noun
electricity bill; electric bill
Refers to the cost or bill for electricity usage, typically a monthly utility bill.
今月の電気代が高かった。
This month's electricity bill was high.
電気代を節約するためにエアコンを消した。
I turned off the air conditioner to save on the electricity bill.
ガス代 is the gas bill, another common utility bill.
Compound of 電気 (electricity) and 代 (charge, fee).