Four utilities, one state. Picking the right one matters more here.
New Hampshire is a four-utility patchwork: Eversource is the largest, Liberty and Unitil cover smaller territories, and NHEC is the only member-owned cooperative in the mix. State-side rebates run jointly through NHSaves, so the heat pump and weatherization stack is the same no matter who serves your house. The differences show up on the rate side, on the storage side, and in the Liberty Powerwall pilot, which is the only program of its kind in New England. Here's what each utility offers, in 2026.
Liberty Utilities runs a battery leasing pilot that gives you up to two Tesla Powerwalls, even without solar.
Most utility battery programs in New England are demand-response only: you bring your own battery, the utility pays you to dispatch it. Liberty's NH pilot inverts the model. The utility provides up to two Tesla Powerwalls under a leasing arrangement; pilot participants saved roughly 33% on monthly bill. It's the only program of its kind in New Hampshire, available to Liberty residential customers even without solar. Eversource NH runs a separate $230/kWh upfront ConnectedSolutions program (capped at $3,000 per residential account) for customer-owned batteries. Unitil and NHEC do not yet have a directly comparable storage offering.
