The Solar Calculator

NREL annual solar resource map of the United States

Where are you?

Tap your location on the map.

Choose a spot

Solar resource based on the NREL annual GHI map.

CLICK on the items below that you'd like to power with solar, and watch the number of solar panels change on the Far Right, grow to meet your energy needs.

🔌Plug In Systems typically produce 120V household voltage. These Plug-In-Solar Systems vary in size, but often are 1200W or smaller
Solar panel size

Customize devices