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The use of wholesale market purchases by U.S. electric utilities
Energy Strategy Reviews ( IF 8.2 ) Pub Date : 2020-06-08 , DOI: 10.1016/j.esr.2020.100508
Juan Pablo Carvallo , Sean P. Murphy , Alan Sanstad , Peter H. Larsen

Load Serving Entities (LSEs) can procure electricity from their owned generation or purchase it on bilateral or organized markets. Electric utility procurement decisions have important implications for rates, resource adequacy, environmental impacts, and LSE cost recovery. However, there is little or no research on trends of utility procurement practices—or the role of wholesale market transactions. This paper leverages information from the U.S. Department of Energy's Energy Information Administration, Berkeley Lab's Resource Planning Portal, and structured interviews with regulatory and utility staff. We find that use of market transactions to meet electric energy needs has been increasing across U.S. LSEs. The reasons for this trend include a general stagnation in building owned resources, a preference towards contracting renewable energy resources to meet RPS targets, and the lower relative cost of wholesale market electricity. Results suggest resource adequacy obligations may drive preferences for asset ownership more than a profit incentive. We also recommend improving the planning to procurement connection by incorporating operational constraints of market transactions within planning processes. These results provide insights on key issues in electric utility procurement that could improve overall market efficiency and identify practices that stakeholders should consider incorporating into their long-term capacity planning processes.



中文翻译:

美国电力公司对批发市场采购的使用

负载服务实体(LSE)可以从自己的发电中获取电力,也可以在双边或有组织的市场上购买电力。电力公用事业采购决策对费率,资源充足性,环境影响和LSE成本回收具有重要意义。但是,很少或没有关于公用事业采购实践趋势或批发市场交易的作用的研究。本文利用了来自美国能源部能源信息管理局,伯克利实验室的资源计划门户网站的信息,以及对监管人员和公用事业人员的结构化访谈。我们发现,在美国的LSE中,使用市场交易来满足电能需求的情况正在增加。造成这种趋势的原因包括建筑自有资源普遍停滞,优先选择合同可再生能源以满足RPS目标,以及批发市场电力的相对成本较低。结果表明,资源充足义务可能会推动对资产所有权的偏好,而不是对利润的激励。我们还建议通过将市场交易的操作约束纳入计划流程来改善计划与采购的联系。这些结果提供了有关电力公用事业采购中关键问题的见解,这些问题可以提高整体市场效率,并确定利益相关者应考虑纳入其长期容量规划流程的做法。结果表明,资源充足义务可能会推动对资产所有权的偏好,而不是对利润的激励。我们还建议通过将市场交易的操作约束纳入计划流程来改善计划与采购的联系。这些结果为电力公用事业采购中的关键问题提供了见解,这些问题可以提高整体市场效率,并确定利益相关者应考虑纳入其长期容量规划流程的做法。结果表明,资源充足义务可能会推动对资产所有权的偏好,而不是对利润的激励。我们还建议通过将市场交易的操作约束纳入计划流程来改善计划与采购的联系。这些结果为电力公用事业采购中的关键问题提供了见解,这些问题可以提高整体市场效率,并确定利益相关者应考虑纳入其长期容量规划流程的做法。

更新日期:2020-06-08
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