Search Climate Insights Directory

This report evaluates the operational feasibility and reliability of California achieving an accelerated interim target of 85% clean electricity by 2030. Using production cost modeling (PLEXOS) and capacity expansion modeling (RESOLVE), the study stress-tests three resource portfolios—Base Case, Diverse Clean Resources, and High Electrification—against various stressors including extreme weather, gas and coal retirements, and import constraints. The findings indicate that an 85% clean target is reliably achievable, provided there is sufficient battery storage and a strategic retention of some natural gas capacity or access to regional imports.

This fact sheet summarizes a study by Energy Innovation on the reliability of accelerated clean electricity portfolios in California, specifically testing an 85% clean electricity target for 2030. Using a production cost model (PLEXOS) to stress-test three portfolios against variables such as low hydro, reduced gas availability, and limited imports, the study concludes that reaching this target is feasible and reliable across most weather years and stress conditions.