Implementation Guide Eichrecht Working Document

Calibration law (Eichrecht) sets high demands on both the accuracy of measurement and the verifiability of measured values used for billing. In the perspective of charging processes for electriccars, this means that during the charging process, the end user of a calibrated measuring device must be able to review the charging progress, and at the end of the charging process the customermust be able to check the measured value of charging consumption. As users get a bill/receipt of their charging session geographically and timewise separated from the charging session itself it isnot possible for them to do this verification directly onsite. Therefore it must be ensured that the measured values have not been falsified. The implementation of this requirement is not easy dueto the multitude of roles (CPO, roaming, MSP, manufacturer,...) and actors. In the first step, the SAFE initiative developed a proposal for the signing of measured values within the measuring cap-sule of the charging pole, as well as the Transparenzsoftware for the subsequent verification of these same measured values. This has now been established as a standard in Germany.

This document provides guidance on billing based on metered data that is billed between a Charge Point Operator (CPO) and a Mobility Service Provider (MSP) and/or Payment Service Provider(PSP). It covers various areas of application, including customer front-ends, roaming interfaces, and data storage.