What is plant use factor in economics? All Questions › Category: Transmission And Distribution System › What is plant use factor in economics? 0 Vote Up Vote Down CS Electrical And Electronics Staff asked 4 years ago I need short info. 1 Answers 0 Vote Up Vote Down CS Electrical And Electronics Staff answered 4 years ago It is the ratio of kWh generated to the product of plant capacity and the number of hours for which the plant was in operation.