Estimates the energy production and cost of energy of grid-connected photovoltaic (PV) energy systems throughout the world. It allows homeowners, small building owners, installers and manufacturers to …

Calculate how much power you need with these solar calculators to estimate the size and the cost of the solar panel array needed for your home energy usage.

Use our solar panel calculator to find your solar power needs and what panel size would meet them.

Use this solar panel calculator to quickly estimate your solar potential and savings by address. Estimates are based on your roof, electricity bill, and actual offers in your area.

Project Sunroof is a solar calculator from Google that helps you map your roof’s solar savings potential. Learn more, get an estimate and connect with providers.

Dec 13, 2022 · Solar panel cost and savings calculator showing how many solar panels your home needs and likely cost based on current solar system prices, savings & payback period.

Use our solar panel calculator for commercial systems. Estimate panels needed based on energy use, sun hours, and efficiency for accurate results.

Jun 14, 2025 · Estimate solar panel size, energy output, savings, and environmental impact with this easy-to-use solar energy calculator for homes and businesses.

Apr 27, 2025 · A powerful solar panel calculator to estimate energy production, system size, cost savings, battery requirements, and ROI based on your location, roof, and energy usage.

Use this solar calculator to quickly estimate your house electricity bill, solar potential and savings based on our simulation model.