Solar Calculator
Find out exactly how many solar panels you need, plus optional battery storage, based on your energy usage and location. Use the slider below to start.
Use your average monthly bill (e.g., yearly total ÷ 12)
$300
7.5 kW
Min 7kW for Powerwall
0x0W
100%
Currently, estimates are based on state-level sun hours. Zip code-level precision is coming soon!
Sunlight matters! South-facing roofs are generally the best, followed by east and west. If your roof faces multiple directions, choose "Mixed." This information helps us calculate the appropriate system size for your home.
Panel wattage indicates power output strength. Choose higher wattage for limited roof space or premium performance, lower wattage if space isn't restricted.