A capacity report counts chargers at the current they are allowed to share, which is far less than they would draw with every bay in use. A controller on the charger feeder makes that limit true every day, and the service never sees more than the report counted.
6 chargers share 80 A between them. In 12 months the service never read more than 316 A.
Six chargers at full rate draw more than most services have spare. Counted at a limit a controller enforces, they fit, and the controller is what the inspector accepts for it.
Parkfield Square, the specimen mall in the scrolled story. Its own load, 6 chargers added unmanaged, and the same chargers held to 80 A.
6 chargers with every bay in use would draw 192 A. Shoppers plug in through the afternoon, when the mall is already at its peak, so unmanaged they push a 400 A service to 427 A, over its rating for about 3 hours a day.
Held to 80 A between them, the same afternoon peaks at 316 A. Each car charges a little more slowly while the car park is full, and the capacity report's count is what the panel carries.
Fixed rules, written by an engineer for this facility, and nothing that learns or guesses.
The six chargers share 80 A between them. A full car park charges each car more slowly; an empty one charges the first car at full rate.
Whatever the bays want, the chargers never draw more than 80 A together, so the service never sees more than the capacity report counted.
The recovery's own rule stays: the rooftop units start one at a time, so the mall's peak stays where the recovery left it.
The controller is ours. It sits on the facility's wall beside the charger feeder, fitted by a licensed electrician, and Wattif commissions it, keeps it running and stands behind the limit. Wattif performs no electrical work.
Every action it takes can be traced to a rule an engineer wrote and signed. It acts only on circuits that are on the panel record, and a month in which it intervened is reported as one.
We start from the capacity report, which counted the chargers at their limit and said they fit.
We overlay the chargers on the facility's own measured day, unmanaged and held, and show where the service lands under each.
An engineer writes the rules the controller runs: share the current, hold the limit, stagger what starts together.
We read each month's highest 15 minutes on the panel, with the chargers' share of it, against the rating.
The charger feeder and every circuit the controller can reach, with the limit the capacity report counted.
From the panel recordWhat the controller does, in which order, on which circuits, written and signed by an engineer.
Fixed rules, no optimizerThe service's highest 15 minutes every month, the chargers' share of it, and any month the controller intervened.
Read on the panelLoad Management starts from a Capacity Determination Report, which is where the limit comes from.
A capacity report that counted the new load at a limit, and a panel record naming the circuits the controller may act on. The chargers or heat pumps have to accept a shared limit, which most current equipment does.
A month's peak is read from the service, so the result is measured and never modelled. Where the facility cannot accept a limit at all, the capacity report says so and the answer is the service upgrade.
