I have a design conditon where I have to decide whether to use electric or steam driven air compressors.
The requirement for electric is 300 250HP (200kW) motors that will move 1200 CFM at 90 PSIg. If I run them 24/7/365 at $0.08/kWh (an annual average), the cost is 200*24*365*0.08 = $140k/yr...