City of Norwich - (CT)
Municipal electric utility · Connecticut · #708 of 3,199 U.S. utilities by customers · EIA utility #13831
City of Norwich - (CT) is a municipal electric utility serving 20,996 customers in Connecticut. In 2025 it sold 287 gigawatt-hours of electricity for $63.10M in revenue, an average realized rate of 21.97¢ per kWh across all customer classes and 23.35¢ per kWh for residential customers. Its reported service territory covers 1 counties. EIA records its activities as: generation, transmission, distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 18,967 | 144 | $33.63M | 23.35¢ | |
| Commercial | 2,015 | 130 | $26.95M | 20.80¢ | |
| Industrial | 14 | 13.6 | $2.52M | 18.54¢ | |
| Total | 20,996 | 287 | $63.10M | 21.97¢ |
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 (633 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 20,641 | 276 | $50.69M | 20.06¢ |
| 2022 | 20,747 | 278 | $58.65M | 22.81¢ |
| 2023 | 20,808 | 276 | $65.61M | 25.45¢ |
| 2024 | 20,898 | 280 | $60.00M | 22.78¢ |
| 2025 | 20,996 | 287 | $63.10M | 23.35¢ |
Reliability (2025)
Average outage time (SAIDI): 169 minutes per customer per year
Average outages (SAIFI): 1.48 per customer
Average restoration time (CAIDI): 114 minutes
As reported for Connecticut 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: 4.4 GWh
Wholesale power purchased: 298 GWh
Winter peak demand: 50 MW
Energy losses: 5.0% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 98.3% of 20,996 meters
Customer-sited generation (net metering): 82 installations, 1.9 MW of capacity
Counties served
New London, CT
Other large utilities in Connecticut
- Connecticut Light & Power Co - 1,072,114 customers, residential 28.88¢
- United Illuminating Co - 277,914 customers, residential 35.40¢
- Think Energy, LLC - 90,425 customers, residential 11.78¢
- Town Square Energy - 85,979 customers, residential 13.09¢
- Town of Wallingford - (CT) - 25,123 customers, residential 17.78¢
- Groton Dept of Utilities - (CT) - 14,193 customers, residential 18.05¢
- XOOM Energy Connecticut, LLC - 10,627 customers, residential 13.09¢
- City of South Norwalk - (CT) - 7,439 customers, residential —
All Connecticut utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #13831 in the EIA frame.