Compressors' share of the electricity bill

Value	12 percent
Default	12 percent
Low	8 percent
High	18 percent
Source	Our estimate, from the compressors' rated power in the plant's records
Notes	The records list two compressors of 75 horsepower each, about 112 kW together. Over the 6,000 hours per year the presses are scheduled, that is about 11 percent of the bill at 10 cents per kWh. At full load a compressor draws a little more than its rating, so we count 12 percent until the hours on each panel are read.