Bidirectional Charging Station
Bidirectional charging turns your EV into energy storage, supplying power when needed or most valuable.
how it works?
Bidirectional charging pays off for everyone.
With or without solar panels, bidirectional charging lowers costs and creates new revenue opportunities—adding extra value to existing systems.
Depending on the situation, this results in an annual financial benefit of up to CHF 520 with a solar system or up to CHF 300 without a solar system. Details of the financial benefit follow:
Marketing Flexibility
Your EV battery can join FreeState's virtual power plant, supporting the grid and earning a FLEXBONUS through standby and peak-rate payments.
Additional income via FLEXBONUS:
With solar system
up to CHF 170 per year
system comparison
up to CHF 170 per year
Note: The yield potential mentioned here can only be achieved under optimal conditions – these include around 60% plug-in time, a large pool size, favorable market development and sufficient available battery capacity.
Bidirectional Charging: Key Facts
Bidirectional charging integrates your EV into your home energy system, managed automatically by Free State AG ONE for optimal energy use—while transparently addressing current technical limitations.
Your car battery becomes part of Free State AG
Your EV battery unlocks savings and revenue, while Free State AG automatically optimizes energy use in real time.
More independence for your home
Capacity comparison:
An electric car battery has five to ten times the capacity of a typical home battery. This allows you to use your solar power for longer and remain independent of the grid for up to several days. Bidirectional charging strengthens your energy system and significantly increases your self-sufficiency.
EV battery capacity
Home battery capacity
Bidirectional charging pays off
Instead of CHF 3,600 for a conventional charging station, you invest around CHF 5,700 and thus make your electric car's battery part of your energy system. Your added financial benefit: Additional savings and revenue.
Always full control over the charge level
With the Free State AG app, you monitor your EV battery, set a minimum charge level, and optimize surplus energy use.
Funding for bidirectional charging stations
Are you interested in a personalized offer?
FreeState's bidirectional charging turns your electric car into a power bank for your home. This saves you electricity costs, generates attractive additional income, and gives you greater independence.
Request your personalized quote now and find out how you can benefit from bidirectional charging.
Request a quote
For which situation would you like a personal, non-binding quote? *
List of electric vehicles that support bidirectional charging.
Many automakers have already launched vehicles that enable bidirectional charging. As more and more automakers adopt bidirectional technology, this list is expected to grow soon.
Types of bidirectional charging
There are various concepts of bidirectional loading; these are the most common:
Standards and Regulations
ISO 15118-20 (2022) defines communication standards for bidirectional charging between EVs and wallboxes. Manufacturers must now deliver compatible, cost-effective systems.
BiDi Newsletter
All our solar projects can be easily upgraded to include bidirectional charging thanks to Free State AG ONE. Are you interested in the latest information about bidirectional charging? Then sign up for our BiDi newsletter.
