Energy & Green Calculators
Making the switch to renewable energy or electric vehicles is one of the best financial and environmental decisions you can make — but only if the numbers work for your situation. Our free energy calculators help you estimate real savings, payback periods, and total costs before committing.
Whether you're considering solar panels, comparing EV vs gas costs, evaluating a heat pump upgrade, or auditing your home's energy efficiency, these tools give you the data to make confident decisions.
Solar Panel ROI Calculator
Calculate payback period, 25-year savings, and ROI for a residential solar panel system.
EV vs Gas Cost Calculator
Compare total ownership costs between an electric vehicle and a gas car over 5+ years.
Heat Pump Savings Calculator
Estimate annual savings and payback when switching to a heat pump from gas, oil, or electric heating.
Home Energy Audit Calculator
Score your home's energy efficiency and get prioritized improvement recommendations with ROI estimates.
EV Charging Cost Calculator
Calculate the cost per charge, cost per mile, and monthly charging expenses for your electric vehicle.