The Pacific Northwest (PNW), sometimes referred to as Cascadia, is a geographic region in western North America bounded by the Pacific Ocean to the west and (loosely) by the Cascade Mountain Range on the east.
Mean time between failures (MTBF) describes the expected time between two failures for a repairable system, while mean time to failure (MTTF) denotes the expected time to failure for a non-repairable system. the MTBF is the sum of the operational periods divided by the number of observed failures.
1 To estimate electricity cost, convert motor horsepower to kilowatts and multiply by run time. 2  A more precise calculation would include input volts, amps, and power factor.  Convert horsepower to cubic feet per minute (CFM) to calculate running cost by air volume.