Wire Size

Find the right wire thickness for your load and distance.

Measure from your panel/battery to the device — not round-trip.

Design Your Own System

Load Calculator

Find out how much power your appliances use.

Solar Panel Sizing

Calculate how many panels you need.

Battery Runtime

See how long your battery lasts.

Wire Size

Find the minimum gauge for your load and length.

Voltage Drop

Check voltage loss across your wire runs.

Breaker / Fuse

Get the right breaker size for any circuit.