provide insights to decision makers through a series of simulations of the plant dynamics for different initial conditions and accident scenarios. This paper presents a case study in order to show the capabilities of the RISMC methodology to assess impact of power uprate of a Boiling Watermore » Reactor system during a Station Black-Out accident scenario. We employ a system simulator code, RELAP5-3D, coupled with RAVEN which perform the stochastic analysis. Lastly, our analysis is performed by: 1) sampling values from a set of parameters from the uncertainty space of interest, 2) simulating the system behavior for that specific set of parameter values and 3) analyzing the outcomes from the set of simulation runs.« less

  17. MELCOR Analysis of Steam Generator Tube Creep Rupture in Station Blackout Severe Accident

    SciTech Connect (OSTI)

    Liao, Y.; Vierow, K. [Purdue University (United States)

    2005-12-15

    A pressurized water reactor steam generator tube rupture (SGTR) is of concern because it represents a bypass of the containment for radioactive materials to the environment. In a station blackout accident, tube integrity could be threatened by creep rupture, particularly if cracks are present in the tube walls. Methods are developed herein to improve assessment capabilities for SGTR by using the severe-accident code MELCOR. Best-estimate assumptions based on recent research and computational fluid dynamics calculations are applied in the MELCOR analysis to simulate two-dimensional natural circulation and to determine the relative creep-rupture timing in the reactor coolant pressure boundary components. A new method is developed to estimate the steam generator (SG) hottest tube wall temperature and the tube critical crack size for the SG tubes to fail first. The critical crack size for SG tubes to fail first is estimated to be 20% of the wall thickness larger than by a previous analysis. Sensitivity studies show that the failure sequence would change if some assumptions are modified. In particular, the uncertainty in the countercurrent flow limit model could reverse the failure sequence of the SG tubes and surge line.

  18. Analysis of Kuosheng Station Blackout Accident Using MELCOR 1.8.4

    SciTech Connect (OSTI)

    Wang, S.-J.; Chien, C.-S.; Wang, T.-C.; Chiang, K.-S

    2000-11-15

    The MELCOR code, developed by Sandia National Laboratories, is a fully integrated, relatively fast-running code that models the progression of severe accidents in commercial light water nuclear power plants (NPPs).A specific station blackout (SBO) accident for Kuosheng (BWR-6) NPP is simulated using the MELCOR 1.8.4 code. The MELCOR input deck for Kuosheng NPP is established based on Kuosheng NPP design data and the MELCOR users' guides. The initial steady-state conditions are generated with a developed self-initialization algorithm. The main severe accident phenomena and the fission product release fractions associated with the SBO accident were simulated. The predicted results are plausible and as expected in light of current understanding of severe accident phenomena. The uncertainty of this analysis is briefly discussed. The important features of the MELCOR 1.8.4 are described. The estimated results provide useful information for the probabilistic risk assessment (PRA) of Kuosheng NPP. This tool will be applied to the PRA, the severe accident analysis, and the severe accident management study of Kuosheng NPP in the near future.

  19. Analysis of core uncovery time in Kuosheng station blackout transient with MELCOR

    SciTech Connect (OSTI)

    Wang, S.J.; Chien, C.S. [Inst. of Nuclear Energy Research, Lungtan (Taiwan, Province of China)

    1996-02-01

    The MELCOR code, developed by the Sandia National Laboratories, is capable of simulating severe accident phenomena of nuclear power plants. Core uncovery time is an important parameter in the probabilistic risk assessment. However, many MELCOR users do not generate the initial conditions in a station blackout (SBO) transient analysis. Thus, achieving reliable core uncovery time is difficult. The core uncovery time for the Kuosheng nuclear power plant during an SBO transient is analyzed. First, full-power steady-state conditions are generated with the application of a developed self-initialization algorithm. Then the response of the SBO transient up to core uncovery is simulated. The effects of key parameters including the initialization process and the reactor feed pump (RFP) coastdown time on the core uncovery time are analyzed. The initialization process is the most important parameter that affects the core uncovery time. Because SBO transient analysis, the correct initial conditions must be generated to achieve a reliable core uncovery time. The core uncovery time is also sensitive to the RFP coastdown time. A correct time constant is required.

  20. Station Blackout: A case study in the interaction of mechanistic and probabilistic safety analysis

    SciTech Connect (OSTI)

    Curtis Smith; Diego Mandelli; Cristian Rabiti

    2013-11-01

    The ability to better characterize and quantify safety margins is important to improved decision making about nuclear power plant design, operation, and plant life extension. As research and development (R&D) in the light-water reactor (LWR) Sustainability (LWRS) Program and other collaborative efforts yield new data, sensors, and improved scientific understanding of physical processes that govern the aging and degradation of plant SSCs needs and opportunities to better optimize plant safety and performance will become known. The purpose of the Risk Informed Safety Margin Characterization (RISMC) Pathway R&D is to support plant decisions for risk-informed margin management with the aim to improve economics, reliability, and sustain safety of current NPPs. In this paper, we describe the RISMC analysis process illustrating how mechanistic and probabilistic approaches are combined in order to estimate a safety margin. We use the scenario of a “station blackout” wherein offsite power and onsite power is lost, thereby causing a challenge to plant safety systems. We describe the RISMC approach, illustrate the station blackout modeling, and contrast this with traditional risk analysis modeling for this type of accident scenario.

  1. SOARCA Peach Bottom Atomic Power Station Long-Term Station Blackout Uncertainty Analysis: Knowledge Advancement.

    SciTech Connect (OSTI)

    Gauntt, Randall O.; Mattie, Patrick D.; Bixler, Nathan E.; Ross, Kyle; Cardoni, Jeffrey N; Kalinich, Donald A.; Osborn, Douglas M.; Sallaberry, Cedric Jean-Marie; Ghosh, S. Tina

    2014-02-01

    This paper describes the knowledge advancements from the uncertainty analysis for the State-of- the-Art Reactor Consequence Analyses (SOARCA) unmitigated long-term station blackout accident scenario at the Peach Bottom Atomic Power Station. This work assessed key MELCOR and MELCOR Accident Consequence Code System, Version 2 (MACCS2) modeling uncertainties in an integrated fashion to quantify the relative importance of each uncertain input on potential accident progression, radiological releases, and off-site consequences. This quantitative uncertainty analysis provides measures of the effects on consequences, of each of the selected uncertain parameters both individually and in interaction with other parameters. The results measure the model response (e.g., variance in the output) to uncertainty in the selected input. Investigation into the important uncertain parameters in turn yields insights into important phenomena for accident progression and off-site consequences. This uncertainty analysis confirmed the known importance of some parameters, such as failure rate of the Safety Relief Valve in accident progression modeling and the dry deposition velocity in off-site consequence modeling. The analysis also revealed some new insights, such as dependent effect of cesium chemical form for different accident progressions. (auth)

  2. Source-term experiment STEP-3 simulating a PWR severe station blackout

    SciTech Connect (OSTI)

    Simms, R.; Baker, L. Jr.; Ritzman, R.L.

    1987-01-01

    For a severe pressurized water reactor accident that leads to a loss of feedwater to the stream generators, such as might occur in a station blackout, fission product decay heating causes a water boil-off. Without effective decay heat removal, the fuel elements will be uncovered. Eventually, steam will oxidize the overheated cladding. The noble gases and volatile fission products, such as cesium and iodine, that are major contributors to the radiological source term will be released from the damaged fuel shortly after cladding failure. The accident environment when these volatile fission products escape was simulated in STEP-3 using four fuel elements from the Belgonucleaire BR3 reactor. The primary objective was to examine the releases in samples collected as close to the test zone as possible. In this paper, an analysis of the temperatures and hydrogen generation is compared with the measurements. The analysis is needed to estimate releases and characterize conditions at the source for studies of fission product transport.

  3. Analysis of fission product revaporization in a BWR reactor cooling system during a station blackout accident

    SciTech Connect (OSTI)

    Yang, J.W.; Schmidt, E.; Cazzoli, E.; Khatib-Rahbar, M.

    1988-01-01

    This report presents a preliminary analysis of fission product revaporization in the Reactor Cooling System (RCS) after the vessel failure. The station blackout transient for BWR Mark I Power Plant is considered. The TRAPMELT3 models of evaporization, chemisorption, and the decay heating of RCS structures and gases are adopted in the analysis. The RCS flow models based on the density-difference between the RCS and containment pedestal region are developed to estimate the RCS outflow which carries the revaporized fission product to the containment. A computer code called REVAP is developed for the analysis. The REVAP is incorporated with the MARCH, TRAPMELT3 and NAUA codes of the Source Term Code Pack Package (STCP). The NAUA code is used to estimate the impact of revaporization on environmental release. The results show that the thermal-hydraulic conditions between the RCS and the pedestal region are important factors determining the magnitude of revaporization and subsequent release of the volatile fission product. 8 figs., 1 tab.

  4. BWR station blackout: A RISMC analysis using RAVEN and RELAP5-3D

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

    Mandelli, D.; Smith, C.; Riley, T.; Nielsen, J.; Alfonsi, A.; Cogliati, J.; Rabiti, C.; Schroeder, J.

    2016-01-01

    The existing fleet of nuclear power plants is in the process of extending its lifetime and increasing the power generated from these plants via power uprates and improved operations. In order to evaluate the impact of these factors on the safety of the plant, the Risk-Informed Safety Margin Characterization (RISMC) project aims to provide insights to decision makers through a series of simulations of the plant dynamics for different initial conditions and accident scenarios. This paper presents a case study in order to show the capabilities of the RISMC methodology to assess impact of power uprate of a Boiling Watermore » Reactor system during a Station Black-Out accident scenario. We employ a system simulator code, RELAP5-3D, coupled with RAVEN which perform the stochastic analysis. Furthermore, our analysis is performed by: 1) sampling values from a set of parameters from the uncertainty space of interest, 2) simulating the system behavior for that specific set of parameter values and 3) analyzing the outcomes from the set of simulation runs.« less

  5. Planning for the Next Blackout: Optimizing the Use of Distributed Energy Resources

    SciTech Connect (OSTI)

    Glickman, Joan A.; Herrera, Shawn; Kline, Keith F.; Warwick, William M.

    2004-12-01

    Given recent blackouts and concerns of terrorist attacks, some public and private organizations are taking steps to produce their own heating, cooling, and power in the event of future, potentially prolonged, outages. For example, military installations, such as Fort Bragg in North Carolina, and the Marine Task Force Training Command in Twentynine Palms, California, turned to combined heat and power and other distributed energy technologies to reduce costs and simultaneously manage their energy and reliability needs. While these individual efforts can help ensure reliability for these facilities, public policies continue to discourage most individual public and private entities from making such investments. As a result, communities across the country are not adequately prepared to protect human health and ensure safety in the event of a prolonged emergency. Significant cost savings and social benefits can accrue if parties interested in emergency preparedness, energy efficiency, and environmentally preferred technologies, come together to identify and implement win-win solutions. This paper offers recommendations to help federal, state, and local governments, along with utilities, jointly plan and invest in cleaner distributed energy technologies to address growing reliability needs as well as environmental and emergency preparedness concerns.

  6. Parallel grid population

    DOE Patents [OSTI]

    Wald, Ingo; Ize, Santiago

    2015-07-28

    Parallel population of a grid with a plurality of objects using a plurality of processors. One example embodiment is a method for parallel population of a grid with a plurality of objects using a plurality of processors. The method includes a first act of dividing a grid into n distinct grid portions, where n is the number of processors available for populating the grid. The method also includes acts of dividing a plurality of objects into n distinct sets of objects, assigning a distinct set of objects to each processor such that each processor determines by which distinct grid portion(s) each object in its distinct set of objects is at least partially bounded, and assigning a distinct grid portion to each processor such that each processor populates its distinct grid portion with any objects that were previously determined to be at least partially bounded by its distinct grid portion.

  7. Smart Grid Newsletter …TheRegulators Role in Grid ModernizationŽ or Leadership from State Regulators can make the Smart G

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

    Title: "The Regulator's Role in Grid Modernization" Sponsor: The Modern Grid Strategy is a DOE-funded project conducted by the National Energy Technology Laboratory Leadership from state regulators can make the Smart Grid a reality In previous articles we discussed the principal characteristics that define a Modern (Smart) Grid. Armed with a much clearer understanding of what is a modern grid, and what technologies it will employ, we can now address a number of less technical issues.

  8. EERE & Buildings to Grid Integration

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

    EERE & Buildings to Grid Integration Joe Hagerman, Senior Advisor DOE Building Technologies Office July 22, 2015 EERE: Office of Energy Efficiency and Renewable Energy BTO: Building Technologies Office (Portfolio - RD&D, Deployment, Regulatory) Opportunity to Control Building Loads is Key to Integrating EE & RE effectively with the GRID! Buildings consume 74% electricity produced in the US (CBECS 2009) Buildings have the potential to reduce their consumption by 20%- 30% (18 quads or

  9. 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 ...

  10. gridFTP

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

    gridFTP gridFTP Currently only the archive.nersc.gov system is capable of handling GridFTP transfers to HPSS. It accomplishes this by using a special GSI enabled pftp server. Data transfers are multi-threaded but are handled with a single FTP server. Improvements are planned for the future. The pftp server handling GridFTP transfers is garchive.nersc.gov. GridFTP clients must authenticate/transfer to this server to send data to archive.nersc.gov. There are numerous GridFTP clients available that