Assuming that the Demand Interval property is set to 15 minutes and the Percent Interval Elapsed property is set to 93%, the system calculates demand based completely on recorded demand readings for the current minute and the 14 previous minutes. Following, is an example of using all recorded values and no projected values.

minutesElapsed = 15 * 93.33 / 100 = 14
minutesRemaining = 15 - 14 = 1
calculated total = (current Power Input * minutesRemaining)
	+ Power Input from each minutesElapsed interval
calculated total = (600 * 1) + 600 + 600 + 600 + 600 + 600
	+ 600 + 600 + 600 + 600 + 400 + 400 +400 + 400 + 400 = 8000
projectedDemand = calculated total / (minutesElapsed
	+ minutesRemaining)
projectedDemand = 8000 / (14 + 1) = 533

In this case, there would be no projected demand. Actual demand is used in this calculation.

This example assumes that the Power Input is currently 600 and has been at that level for the previous nine minutes, prior to that, the value was 400.

By setting the Percent Interval Elapsed to a value that corresponds to the last minute of the Demand Interval, the projected output is a sliding window average of the minutely recorded Power Input values.