Contact
We read every email. Reply times are typically 1–3 business days. Use the address below for any inquiry.
What you can email us about
- General questions and feedback — corrections to a calculator, suggestions for new calculators, typo reports, broken-link reports, general questions about how to use the site.
- Editorial and content — guest post pitches, expert review offers (we welcome subject-matter expert review of our cost data and engineering pages), and content corrections backed by a primary source.
- Privacy requests — subject access requests, deletion requests, opt-out, and other privacy-related inquiries. See our Privacy Policy for the rights available to you depending on your jurisdiction.
- Advertising and partnerships — we accept display advertising via vetted ad networks only. We do not run sponsored content, paid product placements in calculator pages, or "best of" affiliate roundups.
What we do not handle
- Solar installation quotes. We are not a solar installer or referral broker. For quotes, contact local installers directly or use a marketplace like EnergySage.
- Engineering review of specific projects. Calculators give estimates only — site-specific design must come from a licensed engineer or installer.
- Refund or warranty issues with solar equipment. Contact the manufacturer or installer who sold you the equipment.