United Illuminating
United Illuminating is a electric only utility serving 340,000 customers in Connecticut. Average residential rate: 28.40¢/kWh (64.9% above national average).
28.40¢
per kWh
340,000
customers
CT
state
Electric Only
service type
Rate Comparison
| Metric | United Illuminating | Connecticut Avg | National Avg |
|---|---|---|---|
| Avg Rate | 28.40¢/kWh | 29.98¢/kWh | 17.22¢/kWh |
| Est. Monthly Bill (900 kWh) | $255.60 | $269.82 | $154.98 |
| Est. Annual Bill (900 kWh/mo) | $3,067.20 | $3,237.84 | $1,859.76 |
About United Illuminating
United Illuminating is one of the major electric utilities serving Connecticut. With 340,000 customers, it ranks among the smaller utilities in the state.
The utility's average rate of 28.40¢/kWh is 64.9% above the national average of 17.22¢/kWh.
Visit the official United Illuminating website for current rates, outage maps, and payment options.
Other Utilities in Connecticut
| Utility | Rate (¢/kWh) | Customers | Type |
|---|---|---|---|
| Eversource Energy | 29.98¢ | 1,300,000 | electric |
Explore More
Was this data helpful?
Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)