May 19, 2020

Status of Hybrid Resource Initiatives in U.S. Organized Wholesale Markets

For the past year, developers and others around the country have had growing interest in hybrid resources involving battery storage coupled with power generation, particularly non-dispatchable solar and wind power. The significant increase in the number of hybrid resources appearing in interconnection queues is evidence of this trend. According to one recent study, 4.6 GW of hybrid resource capacity is online today, 14.7 GW of hybrid resources are in the immediate development pipeline, and 69 GW of hybrid resources are in select interconnection queues.

Regional Transmission Organizations (RTOs) and Independent System Operators (ISOs) have taken notice of this, and have begun to devote more time and attention to this topic. To date, all seven RTOs and ISOs are discussing hybrid resources with stakeholders in an effort to pave the way for greater participation opportunities for these resources, with five markets actively undertaking new rules development. The scope and pace of these discussions vary greatly across different regions.

Updated May 19, 2020.

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