Home Energy Calculators

About Home Energy Calculators

Last updated: May 30, 2026

What We Provide

Home Energy Calculators is a free toolkit for practical home energy planning. It helps users estimate solar panel sizing and payback, EV charging time and cost, battery runtime, home backup coverage, generator sizing, net metering savings, and heat pump vs gas comparisons.

The calculators are designed for early comparison and planning, using transparent formulas and user-provided inputs so you can quickly compare solar, EV, storage, generator, and backup scenarios.

How To Use The Results

Use the results as planning estimates when comparing chargers, solar panels, home batteries, portable power stations, generators, heat pumps, and backup power options.

Final equipment choices should also consider product manuals, professional installer advice, utility requirements, local code, weather, roof conditions, and safety standards.