Chargers, water heaters, chilled stores and cooling draw when their clocks say, and the clock is usually the evening. We find the loads that can move, set their new hours and interlocks as fixed rules on a controller, and read the export and the evening again.
4 loads, 371 kWh a weekday, into the solar hours. 79% of the array used on site, where it was 63%.
A load can move when something holds what it makes: a tank holds heat, a spare battery set holds charge, product holds its temperature and a facility holds its cool.
The 4 moveable loads at Kestrel Park Distribution, the specimen warehouse in the scrolled story, on a weekday.
Each load is read at its own circuit for a month. At the warehouse, 319 kWh of the 4 loads ran after 4 pm on a weekday, when the array had little left to give.
Forklift chargers are the largest of them. The fleet has a spare battery set for every truck. The spare sets charge at midday and are swapped in at the shift change.
The kWh each load uses stays the same. What changes is the hour it draws them.
The specimen warehouse's June weekday, simulated on its own 15-minute load.
With the 4 loads moved, the noon export falls from 92 kW to 6 kW and the day's export from 470 kWh to 128 kWh.
The evening peak comes down with them, from 139 kW to 93 kW, because the loads that set it are now running under the array.
Each load gets the hours it may run, written as a fixed rule on the controller and signed by an engineer.
If the service would pass 139 kW, the moved loads drop out first. Every action traces to a rule.
Each moved load is read at its circuit, with the month's export, evening import and peak.
We find every load that could move on your boards and read each one at its circuit.
We say what lets each one move: a tank, a spare battery set, the product or the cooling.
We write the schedules and interlocks the controller runs, each one signed by an engineer.
We read the export and the evening again and state the kW and kWh that moved.
Each one with its kW, its hours today and what lets it run in the sun.
Reviewed by an engineerThe fixed rules the controller runs, and the limit at which each load drops out.
Signed by an engineerThe export, the evening import and the peak, every month the rules run.
Read on the panelIt starts from a Self-Consumption Study. What is still exported afterwards is what Battery Sizing reads.
The study's year of 15-minute data, and a meter on each load that could move for a month. The meters come off again at the end of it.
The controller is ours, on your wall, fitted by a licensed electrician. Wattif performs no electrical work, and any wiring a rule needs is made by your electrician.
