Connecticut Light & Power Co. electricity rates
Investor-owned utility · Connecticut · NPCC region · ISONE
Connecticut Light & Power Co. is a for-profit, investor-owned utility regulated by the state utility commission, serving 995,130 homes in Connecticut. Its residential customers pay an average of 27.53¢/kWh including fixed and delivery charges, 53% more than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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Connecticut Light & Power Co. bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $137.65 | $155.68 |
| 1,000 kWh | $275.30 | $301.75 |
| 1,500 kWh | $412.95 | $447.81 |
| 2,000 kWh | $550.60 | $593.88 |
*Rate 1 - Residential Electric Service (effective 2026-01-01, $9.62/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Connecticut Light & Power Co. residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Rate 1 - Residential Electric Service | 2026-01-01 | $9.62 | 29.21¢ |
| Rate 7 - Residential Time-Of-Day Electric Servicetime-of-use | 2026-01-01 | $9.62 | 24.8¢ (12am–12pm, 8pm–12am) · 39.8¢ (12pm–8pm) — summer weekdays |
| Rate 7 - Residential Time-Of-Day Electric Servicetime-of-use | 2026-01-01 | $9.62 | 12.8¢ (12am–12pm, 8pm–12am) · 24.3¢ (12pm–8pm) — summer weekdays |
| Rate 1 - Residential Electric Service | 2026-01-01 | $9.62 | 16.27¢ |
| Rate 18- Controlled Water Heating Electric Service | 2026-01-01 | $11.00 | 22.38¢ |
| Rate 18- Controlled Water Heating Electric Service | 2026-01-01 | $11.00 | 10.31¢ |
| Rate 5 - Residential Electric Heating Service | 2026-01-01 | $23.75 | 26.72¢ |
| Rate 5 - Residential Electric Heating Service | 2026-01-01 | $23.75 | 13.78¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Connecticut Light & Power Co. rate history
2015–2025: +44% change in the average residential rate (20.02¢ → 28.88¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Connecticut Light & Power Co. | Connecticut avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 217 | 184 | 266 |
| Outages per customer (SAIFI) | 1.00 | 0.93 | 1.34 |
| Average restoration time (CAIDI) | 3 hr 36 min | — | — |
| Outage minutes excluding major storms | 85 | 77 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Connecticut Light & Power Co.'s counties, customers averaged 64 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Litchfield | 195 | 27 | 16,582 | 2025-03-24 |
| Windham | 191 | 19 | 7,499 | 2025-03-07 |
| Fairfield | 81 | 12 | 9,412 | 2025-02-17 |
| Middlesex | 76 | 24 | 5,044 | 2025-05-20 |
| New London | 69 | 33 | 3,124 | 2025-04-28 |
| Tolland | 58 | 13 | 4,633 | 2025-03-07 |
| New Haven | 52 | 10 | 12,796 | 2025-02-16 |
| Hartford | 25 | 3 | 9,853 | 2025-02-16 |
Connecticut Light & Power Co. service area
Connecticut Light & Power Co. serves 8 counties in Connecticut and 378 ZIP codes.
Fairfield, Hartford, Litchfield, Middlesex, New Haven, New London, Tolland, Windham
Cities: New Haven, Stamford, North Stamford, Hartford, Waterbury, Norwalk, Danbury, East Norwalk, New Britain, West Hartford, Bristol, Meriden, Hamden, Fairfield, East Hartford, Middletown, Enfield, Southington, Shelton, Norwich, Trumbull, West Torrington, Torrington, Glastonbury, Naugatuck, Manchester, Newington, Cheshire, Branford, East Haven, Windsor, New London, Wethersfield, Mansfield City, Westport, Farmington, South Windsor, Windham, Guilford, Bloomfield
Programs, smart meters & solar
| Smart meters (AMI) for homes | 0% |
| Customers with daily usage data online | 1 |
| Time-based rate programs | Time-of-use rates, Variable peak pricing |
| Homes on time-based rates | 611 |
| Net-metered solar homes | 90,943 |
| Homes in demand response (e.g. thermostat rebates) | 30,293 |
| Residential efficiency incentives paid (2025) | $42,819,253 |
| Residential energy saved by programs | 19,445 MWh |
Connecticut Light & Power Co. at a glance
| Ownership | Investor-owned utility |
| Services | Transmission, Distribution, Wholesale Marketing, Retail Marketing |
| Commercial rate | 21.84¢/kWh |
| Industrial rate | 14.87¢/kWh |
| Retail revenue (2025) | $2,806,042,900 |
| Electricity sold (2025) | 10,207,753 MWh |
| Peak demand | 4,967 MW summer · 3,607 MW winter |
| Line losses | 1.1% |
| Balancing authority | ISNE |
| EIA utility ID | 4176 |
| Website | www.ctenergydashboard.com |
Other utilities in Connecticut
Frequently asked questions
What is Connecticut Light & Power Co.'s electricity rate?
Connecticut Light & Power Co. residential customers pay an average of 27.53¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 2% below the Connecticut average of 27.99¢ and 53% above the U.S. average.
What is the average Connecticut Light & Power Co. electric bill?
About $186 a month. The average Connecticut Light & Power Co. home uses 677 kWh a month. At 1,000 kWh the bill would be about $275.
How many customers does Connecticut Light & Power Co. have?
Connecticut Light & Power Co. serves 995,130 residential customers and 1,309,946 customers in total in Connecticut, across 8 counties.
How reliable is Connecticut Light & Power Co.?
In 2025, the average Connecticut Light & Power Co. customer was without power for 3 hr 37 min (SAIDI) over 1.00 interruptions (SAIFI), including major storms. Excluding major event days it was 85 min. The Connecticut average was 3 hr 4 min and the U.S. average 4 hr 26 min.
Does Connecticut Light & Power Co. offer time-of-use rates?
Yes. The OpenEI rate database lists 2 time-of-use residential plans, including Rate 7 - Residential Time-Of-Day Electric Service. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Connecticut Light & Power Co. offer net metering for solar?
Connecticut Light & Power Co. had 90,943 residential net-metered customers in 2025 with 750.2 MW of capacity. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Connecticut Light & Power Co. before making decisions.