The bill creates a new statewide residential battery incentive grant program administered by the Department of Commerce, adding new sections to chapter 43.31 RCW and a new section to chapter 82.04 RCW. The program authorizes the department, subject to available appropriations, to award grants to electric utilities that operate approved residential battery incentive programs and connected flexible demand programs. The law sets program design and application requirements for utilities, including upfront incentive payments to qualified residential customers, plans to incorporate batteries and other distributed energy resources into flexible demand programs, restrictions on third-party ownership of incentivized systems (with limited utility-owned lease or rent-to-own exceptions), customer income verification and reporting, limits on utility administrative expenses, and rules allowing pro rata repayment if customers opt out early. Utilities with more than 100,000 retail customers must implement a compliant flexible demand program by December 31, 2026; other utilities may opt in. The bill establishes financial and eligibility limits: incentive payments are available only for systems placed in service between July 1, 2026, and June 30, 2036; per-customer caps are up to $13,800 for lowand moderate-income customers and up to $8,100 for other customers (subject to department adjustment and possible utility-requested modifications); at least 40% of program funding must be reserved for low-income, moderate-income, or tribal households; no more than 35% of biennial funding may go to a single utility and no more than 50% to investor-owned utilities (with an exception for final funding rounds in a biennium); utilities must reapply each biennium and submit quarterly reports with specified data. The act also adds a provision to chapter 82.04 RCW stating that that chapter does not apply to receipt of these grants by utilities and that RCW 82.32.805 and 82.32.808 do not apply to that subsection. This is a new statutory program and administrative procedure, not a criminal or penalty change. Several details are missing from the provided text: the total appropriation amounts or funding source, the complete text of the new section added to chapter 82.04 RCW beyond the exemption language summarized, and portions of section text that were omitted in the extracts (including some definitions and any additional program mechanics that appear elsewhere in the bill).

If enacted, the state would fund electric utilities to give large upfront rebates for home battery systems if customers join utility “flexible demand” programs that let utilities shift or manage stored energy. Lowand moderate-income and tribal households would be prioritized (at least 40% of funds), with possible incentives up to $13,800 for those households and up to $8,100 for others for systems placed in service between July 1, 2026, and June 30, 2036; customers who take the upfront payment but later leave the program can face pro rata repayment. Utilities with more than 100,000 customers must create such demand programs by the end of 2026, all participating utilities must reapply each biennium, meet reporting and income-verification duties, limit administrative upgrades to 20% of grant funds, and comply with caps on how much funding a single utility or investor-owned utilities can receive. The practical winners are utilities that can win grants and deploy subsidized batteries, but they take on new program design, income verification, quarterly reporting, and potential refund collection responsibilities and costs; investor-owned utilities face a 50% biennial cap and all utilities face a 35% cap per utility per biennium (with some exceptions for final funding rounds). Residential customers who want the rebate must join utility flexibility programs and cannot accept third-party-owned leased systems except certain utility-owned arrangements; the text omits key details such as total appropriated funding amounts and the full tax or statutory treatment referenced in the new chapter 82.04 section, so the scale of funding and some fiscal/tax implications remain unclear.