Connecticut Has the 3rd Most Expensive Electricity in America
8.34¢/kWh
Average all-in electricity rate — nearly 4× the national average
Connecticut Electricity Rates: The Full Picture
Connecticut homeowners pay some of the highest electricity rates in the United States — and they're going up. Eversource has filed for an 18% rate increase, with a PURA decision expected in spring 2027.
| Rate Component | Amount | Notes |
|---|
| CT Average All-In Rate | 8.34¢/kWh | 3rd most expensive in the US |
| National Average | ~8.3¢/kWh | 4× lower than CT |
| Eversource Supply (Aug 2026) | 11.57¢–11.94¢/kWh | Standard service offer |
| United Illuminating Supply (Aug 2026) | 11.95¢–8.795¢/kWh | Standard service offer |
| Eversource Delivery Charges | ~15–20¢/kWh additional | Delivery, transmission, distribution |
What this means for your family: A typical Connecticut home using 800 kWh/month pays approximately $258/month on electricity. That's over $3,000 per year — and climbing.
Solar vs. Standard Utility Rates
Every month without solar is another month paying whatever Eversource and UI decide to charge.
Without Solar
8.34¢/kWh
CT avg. electricity rate (all-in)
Rates go up every time Eversource files for an increase
With Solar — RRES Lock-In
8.795¢/kWh
Locked for 20 years via CT RRES Buy-All Tariff
Rate locked the day your system goes live — guaranteed
The RRES Buy-All Tariff: Connecticut's Residential Renewable Energy Solutions program pays you $0.3289/kWh for every kilowatt-hour your solar system produces — locked for 20 years. Eversource and United Illuminating administer it directly. You don't export math, you don't guess. You lock a rate.
How Connecticut Compares Nationally
Connecticut consistently ranks among the most expensive electricity markets in the United States. This is driven by aging grid infrastructure, limited in-state fuel production, and the costs of transitioning to renewable energy.
Key comparison: If the average American pays ~$100/month on electricity, the average Connecticut homeowner pays approximately $258/month — a $158/month premium simply for living in Connecticut. Solar eliminates that premium over time.
The gap between CT electricity costs and the rest of the country has never been wider. That gap is exactly why solar makes more financial sense in Connecticut than in almost any other state.
Connecticut Solar Programs — What Actually Pays
Even without the expired federal tax credit, Connecticut has robust state programs that make going solar financially viable:
RRES Buy-All Tariff — $0.3289/kWh for 20 years
RRES Capacity Incentive — $426/kW installed
Smart-E Loans — CT Green Bank financing
No Sales Tax on solar equipment (6.35% waived)
Property Tax Exemption — $0 added to tax bill (HB05442)
Programs locked through 2035 (HB5340)
25-Year Savings Estimate — 8kW System
$80,000–$120,000
Range based on 2–5% annual electricity rate escalation
Why Eversource's Rate Hike Makes Solar More Urgent
Eversource filed for an 18% rate increase in 2025, with PURA's decision expected in spring 2027. If approved, the average residential customer would pay approximately $25–$35 more per month — adding $300–$420 to annual electricity costs.
Every month you delay going solar is a month you pay higher utility rates. The RRES program's fixed Buy-All tariff rate doesn't change — but your utility rates will.
Action step: Get a free Connecticut solar assessment to see exactly what your system would cost, what you'd save, and which programs you qualify for. The math is stronger now than it's ever been in Connecticut.