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 …

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

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.

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.

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.

Uses local climate data, your roof measurements, current local electric rates and current solar system cost to generate an accurate solar cost and savings estimate, customized for your home.

Design and optimize your solar installation with our comprehensive collection of free online calculators. Whether you’re planning a rooftop solar array, an off-grid cabin, or a commercial solar farm, our tools …

Calculate your daily Solar needs and get recommendations for panels, batteries & inverter—all in one place!

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.

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