The basic principle of calibration law refers to verifiable measurement accuracy, i.e. customers only pay for what they receive. When charging electric vehicles, customers can thus check before billing whether they are being charged for the correct amount of energy and whether there are any inaccuracies in the billing. Furthermore, it is ensured that the consumption data of the charging stations are not changed before billing (e.g. by the CPO or EMP).
The PTB (Physikalisch-Technische Bundesanstalt) regulates in accordance with the Measurement and Calibration Act (Mess- und Eichgesetz, MessEG) and the Measurement and Calibration Ordinance (Mess- und Eichverordnung, MessEV) that the measured values are determined by a calibrated measuring device and that the data records are stored/processed securely and verifiably.
Securing the right of calibrationThe verification of the data can be done either via online software or via the respective hardware solution on site. Selected charging solutions from Vattenfall InCharge currently offer both variants: