For business owners in Massachusetts, Rhode Island, and Connecticut, going solar doesn’t have to require a large upfront capital investment. In 2026, there are three primary financing structures that make commercial solar accessible for businesses of every size: C-PACE financing, Power Purchase Agreements (PPAs), and the federal 30% Commercial Investment Tax Credit (ITC).
Option 1: C-PACE Financing — Zero Upfront, Long-Term Savings
Commercial Property Assessed Clean Energy (C-PACE) financing is available in all three states and allows businesses to finance 100% of their solar installation cost through a property assessment repaid over 10–25 years via property tax bills. Key advantages include: no upfront capital, no personal guarantee, off-balance-sheet financing, and the assessment transfers to the new owner if the property is sold.
- Massachusetts C-PACE: Administered by MassCEC. Available statewide for commercial, industrial, and nonprofit properties. [MassCEC C-PACE]
- Connecticut C-PACE: Administered by the Connecticut Green Bank. One of the most active C-PACE programs in the nation. [CT Green Bank C-PACE]
- Rhode Island C-PACE: Available for commercial properties statewide. [RI C-PACE]
Option 2: Power Purchase Agreements (PPAs)
A Solar PPA allows a business to host a solar system on its property with no upfront cost. A third-party developer owns, operates, and maintains the system, and the business purchases the electricity generated at a fixed rate — typically 10–30% below current utility rates. PPAs are ideal for businesses that cannot fully utilize the 30% federal ITC (e.g., nonprofits and tax-exempt entities).
Option 3: The 30% Federal Commercial ITC — Act Before December 31, 2027
For businesses that own their solar system outright or through a loan, the federal Clean Electricity Investment Credit (§48E) provides a 30% tax credit on the full installed cost of the solar system. This credit is available for commercial systems placed in service through December 31, 2027. Combined with MACRS 5-year accelerated depreciation (which can add another 20–26% in tax savings), the effective net cost of a commercial solar system can be reduced by 50–56% in Year 1. [IRS §48E]
Stacking Incentives: The Maximum Savings Strategy
The most financially optimal commercial solar strategy combines multiple incentives:
- 30% Federal ITC (§48E)
- MACRS 5-Year Accelerated Depreciation
- State SREC or REG Tariff revenue
- C-PACE or low-interest loan financing
- Net metering bill credits
A $500,000 commercial solar project in Massachusetts, for example, could yield: $150,000 federal ITC + ~$130,000 MACRS depreciation savings + $15,000–$25,000/year in SREC revenue + $30,000–$50,000/year in utility bill savings. Total first-year financial benefit: $295,000–$325,000.
Ready to Structure Your Commercial Solar Financing?
At Tito W. Daniels | Rooftop Power, we help MA, RI, and CT businesses evaluate all available financing options, model ROI scenarios, and structure projects to maximize incentives before the 2027 federal ITC deadline.
Schedule your commercial solar financial analysis today →
Sources: MassCEC C-PACE, CT Green Bank C-PACE, RI C-PACE, IRS §48E Clean Electricity Investment Credit, DSIRE Database of State Incentives for Renewables and Efficiency