Do You Have Capacity for EV Chargers? Probably Not Without a Demand Study.
Most commercial buildings have less spare capacity than the breaker schedule suggests. A short demand study saves a service upgrade you didn't budget for.
We work commercial electrical full-time, and that means we see the same problems repeat. This article walks through what we've seen on recent jobs, what we tested, and what we ended up replacing.
What it looks like in the field
The symptom usually shows up at the panel before anyone notices a problem with the load. By the time tenants complain, the issue has been measurable for weeks.
How we diagnose
Meter readings before assumptions. IR scans are useful but they aren't the whole story — we always confirm with a torque audit and ground-resistance measurement before we recommend replacement.
What we replaced
Across the last 200 commercial service calls in this category, the most common parts were breakers (specific revisions), connectors, and contactors on RTU disconnects. We carry those on the truck.