(Redirected from EFI System partition) The EFI system partition (ESP) is a partition on a data storage device (usually a hard disk drive or solid-state drive) that is used by computers adhering to the Unified Extensible Firmware Interface (UEFI).
As much as 80 to 90% of the electrical energy used by an air compressor is converted to heat. A properly designed heat recovery unit can recover 50 to 90% of this heat for heating air or water.
Using our EXAMPLES givenâ¦you can see how to figure your annual electrical costs: 27.5 hp x .746* x 2600 hours x $.12 Ã· .90 = $7111.87 per year to run your air compressor. EXAMPLE ANNUAL ELECTRIAL COST FOR COMPRESSED AIR = $7111.87.