Solar Tax Credit Calculator

Estimate the federal solar tax credit based on your installed solar energy system cost, eligible add-on costs, and the applicable federal credit rate for the year your system is placed in service.

Solar Net Present Value Calculator

Estimate the net present value (NPV) of a residential or small commercial solar project based on system size, installed cost, annual energy production, electricity rate, discount rate, project life, and utility price escalation.

Solar Loan vs Cash Calculator

Compare the estimated total net cost of paying cash versus financing a solar system with a loan after applying the federal tax credit. The result shows loan cost minus cash cost, so a positive result means the loan costs more overall and a negative result means the loan costs less overall.

Solar Lease vs Buy Calculator

Compare the estimated 20-year net cost difference between leasing and buying a residential solar system by factoring in system size, installation cost, tax credit, monthly lease payment, annual lease escalator, and expected annual utility bill savings.

Solar Break Even Calculator

Estimate how many years it may take for a residential solar panel system to break even based on system cost, incentives, current electricity bill, utility rate inflation, and expected monthly savings offset.

Solar Payback Calculator

Estimate how many years it will take for a solar panel system to pay for itself based on system cost, incentives, annual electricity use, utility rates, and solar production.

Solar Panel ROI Calculator

Estimate the return on investment for a residential solar panel system based on system size, installation cost, electricity usage offset, local electricity rates, and available incentives.

Solar Lease Calculator

Estimate the monthly payment for a residential solar lease based on system size, local electricity rate, monthly usage offset, lease term, and annual escalator.

Solar ROI Calculator

Estimate the return on investment for a residential solar system based on installation cost, annual electricity usage, utility rates, local solar production, and available incentives.

Solar Bill Savings Calculator

Estimate your monthly electricity bill savings from installing solar panels based on current usage, local electricity rates, system size, sunlight conditions, and the share of solar power you use directly in your home.

Solar Savings Calculator

Estimate annual electricity bill savings from installing solar panels based on your monthly electric bill, local sunlight, system offset, installation cost, and available incentives.

Solar Panel Replacement Cost Calculator

Estimate the cost to replace damaged or aging solar panels based on the number of panels, panel wattage, roof accessibility, replacement type, and labor rate. This calculator reflects equipment, removal, installation, and electrical reconnect costs.