Last updated: June 19, 2026
Solar Panel ROI Calculator (2026) is a free, client-side web tool. All calculations happen entirely in your browser. Your system cost, energy, and financial data inputs never leave your device and are never transmitted to any server.
We do not collect, store, process, or transmit any personal information or financial data. We do not use cookies, analytics trackers, fingerprinting, or any form of user tracking. No account creation is required. No email address is collected.
This tool does not currently use browser localStorage. All data you enter exists only in your browser session and is discarded when you close the tab.
This site may display advertisements served by Google AdSense. Google may use cookies to serve ads based on your prior visits to this website or other websites. You can opt out of personalized advertising by visiting Google Ads Settings.
This site contains affiliate and referral links to third-party services (EnergySage, SolarReviews) and a non-affiliate link to DSIRE (dsireusa.org). Clicking affiliate links may result in a commission to us at no extra cost to you. These third parties have their own privacy policies governing data you submit to them directly.
This calculator is provided for general educational and informational purposes only. It is not tax advice, financial advice, energy advice, or legal advice. Results are estimates based on the inputs you provide and simplified assumptions. Federal and state solar incentives change frequently — always verify current incentive status at dsireusa.org or with a licensed tax professional. Consult a licensed solar installer, tax advisor, and your utility before purchasing any solar system.
This service is not directed to children under 13. We do not knowingly collect information from children.
We may update this Privacy Policy occasionally. Changes will be reflected by the "Last updated" date above.
If you have questions about this Privacy Policy, contact us at: 2151864@gmail.com
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