WA SB5982

Expands the definition of "consumer-owned utility" to include port districts formed under Title 53 RCW that distribute electricity to at least one retail customer in Washington state

Excludes public utility districts with only one retail electric customer from the consumer-owned utility definition, provided the customer remains unchanged from January 1, 2026, and the district receives 100% of electricity from the Bonneville Power Administration

Broadens the definition of "market customer" to include nonresidential electricity consumers who purchase from non-utility entities or generate electricity for their own or their lessee's consumption

Requires the Department of Commerce to establish reporting requirements for port districts, with authority to waive requirements not pertaining to their retail electric customers, with reporting beginning July 1, 2030

Grants the Utilities and Transportation Commission authority to enforce compliance with clean energy requirements for affected market customers, either on its own motion or upon request