Metered load study · NEC 220.87 · on-site metering

No records? We measure it.

The only measured path for feeder and sub-panel additions, and for facilities without usable records. A licensed electrician fits the loggers in under an hour, they record for 30 days at your peak season, and a sealed determination follows once we collect them.

Engineering reportPage 1 of 12

Metered Load Study, Panel A

30-day on-site metering · NEC 220.87
Measured peak
289.4 kVA
Recording
30 days
Verdict · NEC 220.87

Measured peak 289.4 kVA. The service can take the new load.

Reviewed and sealed by a licensed Professional EngineerDay 36

Utility records see the whole service. Your addition lands on one feeder.

  1. 01

    Your utility bill sees the whole service, never one panel.

  2. 02

    So we clamp the exact feeder the load is going on, for 30 days.

  3. 03

    The install is checked on the visit, because a logger only reads back at the end.

  4. 04

    A sealed determination follows. About five weeks end to end.

  1. 01Send photos + drawings
  2. 02Loggers fitted, panel stays live
  3. 0330 days, then we collect
  4. 04A licensed engineer seals
  5. 05Permit package

When is this ideal for you.

Order This Study →

The addition lands on a sub-panel

Utility bills only see the whole service. We meter the specific panel the load is going on.

No usable records

A new tenant, a master-metered space, or an account without demand metering. 30 days of measurement creates the record the code accepts.

The stakes justify the wait

The upgrade quote is $60,000 and the utility data is ambiguous. A month of measured truth at the exact panel settles it.

Metered Load Study, NEC 220.87 | Wattif