This is the third Lessons Learnt Report from ENGIE’s experience installing electric vehicle (EV) charging stations.
Report extract
There is currently no unified standard in Australia for metering of DC EV Charging Systems (EVCS). The application of metering for EVCS has also been inconsistently applied by site managers and across different site electrical networks. This situation has led ENGIE to reassess and rationalise its application of metering for DC EVCS.
EV charging equipment manufacturers selected for the Future Fuels Program have incorporated MID metering equipment into the EVCS (to comply with European jurisdiction where MID metering is required for revenue metering). ENGIE understands there is currently no requirement for NMI pattern and verification of metering in the EVCS. That said, it is understood NMI is currently considering the trade (revenue) measurement policy for EVCS going forward. This may include the alignment of policy with OMIL standards (which governs the MID certification).
Furthermore, sites which operate an embedded network may require the electricity supply to its tenants to be measured with NMI pattern meter. The connection of EVCS to the embedded network may be treated as a tenant (trade) and thus NMI pattern meter would be required to be installed upstream of the EVCS (at the supply connection point).
