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Power Meter Technics · Midrand, South Africa

For thirty years we have done one thing: utility metering.

The instruments, the software, the calibration and the people who run it. We are a South African engineering company, established in 1994, and we have never done anything else — which is why, when a number is disputed, we can follow it from the invoice back to the meter that produced it.

1994

Established

Utility metering, exclusively

109,448

Meters under management

Read every 30 minutes

100

People

Midrand, Cape Town, Durban

1998

Meteringonline launched

Wholly developed in-house

One company, the whole chain — from the meter on the wall to the invoice.

Most of the industry does one part of this. Software vendors buy someone else's meters and hope the data is right. Meter manufacturers ship hardware and leave the billing to somebody else. Reading bureaux do neither and charge for the labour in between.

PMT does all four. Our flagship is Meteringonline — developed in-house since 1998, now handling half-hourly data from more than 109,000 meters. The rest of the business exists to make sure the numbers reaching it are right.

Metering companies don't write billing platforms. Software companies don't understand metrology.

Meteringonline was built by metering engineers, not by a software house adding metering as an afterthought. The distinction shows up where it matters — in how a phasor diagram catches a reversed CT before it becomes a billing dispute, in how a summated account diversifies demand correctly, in what happens when a billing cycle straddles a tariff change.

It is why we are comfortable saying that everything on the bill is considered wrong until Meteringonline proves it right.

Why the data can be trusted

We calibrate the meters ourselves, in our own accredited laboratory.

Billing is only as good as the measurements underneath it. PMT has held SANAS accreditation to ISO/IEC 17025 since 1995 — for calibration on site as well as in the laboratory, and for forensic work where a utility is investigating tampering.

Inside the laboratory
Accreditation
SANAS CAL 043-01-00 · ISO/IEC 17025:2017
Measurement uncertainty
±0.03% — 33× tighter than a Class 1 meter
Traceability
NMISA national measurement standards