A Group is a related set of measurements, for a example a Building with multiple measurements or a campus with multiple buildings. A Group usually consists of Items, although Groups can consist of other Groups or a mix of Items and Groups.
Typical Group – Electricity, Temperature and Humidity
The most significant use of a Group in BEMS is for associating a Temperature and Humidity with an energy resource to help interpret the pattern in energy use.
The Energy Profile has a Temperature Reference and an Humidity Reference. These are created by building a Group with Electrical, Gas or Water items and Temperature and Humidity Items.
Figure 1.2.8.1 – Energy Profile with Temperature Reference