V2G-Clarity: Executive Summary for White Paper
Executive Summary
The complexity surrounding calibration law regulations, commonly referred to as ”Eichrecht” in Germany, for electric vehicle (EV) charging infrastructure presents new challenges for the e-mobility industry. This white paper aims to equip major stakeholders – charging station manufacturers, charge point operators (CPO), and e-mobility service providers (EMSP) – with a background of the current regulatory landscape and legal obligations of each stakeholder, as well as a framework to establish a transparent and tamper-proof billing process for vehicle owners using the charging stations. Overall, the current regulatory landscape has made it harder for stakeholders, with a domino effect on hotels, fast-food, retail chains and even car dealers, to make a case for investment in EV charging infrastructure. Recent amendments to the German Measurement and Calibration Law (MessEG) requires stakeholders to provide accurate measurements around the supply of electricity, time taken to charge an EV, and data security. Recent laws have also come into effect around time-based billing, where pricing models must be based on kWh instead of a session fee, which otherwise may result in costly fines if not complied. Yet, monthly or yearly flat rates are currently still considered valid time-based pricing models.
This white paper breaks down the specific legal obligations of each key stakeholder as described above according to the following parameters:
Meter – including display, supplementary systems such as a computer or smartphone app, and on-site maintenance.
Data Security – including digital signatures, data storage, and access.
Invoicing and billing – including tariff components, charging session details, and verification of the data records’ authenticity and integrity.
Unfortunately, calibration law fails to offer any implementation recommendations to ensure that charging systems are in compliance. This paper continues to provide a framework for key stakeholders to implement charging infrastructures that satisfies the regulatory criteria, based on best practices. This is mapped out in three solutions:
Transparency Software – a workflow that allows the customer to verify meter values independent of time and location without depending on a mobile application.
The ”innogy” Solution – a complete system certification with a mobile application.
Storage and Display Modules – a memory and display module installed in the charging station.
Finally, any implementation of the above solutions should be tested and certified by the German federal calibration authority Physikalisch-Technische Bundesanstalt (PTB). Understanding the lay of the land of calibration law and adopting the solutions presented in this paper will set up stakeholders with a successful EV charging system.
Read the original whitepaper here
