3.5 Electrical Power Systems Electrical power system maintenance programs will increase both efficiency and reliability.
Electricity is the largest energy source in most facilities.
Electric utility bills include both energy charges in kilowatt-hours and power demand charges in kilowatts. Rates may vary by season and time of day. Utilities penalize facilities with low power factors that require the utility to provide power-factor compensations. In the broadest sense, power systems include HVAC equipment, motors, lighting, kitchen appliances, water heaters, and plugloads that deliver power to end-users. The focus of this Section is on distribution components such as transformers, switchgear, wiring, and other power system components.