What school EV charging involves

An EV charger is a big continuous load on a panel that was never asked for one. The work starts with finding out what is actually there. With school EV charging, that means looking at the existing wiring, the panel capacity and whatever the last person left behind.

Plenty of calls end with a smaller bill than people braced for. A tripping breaker is often a single bad device, and a dead outlet is often a loose wire two boxes away.

Where this comes up

Level 2 at home, DC fast and fleet charging for business and municipal sites. Most of these calls come from Des Plaines and the surrounding suburbs, but we take them anywhere in our service area.

Older buildings in this part of Illinois were wired to a different standard. Aluminum branch circuits, knob-and-tube in the walls, panels that were full the day they were installed. Those turn up constantly and they change the job.

How we do it

We show up when we said we would and explain the work before we start. Permits get pulled where they are required, and the job is not finished until it passes inspection.

What we see go wrong

Most of the bad work we find was not done by an electrician. It was a handyman, a previous owner or somebody who watched a video. Backstabbed outlets, undersized conductors, missing grounds, neutrals and grounds bonded in a subpanel, junctions buried inside a wall with no box.

None of that is visible from the living room. It surfaces during a remodel, a home inspection, or the day a breaker stops holding.

What happens when we are done

When the work wraps up, you get a short rundown in plain language of what we found, what we fixed, and anything that can wait but belongs on your list. The panel gets labeled and the work area gets swept before we go.

Where a permit was pulled you get the closed inspection. Where documentation exists, you get it.

The inspection is the point

An inspection is an independent check that what went behind the drywall matches what was supposed to. Work that passes has been verified by somebody with no stake in the invoice.

That is also why we would rather you hire a licensed contractor than the cheapest number you can find. Unpermitted electrical work is a problem you inherit, and it usually surfaces at the worst moment.

Grounding and bonding

Grounding is the part nobody sees and the part that decides whether a fault clears safely. The ground path has to be continuous and low-impedance from every device back to the service, and the neutral and ground can only be bonded together in one place.

A neutral bonded to ground in a subpanel is one of the most common defects we find. It works right up until it does not, and then it puts current on metal that people touch.

What to do before we arrive

If the panel itself is hot, buzzing or smells, do not touch it at all. Shut off the main only if you can reach it without leaning on the box. Otherwise keep clear and tell us that when you call.

Write down when the problem started and what else was running at the time. Those two details save a lot of searching.

Load calculation comes first

An EV charger is a continuous load, which means the code requires the circuit to be sized at 125 percent of its rating. A 48-amp charger therefore needs a 60-amp circuit, and that has to fit inside what the service can already carry alongside the furnace, range, dryer and air conditioning.

We run the calculation before anything gets ordered. Sometimes the answer is that the panel takes it as-is, sometimes it needs a load management device, and sometimes the service genuinely needs upgrading first. You get the real answer rather than the convenient one.