EAGER: Renewables: Selling Demand Flexibility in The Future Electricity Grid

EAGER：可再生能源：销售未来电网的需求灵活性

• 批准号: 1549945
• 负责人: Kameshwar Poolla
• 金额: $ 29.36万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-15 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1549945&HistoricalAwards=false
• 关键词: EAGER; Renewables; Selling; Demand; Flexibility

The future electricity grid will have significant renewable generation. This generation is variable it is intermittent, unpredictable, and uncontrollable. Using conventional generation to back-up this variability defeats the emissions benefits of renewables and is very expensive. So the future grid must turn to demand flexibility which will play a critical role to mitigate renewable variability. Consumers will be transformed from passive recipients of power to active participants in providing services to balance supply and demand. This project seeks to explore business cases, market mechanisms, and pricing for various balancing services that demand flexibility can provide. These services include balancing supply and demand as the retail distribution level, and reducing congestion on lines at the wholesale transmission level. The broad agenda of this work is to support the deep penetration of renewable generation by developing and understanding the underlying economic research issues.The future will have geographic clusters of distributed loads, generation, and storage. A load serving entity (LSE) represents the cluster in transactions with the grid. The LSE buys bulk power from the transmission grid in one hour blocks. At finer time scales, most of the power balance can be arranged internally by modulating storage and flexible loads within the cluster. This reduces the reliance on expensive and dirty reserve generation. We explore appropriate market instruments such as options and forward contracts that support harnessing demand flexibility for balancing. These instruments allow for the lead-time to organize flexible loads, and account for the randomness in their availability.We will study equilibria and price discovery for these instruments under various market models. Excess flexibility or storage capacity from a cluster can also be sold to other clusters. Bilateral arrangements between clusters can be clumsy. A better alternative is for clusters to submit their available flexibility to the system operator (SO). The SO conducts multi-period economic dispatch to minimize the social (fuel) cost. It determines optimal generation schedules and demand flexibility set points. Our value proposition here is that storage and flexibility can reduce congestion in transmission networks. We will quantify the system benefit of demand flexibility in this context, and explore incentive schemes necessary for load participation, as well as the degree of coordination and control across buses necessary to realize these benefits.

未来的电网将有大量的可再生能源发电。这一代是可变的，它是间歇性的，不可预测的，不可控制的。使用传统发电来支持这种可变性会抵消可再生能源的排放效益，而且成本非常昂贵。因此，未来的电网必须转向需求灵活性，这将在缓解可再生能源变化方面发挥关键作用。消费者将从权力的被动接受者转变为提供服务的主动参与者，以平衡供需。该项目旨在探索业务案例，市场机制，以及需求灵活性可以提供的各种平衡服务的定价。这些服务包括在零售分销层面平衡供需，以及在批发传输层面减少线路拥堵。这项工作的广泛议程是通过开发和理解潜在的经济研究问题来支持可再生能源发电的深入渗透。未来将有分布式负载，发电和存储的地理集群。负载服务实体（LSE）表示与网格的事务中的集群。伦敦证交所以一小时为单位从输电网购买大量电力。在更精细的时间尺度上，大部分功率平衡可以通过调节集群内的存储和灵活负载来内部安排。这减少了对昂贵和肮脏的储备发电的依赖。我们探索合适的市场工具，如期权和远期合约，以支持利用需求灵活性实现平衡。这些工具允许提前期来组织灵活的负载，并说明其可用性的随机性。我们将研究这些工具在各种市场模型下的均衡和价格发现。一个群集的多余灵活性或存储容量也可以出售给其他群集。集群之间的双边安排可能很笨拙。一个更好的选择是集群向系统运营商（SO）提交其可用的灵活性。SO进行多时段经济调度，以最小化社会（燃料）成本。它确定最佳的发电计划和需求灵活性设定点。我们的价值主张是存储和灵活性可以减少传输网络中的拥塞。我们将在这种情况下，需求灵活性的系统效益进行量化，并探讨必要的激励计划，负载参与，以及协调和控制的程度，必要的巴士，以实现这些好处。