C-PACE Financing
Commercial Property Assessed Clean Energy

What Is C-PACE Financing?

Commercial Property Assessed Clean Energy (C-PACE) is a public-private financing mechanism that allows commercial, industrial, and multifamily property owners to finance energy efficiency, renewable energy, and water conservation improvements through a voluntary assessment on their property tax bill. Unlike a conventional loan, C-PACE financing does not require out-of-pocket equity, monthly loan payments to a private lender, or balance sheet impact — the repayment obligation runs with the land as a property tax assessment, not with the borrower.

C-PACE programs are authorized by state enabling legislation and administered through local government or a program administrator. As of 2025, more than 38 states have active C-PACE legislation, including major markets in California, New York, Texas, Florida, Colorado, Ohio, and Connecticut. Leading C-PACE lenders operating nationally include Nuveen Green Capital, Greenworks Lending, PACE Equity, and Petros PACE Finance. Each lender underwrites based on property value and projected energy savings, not borrower creditworthiness — making C-PACE accessible to properties that may not qualify for traditional financing.

Why C-PACE Matters for Commercial Property Owners

The core value proposition of C-PACE is cash flow positivity from day one. Because amortization terms extend 20–30 years and interest rates in 2025 range from approximately 7.5% to 10.5%, the annual assessment payment is typically structured to be lower than the projected energy savings — meaning the project pays for itself even before any tax incentives are applied. This fundamentally changes the project economics compared to conventional financing: there is no equity deployed, no balance sheet leverage consumed, and the IRR calculation starts from a zero-cost basis.

C-PACE is also a powerful incentive stacking vehicle. When combined with the federal Investment Tax Credit (ITC) at 30% for solar and storage, and MACRS bonus depreciation providing a Year 1 accelerated deduction on the remaining 70% of project cost, the effective cost of capital can fall to 5–6% equivalent or better. Some C-PACE lenders offer ITC pass-through structures where the lender takes the tax credit and passes the benefit to the borrower as a reduced interest rate — a particularly useful structure for borrowers without sufficient federal tax appetite to use the ITC directly.

Key Considerations

• Lender consent is the main friction point. C-PACE assessments are senior liens in most state programs, sitting ahead of the mortgage in foreclosure priority. Your existing mortgage lender must formally consent. Most institutional lenders — banks, life companies, Fannie/Freddie for multifamily — will consent with proper documentation. CMBS loan servicers may require special servicer approval and can add 2–4 months to the timeline.
• State eligibility varies by program maturity. Not all 38+ states have equally active programs. California, Connecticut, Ohio, and New York have high-volume, well-capitalized programs. Some states have enabling legislation but limited active lenders. Verify which C-PACE lenders are approved in your specific county or municipality before investing in project development.
• Minimum project size is typically $250K or more. Most C-PACE programs and lenders have minimum project thresholds. Small projects are often not cost-effective given the program administration and legal costs. Projects in the $500K–$5M range are the sweet spot for C-PACE.
• Eligible improvements must be permanently affixed to the property. Moveable equipment does not qualify. Solar PV, HVAC systems, building envelope (roof, insulation, windows), LED lighting, BAS controls, EV charging infrastructure, and water efficiency systems are all standard eligible improvements. This distinction also affects the accounting treatment.
• Get 2–3 C-PACE lender quotes — rates vary significantly. Interest rates among C-PACE lenders in 2025 range from approximately 7.5% to 10.5% depending on lender, state program, property type, and term. Running a competitive RFP process typically reduces your rate by 50–100 basis points and ensures optimal term structure for your project.

Typical Costs & ROI

Use our Cost Estimator → to model your specific project's cash flow and payback.

Available Incentives

C-PACE is itself a financing mechanism, but it stacks powerfully with federal and state incentives. The federal ITC at 30% for solar and battery storage reduces the effective principal financed — or, in an ITC pass-through structure, reduces your interest rate. MACRS bonus depreciation (100% in Year 1 through 2025, stepping down thereafter) provides an additional accelerated deduction on the remaining 70% of project cost after ITC. For a $1M solar project: $300K ITC in Year 1 + $490K depreciation deduction (70% × 100% bonus) = a combined federal tax benefit approaching $500K–$600K depending on your tax rate — all on a project with zero equity deployed. State-level incentives (rebates, grants, accelerated depreciation) stack on top. Explore the full incentive picture with our IRA Credits Calculator →.

Certifications to Look For

C-PACE advisors and project developers who manage the lender RFP process and coordinate with your mortgage lender should hold the Certified Energy Manager (CEM) credential from the Association of Energy Engineers — it demonstrates the technical depth required to structure and document energy improvement projects for C-PACE underwriting. Installing contractors should carry credentials appropriate to their scope: NABCEP certification for solar PV work, LEED AP BD+C for green building design, or a licensed PE for structural and mechanical work. C-PACE lenders do not require borrower certification, but project documentation quality directly affects underwriting speed and approval likelihood.