How Eversource compares with the utilities next door
| Utility | 2024 ¢/kWh | Customers | Δ vs Eversource, ¢/kWh | $/yr difference |
|---|---|---|---|---|
| Town of Wallingford | 15.65 | 21,405 | -12.86 | -$1,389 |
| Groton Dept of Utilities | 18.70 | 12,284 | -9.80 | -$1,059 |
| City of Norwich | 22.78 | 18,870 | -5.72 | -$618 |
| Eversource (Connecticut Light & Power) (this page) | 28.51 | 924,132 | — | — |
| United Illuminating Co | 34.04 | 256,302 | +5.54 | +$598 |
4 bundled utilities (≥5,000 customers) share at least one county with Eversource. Positive $/yr = that utility's customers pay more than Eversource customers at the same usage. Territories are fixed by address — these gaps measure cost differences between areas, while the supply portion is separately shoppable in Connecticut (see below).
Where Eversource customers pay more (county benchmark)
| County | Cheapest utility in county | Their ¢/kWh | Eversource premium, $/yr |
|---|---|---|---|
| Hartford | Town of Wallingford | 15.65 | +$1,389 |
| Litchfield | Town of Wallingford | 15.65 | +$1,389 |
| Middlesex | Town of Wallingford | 15.65 | +$1,389 |
| New Haven | Town of Wallingford | 15.65 | +$1,389 |
| Tolland | Town of Wallingford | 15.65 | +$1,389 |
| Windham | Town of Wallingford | 15.65 | +$1,389 |
| New London | Groton Dept of Utilities | 18.70 | +$1,059 |
Multiple utilities in one county means adjoining territories, not household choice — you cannot switch wires companies. In Connecticut you can shop the supply portion regardless of county.
Rate trend and size
| Metric | 2023 | 2024 | Change |
|---|---|---|---|
| Average price, ¢/kWh | 31.63 | 28.51 | -9.9% |
| Residential customers | 933,332 | 924,132 | -1.0% |
Ownership: Investor Owned. Including delivery-only/third-party-supply accounts, Eversource serves 1,174,420 residential customers in CT. Statewide context: Connecticut electricity rates.
Current residential tariff snapshot (URDB)
| Fixed charge | Energy rate, $/kWh | Effective |
|---|---|---|
| $9.62/mo | 0.186 | Jan 2026 |
Tariff structure (tiers, time-of-use, riders) determines your marginal rate; the EIA-861 average above reflects what customers actually paid all-in. Source: OpenEI URDB.
Supply vs delivery on a Eversource bill
Connecticut has residential electric supply choice: Eversource delivers the power and bills a default supply rate, but you may buy the supply portion from a licensed competitor instead. Compare offers against the price to compare on the state's official shopping site: energizect.com/rate-board.
Electric choice statewide (Eversource/UI; PURA Rate Board publishes supplier offers vs standard service). No residential gas choice.
Counties served (CT, EIA-861 2024)
Fairfield · Hartford · Litchfield · Middlesex · New Haven · New London · Tolland · Windham
Head-to-head comparisons
Questions people ask
- Is Eversource (Connecticut Light & Power) more expensive than other Connecticut utilities?
- Eversource (Connecticut Light & Power) customers paid an average 28.51 cents/kWh in 2024 — 1% below the Connecticut volume-weighted average of 28.66 cents (EIA-861, bundled residential service).
- Can I switch away from Eversource (Connecticut Light & Power)?
- You cannot switch the wires company — distribution territory is fixed by address. Connecticut does allow supply choice, so you can buy the supply portion of the bill from a licensed competitor via energizect.com/rate-board if its offer beats the price to compare.
- How many customers does Eversource (Connecticut Light & Power) have?
- 924,132 residential customers in Connecticut in 2024 across 8 counties, per its EIA-861 federal filing. Ownership type: investor-owned.