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Duke <br />+I Energy <br />3.2 Demand profiles <br />Information from a Duke Energy interval date meter is captured and brought into an <br />online tool called Energy Profiler Online (EPO). Using EPO, average electrical demand <br />and daily demand profiles are compiled from a metered period reflecting winter and <br />summer months and are presented below for RCCC South campus. <br />Observations and insights regarding the EPO generated profiles are as follows: <br />• Figure 8 shows the average daily load profiles for weekdays and weekends <br />from February 2012 through April 2012, and the load profile for the highest <br />peak on record during the metered period. Average demand profiles confirm <br />typical hours of operation from 8 AM - 8 PM. Morning start -up appears to <br />occur at approximately 7 AM and peaks at 11 AM at 350 kW. <br />• Average weekend demand is relatively flat around 225 kW. Ideally, minimums <br />should be around 50% of the peak; however, weekend demand is likely <br />attributed to student events. Opportunities to further reduce load during <br />unoccupied times should be explored. <br />• Figure 9 shows the daily demand load profiles during March 2012. Demand <br />consistently peaks at 425 kW, dropping to lows of 250 kW on nights and <br />weekends. The average low of 200 kW during the week of 3/2 through 3/11 is <br />likely explained by spring break. <br />• Figure 10 displays average monthly demand and consumption for a period <br />from February through April 2012. This data was limited by the February <br />installation of the demand meter; however trends reveal that there is an <br />opportunity to further employ strategies to reduce demand during unoccupied <br />hours and non -event schedules. <br />kW <br />450.0 <br />400.0 <br />350.0 <br />300.0 <br />250.0 <br />200.0 <br />150.0 <br />104.4 <br />Average Weekday <br />Average Weekend <br />Peak Day: 04!041201 2 12:30 <br />50.0 <br />0.0 <br />0:00 <br />4:00 5:00 12:00 115:00 20:00 24:00 <br />Time (Hours) <br />Figure 8: Average daily load profile. <br />Rev A 2012 -05 -15 <br />Page 14 <br />Final Draft <br />G -2 Page 338 <br />