Public Service Co of NH
Investor Owned electric utility · New Hampshire · #122 of 3,199 U.S. utilities by customers · EIA utility #15472
Public Service Co of NH is a investor owned electric utility serving 299,998 customers in New Hampshire. In 2025 it sold 2,568 gigawatt-hours of electricity for $592.35M in revenue, an average realized rate of 23.06¢ per kWh across all customer classes and 24.17¢ per kWh for residential customers. Its reported service territory covers 10 counties. EIA records its activities as: transmission, buying transmission, distribution, wholesale marketing, retail marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 263,458 | 1,960 | $473.66M | 24.17¢ | |
| Commercial | 35,556 | 544 | $108.21M | 19.88¢ | |
| Industrial | 984 | 64.2 | $10.47M | 16.30¢ | |
| Total | 299,998 | 2,568 | $592.35M | 23.06¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (620 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 430,056 | 3,739 | $692.65M | 19.51¢ |
| 2022 | 435,836 | 3,817 | $959.78M | 25.98¢ |
| 2023 | 376,359 | 2,966 | $849.03M | 28.93¢ |
| 2024 | 318,309 | 2,582 | $568.17M | 22.65¢ |
| 2025 | 299,998 | 2,568 | $592.35M | 24.17¢ |
Reliability (2025)
Average outage time (SAIDI): 160 minutes per customer per year
Average outages (SAIFI): 1.09 per customer
Average restoration time (CAIDI): 147 minutes
As reported for New Hampshire under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 3,086 GWh
Winter peak demand: 1,328 MW
Energy losses: 8.5% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 580,301 meters
Customer-sited generation (net metering): 19,761 installations, 268.3 MW of capacity
This utility also reported 246,817 delivery-only customers (5,338 GWh delivered) in 2025. Delivery figures are excluded from the totals above because the same electricity is also reported by the energy supplier - see Methodology.
Counties served
Belknap, NHCarroll, NHCheshire, NHCoos, NHGrafton, NHHillsborough, NHMerrimack, NHRockingham, NHStrafford, NHSullivan, NH
Other large utilities in New Hampshire
- Community Power Coalition of NH - 204,201 customers, residential 10.56¢
- New Hampshire Elec Coop Inc - 79,113 customers, residential 24.70¢
- North American Power and Gas, LLC - 31,395 customers, residential 15.84¢
- Unitil Energy Systems - 28,173 customers, residential 21.72¢
- Liberty Utilities (Granite State Electri - 26,588 customers, residential 22.59¢
- Electricity NH, LLC - 14,183 customers, residential 14.84¢
- Town of Wolfeboro - (NH) - 6,031 customers, residential —
- Town of Littleton - (NH) - 4,064 customers, residential —
All New Hampshire utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #15472 in the EIA frame.