No-Capex vs PPA vs Solar Lease vs Cash Purchase: A Commercial Owner's Comparison
The trade-offs between cash, loan, lease, PPA, and no-capex commercial solar.
There's more than one way to put solar on a commercial building, and the financing structure matters as much as the panels. Here's how the main options compare for an owner who cares about capital, control, and the bottom line.
Cash purchase
You pay for the system outright. This delivers the lowest lifetime cost and full ownership, but it ties up significant capital and concentrates the project risk on you. It suits owners with capital to deploy and a strong reason to maximize long-run return over preserving liquidity.
Loan / financed purchase
You borrow to buy the system, then own it. You keep most of the ownership upside, but you take on the debt, the financing arrangement, and the performance risk. It works when you want ownership without the full upfront cash and can comfortably carry the loan.
Solar lease
You pay a fixed periodic amount to use a system owned by a third party. It removes the upfront cost, but the payment isn't necessarily tied to how much energy the system produces, so a poor production year can pinch.
Power Purchase Agreement (PPA)
A third party owns the system and sells you the power it generates at an agreed rate, usually below your grid rate. You pay only for production. PPAs remove upfront cost and shift performance risk to the provider, but availability depends on regulatory framework and the specifics can be complex.
The no-capex model
The capital cost is absorbed by a program partner and recovered from your utility savings over a defined term, structured so the repayment stays below the savings. You carry no upfront cost and arrange no financing yourself, and the arrangement is designed to be net positive from commissioning. After the repayment term, the warrantied system continues producing with the savings flowing to you.
The distinguishing feature of the no-capex model: it's structured to be cash-flow positive from day one, with no capital and no separate financing for the owner to arrange, while still leading to a paid-off, warrantied asset.
How to choose
- Maximize lifetime return, have capital: cash purchase
- Want ownership, prefer not to pay all cash: loan
- Want predictable cost, no ownership goal: lease
- Want to pay only for production, framework permitting: PPA
- Want zero upfront, no financing to arrange, net positive from day one, and eventual ownership: no-capex
The right answer depends on your capital priorities, your appetite for risk and complexity, and whether eventual ownership matters to you. An assessment can model more than one structure so you can compare them on your real numbers.