Is there still a solar tax credit for Derby homeowners in 2026?
The 30% federal credit is gone for 2026 installations. What survives for Derby: Connecticut's own incentives and tax treatment - verified against state sources.
The 30% federal solar tax credit ended for installations finished after December 31, 2025 - Derby systems completed in 2026 get $0 from it.
Installed home solar for Derby homeowners averages about $2.58 a watt across the U.S. marketplace - roughly $30,960 for a 12 kW system before incentives.
Derby, Connecticut has about 12,915 residents, and its solar quotes are built from system size, roof complexity and export rules - not the town name.
Leased and PPA systems deserve extra scrutiny in 2026: the sales pitch often bundles 'tax savings' that now accrue to the leasing company under separate commercial rules - not to you. Get every claimed saving in writing, attributed to a specific law, before signing a 20-25 year contract.
The federal Residential Clean Energy Credit - the 30% one every solar ad still quotes - was repealed by the One Big Beautiful Bill Act signed July 4, 2025. Per the IRS, it is not available for any system placed in service after December 31, 2025, and 'placed in service' means the installation completion date, not the contract date.




The 2026 numbers
| System size | Installed price (marketplace avg) | Notes |
|---|---|---|
| 6 kW | $15,480 | Small roof / low usage |
| 8 kW | $20,640 | Typical starter system |
| 10 kW | $25,800 | Family home with AC |
| 12 kW | $30,960 | Large home / EV charging |
| Home battery (optional) | $12,000-$16,000 | Backup power + self-consumption |
Get solar quotes for Derby
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The 30% federal tax credit is gone for 2026 installations
The federal Residential Clean Energy Credit (30%) was repealed by the One Big Beautiful Bill Act signed July 4, 2025. Per the IRS, the credit is not available for any property placed in service after December 31, 2025 - and the IRS counts the installation completion date, not the contract date.
Connecticut rules that decide your payback
| Rule | Connecticut status |
|---|---|
| Export compensation (net metering) | Connecticut ended net metering for new residential systems - anything interconnected on or after January 1, 2022 is compensated under PURA's Residential Renewable Energy Solutions (RRES) tariff for a 20-year term, with the homeowner choosing either the Buy-All tariff (the utility buys 100% of production at a fixed rate while the home's consumption is billed normally) or the Netting tariff (monthly netting, but metered production carries a non-bypassable per-kWh 'Solar Energy Adjustment' charge set annually by PURA), and PURA reset both tariff rates for projects enrolling in 2026. |
| State incentive | Residential Renewable Energy Solutions (RRES) Program - the statewide 20-year Buy-All / Netting tariff administered by Eversource and United Illuminating under Conn. Gen. Stat. 16-244z, with income-eligible and other adders; it replaced both legacy net metering and the Connecticut Green Bank's Residential Solar Investment Program (RSIP) |
| Sales tax on the system | Exempt |
| Property tax on added home value | Excluded |
Choosing the Netting tariff exposes the homeowner to the Solar Energy Adjustment, a non-bypassable charge PURA re-sets every year on every kWh the panels produce - it is not locked in at signing, and it rose sharply for 2026 enrollments, which materially changes payback math versus the Buy-All option.
This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.

What this means for Derby roofs
The honest 2026 answer for Derby: solar pays back slower without the 30% credit - paybacks that ran 7-10 years often now run 10-14 - but electricity rates keep rising and hardware is the cheapest it has ever been. The deciding factor is Connecticut's export compensation, covered in the net metering section.
This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.
Getting Derby quotes
Before requesting quotes, have your last 12 months of electricity bills handy - system sizing should follow your real usage, not a salesperson's template. A bid sized far above your usage is a margin play, especially now that surplus export pays less in most states.
This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.
Common questions
Should I lease, get a PPA, or buy?
Buying keeps all savings and any incentives with you. Leases and PPAs put a company's equipment on your roof for 20-25 years, complicate a home sale, and in 2026 any tax benefits they advertise belong to the company under commercial rules - not to you. Read escalator clauses carefully.
Is my roof even suitable for solar?
Three things decide it: orientation (south-facing is best in the U.S., east-west workable), shade (trees or taller buildings across midday hours can sink the math), and roof age (if the shingles have under 10 years left, reroof first - removing and reinstalling panels later costs thousands). Any honest installer assesses all three before quoting a number.
How long do solar panels actually last?
Panels are typically warrantied for 25 years of production and commonly outlive it, losing about 0.5% output per year. Inverters are the component that usually needs replacement - typically once, around year 12-15, at a few thousand dollars.
Does solar raise my property taxes?
It depends on the state - many exempt solar's added home value from property tax, others do not, and some exemptions have expiration dates. This guide's state page lists the verified rule and source for your state.
Is solar still worth it without the federal credit?
It depends mostly on your state's export rules and your daytime usage. Paybacks lengthened by roughly a third when the credit ended, but rising electricity rates and record-cheap hardware keep the math workable in states with decent export compensation - and marginal where exports pay avoided cost only.
Get solar quotes for Derby
These platforms collect bids from licensed installers so you can compare against the same spec. Prices come from installers, not from this site.
Disclosure: this is an independent guide. If you request quotes through a link here, the platform may pay this site a referral fee. That fee never changes your quotes.
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