Connecticut commercial solar incentive programs 2026 overview for businesses and manufacturers
Connecticut commercial solar projects can qualify for multiple stacking incentives in 2026 — federal ITC, state programs, utility rebates, and tax exemptions.

Connecticut Commercial Solar Incentive Stack 2026

The following incentives can be stacked on a qualifying Connecticut commercial solar project. Our team verifies eligibility for every applicable program and applies each one to maximize financial return. For context on how these work with financing, see our Connecticut commercial solar overview, our ESP zero cap-ex program guide, and our full 2026 tax incentives guide.

Federal ITC 30-50%

30-50%

Base 30% plus applicable adders through Dec 31, 2027.

C-PACE Financing (CT Green Bank)

Below-market financing

Commercial Property Assessed Clean Energy financing at below-market rates repaid through property taxes over 25 years.

Eversource/UI Net Metering

Retail rate, up to 2 MW

Retail-rate credit for excess solar generation for systems up to 2 MW.

CT Sales Tax Exemption

Full exemption

Solar equipment exempt from Connecticut sales tax.

Municipal Property Tax Relief

Varies

Many CT municipalities offer solar property tax exemptions — verify locally.

MACRS 5-Year Depreciation

5-year schedule

Federal accelerated depreciation on ITC-adjusted basis.

How to Maximize the Connecticut Incentive Stack

The most effective approach combines the federal ITC with applicable state and utility programs in a single project. Our team models every qualifying incentive for your facility and finances the project under the ESP model for zero upfront cost — meaning the combined incentive value covers the full project cost for qualifying businesses with sufficient federal tax liability.

Key steps: confirm federal ITC eligibility and calculate energy community or domestic content adder eligibility; identify applicable state and utility program applications and deadlines; determine MACRS depreciation benefit based on your entity type and tax rate; and calculate net cash flow under the ESP model before signing any contract.

For a side-by-side comparison of financing structures that applies these incentives, see our commercial solar financing models guide. For the full federal ITC calculation including OBBBA changes, see our ITC / OBBBA guide. For MACRS depreciation strategy, see our depreciation guide.

Authority Resources for Connecticut Solar Incentives

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