CARMEL, Ind. — On Thursday, September 1, MISO included Electric Storages Resources (ESRs) into its market portfolio for the first time. This new resource type has operational characteristics that support reliability and resilience as the industry continues to transition the resource fleet.
“We are excited to see this space grow with increasing member interest and participation, particularly as we continue to adapt to the accelerating resource transition,” said Jessica Lucas, MISO’s executive director – system operations. “With the introduction of Electric Storage Resources to our market portfolio, we will continue to position MISO’s grid and its members for the Grid of The Future.”
The Federal Energy Regulatory Commission (FERC) defines ESRs as “a resource capable of receiving electric energy from the grid and storing it for later injection of electricity back to the grid regardless of where the resource is located on the electrical system.” Examples of ESRs include batteries, pumped storage facilities and compressed air energy storage. MISO’s ESR implementation enables the resources to participate in MISO’s Energy and Operating Reserves Markets as supply and demand.
“The MISO team has demonstrated excellent collaboration with our stakeholders, and the pursuit of creative solutions resulted in MISO’s first secured Patent,” Lucas continues. “The development of the ESR participation model has been a key element of the Market Redefinition pillar of MISO’s Response to the Reliability Imperative in the resource models and capabilities area.”
ESRs are flexible resources that can help reduce peak demands, manage congestion and provide backup power for major disruptions because they can respond quickly and switch between injection (discharge) and withdrawal (charge) modes. The near-term benefits of the new ESR model are modest due to the small volume of storage resources. However, the new model positions MISO ahead of the increased storage participation anticipated with higher penetration of renewables and Distributed Energy Resources over the next five to 10 years.
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