Smart Buildings Systems for Architects, Owners and Builders

The EPMS monitors the electrical distribution system, typically providing
data on overall and specific power consumption, power quality, and event
alarms. Based on that data the system can assist in defining, and even initiat-
ing, schemes to reduce power consumption and power costs. The schemes
“shed” power and are triggered by predetermined thresholds such as certain
levels of power demand or a particular time of day when resource consump-
tion is high. The EPMS can manage event alarms, calculate usage trends, track
and schedule maintenance, troubleshoot, and “bill back” metered power usage
to specific users or tenants.
Typical systems monitor the power service entrance of a building or cam-
pus, switchgear, generators, network protectors, switchboards, panel boards,
uninterruptible power supplies (UPS), emergency power generation, and more.
The components of an EPMS include monitoring and control devices
(Fig. 5.1).

EPMS Server and

Workstation Network Room

UPS

Power

Distribution

Unit

Switchgear TransferSwitch SwitchgearBuilding

ETHERNET NETWORK

Motor

Control

Center

Distribution

Generator Panel Switchboard

Power Utility Entrance

and Switchgear Building Switchgear Room

Network

Protector

Distribution

Panel

Submeter Control PanelLighting

Local

Panel

Typical Building Floor

Distribution

Figure 5.1 Electric power management system.

60 Smart Building Systems for Architects, Owners, and Builders