CA AB1550

Requires all hydrogen produced or used in California for electricity generation or vehicle fueling to be renewable hydrogen (nonbiological or biological origin) by January 1, 2045, supporting the state's net zero emissions goal.

Defines "renewable hydrogen of nonbiological origin" as hydrogen produced through electrolysis using renewable electricity (solar, wind, geothermal, etc.) from water, with restrictions on renewable energy credits and requirements for same-hour electricity use starting January 1, 2028.

Defines "renewable hydrogen of biological origin" as hydrogen from water or biomass using renewable energy, excluding dairy digester biomethane and purpose-grown crops, with prohibitions on resource shuffling and unbundled renewable energy credits.

Requires the State Energy Resources Conservation and Development Commission to develop interim targets and establish a tracking system for renewable hydrogen, and mandates that renewable hydrogen used for electricity generation meet Energy Commission requirements to qualify as an eligible renewable energy resource.

Prohibits renewable hydrogen from qualifying under California's Renewables Portfolio Standard unless sufficient renewable and environmental attributes are transferred to ensure zero net emissions associated with electricity production.