(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.
The electricity consumption of a ceiling fan ranges widely depending on the design and the speed setting of the fan. When set at low speed, fans use between 15 and 30 watts, and at high speed, they consume between 50 and 100 watts; energy usage of about 40 watts at medium speed is typical. central air conditioning unit consumes much more electricity than even several ceiling fans combined; typical central AC energy consumption ranges between 2,000 and 5,000 watts per hour.