Volkswagen has announced that its ID. family of EVs will now offer bi-directional Vehicle to Home (V2H) charging – allowing them to both draw power from the grid, and feed power back when necessary.

The technology featured in the OEM’s electric vehicles is powered by a home power station and Volkswagen’s integrated Home Energy Management System (HEMS) developed with HagerEnergy, which allows users to maximize the use of home solar panels. The bidirectional charging solution relies on CCS (Combined Charging System) DC charging standard, and is aligned with the ISO standard 15118-2 for bidirectional charging.

A demonstration of the new V2H functionality was conducted through a pilot project launched by Volkswagen and HagerEnergy in Sweden. In the demonstration, a housing estate sources its power from a combination of vehicles equipped with the charging technology, and the corresponding charging infrastructure. The pilot works to show the potential of Volkswagen’s V2H technology, and how it can facilitate a more sustainable future.

The OEM confirmed that its models equipped with the 77 kWh battery capacity option, and updated to ID. Software 3.5, can utilize bidirectional charging to store electricity in the home. The vehicle’s storage capacity enables it to provide power to a residence over multiple cloudy days, or during the evening when the photovoltaic system is inactive. This offers customers the choice between drawing energy from the public grid, and utilizing self-generated electricity stored in the vehicle battery.

Additionally, through innovative electricity tariffs and advanced algorithms, Volkswagen has said that it is currently feasible to strategically charge EVs when abundant renewable energy is accessible. In this scenario, wind turbines, for instance, will not need to be deactivated during periods of low consumer demand.

The ID. models’ bidirectional charging feature ultimately acts as a dynamic extension of the home storage system, powering the customer’s house when needed. Enabled by DC charging, the vehicle automatically provides extra energy when the home storage system depletes, entering standby mode once replenished. This functionality allows vehicles in the ID. range to function as a backup power source, ready to support the home when needed. In carrying this functionality out, Volkswagen expects that this system will be able to power a house for around two days, while maintaining a 20% charge for vehicle mobility.

The first power station supporting Volkswagen’s new bidirectional charging capacity is HagerEnergy’s S10 E Compact DC home power station, while support for other home power stations is expected to be announced at a later date.