An Item is a single energy resource. There are 5 energy resources in the BEMS:
o Electricity
o Water
o Gas
o Temperature
o Humidity
Electricity has potentially 5 measurements: Kilowatt-hours, KVARH, Max Demand, Kilowatts and Load Factor.
Water has a single measurement: Flow in cubic meters (m3).
GAS has a single measurement: Flow in cubic meters (m3).
Temperature has a single measurement, in Degrees Celsius. This is often used as a reference for other energy sources, and often grouped with electricity, gas and water to help interpret higher or lower energy used based on outside air temperature or zone temperatures.
Humidity has a single measurement, in Percent Relative Humidity (% RH). This is often used as a reference for other energy sources, and often grouped with electricity, gas and water to help interpret higher or lower energy used based on outside air humidity or zone humidity.