Calculate Solar ROI in 30 Seconds

Free energy calculators for homeowners making solar, battery, and home energy decisions. Get instant answers backed by industry formulas.

Featured Calculators

Choose from our suite of energy calculators to get instant answers for your specific question.

Calculate your solar panel return on investment over 10-30 years with detailed financial analysis

Calculate how long your home battery can power essential appliances during an outage

Calculate your total home energy consumption by appliance type

Calculate electric vehicle charging costs at home vs gas car fuel costs

Our calculators use real-world data and proven formulas to give you reliable estimates for solar ROI, battery sizing, and energy costs.

Make informed decisions about energy investments. Calculate payback periods, compare costs, and find the best solutions for your home.

No signups, no fees. Get instant results with our simple calculators designed for homeowners, not engineers.