Eversource and National Grid launched a pilot program to test vehicle-to-grid (V2G) technology with residential EV owners across Massachusetts. EnergyHub, Sunrun, and The Mobility House partnered on the initiative, which enables electric vehicle batteries to discharge power back to the grid during peak demand periods.
The program targets qualifying residential customers in both utilities' service territories. Participating EV drivers earn financial incentives by allowing their vehicles to supply stored energy to the grid when needed, reducing strain during high-demand hours and lowering electricity costs for all ratepayers.
V2G technology converts electric vehicles into mobile battery storage assets. When grid demand peaks or supply tightens, aggregators like EnergyHub coordinate distributed EV batteries to inject power back into the network. This differs from standard smart charging, which only manages when vehicles charge. The bidirectional flow creates a more resilient, flexible grid while generating revenue for EV owners.
Sunrun brings solar-plus-storage expertise, having managed distributed energy resources across millions of customers. The Mobility House operates V2G networks across Europe and Canada, providing proven technology for coordinating vehicle batteries. EnergyHub's software aggregates distributed energy resources and connects them to utility control systems. EverSource and National Grid contribute grid infrastructure and customer access.
Massachusetts has emerged as a V2G testing hub. The state's electricity prices and grid constraints make the economics work, while regulatory support from state utilities commissions has accelerated pilot approvals. Existing vehicle-to-grid programs in California and Hawaii demonstrate demand: Participants can earn $600 to $1,200 annually from stored power sales.
The pilot addresses two grid challenges simultaneously. As EV adoption accelerates, charging load threatens grid stability during evening hours when demand peaks. Simultaneously, renewable energy sources like solar and wind require storage to smooth output. V2