California Gov. Gavin Newsom on Friday signed into law Senate Bill (SB) 423 to accelerate the deployment of “firm zero-carbon resources” for electricity production.

The bill was one of 24 signed Friday alongside a $15 billion spending package focused on climate and clean energy efforts, as well as wildfire and drought resiliency.

SB 423 defines firm zero-carbon resources as “electrical resources that can individually, or in combination, deliver electricity with high availability for the expected duration of multiday extreme or atypical weather events and facilitate integration of eligible renewable energy resources into the electrical grid and the transition to a zero-carbon electrical grid.”

The bill requires the California Energy Commission (CEC) to submit to the...