About SolarPanelMath

Our Mission

SolarPanelMath was built to help homeowners make informed decisions about going solar. We provide free, accurate calculators that estimate system size, cost, savings, and payback period — all without requiring personal information or sales calls.

How Our Calculators Work

Our calculations use publicly available data including average peak sun hours by state, electricity rates, the 30% federal Investment Tax Credit (ITC), and industry-standard system pricing ($2.50-$3.50/watt installed). All calculations happen in your browser — we never store your data.

Disclaimer

SolarPanelMath calculators provide estimates based on averages and mathematical formulas. Actual costs, production, and savings vary significantly based on roof orientation, shading, local incentives, installer pricing, and other factors. Always get multiple quotes from certified solar installers before making a purchase decision.