Benchmarking in the world of energy efficiency refers to a method we can use to evaluate and compare the energy performance between or within processes or buildings by studying the usage or costs thus allowing you to determine how well you are doing, and look into and/or make improvements to any potential issue(s) or problems(s) that you could be having. Such comparison could be internal (between internal entities of the organization) or external (between different organizations subjecting to confidentiality restrictions since certain organizations are not able to reveal such data due to its own policy). Energy benchmarking can also be used to help in prioritizing energy saving projects too.
What Are The Metrics That Are Typically Used?
1) Both Electricity and Gas: kBtu/SF/year – also known as energy use intensity (EUI), is a unit of measurement that is used to measure the amount of energy consumed in one year (kBtu) by a building in relation with the size of the building (SF).
2) Electricity: kWh/SF/year – average kilowatt hours per square foot of a building in a year.
3) Natural Gas: Therm/SF/year – average therms per square foot of a building in a year. Therm is a non-SI unit of heat energy that is equivalent to 100,000 BTUs (British Thermal Units).