Unitil NH solar export rate
What Unitil NH pays for power exported from rooftop solar in New Hampshire, with the source and the date it was checked.
No single rate — formula based
Small customer-generators: Default Service, the Transmission portion of the External Delivery Charge, and twenty-five percent (25%) of the Distribution rate; no credit for specified non-bypassable charges. Large customer-generators receive a monetary bill credit at the Default Service rate.
Unitil NH · New Hampshire
The dollar credit varies with Unitil's approved rate components; competitive suppliers may set supply-credit terms.
Source: unitil.com
Full Unitil NH detail →New Hampshire rules that apply to Unitil NH
The state framework sets the default. Where Unitil NH pays something different, the utility tariff governs and is what the card above reports.
| Compensation mechanism | Utility net energy metering with monthly measurement and monetary bill credits under the alternative tariff for post-August 2017 projects; small-system exports receive credit for default energy service, transmission, and 25% of distribution, while certain non-bypassable charges receive no credit. |
|---|---|
| Export rate | There is no single statewide dollar-per-kWh rate: for small customer-generators, the alternative tariff credits 100% of Default Energy Service, 100% of Transmission, and 25% of Distribution; the dollar value changes with each utility's rates. Large systems receive credit for Default Energy Service only. |
| Rate effective | The alternative net-metering tariff applies beginning September 1, 2017; the reviewed Liberty tariff page is effective May 1, 2025. |
| Credit rollover | Yes. Small and large customer-generators receive monetary credits over subsequent billing periods and do not accumulate surplus kWh after each billing period. |
| Credit expiration | Credits do not have a stated annual expiration in the reviewed tariff; they continue over subsequent billing periods, with cash payment available after the March 31 balance date when the monetary credit exceeds $100, or for any balance when service ends or the customer moves. |
| Annual true-up | March 31 is the annual cash-out balance date; customers with a monetary credit balance exceeding $100 as of March 31 may request payment. |
| Aggregate program cap | The Puc 900 utility-specific capacity allocations are Granite State Electric/Liberty 4.12 MW, New Hampshire Electric Cooperative 3.16 MW, Public Service Company of New Hampshire/Eversource 36.55 MW, and Unitil 6.17 MW; no more than 2 MW statewide may be combined heat and power. |
| Program status | Open only within each utility's remaining allocation and on a first-come, first-served basis; the reviewed rules do not establish that every utility currently has unused capacity. |
| Grandfathering | Yes. Customer-generators with a net-metering capacity allocation on or after September 1, 2017 are entitled to the alternative tariff through December 31, 2040; the tariff also preserves applicable terms after qualifying ownership transfers. |
| Regulator | The New Hampshire Public Utilities Commission regulates the investor-owned distribution utilities' net-metering tariffs under Puc 900 and RSA 362-A:9; NHEC's member-elected board sets its tariff. |
| Governing rule | RSA 362-A:9 and New Hampshire Code of Administrative Rules Puc 900, including Puc 903.02 for net-metering measurement, credits, and capacity allocations. |
| Pending change | Liberty's DE 26-035 is a pending adjudicative proceeding on a proposed Net Metering Credit Adjustment Mechanism to change how Liberty recovers NEM credits; the filing states the proceeding was commenced and a hearing was set for October 15, 2026. |
Other New Hampshire utilities
- Eversource NHFormula basedSmall customer-generators: each kWh of Net Sales earns a monetary bill credit equal to the sum
- Liberty Utilities NHFormula basedFor installations of 100 kW AC or less: Default Energy Service, Transmission, and twenty-five p
- NHEC (New Hampshire Electric Co-op)Formula basedNHEC compensates members for surplus generation exported to the Co-op's distribution system und