(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.
In many cases, the cost of electricity over two years exceeds the purchase price of the compressor itself. Annual maintenance costs are an additional 10% or more of the initial compressor cost. Compressed air is necessary for many plant processes, but it is an inefficient source of energy.