Massachusetts is extending its ConnectedSolutions residential battery virtual power plant (VPP) program to vehicle-to-grid (V2G) connections, according to ESS News. The state already has more than 150,000 electric vehicles on the road, ESS News reported.
The existing battery scheme paid out more than USD 5.4 million to 5,251 residential participants for the 2025 season. Those payments bought measurable grid relief: batteries enrolled in ConnectedSolutions delivered roughly 40 MW of net summer capacity savings during the 2025 season, split between 28.9 MW from residential systems and almost 11 MW from commercial units, per ESS News.
Program administrators are aiming considerably higher. Their 2025-2027 plan targets roughly 125 MW of battery performance capacity, comprising 93 MW residential and 31.5 MW commercial. Reaching that residential figure would require more than triple the 28.9 MW logged last season.
A spokesperson for the program told EV website electrek.co that initially eligible vehicles include the Ford F-150 Lightning, Nissan Leaf, Kia EV9, Polestar 3, and Volvo EX90. The Mobility House, EnergyHub, and Sunrun are participating, with EnergyHub's Edge DERMS platform managing dispatch for the pilot.
The wider ConnectedSolutions footprint gives some sense of what aggregated household assets can do under stress. During a June 2024 heat wave, utilities reported that the region-wide VPP cut peak demand on the New England power grid by more than 375 MW, according to ESS News.
Adding bidirectional vehicles changes the arithmetic of the residential target. Passenger EV packs are larger than typical home batteries, and the eligible list names five models rather than a single platform, meaning enrollment growth depends on how many owners of those vehicles pair them with compatible bidirectional charging hardware. The Mobility House and Sunrun bring vehicle-side and residential-solar customer bases into the same dispatch stack that EnergyHub controls.
Commercial batteries remain the smaller share of both the delivered result and the plan, at almost 11 MW achieved against a 31.5 MW target. Residential assets, now including cars, carry the bulk of the capacity ambition.