Connecticut Solar Incentives 2026 — Every Dollar You Deserve
Connecticut has built one of the strongest solar incentive programs in the country. Sales tax exemptions. Property tax exemptions. Production credits locked for 20 years. Battery incentives exceeding $33,000.
Connecticut solar incentives in 2026 include state net metering, property tax exemption for solar, and sales tax exemption on equipment. Combined, these incentives can reduce the total cost of a solar system by 40-50% for CT homeowners.
And every year, that number gets worse. your utility raised rates 29% in January 2026. They didn’t ask you. They didn’t give you a choice. They just sent a bigger bill.
But here’s what most Connecticut homeowners don’t realize: even without the federal Investment Tax Credit — which expired December 31, 2025 — Connecticut’s state incentives, combined with the savings from generating your own power, make going solar one of the smartest financial moves you can make in 2026.
Incentive 1
Connecticut Sales Tax Exemption (6.35%)
What it is
All solar energy equipment purchased and installed in Connecticut is exempt from the state’s 6.35% sales tax. This savings is automatic — it’s built into your price, not something you need to apply for or claim.
What it saves you
On a typical residential solar system costing $20,000–$30,000, the sales tax exemption saves you $1,270–$1,905.
System cost: $27,000 (at ~$2.70/watt)
Sales tax you’d normally owe: $27,000 × 6.35% = $1,714.50
With the exemption: $0 in sales tax
That’s $1,714.50 you keep before the system even produces its first kilowatt-hour.
Incentive 2
Connecticut Property Tax Exemption (100%)
What it is
Solar panels increase your home’s value — but in Connecticut, the added value from solar is 100% exempt from property taxes. Your home is worth more, but your tax bill stays the same.
What it saves you
This exemption is permanent for as long as the solar system is on your home. Over 20 years, that’s $7,000–$10,000+ in avoided property tax increases — money you never see on a bill because the exemption prevents the increase from ever happening.
This is one of the most overlooked solar incentives in Connecticut. Your home’s resale value goes up; your property taxes don’t.
Incentive 3
RRES Netting Tariff — Net Credits at Retail Rate
What it is
Connecticut’s Residential Renewable Energy Solutions (RRES) program replaced the state’s old net metering system. Under the Netting Tariff, when your solar system produces more electricity than your home uses, the excess is sent to the grid and you receive credits at full retail rate. Those credits roll over indefinitely — they never expire and they never reset.
How the Solar Energy Adjustment works
For systems enrolled in 2026, a Solar Energy Adjustment of $0.0402/kWh applies to ALL electricity your system produces (not just what you export). This rate is locked at 4.02¢/kWh for 20 years from your enrollment date.
Why the 20-year rate lock is an advantage
your utility has raised rates 29% in a single year. Over 20 years, electricity rates may double or triple. But your Solar Energy Adjustment? It stays at 4.02¢ forever. In year 1, you’re saving ~22¢/kWh. By year 10, when rates may be 35–40¢/kWh, you’re still only paying 4.02¢.
Let’s be upfront: you’ll still see a monthly bill from your utility. But it will be significantly lower than without solar. Your solar credits offset most of the cost.
Math on a 10kW system (12,000 kWh/year):
Solar Energy Adjustment: 12,000 kWh × $0.0402 = $482.40/year
Electricity offset at retail (26¢/kWh): 12,000 × $0.26 = $3,120/year
Annual electricity benefit: $3,120 − $482.40 = $2,637.60/year
Effective benefit per kWh: ~22¢/kWh in year 1 — and it only gets better as rates rise
What about the cost of going solar?
- Prepaid Solar Lease: $20,000–$24,000 one-time → 25-year benefit of $65,940+ → Net savings: $41,940–$45,940+
- PPA (no upfront cost): No upfront cost, pay ~16–18¢/kWh → Save 8–14¢/kWh vs. your utility from day one
For a deeper look, see our complete guide to the CT Solar Energy Adjustment.
Incentive 4
RRES Buy-All Tariff — Sell Everything at a Fixed Rate
What it is
The second RRES option: instead of using your solar electricity and crediting the excess, you sell 100% of your system’s production to the grid at a fixed rate of $0.3289/kWh, locked for 20 years.
- The rate applies to ALL production — every kilowatt-hour your system generates
- No Solar Energy Adjustment applies under this tariff
- Credits can offset your electricity bill or be paid out quarterly
- The rate is locked for 20 years from enrollment
Math on a 10kW system:
Annual production: ~12,000 kWh
Annual credits: 12,000 × $0.3289 = $3,946.80/year
20-year credits: $78,936
The Buy-All Tariff can be attractive for homeowners who want maximum guaranteed revenue. However, it works differently than the Netting Tariff — your free quote will show you which option maximizes your savings.
Incentive 5
Energy Storage Solutions (ESS) — Battery Incentives
What it is
Connecticut’s ESS program is restructuring effective April 1, 2026 with a new design that shifts from large upfront rebates to performance-based incentives paid over 10 years. The total value can be higher than the old program for customers who participate fully.
Enrollment Incentives (one-time)
- Standard Residential: $30/kW
- Grid Edge Residential: $130/kW
Performance Incentives (paid annually for 10 years)
| Customer Class | Years 1–5 | Years 6–10 |
|---|---|---|
| Standard Residential | $300/kW | $300/kW |
| Underserved Residential | $450/kW | $450/kW |
| Low-Income Residential | $550/kW | $550/kW |
Example: 20 kW / 30 kWh battery system
| Customer Type | Enrollment | 10-Year Performance | Total |
|---|---|---|---|
| Standard | $900 (or $3,900 Grid Edge) | $18,000 | $18,900+ |
| Underserved | $900 (or $3,900 Grid Edge) | $27,000 | $27,900+ |
| Low-Income | $900 (or $3,900 Grid Edge) | $33,000 | $33,900+ |
What’s required: Participants must grant the utility access to dispatch the battery during peak demand events. Your battery helps stabilize the grid, and you get paid for it.
Source: CT ESS Program Changes for April 1, 2026. For more on battery options, see our batteries and solar generators guide.
Incentive 6
Smart-E Loan (CT Green Bank)
The Connecticut Green Bank offers Smart-E Loans for energy improvements including solar: low-interest rates, 5–15 year terms, and up to $50,000 in financing. Up to 25% can cover non-energy improvements like roof repairs.
Smart-E is one financing option in the CT market, though for most homeowners, a no-upfront PPA typically delivers better long-term value with less complexity. We recommend comparing all options before deciding.
- Connecticut Sales Tax Exemption (6.35%)
- All solar equipment purchased and installed in CT is exempt from the 6.35% state sales tax. Saves $1,270–$1,905 on a typical residential system. Applied automatically at purchase.
- Connecticut Property Tax Exemption (100%)
- Solar panels increase home value, but the added value is 100% exempt from property taxes in Connecticut. Saves $7,000–$10,000+ over 20 years in avoided property tax increases.
- RRES Netting Tariff
- Net metering program that credits excess solar energy exported to the grid at the retail electricity rate. Credits roll forward month to month, reducing your utility bill.
- RRES Buy-All Tariff
- Alternative to netting where 100% of solar production is sold to the utility at a fixed rate locked for 20 years. Ideal for rental properties and homeowners who want guaranteed income.
- Energy Storage Solutions (ESS) Battery Incentives
- Connecticut offers incentives exceeding $33,000 for qualifying battery storage systems. Covers residential batteries paired with solar installations.
- Smart-E Loan (CT Green Bank)
- Low-interest financing for energy improvements including solar. Available through participating CT lenders with terms up to 20 years. No prepayment penalties.
The Federal Tax Credit
“But the Federal Tax Credit Expired...” — Why CT Solar Is Still Worth It
Let’s address this directly. Yes, the 30% federal Investment Tax Credit (ITC) expired on December 31, 2025. If you’ve been researching solar, you’ve probably seen outdated articles still mentioning it. It’s gone.
And honestly? Connecticut homeowners are still in an excellent position.
The federal ITC was valuable, but it was never the only reason solar made financial sense. The real value of solar comes from not paying your utility 26–32¢/kWh for the next 20 years. The incentives reduce your upfront cost, but the savings come from generating your own electricity instead of buying it at some of the highest rates in America.
Connecticut’s state incentives are actually higher now than when the federal credit was available, which means your savings from solar are larger than they were a year ago.
The federal tax credit expired. Your utility bills didn’t.
The math still works — and it works well.
The Full Picture
What You Save WITH Incentives vs. WITHOUT
A typical 10kW solar system in Connecticut:
Want the full payback picture? See whether solar is worth it in Connecticut — real Connecticut payback timelines, incentives, and when solar makes financial sense.
Your savings WITH Connecticut incentives (Prepaid Lease)
| Incentive | Savings |
|---|---|
| Sales tax exemption (6.35%) | $1,270–$1,524 |
| Property tax exemption (20 years) | $7,000–$10,000+ |
| Electricity benefit vs. your utility (20 years at ~22¢/kWh net) | $52,000+ |
| Total estimated 20-year benefit | $60,000–$64,000+ |
| Minus: Prepaid Solar Lease cost | −$20,000–$24,000 |
| Your net savings over 20 years | $36,000–$44,000+ |
Your cost WITHOUT solar (staying on your utility)
| Expense | 20-Year Cost |
|---|---|
| Electricity at 26–32¢/kWh | $54,000+ |
| Rate increases (compounding) | Additional thousands |
| Control over your energy costs | None |
| Total | $54,000+ and rising |
Pay once. Save $36K–$44K+.
Pay $20,000–$24,000 once → $60,000+ in electricity benefits + incentives → Net savings: $36,000–$44,000+
Pay nothing. Save immediately.
Pay $0 upfront → Save 8–14¢/kWh vs. your utility from day one → Savings start immediately, no investment required
If you choose the Buy-All Tariff instead, your 20-year credits alone total nearly $79,000 — before even counting tax exemption savings.
Why SunPol
How SunPol Makes This Simple
Understanding incentives is one thing. Actually capturing them is another. SunPol Solar is based in Newington, Connecticut. We’ve completed 100+ installations across 60+ towns. We handle:
- System design customized for your roof, usage, and goals
- Permitting and paperwork — including RRES enrollment
- Installation by our experienced team and trusted local partners
- Utility interconnection so your system starts producing
- Monitoring and maintenance for the life of your system
- Warranty coverage — see our warranty details
When you request your free quote, you get a detailed report showing your specific system size, estimated production, and financing options compared side by side — prepaid solar vs PPA, no-upfront PPA, and cash purchase. Every incentive on this page is factored into your personalized numbers. See how prepaid solar compares to other options.
Take Action
Take Control of Your Energy Costs
Every month you stay on your utility at 26–32¢/kWh is a month you’re paying more than you need to. Connecticut’s incentive programs exist because the state wants homeowners like you to benefit from solar — and the numbers back it up.
You don’t need the federal tax credit to make solar work. You need a system designed for your home, the right financing option, and someone who knows how to capture every incentive you’re entitled to.
Common Questions
Frequently Asked Questions
Are there still solar incentives in CT without the federal tax credit?
Yes — and they’re substantial. While the 30% federal Investment Tax Credit expired December 31, 2025, Connecticut’s state-level incentives remain fully in effect. You still get the 6.35% sales tax exemption, the 100% property tax exemption, RRES program credits (Netting or Buy-All tariff locked for 20 years), and battery performance incentives up to $33,000+ through the ESS program.
How much do CT solar tax exemptions save homeowners?
The sales tax exemption (6.35%) saves $1,270–$1,905 on a typical $20,000–$30,000 system. The property tax exemption prevents any increase from the added home value solar provides. Over 20 years, the property tax exemption alone can represent $8,000–$12,000+ in tax savings.
What is the RRES program and which tariff should I choose?
The RRES program offers two options. The Netting Tariff credits you at full retail rate for excess solar sent to the grid, with credits rolling over indefinitely — a Solar Energy Adjustment of $0.0402/kWh applies but is locked for 20 years. The Buy-All Tariff pays $0.3289/kWh for ALL your production with no Solar Energy Adjustment, locked for 20 years. The best choice depends on your usage pattern — your free quote will show you which option maximizes your savings.
What is the Solar Energy Adjustment and does it reduce my savings?
The Solar Energy Adjustment is a charge of $0.0402/kWh that applies to all electricity produced under the RRES Netting Tariff. It’s locked at 4.02¢ for 20 years — and that lock is actually an advantage. As utility rates rise, the net savings grow dramatically. Your overall bill will still be significantly lower than without solar. Read our full breakdown of the Solar Energy Adjustment →
How much can a 10kW solar system save with all CT incentives?
A 10kW system produces roughly 12,000 kWh/year. With all Connecticut incentives — sales tax exemption ($1,270–$1,905), property tax exemption ($7,000–$10,000+), and electricity savings vs. your utility — the total estimated 20-year benefit is $60,000–$64,000 or more. On a Prepaid Solar Lease investment of $20,000–$24,000, that’s a net gain of $36,000–$44,000 over 20 years.
Can I get a battery rebate on top of solar incentives?
Yes. The ESS battery incentive is a separate program that stacks on top of all other solar incentives. Starting April 1, 2026, the program offers significant performance incentives paid annually for 10 years — $300/kW per year for standard customers, up to $550/kW for low-income households. A standard customer with a 20 kW system can earn $18,900+ in total incentives over 10 years. Learn more about battery options →
Does Connecticut still have net metering?
Connecticut replaced its old net metering program with the RRES program, which is actually more favorable for homeowners. Under the old system, credits could expire or be zeroed out. Under the RRES Netting Tariff, credits roll over indefinitely at full retail rate. The Buy-All Tariff offers a guaranteed fixed rate of $0.3289/kWh for 20 years.
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