Renewable Energy Glossary

by Dan Lepinski

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Alternating Current ("AC") 

Electric current that reverses direction 50 or 60 times per second (depending on the country).


Electrical current. A measure of the quantity of electricity flowing in a circuit. (Think of "Amps" as if they were gallons of water, and "Amps" are the gallons flowing per minute through a pipe.)


Measure of the amount of electrical current flowing for a period of time.