
Connecticut
Connecticut solar in 2026
Connecticut solar is not a generic net-metering story. The Residential Renewable Energy Solutions program asks the homeowner to choose a tariff: sell every kWh through Buy-All, or use solar in the home and take Netting. Both choices hold for 20 years. With 27.37 cent electricity and a 31.89 cent Buy-All rate, load shape matters more than the word "solar" on the proposal.
Connecticut electricity is the starting point, not the finish line
At 27.37 cents per kWh, a Connecticut household has a meaningful avoided-cost case before any tariff choice enters the picture. An owned array is modeled near 7.9 cents per kWh over 25 years. But RRES changes what each generated kWh is worth, so the important work is comparing the two payment paths against the household's use pattern.
| Energy source | Type | Average price | What that means |
|---|---|---|---|
| Connecticut residential average | Grid electricity | 27.37¢ for each kWh | EIA Table 5.6.A reports the statewide household average for May 2026. |
| Connecticut household gas | Natural gas | $23.33 per Mcf | The EIA May 2026 series works out to about 7.7 cents per thermal kWh. 1 Mcf contains about 304 kWh of thermal energy. |
| Paid-off rooftop array | Electricity | ~7.9¢ for each kWh | A 25-year levelized estimate based on EnergySage state cost and these PVGIS runs. Financing and RRES export treatment are excluded. |
The electric-price reference is EIA Table 5.6.A for May 2026. The gas reference is EIA natural gas prices for May 2026, using 304 kWh of thermal energy per Mcf. The solar calculation and its method are on the methodology page.
A tight production range, a big tariff decision
Connecticut's modeled city range is tight. Hartford is the lower figure and the coastal and southwestern cities are clustered above it. Production will vary roof by roof, but the RRES tariff election is likely the larger financial fork for many households.
| Place | Estimated annual kWh per kW | 11.68 kW example, yearly kWh |
|---|---|---|
| Bridgeport | 1,365 | 15,939 kWh |
| Hartford | 1,314 | 15,343 kWh |
| New Haven | 1,367 | 15,970 kWh |
| Stamford | 1,367 | 15,965 kWh |
Method: PVGIS v5.2 model runs by Solar Learning Lab on August 18, 2026, using the NSRDB radiation database. Assumptions: fixed roof mount, south facing, 30 degree tilt, 14 percent losses. Your roof will differ. The 11.68 kW example matches the EnergySage Connecticut average system.
RRES makes you choose how the array gets paid
P.A. 19-35 and C.G.S. §16-244z replaced traditional net metering with RRES. Buy-All pays $0.3189 per kWh for all production. Netting credits exports at the applicable retail rate and carries a $0.000 REC rate. The tariffs are fixed for 20 years. United Illuminating's Rider RRES applies the structure to systems up to 25 kW AC on a 20-year term.
Here is the decision rule: Buy-All is clean if you want production paid under one tariff and do not want household consumption to drive the result. Netting can fit a house that uses substantial solar as it is generated, especially when its applicable retail rate is valuable. Low-and-moderate-income and distressed-municipality adders change the math. Ask the installer to model both options on your interval data. A single "savings" number is not enough.
Program documentation: PURA RRES FAQs. A value is identified as unavailable when our research could not verify it, rather than being replaced with an outdated estimate.
Which Connecticut quote lines have real value
| Quote item | Current value | What must be true |
|---|---|---|
| RRES Buy-All tariff | $0.3189 per kWh for 20 years | Payment for all solar production under the RRES program. (PURA RRES FAQs) |
| RRES Netting adders | $0.055 LMI, $0.0275 distressed municipality | Netting has a $0.000 REC rate before these qualifying adders. Confirm eligibility and tariff selection before signing. (PURA RRES FAQs) |
| Sales and use tax exemption | Exempt | Solar electricity generating systems, related equipment and installation services are exempt for qualifying sales. (C.G.S. §12-412(117)) |
| Federal 25D | Ended December 31, 2025 | Lease and PPA providers may still claim 48E and sometimes reflect that value in their pricing (CRS) |
The RRES election deserves its own worksheet
A Connecticut proposal can look simple until the payment route is named. RRES gives a homeowner two different 20-year arrangements under P.A. 19-35 / C.G.S. §16-244z. Buy-All sends every produced kWh into the program at $0.3189/kWh. Netting leaves household use in the picture: exported electricity receives the applicable retail rate plus a $0.000 REC rate. Neither choice is a footnote. They reward different load patterns, and the tariff selected at signing should be visible on every version of the financial model.
Start with the house's interval data, not an annual consumption total. The 27.37 cents per kWh statewide residential figure is close to the $0.3189/kWh Buy-All payment, but that proximity does not settle the decision. A household that consumes electricity as its array produces it can get a different Netting result than a household whose demand arrives later. Ask for production, on-site use, and exports to be shown separately. If the home may qualify, rerun both cases with the $0.055 low-and-moderate-income adder and the $0.0275 distressed-municipality adder. The numbers say those qualifications can move the comparison.
The tariff is current policy, not a sales illustration. PURA set Program Year 5 tariffs in Docket 25-08-02 on December 17, 2025. For United Illuminating customers, Rider RRES applies the structure to systems up to 25 kW AC for a 20-year term. That makes a system-size check part of the early design conversation. The separate sales and use tax exemption covers qualifying solar electricity-generating systems, related equipment, and installation services for sales on or after July 1, 2007. It should appear correctly in the quote, but it does not substitute for a sound tariff choice.
Sources: PURA RRES program page, UI Rider RRES, and C.G.S. §12-412(117).
Use this as a rate test, then run both RRES tariffs
The calculator measures the high retail-rate opportunity. It is not a tariff-selection engine for RRES. Before you sign, make the seller provide side-by-side Buy-All at $0.3189 per kWh and Netting results, including any $0.055 or $0.0275 adder you qualify for. Both elections live with you for 20 years.
PVGIS bounds across Connecticut are narrow. Tariff selection is usually the bigger variable.
Cash quotes in Connecticut cluster near $2.67 per watt, against a $3.50 national 2024 median (LBNL). Use your quote.
Assumptions you can change
Use the rate on your actual lease or PPA quote. There is no published statewide average we trust enough to hardcode.
Cash purchase
$17,355 after state credit
- Year 1 benefit
- $201/mo
- Payback
- 7 years
- 20 year net position
- $41,057
No state income-tax credit is modeled. Connecticut value comes from high retail electricity and the RRES tariff choice, with a qualifying sales-and-use tax exemption.
Solar loan
$226/mo 15 yr payment
- Year 1 net
- -$26/mo
- Upfront
- $0
- 20 year net position
- $17,714
Loan estimate uses the EnergySage cash figure plus the $1.20 per watt LBNL loan-over-cash spread.
Lease / PPA
$0 down you buy the power
- Year 1 net
- $25/mo
- Upfront
- $0
- 20 year net position
- $9,654
A third-party owner may claim federal 48E, but a PPA proposal should still disclose which RRES tariff applies for 20 years.
Estimates, not quotes. Inputs use EIA May 2026 electricity prices, Solar Learning Lab PVGIS runs, and EnergySage August 2026 cost data. A third-party owner may claim federal 48E, but a PPA proposal should still disclose which RRES tariff applies for 20 years. We are a solar installer and we also partner with other solar companies. See our disclosures.
Connecticut specifics worth acting on
- Demand side-by-side RRES projections. Buy-All is $0.3189 per kWh; Netting exports get applicable retail credit plus a $0.000 REC rate. (PURA).
- Check adders early. Low-and-moderate-income status can add $0.055 per kWh and distressed-municipality status can add $0.0275. (PURA RRES FAQs).
- Keep the 20-year commitment in view. UI Rider RRES applies a 20-year term for systems up to 25 kW AC. (UI Rider RRES).
- Do not leave sales tax embedded in the equipment quote. Qualifying systems and installation services are exempt. (C.G.S. §12-412(117)).
Connecticut installers with published review records
Connecticut's installer question is unusually concrete: will the proposal explain the RRES election instead of burying it? Use the reviews as a starting list, then make each bidder show Buy-All and Netting for the same roof, same system and same consumption profile. Check the credentials required for the work before a contract is signed.
Earthlight Technologies
Ellington, CT
4.9(513 Google reviews)
Solarship Corp
Rocky Hill, CT
5.0(207 Google reviews)
SAVKAT Solar
Bristol, CT
4.7(198 Google reviews)
PosiGen Home Solar
Bridgeport, CT
4.0(337 Google reviews)
Momentum Solar Connecticut
East Berlin, CT
3.9(577 Google reviews)
Review-record snapshot from Google Maps in August 2026, collected through the DataForSEO SERP feed. Zero companies paid us and none are endorsed by us. Before committing, confirm the electrical and contractor credentials needed for this project.
Start with a Connecticut tariff comparison
Answer four practical questions using this page's EIA and PVGIS information. We are a solar installer and we also partner with other solar companies. Details appear in our disclosures.
What does your monthly electric bill look like?
Connecticut average is $200 per month (EIA, 2024).