The trap · one line in the contract
Updated 09 Aug 2026 · Sourced to Public Law 119-21, IRC §25D and §48E
It is the annual increase built into your payment, and it compounds. On a payment starting at $150 a month over twenty-five years, a 2.9% escalator costs roughly $64,800 against about $45,000 with no escalator — a difference of about $19,800 on the identical system. Zero-escalator agreements exist. Ask for the twenty-five-year payment schedule and its total before you sign.
An escalator is a clause in a solar lease or power purchase agreement that raises your payment by a fixed percentage every year for the life of the contract. Typical figures are 1.9%, 2.5% and 2.9%. Some agreements have no escalator at all.
It is usually one line in a document you are signing on a tablet at your kitchen table, and it is the single largest variable in the deal.
Take a payment that starts at $150 a month on a twenty-five-year agreement.
| Escalator | Payment in year 1 | Payment in year 25 | Total paid over 25 years |
|---|---|---|---|
| 0% | $150 | $150 | about $45,000 |
| 1.9% | $150 | about $235 | about $56,900 |
| 2.9% | $150 | about $298 | about $64,800 |
The gap between a flat agreement and a 2.9% escalator on the same system is roughly $19,800 over the term. Nothing else about the system changed. Same panels, same roof, same production. One clause.
Illustrative arithmetic on a $150 starting payment, compounded annually over 25 years. Your agreement will differ — run your own numbers from your own contract.
Reps defend escalators by pointing out that utility rates rise too, so an escalating solar payment still beats an escalating utility bill. That is a fair argument and it is often true.
What is not fair is presenting the escalator as though it were a law of nature. Utility rate increases are uncertain and vary enormously by region and year. Your escalator is contractual and certain. You are being asked to trade an uncertain increase for a guaranteed one, and you should be told that is the trade.
The honest version sounds like: “Your payment goes up 2.9% every year no matter what. We think your utility will go up faster than that. Here is the rate history for your utility so you can judge.” If nobody says the first sentence out loud, you were not sold, you were processed.
An escalating payment can absolutely beat a utility bill, especially in high-rate territories where rates have climbed steadily. Plenty of people sign 2.9% agreements and come out fine.
The problem is not the clause. The problem is signing it without being shown the twenty-five-year total, which is how most of these are sold. Ask for the column and the total. If the deal still looks good with those on the table, it probably is one.
A clause that increases your monthly payment by a set percentage every year for the term of the agreement, commonly between 1.9% and 2.9%. It compounds, so the payment in the final year can be roughly double the first year.
Yes. The starting payment is usually higher in exchange for no annual increase. Ask for both versions priced on the same system and compare the twenty-five-year totals rather than the first payments.
On a payment starting at $150 a month it works out to roughly $64,800 over the term, against about $45,000 for the same payment with no escalator. Your own contract will differ.
Often yes, at least between the options a provider offers. Ask directly whether a lower or zero escalator is available on the same system and what the starting payment would be.
It is usually in the payment or pricing schedule, sometimes labelled annual adjustment or rate escalation. If you cannot find it in two minutes, ask the rep to point at it before you sign anything.
Tell me where you are and roughly what you pay. I come back with what is actually available in your utility territory, which structure fits, and what to watch for in the paperwork. No rep at your door.
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