Solar Tools & Calculators

Free tools to help you plan and optimize your solar installation.

Roof Size Calculator

Enter your available roof area and find out how many panels fit, which models maximize your power, and estimated annual production.

Estimate your total system cost, federal tax credit savings, annual electricity savings, and payback period by state and panel tier.

Select your appliances and battery setup to find out how many hours your home battery will last during a power outage.

Calculate how fast solar panels will pay for themselves based on your state, electricity bill, system size, and battery choice.

Select your essential appliances and desired backup duration to find the right battery system and how many units you need.