EVSE SERVICES

EV Charger (EVSE) Testing & Conformity Assessment

Testing and conformity assessment for AC and DC EV Supply Equipment

AC CHARGING

Testing and conformity assessment of alternating current EV Supply Equipment.

DC CHARGING

Testing and conformity assessment of direct current EV Supply Equipment.

LEGAL METROLOGY

Assessment against OIML G22, the MID and German Eichrecht requirements.

Legal metrology for EV Supply Equipment

NMi provides independent testing, evaluation and conformity assessment of AC and DC EV Supply Equipment against applicable legal metrology requirements.

The assessment covers the complete measuring system, from the electricity meter to the software that records and presents the billed quantity, so that the energy billed matches the energy delivered.

Assessed against OIML G22, the MID and German Eichrecht (MessEG & MessEV).

Navigating an evolving regulatory landscape

EV charging systems are subject to international, European and national requirements which continue to evolve.

NMi actively contributes to OIML, WELMEC, IEC and CENELEC, providing manufacturers with technical expertise grounded in both current requirements and future developments.

International

OIML G22

International framework for EV charging measurement systems.

European

MID

European legal metrology framework for measuring instruments.

European standardisation

prTS 50732

European standardisation for EV charging measurement systems.

Germany

German Eichrecht

National legal metrology requirements under MessEG & MessEV.

Accessing the German EV Charging Market

Charging stations used for billing in Germany require conformity with German legal metrology requirements. As a Notified Body for MessEG & MessEV, NMi supports manufacturers through the conformity assessment process.

  • Notified Body for MessEG & MessEV
  • Conformity assessment for AC and DC systems
  • Applied technical rules REA 6A / PTB-A 50.7
  • Supported by accredited testing capabilities
  • Guidance through the approval process

Testing EV Supply Equipment

Evaluate the full charging system from the measuring part to the vehicle interface and backend communication.

Key testing areas

  • AC/DC meter testing
  • Measurement system
  • Software & communication
  • Integration & interoperability
  • Conformity assessment

Latest EV charging insights

Technical articles, webinars and updates on EV charging measurement requirements.

Technical insight

How OIML G22 is shaping harmonised EV charging requirements

From national approaches to OIML G22, the amended MID and prTS 50732, and what convergence means for product and certification planning.

Read the technical insight →

White paper

Legal Metrological Infrastructure for EV Charging Systems

The building blocks that make billed charging energy trustworthy, from type approval to verification in the field.

Download the white paper →

Training

Legal Essentials for EV Charging Systems: Your Path to Compliance

A practical introduction to the requirements that apply to EV chargers used for billing, and how to meet them.

Explore the training →

Remon Krist 

Sales Manager New Business

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+ 31 88 636 2209
sales@nmi.nl

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