Lower the peak at a commercial property.
What Sets the Peak
Cooling is most of a commercial property's demand, so its peak usually comes when the cooling plant works hardest. That can be bringing the floors to temperature after a weekend, or holding them on the hottest afternoon.
In this example the peak is set at start-up on a Monday. Your own 15-minute record shows which interval sets yours.
Find your own peak →Take out of the peak
The facility's dayWhat lands in the peak
440 kWThe month's peak, as billed
How We Bring the Peak Down
- 01Read 12 months of interval dataYour utility's 15-minute demand for the last year, with the weather for the same period. The interval that set each month's charge is marked, and so are the days close behind it.
- 02Log the key circuitsCurrent loggers on the circuits that feed the largest loads, for 4 to 8 weeks in the season the peak falls in. Each load's share of every peak interval is measured.
- 03Design within each load's limitsEach load's limits are recorded before anything is designed. The design is simulated on your measured year before anything changes on site.
- 04Run the control and meter the resultA licensed electrician fits the controller and any relays or drives. The control runs on site, and each month's peak is metered on the panel.
Chillers30 kW
Air handlers24 kW
Water heating12 kW
Worked example: an office property of six floors. Your own peak is read from your utility's 15-minute record.