Charged EVs | inepro Metering’s new devices bring portable on-site accuracy testing to EV charge points
inepro Metering has introduced the Tunkia TE1000 and TE1100, compact portable devices for verifying the measurement accuracy of EV charging points. The testers are aimed at manufacturers, operators, and inspectors who need to confirm that stations are billing correctly.
The underlying problem: EV charging points have no mandatory inspection or recalibration requirements—unlike gas and water meters, which are subject to regular regulated testing. That gap means accuracy errors of 2–5% can accumulate undetected for years. For an operator running a large charging network, that kind of drift across thousands of points adds up fast. Beyond the financial hit, bad readings show up as unexplained billing discrepancies that are typically attributed to hardware or software faults, so the meter itself rarely gets checked.
Eichrecht, the German regulatory standard requiring transparency and non-manipulability in EV charging measurements, is pushing stricter accountability in Germany and is expected to spread more broadly across Europe. inepro Metering says the Tunkia testers are a way to get ahead of that curve rather than scramble when compliance deadlines arrive.
The TE1000 and TE1100 are designed to run on-site verification in a few minutes, combining traceable calibration with automated checks in a single device. Reports generated by the system can support audits, quality control, and certification. inepro Metering says the devices work across the stakeholder chain—manufacturers use them during design validation, operators for ongoing network monitoring, and independent inspectors for third-party audits.
The Netherlands-based company has been making kWh meters and OEM metering solutions for 33 years.
Source: inepro Metering
