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TOU Rate Structure

Solar ROI for Eversource Connecticut Customers

Eversource Connecticut charges an average of $28.5¢/kWh. Peak rates reach $38.0¢/kWh with off-peak at $18.0¢/kWh, creating strong battery arbitrage value. A 7 kW solar system produces a $26,348 NPV over 25 years.

$14,455
Net System Cost
$26,348
25-Year NPV
6 years
Payback Period
$0.177/kWh
Solar LCOE

Eversource Connecticut Rate Structure

ParameterRate
Average residential rate$28.5¢/kWh
Peak rate$38.0¢/kWh
Off-peak rate$18.0¢/kWh
Peak/off-peak spread$20.0¢/kWh
Rate structureTOU
Export credit policy1:1 net metering at retail rate

Solar System Economics

A 7 kW solar system for a Eversource Connecticut customer costs $20,650 before incentives. The 30% federal ITC saves $6,195. The net out-of-pocket cost is $14,455.

At Eversource Connecticut's $28.5¢/kWh average rate, the system saves $2,394 in year one, producing 8,400 kWh. The solar LCOE of $0.177/kWh is 38% below Eversource Connecticut's current rate.

Battery Storage for Eversource Connecticut Customers

$8,400
Battery Net Cost
$2
Daily Arbitrage
$665
Annual Arbitrage
-$1,555
25-Year Battery NPV

Eversource Connecticut's TOU spread generates $665/year in arbitrage value. The 25-year battery NPV of -$1,555 suggests batteries are marginal on economics alone. Backup power value and grid services programs may improve the case.

FAQ: Solar for Eversource Connecticut Customers

How much can Eversource Connecticut customers save with solar?
A typical 7 kW solar system saves Eversource Connecticut customers approximately $2,394/year in electricity costs. Over 25 years, the NPV of savings after system costs is $26,348.
What is Eversource Connecticut's rate structure?
Eversource Connecticut uses a time-of-use (TOU) rate structure with peak rates of $38.0¢/kWh and off-peak rates of $18.0¢/kWh. The $20.0¢/kWh peak/off-peak spread creates significant value for battery storage — TOU arbitrage alone is worth $665/year.
Does Eversource Connecticut offer net metering?
1:1 net metering at retail rate
Should Eversource Connecticut customers add battery storage?
Battery storage for Eversource Connecticut customers has a 25-year NPV of -$1,555. The economics are marginal based on TOU savings alone, but backup power value and future grid services programs may change the equation.

Other Utilities in Connecticut

United Illuminating (UI)
$26.8¢/kWh · TOU
›

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