States › Connecticut › September 2025
Connecticut electricity prices, September 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In September 2025, residential customers in Connecticut paid an average of 30.48¢ per kilowatthour, down 7.7% on the same month a year earlier (33.04¢). The US average for the month was 18.08¢; Connecticut was 69% above that. It ranked 3rd highest among the 50 states and the District of Columbia.
Residential sales were 909,119 MWh, up 2.7% on a year earlier, and the average residential bill for the month was $173.77 on 570 kWh. Weather moves monthly sales far more than prices do, so bills swing with the season.
EIA marks this month as preliminary. Preliminary months come from the Form EIA-861M sample and are revised when the annual census is complete.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Monthly figures come from the Form EIA-861M sample and are revised when EIA finalises the year.
Price by sector
| Sector | Sep 2025 | Sep 2024 | Change | US, Sep 2025 |
|---|---|---|---|---|
| Residential | 30.48¢ | 33.04¢ | -7.7% | 18.08¢ |
| Commercial | 21.94¢ | 23.38¢ | -6.2% | 13.99¢ |
| Industrial | 17.99¢ | 19.56¢ | -8.0% | 9.02¢ |
| All sectors | 25.19¢ | 27.01¢ | -6.7% | 14.21¢ |
Sales and customers
| Measure | Sep 2025 | Sep 2024 | Change |
|---|---|---|---|
| Residential sales | 909.1 GWh | 885.2 GWh | +2.7% |
| Sales, all sectors | 2.1 TWh | 2.1 TWh | +0.1% |
| Residential customers | 1,594,805 | 1,556,385 | +2.5% |
| Average residential bill | $173.77 | $187.93 | -7.5% |
| Average residential use, kWh | 570 | 569 | +0.2% |
| US residential price | 18.08¢ | 16.82¢ | +7.5% |
The two years to September 2025
Connecticut residentialUS residential
Questions and answers
What was the average electricity price in Connecticut in September 2025?
30.48¢ per kilowatthour for residential customers, 21.94¢ for commercial and 17.99¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 33.04¢ in September 2024, a change of -7.7%. Residential sales changed by +2.7% over the same period.
What was the average residential bill that month?
$173.77, on average use of 570 kWh. This is residential revenue divided by residential customers for the month.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861M sales and revenue workbook (state by sector and month), status "Preliminary" for this month, series published through July 2026. Public domain. Price = revenue ÷ sales; bill = residential revenue ÷ residential customers. Utility-level annual figures are on the Connecticut page.