Check bills, meter data, and panel photos against the charger plan — before you buy gear or commit to a service upgrade.
Ampscale turns the bills, utility data, and panel photos you already have into a conservative headroom range, shows whether managed charging avoids an upgrade, and lists the exact proof an electrician, PE, utility, or permit reviewer will ask for — an NEC-220.87-style load basis you can hand over.
Each added proof point tightens the range and makes the package easier to review.
Find the real peak and the months that set it.
Confirm service size, breaker rating, voltage, and phase.
Compare uncontrolled charging with a managed cap and failure behavior.
Enough practical headroom appears available with conservative margin.
EMS / PCS holds the ceiling — the package needs the cap, sequence of operations, and logs.
Customer-side headroom is not the same as transformer or feeder capacity.
Send the site, project, and best evidence you have. We will return the headroom range, confidence grade, missing proof, and likely approval path.