Currently, (almost) all new charging stations are equipped with the ISO15118 protocol that allows bidirectional charging (e.g. vehicle-to-home or vehicle-to-grid). But bidirectional charging is not only dependent on the charging station, also on:
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Your vehicle
Only a handful of EVs today support bidirectional charging. Because of the battery warranty and the (lack of a) legal framework, car manufacturers are not yet eager to standardise this. Besides, the car must also be equipped with the required technology. -
Your home installation
Bidirectional charging requires an inverter to convert the DC power from the vehicle battery to AC. Depending on the use case, an additional home battery inverter may be necessary. For V2G, energy flows must be accurately measured, separated, and settled. This requires a digital meter that can register grid injection. -
Energy management system (EMS)
To manage bidirectional charging efficiently and safely. -
Your grid operator and energy supplier
Bidirectional charging affects the grid. Technical implications are still uncertain. Currently, there is no standard mechanism for billing energy fed back via an EV, nor integration into capacity charges or injection tariffs.
Assuming all the above conditions are met, today it is not possible to charge bidirectionally with a charging station provided by your employer. For the following reasons:
- Charging station ownership
The station is not your personal property. Therefore, certain features like bidirectional charging cannot be activated at will. - Service agreement
The current service agreement between us and your employer does not include support for bidirectional charging. This functionality requires additional technical infrastructure and contractual arrangements, which are not yet in place. - Energy use and reimbursement
The electricity delivered through the station is paid for by your employer. You receive a monthly reimbursement for this. This energy is intended solely for professional use and may not be used for private purposes (such as feeding back to your home) or for commercial use (such as selling electricity back to the grid). - Legal framework
At present, there is no clear legal framework that permits or regulates bidirectional charging in this specific context. As a result, we cannot offer this service in a compliant and fiscally correct way.