Analysis of the Impact of Balancing Area Cooperation on the Operation of WECC and the Compounding Effect of Wind and Solar Generation

Jordan, G.; Piwko, Dick

doi:10.2172/1064538

Cited by 4 publications

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“…Interconnected power systems have advantages and disadvantages. One benefit of these systems is that capacity and energy can be shared among regions, lowering total costs (King et al 2012;Jordan and Piwko 2013;Milligan et al 2013). Also, because they are large, they can withstand a variety of events that might otherwise take down a smaller system; however, because of the interconnected nature of the system, a significant event has the potential to collapse the entire system.…”

Section: Electricity Marketsmentioning

confidence: 99%

Marginal Cost Pricing in a World without Perfect Competition: Implications for Electricity Markets with High Shares of Low Marginal Cost Resources

Frew

Clark

Bloom

et al. 2017

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Section: Electricity Marketsmentioning

confidence: 99%

Marginal Cost Pricing in a World without Perfect Competition: Implications for Electricity Markets with High Shares of Low Marginal Cost Resources

Frew

Clark

Bloom

et al. 2017

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“…This approach has been widely used in other studies that utilize production cost models to evaluate the economic benefit of coordination. NREL's analyses of energy imbalance marketsJordan and Piwko 2013), which examined increasing levels of coordination in the western United States under…”

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confidence: 99%

Greening the Grid: Pathways to Integrate 175 Gigawatts of Renewable Energy into India’s Electric Grid, Vol. 1. National Study

Palchak

Cochran

Deshmukh

et al. 2017

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The project team is greatly indebted to the many participating agencies that have supported this work. The study was funded by U.S. Agency for International Development (USAID) as a part of its Greening the Grid program. Other sponsors included U.S. Departments of Energy and State and the World Bank (Energy Sector Management Assistance Program). We would like to especially thank Secretary P K Pujari and Joint Secretary Jyoti Arora for their guidance. We would also like to acknowledge the contributions of K V

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Operating Reserve Reductions from a Proposed Energy Imbalance Market with Wind and Solar Generation in the Western Interconnection

King

Kirby²,

Milligan³

et al. 2012

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Executive SummaryOur analysis considers several alternative forms of an energy imbalance market (EIM) proposed in the nonmarket areas of the Western Interconnection. The proposed EIM includes two changes in operating practices that independently reduce variability and increase access to responsive resources: balancing authority cooperation and subhourly dispatch. As proposed, the EIM does not consider any form of coordinated unit commitment; however, over time, it is possible that balancing authorities would develop formal or informal plans to coordinate unit commitment. As the penetration of variable generation increases on the power system, additional interest in coordination would likely occur. Several alternative approaches could be used, but consideration of any form of coordinated unit commitment is beyond the scope of our analysis. This report examines the benefits of several possible EIM implementations-both separately and in concert.We calculated the need for flexibility reserve for several EIM footprints. This flexibility reserve requirement was estimated using a National Renewable Energy Laboratory method adapted from the Eastern Wind Integration and Transmission Study and is separate and distinct from contingency reserve requirements. The technique uses statistical analysis of simulated historical wind and solar generation to estimate reserve requirements at periods faster than the dispatch interval (regulation) and slower requirements (additional spin and non-spin reserve resources beyond what is needed to satisfy the contingency reserve requirement) to follow longer unforecasted changes in variable generation output. The additional flexibility reserve requirements are physically similar to, but distinct from, the existing reserves that are already required for regulation and contingencies. Each of these reserves is calculated for each hour of the year to create a dynamic reserve that can be deployed to manage forecasting errors over various time scales. Because this report assumes that contingency reserve obligations do not change with the increased use of variable generation, our discussion focuses on additional flexibility reserve throughout. Therefore, any reference to terms using spin or non-spin apply only to flexibility reserves that can be either spinning or non-spinning resources above and beyond what is needed to satisfy existing contingency reserve obligations.We used wind data developed for the recent Western Wind and Solar Integration Study, which was managed by the National Renewable Energy Laboratory on behalf of the U.S. Department of Energy [1]. Solar data were developed by the National Renewable Energy Laboratory for the Western Electricity Coordinating Council (WECC) Transmission Expansion Planning Policy Committee (TEPPC) 2020 planning case. The scenario is defined by the TEPPC 2020 Planning Case 0, which includes approximately 8% wind and 3% solar penetration in the Western Interconnection. Although this study used the TEPPC database, it is not associated with the TEPPC process....

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Analysis of the Impact of Balancing Area Cooperation on the Operation of WECC and the Compounding Effect of Wind and Solar Generation

Cited by 4 publications

References 0 publications

Marginal Cost Pricing in a World without Perfect Competition: Implications for Electricity Markets with High Shares of Low Marginal Cost Resources

Marginal Cost Pricing in a World without Perfect Competition: Implications for Electricity Markets with High Shares of Low Marginal Cost Resources

Greening the Grid: Pathways to Integrate 175 Gigawatts of Renewable Energy into India’s Electric Grid, Vol. 1. National Study

Operating Reserve Reductions from a Proposed Energy Imbalance Market with Wind and Solar Generation in the Western Interconnection

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