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 adds extra value to existing systems.
The annual financial benefit depends on your situation. We will gladly calculate it for you.
Bidirectional Charging: Key Facts
Bidirectional charging integrates your electric vehicle into your home energy system, which an intelligent energy management system manages automatically for optimal energy use while transparently taking current technical limitations into account.
Your car battery becomes part of your energy system
Your EV battery unlocks savings while the energy management system automatically optimises energy consumption 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
With a bidirectional charging station, you make your electric car's battery part of your energy system. Your additional benefit is further savings, and income where the market allows it.
Always full control over the charge level
Via the manufacturer's app, you monitor your EV battery, set a minimum state of charge and optimise the use of surplus energy.
Funding for bidirectional charging stations
Status on 11/09/2026
Are you interested in a personalized offer?
Free State's bidirectional charging turns your electric car into a power bank for your home. This saves you electricity costs and gives you greater independence.
Request your personalized quote now and find out how you can benefit from bidirectional charging.
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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 charging, 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 easily be extended with bidirectional charging using a suitable energy management system. Interested in the latest information on bidirectional charging? Then sign up for our BiDi newsletter.
Frequently asked questions about bidirectional charging
Bidirectional charging allows your electric vehicle to not only draw power from the grid but also feed it back. Your EV battery becomes a mobile energy storage system that can power your home.
Bidirectional charging reduces your electricity costs, increases your energy independence and maximizes the use of your solar system. Where the market allows it, it can also earn income from grid services.
Key advantages include lower energy bills, greater self-sufficiency, optimized solar energy usage and a reduced carbon footprint, plus revenue from flexibility services where the market allows it.
Modern EV batteries are designed for thousands of charge cycles. Bidirectional charging within the 20-80% state of charge range minimizes battery degradation, and smart management systems ensure optimal battery health.
Not yet. Bidirectional charging requires specific hardware and software support from the vehicle manufacturer. Currently, select models from VW, Škoda, Cupra, and Ford support this technology, with more expected soon.
You can save by using stored solar power instead of grid electricity. Earning from flexibility services depends on whether and how the Serbian market allows it, so we do not promise it.
No. The system only discharges between 20-80% state of charge and you can set minimum charge levels. Your driving needs always take priority over home energy supply.
You need a compatible electric vehicle, a bidirectional DC charging station and an intelligent energy management system. A solar system is recommended but not required.
Yes. Bidirectional charging requires a DC wallbox specifically designed for two-way power flow. Standard AC chargers cannot support bidirectional charging.
When used within recommended parameters (20-80% SoC), bidirectional charging has minimal impact on battery lifespan. Check with your vehicle manufacturer regarding warranty specifics.
When your car powers your own home (V2H), the energy stays behind your meter. Feeding energy from the car back into the grid must comply with the EDS rules and your customer status, so we check this before installation. ISO 15118-20 defines the communication between vehicle and charger.
We are not aware of any specific incentive for bidirectional chargers in Serbia at the moment. A solar system on a family house can be co-financed through a municipal public call, and banks in the GEFF programme offer green loans for energy efficiency.