Terms of use

Last updated: 27 July 2026

By using WattPayback you agree that the calculators and articles are provided for general information only. They are estimates based on assumptions you enter or leave at defaults.

WattPayback is not a licensed energy adviser, installer, engineer or financial adviser. Results are not a quote, offer or guarantee of savings, payback or system performance.

To the fullest extent permitted by law, the operator is not liable for decisions you make using these tools. Always obtain a site-specific survey and independent advice before spending money.

These terms are governed by the laws applicable in the operator's country of residence, without regard to conflict-of-law rules.