Disclaimer

Last updated: 2026-10-25

Estimates, not advice

The calculators and guides on Renewable Energy Tools provide general information and estimates. They are not electrical, engineering, financial, tax or legal advice. Real results depend on your equipment, location, weather, utility tariff and installation.

Electrical safety

Solar arrays, batteries, inverters, EV chargers and generators involve dangerous voltages and currents. Installation and wiring should follow your local electrical code (in the US, the National Electrical Code as adopted locally) and be done or inspected by a qualified, licensed professional. Never rely on a calculator alone to size conductors, overcurrent protection or grounding.

Prices and statistics

Electricity prices, equipment costs, incentives and energy statistics change over time and vary by location. Each page states the date and source of its figures. Check current prices with your utility and suppliers, and current incentive rules with the relevant government agency, before making decisions.

Third-party information

We cite government agencies, research organisations and manufacturers. We are not responsible for errors in those sources or for the content of linked sites. Product names are used only to describe products; we are not affiliated with or endorsed by their makers.

No liability

To the fullest extent permitted by law, we accept no liability for loss or damage arising from use of this site. See our terms and conditions.