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Connecticut

The state where every kilowatt saved pays back fastest.

Connecticut has the highest residential electricity rates in the contiguous United States, which is terrible for bills and excellent for efficiency ROI. Energize CT heat pump rebates reach $10,000, the Smart-E Loan funds projects at 2.49-4.99% APR up to 12 years, and the Residential Renewable Energy Solutions solar program locks in production payments for 20 years.

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$10,000
Energize CT heat pump max
3rdNat'l
Highest residential electric rates
5-7Yrs
Typical solar payback
CT · Connecticut
A historic Colonial-era home in a leafy Connecticut suburb, oak trees and manicured lawn
Why now · Connecticut

Your rate nearly doubled in 15 years.

You paid 18.7¢ per kilowatt-hour in 2010. Today you pay 32¢, the highest residential rate in the contiguous United States. The rebates on this page exist because nobody, including your utility, expects that line to flatten out.

The hedge Solar locked at 8¢/kWh, flat 25 yrs
See how solar locks you in
Residential rate · Connecticut
2010–2025 · cents per kWh
0¢ 10¢ 20¢ 30¢ 2010 2015 2020 2025 US avg $0.169/kWh Eversource CT 32.0¢ UI 32.5¢ Solar 8.0¢ your rate hedge ¢/kWh, residential
Eversource CT United Illuminating Solar LCOE US national average
Source · EIA Form 861, residential class, 2010–2025. State averages and the US national line both pulled from the same dataset for an apples-to-apples comparison.
Major utilities coveredEversource, United Illuminating, Norwich Public Utilities
A real example · West Hartford, CT

What a gas-to-heat-pump rebate stack actually looks like.

A 3-ton ducted heat pump (R-32, cold-climate certified) qualifies for the Energize CT whole-home gas-displacement rebate at the top of the range: $10,000 stacked toward your project. The new New England Heat Pump Accelerator adds $650 in 2026. The Smart-E Loan finances the install at 2.49–4.99% APR for up to 12 years, so most CT projects move forward with no money down on day one.

See the programs that make this stack
Connecticut · Programs

Every program, every rebate.

Each one has its own deep-dive page: eligibility rules, rebate amounts, worked examples, timelines, and FAQs.

Heating & CoolingFlagship
Energize Connecticut Heat Pumps
The state's unified Eversource + UI rebate program.
$10,000
Max whole-home (gas displacement)

Energize CT is the shared brand under which Eversource and United Illuminating deliver residential efficiency rebates, funded by the Connecticut Energy Efficiency Fund. 2026 heat pump rebates reach $10,000 for whole-home gas-displacement conversions, with partial-home rebates layered on top.

Read full details
7 rebates·2 FAQs
Solar
CT Residential Renewable Energy Solutions
Buy-all/sell-all solar tariff locked for 20 years.
Locked
20-yr production contract
Insulation
Insulation Overview
Comfort, durability, and bill-cut math that holds without a federal credit.
Up to 25%
Annual heating bill cut
Energy Storage
Energy Storage Overview
Backup, bill-shaping, and resilience that pays back.
$1–3K
Per major outage
Windows & Doors
Windows & Doors Overview
Comfort, draft reduction, and durability that pays back.
Up to 25%
Annual heating bill cut
Beyond EnergizeCT

Your utility offers extras on top.

Eversource and United Illuminating offer the country's strongest Buy-All Tariff at $0.3289/kWh, plus EnergizeCT rebates and demand-response cash.

See all utility programs in Connecticut
Other states we serve

The rebate stack varies by state.

We track every program in 11 states. Pick yours to see the full picture.

ME Maine NY New York NH New Hampshire NJ New Jersey VT Vermont MD Maryland RI Rhode Island MI Michigan FL Florida MA Massachusetts

Your Connecticut Home Efficiency Score is waiting.

See every rebate you qualify for, stacked for your exact address. Free, no obligation, sixty seconds.

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