The Importance of Load Factor Reduction and Real-Time Energy Monitoring Harnett County Schools

Terms: kW & kWh Demand (kW) – the rate at which electricity is consumed. Energy (kWh) – amount of electricity consumed over a period of time.

Hose Analogy

Progress Energy TOU Rates (Summer)

Progress Energy TOU Rates (Winter)

Coats-Erwin Middle

Load Factor

Colorado Springs Utility

Billing Period (Previous 12 Months)kWh ConsumptionkW DemandMetered Svc Charges Read DateDaysRateActual*Billing*DailyActual*Billing*L F*Monthlyper kWh 11/6/200928SGS-TOU79,000 2, %$7, ¢ 10/9/200929SGS-TOU94,400 3, %$8, ¢ 9/10/200930SGS-TOU106,200 3, %$10, ¢ 8/11/200932SGS-TOU49,600 1, %$5, ¢ 7/10/200931SGS-TOU60,600 1, %$7, ¢ 6/9/200932SGS-TOU99,400 3, %$8, ¢ 5/8/200929SGS-TOU78,600 2, %$7, ¢ 4/9/200930SGS-TOU83,600 2, %$7, ¢ 3/10/200929SGS-TOU81,000 2, %$7, ¢ 2/9/200931SGS-TOU82,000 2, %$7, ¢ 1/9/200932SGS-TOU75,600 2, %$6, ¢ 12/8/200832SGS-TOU80,000 2, %$6, ¢ Total ,000 $90, Maximum32 106,200 3, %$10, ¢ Average ,833 2, %$7, ¢ Minimum28 49,600 1, %$5, ¢

Example: Fossil Ridge High (Fort Collins, CO)

Typical Lighting Load Profile

Colorado Springs School District “ One of the primary focuses of the Performance Contract executed at Colorado Springs D11 was limiting facility demand at 4 sites to ensure that the schools could take advantage of the lower rate class. The real-time energy monitoring upgrades on-site allow the district energy manager to ensure this strategy is effectively executed. An added benefit of the technology is the ability to better diagnose malfunctioning equipment or maintenance needs in a proactive manner. ”