TechnicalUp to date · Jan 15, 2026

AC (Alternating Current)

Electricity that periodically reverses direction. Standard household electricity in the US is 120/240V AC.

Related Terms

DC (Direct Current)

Electricity that flows in one direction. Solar panels produce DC power, which must be converted to AC for home use.

Inverter

A device that converts direct current (DC) electricity from solar panels into alternating current (AC) electricity used by your home.