<
https://www.pv-magazine.com/2025/04/01/german-startup-launches-bidirectional-charging-kit-for-evs/>
"After a sunny winter day, an electric vehicle and home battery may be fully
charged. However, overnight, the storage capacity in the house decreases,
forcing the operator to draw power from the grid despite unused solar energy.
Many EV owners seek bidirectional charging, or vehicle-to-home (V2H), but it
has not yet become standard.
Today, many EVs can connect to small appliances, such as a vacuum cleaner or
camping stove, via a 230 V socket. Homeowners can also purchase a
vehicle-to-load (V2L) adapter to recharge their home battery.
To address this, German startup Energy Island Power developed a connection kit
that allows the solar inverter to serve as an input to the home grid, requiring
synchronization with the grid. Without the kit, synchronization is not possible
when connecting the vehicle via a plug.
In the proposed system, the vehicle or other 230V generator connects to the
company’s Power Unit 3000. This unit rectifies and converts the current to
create current-voltage (IV) characteristics similar to those of a PV system.
The inverter then feeds the power into the home grid or storage system as
either single-phase or three-phase alternating current. Inverters with
emergency power capability can use the vehicle to bridge extended power
outages.
If the inverter has a free direct current (DC) input, the Power Unit can be
plugged in. If all inputs are occupied, a Connect Unit is added between them,
connecting the solar string on one side and the Power Unit on the other. The
system uses MC4 solar connectors and can provide up to 3,000 W of power."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
