Each New Hampshireutility has a different cohort and pitch. Pick the customer's utility to open its rep guide.
Eversource Energy NH · largest NH IOU · ~520K customers · southern + central NH · ISO-NE
NEM 2.0 exports credit at ~75% of retail (17.321c vs 23.128c all-in). Self-consumption spread floor: 4.718c/kWh — the distribution haircut the battery captures. $19.81/mo customer charge (not avoidable). Default service 11.303c. NHCEF: $230/kWh max $3K upfront (Enphase + FranklinWH ONLY — NO Tesla, NO SolarEdge). No annual DR payments in NH. No VPP. Federal ITC expired 12/31/2025. No NH sales tax. Property tax exemption varies by municipality.
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Liberty Utilities NH · ~47K customers · central + northern NH · ISO-NE
NEM 2.0 exports credit at ~79% of retail (20.936c vs 26.640c all-in). Self-consumption spread floor: 4.958c/kWh. $14.74/mo customer charge. Default service 13.735c. NHCEF: $230/kWh max $3K upfront (Enphase + FranklinWH ONLY). Liberty Connected Rewards is THERMOSTATS ONLY — NOT a battery program. No VPP. Federal ITC expired 12/31/2025.
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Unitil Energy Systems · ~80K customers · Concord / Capital Region + southeastern NH · ISO-NE
NEM 2.0 export credit formula applies (PUC Order 26,029: 100% supply + 100% transmission + 25% distribution) but Unitil's specific component rates are UNCONFIRMED — no c/kWh spread figure quoted. $16.22/mo customer charge (confirmed). NHCEF: $230/kWh max $3K upfront (Enphase + FranklinWH ONLY). No VPP. Rates pending tariff extraction. Federal ITC expired 12/31/2025.
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NH Electric Cooperative (NHEC) · ~85K members · rural + northern NH · member-owned cooperative · ISO-NE
Member-owned cooperative. NEM terms UNCONFIRMED (co-op may have separate NEM rules from the PUC Order 26,029 IOU formula). All rates UNCONFIRMED — no c/kWh spread figure quoted. NHCEF: $230/kWh max $3K upfront (Enphase + FranklinWH ONLY). No VPP confirmed. Federal ITC expired 12/31/2025.
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