Which charging solution is right for you?
Find the right product for you here.
Charging stations, batteries and software
Our products for the (bidirectional) charging of electric cars
V2X-controller
Centralised management of charging stations & batteries
Product description
The V2X-controller is the central element in the ecosystem and the key component for a sustainable and self-sufficient energy solution for the smart charging and storage solution. The sun2wheel family of devices can be controlled conveniently and according to personal requirements via smartphone. The use of energy is optimised and self-consumption is significantly increased in combination with a PV system.
Highlights
- Enables control according to personal needs and situation
- For stationary and mobile storage
- For any number of charging stations
- Smart control via app
- Simple installation
- Modularly expandable
- And developed in Switzerland
two-way-digital (CHAdeMO)
An inexpensive bidirectional charging station
Product description
Turn your electric car with CHAdeMO plug (direct current) into a supply battery with two-way-digital. This means you can also use the energy from the photovoltaic system in the evening and at night or as a reserve for local peak loads.
Highlights
- Cost-effective solution
- Quick and easy installation
- Operation via app
- Monitoring and remote maintenance
two-way-digital (CCS)
An inexpensive bidirectional charging station
Product description
Use two-way-digital to turn your electric car with CSS plug (direct and alternating current) into a supply battery. This means you can also use the energy from the photovoltaic system in the evening and at night or as a reserve for local peak loads.
Highlights
- Cost-effective solution
- Quick and easy installation
- Operation via app
- Monitoring and remote maintenance
two-way-10
Bidirectional charging station, DC, 1 x 10 kW
Product description
Use your energy efficiently thanks to two-way 10 by turning your electric car into a supply battery. The energy from the photovoltaic system is also available in the evening and at night or as a reserve for local peak loads.
Highlights
- Wlan capable
- RFID capable
- 1 or 2 connections possible
- For CCS or CHAdeMO
- Quick and easy installation
- Operation via app
- Intelligent integration thanks to OCPP
two-way-20
Bidirectional charging station, DC, 1x 20kW, compatible with VW
Product description
With the two-way-20, your VW turns into a supply battery. This means you can also use the energy from the photovoltaic system in the evening and at night or as a reserve for local peak loads.
Compatibility: All models in the VW ID series with a battery capacity of at least 77 kWh.
Available from July 2025.
Tiny
The entry-level charger with type 2 plug
Product description
The Tiny-11 is the ideal entry-level charger for charging electric vehicles: inexpensive, quick to install and easy to use. It is suitable for private use in single and multi-family homes as well as at the workplace or in customer and public car parks.
Highlights
- Ideal entry-level appliance
- Best price-performance ratio
- Simple plug & play installation with supplied mounting plate
- Entry-level load management "V2X-controller essential" can be integrated
- Integrated cable for vehicle (type 2 plug) and mains
Service
The sun2wheel service subscriptions
Product description
Choose the right support for your system from the various sun2wheel service products – for a worry-free all-round package for your charging solution.
Highlights
- Warranty extensions
- Bring-in guarantee
- Remote support
- Service subscriptions for AC charging stations
- Service subscriptions for bidirectional charging stations
sun2wheel News
There is a lot going on in the field of bidirectional charging and developments are rapid. Stay up to date here and find out the latest news about our charging solutions and projects.
Our answers to your questions
What is bidirectional charging?
In bidirectional charging, the vehicle battery is used as an intermediate storage of electrical energy (e.g. to store surplus solar power). In contrast to monodirectional charging, which is still common today, a bidirectional charging station can be used to feed electrical power and energy back into the building (V2H/V2B) or the electrical supply network (V2G) as required.
When is bidirectional charging permitted in Switzerland?
In principle, bidirectional charging is equivalent to the operation of stationary batteries. If the charging infrastructure complies with the VSE recommendation on grid connections for energy generation systems (NA-EEA) and the technical standards for electrical safety and electromagnetic compatibility, it can be authorised when registering with the distribution grid operator.
From 1 January 2022, bidirectional charging stations can be registered regularly with an updated technical connection application (TAG).
Which cars can charge bidirectionally?
The following vehicles are enabled for bidirectional charging as of February 2024:
- Honda: Honda e > read more
- Nissan: Leaf (from 2014), Evalia and e-NV 200
- Mitsubishi: i-MiEV, Outlander and Eclipse Cross > read more
- Peugeot iOn and Citroën C-Zero
- VW: ID.3, ID.4, ID. Buzz and ID.7
Listed are all vehicles that allow vehicle-to-home via a suitable charging station. Vehicle-to-load, such as the Hyundai Ioniq 5, must be considered separately. Here, you can only draw a limited amount of power via an onboard plug (single-phase, up to 3.6 kW), but you cannot supply a house with electricity.
Further information: In principle, all Japanese electric vehicles can charge bidirectionally because this is mandated by the Japanese government. So far, bidirectional charging is primarily possible for vehicles with CHAdeMO plugs. The Honda e is an exception, it can do bidirectional charging via the CCS plug. Bi-directional charging requires approval from the vehicle manufacturer and certification of the charging station for the specific vehicle type.
Several vehicle manufacturers have announced that their vehicles will be enabled for bidirectional charging in the near future. In general, the introduction of an international standard ISO 15118-2020 is expected by 2025, which will also regulate bidirectional charging with CCS charging plugs in a binding manner.
Bidirectional charging: Advantages and disadvantages
Advantages: Optimisation of energy use and support for the energy transition. The self-consumption of the PV system can be significantly increased, thereby reducing electricity costs. Renewable energy is stored and therefore utilised optimally and efficiently. The idle times (usually an average of 23 hours/day) of the e-vehicles can be utilised. The car has multiple uses and is not just a means of transport. The power grid is relieved. Possible price fluctuations in electricity costs can be balanced out.
Disadvantages: The regulatory requirements are not yet fully in place. At present, the electricity from the car battery can only be used for personal consumption. The price of the bidirectional charging station is higher compared to a monodirectional wallbox. However, the cost of a stationary battery should be taken into account when making a comparison. Only a few vehicles are currently approved by the vehicle manufacturers for bidirectional charging
Which wallbox supports bidirectional charging?
Bidirectional charging is generally permitted in Switzerland. Two models of bidirectional DC charging stations are currently available for purchase. The two-way digital and two-way10 models from sun2wheel are the only certified wallboxes for Switzerland. Sun2wheel has been selling these wallboxes since 2021 and can draw on corresponding experience. > go to products