Home Energy Calculators
Terms of Use
By using Home Energy Calculators ("the site"), you agree to the terms below. Please read them carefully — they define what the calculators can and cannot do, and they limit our liability for decisions you make based on the results.
1. Acceptance of Terms
Accessing or using any page of Home Energy Calculators constitutes your acceptance of these Terms of Use and our Privacy Policy. If you do not agree, please discontinue use of the site.
2. Permitted Use
The calculators and surrounding content are provided free of charge for personal, non-commercial, informational planning. You may share screenshots and link to individual calculator pages without restriction. Bulk scraping, automated requests beyond reasonable rates, or republishing the calculator code without attribution is not permitted.
3. No Professional Advice
The site does not provide engineering, electrical, structural, financial, legal, tax, or insurance advice. Calculator outputs are estimates intended to help you frame questions for a licensed installer, electrician, structural engineer, accountant, or attorney — they are not a substitute for any of those professionals.
4. Disclaimer of Warranties
The site is provided "as is" and "as available" without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, accuracy, completeness, or non-infringement. We do not warrant that calculator results match real-world production, runtime, payback, or cost figures for any specific installation.
5. Limitation of Liability
To the maximum extent permitted by law, Home Energy Calculators, its maintainers, and its contributors are not liable for any direct, indirect, incidental, consequential, special, or punitive damages arising from your use of the site or your reliance on its outputs — including but not limited to lost savings, equipment damage, code violations, denied permits, or unsafe installations.
6. Intellectual Property
The original written content, calculator code, and formula documentation on this site are the property of the site maintainer and are made available for personal reference. The "Home Energy Calculators" name and logo are unregistered trademarks of the site. All other trademarks, product names, and logos referenced in worked examples remain the property of their respective owners.
7. Third-Party Trademarks
Tesla, Ford, Hyundai, EcoFlow, APC, Schneider Electric, Powerwall, Wallbox, ChargePoint, Enphase, SolarEdge, and any other brand names mentioned on the site are trademarks of their respective owners. References are made for illustrative comparison only and do not imply sponsorship, endorsement, or affiliation.
8. Changes to These Terms
We may update these Terms of Use at any time. Material changes will be reflected by updating the "Last updated" date at the top of this page. Continued use of the site after a change constitutes acceptance of the new terms.