Commercial Solar in Connecticut in 2026
Connecticut Eversource and United Illuminating commercial rates are the second-highest in the continental US, creating an exceptional financial case for commercial solar. The Connecticut C-PACE program (Commercial Property Assessed Clean Energy) allows property owners to finance solar through property tax assessments at below-market interest rates over 25 years — an alternative to the ESP model for businesses that prefer not to use tax-based financing. Both utilities offer retail-rate net metering for commercial systems up to 2 MW. See DSIRE Connecticut for all current programs.
Connecticut Solar Incentives 2026
- Federal ITC (30-50%): Base 30% plus applicable adders through Dec 31, 2027
- C-PACE Financing (CT Green Bank): Property-assessed clean energy financing at below-market rates, repaid through property tax — 25-year term available
- Eversource/UI Net Metering: Retail-rate credit for excess solar generation for systems up to 2 MW
- Sales Tax Exemption: Solar equipment exempt from CT sales tax
- Municipal Property Tax Exemptions: Many CT municipalities offer solar property tax relief
- MACRS 5-Year Depreciation: Federal accelerated depreciation on ITC-adjusted basis
How to Get Started With Connecticut Commercial Solar
The fastest path to locking in incentives is requesting a proposal now. Our team verifies ITC eligibility, checks energy community adder status, identifies applicable state programs, and connects you with a vetted Connecticut EPC. The December 31, 2027 ITC in-service deadline makes timeline certainty critical — starting the proposal and interconnection process now is essential. For more on financing, see our ESP zero cap-ex program guide and commercial solar financing comparison. For tax strategy, see our MACRS depreciation guide and 2026 tax incentives overview.
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