Move Over, Tesla Wall. The Cybertruck Has Arrived.

PG&E and Tesla win California's first AC V2G approval, opening a cheaper, simpler path for EVs to power homes and the grid

7 May 2026

California's energy regulator has cleared an alternating-current vehicle-to-grid system for residential use for the first time, following a joint submission by PG&E and Tesla covering the Cybertruck and its Powershare Gateway hardware. The approval, granted on 20 April 2026, marks a shift in how electric vehicles may contribute power back to the grid.

Every prior authorisation under PG&E's Vehicle-to-Everything pilot had involved direct-current bidirectional chargers, specialist equipment carrying hardware costs of between $6,000 and $10,000 before installation. The Tesla system routes power through the vehicle's onboard inverter and standard home electrical fittings, avoiding the need for that dedicated hardware entirely. PG&E opened the AC pathway using an existing certification framework for distributed energy resources under California's utility interconnection rules, known as Rule 21.

The regulatory clearance applies to PG&E's service territory, which covers more than 16 million people across Northern and Central California. Eligible Cybertruck owners may enrol to provide home backup during outages and to export power through PG&E's Emergency Load Reduction Programme, with owners able to set their own discharge limits. Incentives of up to $4,500 are available to cover equipment and installation costs, alongside payments for qualifying grid export events.

At 123 kWh, the Cybertruck holds roughly nine times the storage of a standard home battery, a capacity that carries weight during California's summer demand peaks, when solar output falls and cooling loads press the grid hard.

Moreover, the pilot is capped at 1,000 residential enrolments, and the Cybertruck is Tesla's lowest-selling model. Whether the AC pathway extends to higher-volume platforms, and whether other state utilities follow PG&E's lead, will determine how far the precedent reaches. Several other US states are monitoring California's approach as they develop their own interconnection policies.