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20 years of power. Guaranteed.
Solar and battery storage with locked-in rates and a production guarantee.
If our system doesn't produce, you don't pay.
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Which one are you?
Already on Maxwell? Go to the platform →
Are you a homeowner?
Calculate your savings
Drag to your average monthly electric bill. Maxwell locks your rate ~25% below the utility — for 25 years.
Estimate assumes utility rates keep rising ~4.5%/yr (the CA investor-owned-utility 10-year average) while Maxwell's rate escalates just 1.9%/yr. Your exact quote is built from your real bill.
Your estimated savings
Every month
$63
First year
$750
Over 25 years
$62,541
vs. staying with the utility · production guaranteed, or you don't pay
Free · no obligation · matched with a Maxwell-backed installer in your area
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Full Brand Launch Autumn 2026
How it works
One payment. Twenty years. Guaranteed.
Solar + Battery
We install solar and battery storage at your home, sized to your needs, and keep it running for the life of the contract.
Prepaid PPA
One upfront payment locks in 20 years of energy at a rate that beats the rising cost of the utility. No lease, no surprises.
Production Guarantee
We monitor and maintain everything. If the system doesn’t produce the power we promised, you don’t pay us.
Our Track Record
We are on the hook to produce power, so we use only top-quality equipment and stand behind every system we install.
Frequently asked
Answers, not asterisks.
Everything you want to know about going solar with a company that puts the guarantee in writing.