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SB 913

Resource adequacy: aggregated distributed energy resources.

2025-2026 Regular Session Introduced by Josh Becker and 6 co-sponsors

California bill redefines how distributed solar, batteries, and demand response resources count toward grid capacity adequacy requirements to improve renewable energy integration.

Read second time and amended. Re-referred to Com. on APPR.
#resourceadequacy #aggregateddistributedenergyresources
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Bill Summary · SB 913

Legislative bill overview

SB 913 addresses how California's electrical grid accounts for distributed capacity resources—such as rooftop solar, battery storage, and demand response systems—when calculating whether the state has sufficient generation capacity to meet electricity demand. The bill modifies resource adequacy requirements to better incorporate aggregated small-scale distributed resources into official capacity planning measures.

Why is this important

As California transitions to renewable energy, distributed resources represent an increasingly significant portion of available electricity supply. Properly accounting for these resources in resource adequacy calculations ensures grid reliability while accurately reflecting the state's true generation capacity, which affects energy pricing, infrastructure investment decisions, and the feasibility of climate goals.

Potential points of contention

  • Measurement accuracy: Determining reliable contribution levels from distributed resources during peak demand periods is technically complex; overestimating their contribution could create false confidence in grid reliability
  • Utility impact: Utilities may resist changes that reduce their traditional role in capacity planning or increase administrative requirements for tracking distributed resources
  • Equity concerns: Implementation methodology could affect whether rooftop solar and battery owners receive fair compensation, potentially creating winners and losers among different consumer segments

Compiled from official sources — confirm details with the bill’s official record.

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