California Is About to Let Homeowners Rent Out the Tesla Powerwall in Their Garage to the Grid. The Average Household Could Earn Up to $1,500 a Year

California adds roughly 8,000 new home backup batteries to its grid every single month. According to data from the California Public Utilities Commission, cited by State Senator Josh Becker (D) when he introduced Senate Bill 913 on March 24, that adds up to around 100 megawatts of new storage capacity walking onto the grid every single month, paid for entirely by homeowners. None of that capacity is currently allowed to compete with gas peaker plants when California’s grid operator goes shopping for power on a hot August afternoon. Becker’s bill, which passed the Senate Energy Committee on April 7 and is now sitting in Senate Appropriations, would change that.

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