Step 1 · Survey
Board, cable route, available power.
What we do, in detail
Four things, with the available power established before any of them.
Program 01 · Dedicated and protected
Charge point installation
Two things get specified before anything else, and the second is the one nobody asks about. The circuit is dedicated, because a charger drawing its maximum for hours is not a kettle. And the residual current protection has to cope with smooth DC residual current, which can stop an ordinary device operating at all: that means type B, or type A together with six milliamp DC detection in the charger itself. A charger on a shared circuit behind a standard device is cheaper and is not the same installation.
Step 2 · Protection
Type B, or type A with DC detection.
Step 3 · Install
On a circuit of its own.
Step 4 · Inspect
By an accredited body, before use.
Step 1 · Measure
What the building already draws, and when.
Step 2 · Headroom
What is genuinely left for a car.
Step 3 · Modulate
Dynamic where the board allows it.
Step 4 · Check
Peaks reviewed after a month of use.
Program 02 · Where the cost lives
Load management and peaks
A charger that simply takes its rated power whenever a car is plugged in will, sooner or later, do it at the worst possible moment. Dynamic load balancing measures what the rest of the building is drawing and gives the car what is left, which is slower on the few occasions it matters and invisible the rest of the time. Static limiting is a blunter version of the same idea and still better than nothing. Neither of them is a comfort feature.
Program 03 · Codes 43.211 and 43.240
Electrical installation
Most of the avoidable problems in a small installation come from a board that has been extended four times by four people, with no record of what feeds what. So the work starts with establishing that, in writing, and a client ends up with a schedule they can hand to the next person. New or altered work is not commissioned until it has been inspected by an accredited body, which is a legal step and not a formality we can waive for anyone.
Step 1 · Record
What exists, and what feeds what.
Step 2 · Plan
What changes, and what stays.
Step 3 · Work
Carried out and labelled as it goes.
Step 4 · Inspect
Accredited inspection, then handover.
Step 1 · Establish
The connection you actually have.
Step 2 · Requirement
What the plan would need.
Step 3 · Apply
To the network operator, if needed.
Step 4 · Alternative
A design that works meanwhile.
Program 04 · Code 42.220
Connection capacity
A great many charging plans fail on a fact that could have been established on day one: the connection will not carry it. Going from single-phase to three-phase, or raising the connection capacity, means an application to the distribution network operator, which sets both the cost and the timescale. Neither is ours to promise. What we can do is find out first, tell you plainly, and design around what exists if waiting is not acceptable.
A car arriving, or a board nobody understands?
A free first survey, with no obligation. If your connection will not carry what you want, you will hear it first rather than last.