Once you start looking into solar, the quotes come fast — and they're hard to compare, because every company presents the numbers differently. This guide gives you a clear framework so you can tell a genuinely good offer from a bad one.
Compare the same thing across quotes
The first problem with solar quotes is that they're rarely apples-to-apples. One company quotes a purchase price, another quotes a monthly lease payment, a third quotes "savings." Before comparing, make sure you're looking at the same metric. For a lease, the number that matters is your monthly payment and how it changes over time. For a purchase, it's the total cost after incentives and the payback period.
Ask about the escalator
This is the single most important question for a solar lease, and many people never ask it. An "escalator" is the rate at which your monthly payment increases each year. A low or zero escalator is good. A high escalator (3% or more) can erode your savings over time. Always ask: "What is the annual escalator, and what will my payment be in year 10 and year 20?"
Check the production guarantee
A solar system should come with a written guarantee of how much electricity it will produce. If the system underperforms, a good contract says the company compensates you for the difference. If a quote has no production guarantee, that's a meaningful gap.
Understand what's included
Does the price include permitting? Utility interconnection? Monitoring? Maintenance and repairs? With a lease, maintenance should always be included — the partner owns the system. With a purchase, clarify exactly what you're responsible for. Hidden costs usually live in these details.
Red flags to watch for
Be cautious if a company pressures you to sign immediately, won't put figures in writing, quotes "savings" without showing the underlying math, or can't clearly explain the escalator and the exit options. High-pressure sales tactics are common in solar, and they're a signal to slow down — not speed up. A legitimate company is comfortable with you taking time to think.
Questions that reveal a good deal
Bring this short list to any solar conversation: What is my exact monthly payment, and what is it in years 10 and 20? Is there a production guarantee in writing? What happens if I sell my home? What is the buy-out option and when does it start? Who handles maintenance, and at what cost? Clear, direct answers are a good sign. Evasive answers are not.
The bottom line
A good solar deal survives scrutiny. If a company is transparent about the escalator, the guarantee, the exit options and the maintenance, you can compare it fairly against others. Run a free estimate to get a clear baseline number, and read our guide on lease vs buying to decide which path fits you.
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