Unitil Energy Systems Rates, Bills and Service Area in 2025

Unitil Energy Systems reported 24,452 residential customers on bundled service in 2025, using 601 kWh a month on average at 21.72 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 4 New Hampshire utilities with at least 10,000 bundled residential customers, Unitil Energy Systems ranks 1 from the lowest price.

Another 44,629 residential customers use Unitil Energy Systems for delivery only and buy their energy from a different supplier. EIA reports their delivery revenue at about 11.48 cents per kWh, or $73.17 a month, which does not include the supply price.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.

EIA lists the counties where Unitil Energy Systems has distribution equipment. That covers 2 counties in New Hampshire. A county can be served by more than one utility, so confirm your address with the utility or your bill.

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For 2025, Unitil Energy Systems reported an average of 91 minutes without power per customer and 0.99 interruptions per customer, with major event days left out. The typical interruption lasted about 92 minutes. For comparison, the median state averaged 127 minutes of outage per customer.

Unitil Energy Systems had about 36 fewer minutes of outage per customer than the median state. The New Hampshire figure across its utilities was 86 minutes. One interruption lasting 92 minutes and 0.99 interruptions a year per customer add up to the 91 minute total.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), reliability schedule, measured under IEEE 1366. Utilities define events slightly differently, so compare with care.

• Time-of-use pricing. Unitil Energy Systems reports a residential time-of-use pricing program in its 2025 EIA filing, with about 61 residential customers enrolled in dynamic pricing programs of all kinds. Ask the utility which rate schedules you qualify for. How time-of-use rates work.
• Rooftop solar and net metering. EIA shows 2,574 residential net-metered systems on the Unitil Energy Systems grid in 2025, with 20.9 megawatts of capacity. How net metering works.

A private company owned by shareholders. A state commission reviews its costs and sets or approves its rates in formal rate cases. In New Hampshire, that review is done by the New Hampshire Public Utilities Commission.

Unitil Energy Systems is an investor-owned utility based in New Hampshire.

Unitil Energy Systems operates in the ISONE power market. Power markets set wholesale costs, but your retail rate is set by the rules described above.

By residential customers, Unitil Energy Systems ranks 3rd of the 4 utilities that report homes in New Hampshire, with about 10.5% of the state's homes. New Hampshire has too few other investor-owned utilities with reported prices to compare Unitil Energy Systems with its type, so the state average of 24.53 cents per kWh is the fairest yardstick. At $130.56 a month, an average Unitil Energy Systems home pays about $317 a year less than the New Hampshire average of $156.94, and uses 39 kWh a month less. Unitil Energy Systems lists distribution equipment in 2 counties, so check your county and your bill before you assume it serves you. 2,574 of its residential customers use net metering, or 37.3 per 1,000 homes, against 40.3 for New Hampshire as a whole.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in New Hampshire with at least 1,000 residential customers and a reported price.

See every one on the electric companies in New Hampshire page.

Kilowatt Atlas is not Unitil Energy Systems and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.

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