With Vehicle-to-Grid (V2G) Technology, We Are Stabilising the Power Grid and Shaping the Future of Energy Management.

Just Imagine: Your Electric Car Could Be Part of a Revolution…

… a clean energy revolution. There is no doubt that crude oil, natural gas and coal are powerful energy providers. Today, they cover the majority of global energy needs. However, even though it took these fossil fuels up to several hundred million years to form, we have considerably exploited their deposits within only the last 150 years. In the process, emissions of greenhouse gases have caused the planet’s climate to change in an unnatural manner. Considering the fact that the world energy consumption is increasing, it is clear that we have to change how we generate and use energy. This includes electric mobility as well as the switch to renewable energy. The challenge is that the availability of wind and solar energy is still too dependent on weather conditions. This would be different if energy from renewable sources could be temporarily stored in the short and long term.

This is where your electric car comes into play. On average, an electric car just stands around for 23 hours of the day. This time could be better-used if the car were to step in as temporary stationary storage. What if the energy stored in your vehicle battery could be returned to the power grid at times of increased energy demand? What if this did not result in any disadvantage for you, and in fact meant lower procurement and maintenance costs for your electric car? And there is more: what if you could supply your home entirely with your own solar power? This is the vision behind the high-tech Vehicle-to-Grid (V2G) and Vehicle-to-Home (V2H) solutions; a vision which we at The Mobility House strive towards implementing, each and every day, with a great deal of commitment and passion.

How Do V2G and the Integration of the Electric Car as Energy Storage Work in the Smart Home?

Our Vision Explained in a Video:

Electricity Generation and Usage

Wind turbines that remain motionless for days on end are unfortunately a common sight these days. This is not, as you might think, due to a lack of wind. Quite the opposite: wind turbines have to be turned off if they produce more energy than the power grid can accommodate. One field of application for V2G technology is in the collection of excess generated power. Storage capacity is growing along with the number of electric cars included in the Vehicle-to-Grid “swarm”, which enables renewable energy to be put to better use.

Electric Car Creates Connections

If energy supply exceeds demand, electricity prices fall. Then, energy from the sun, wind and water can be stored in your electric car battery at low cost, while your car charges at the charging station. If demand increases or supply decreases, this energy can be fed back into the power grid in return for a profit. In future, you will determine for how long your car is available as storage, and the point from which you need your car to be ready for use with a full battery, e.g. before a long journey.

Energy Control in the Smart Home

Has it ever annoyed you that you feed your own solar power into the grid and receive little compensation, but then have to buy it back at a high price? Would it not be better to temporarily store the electricity for later use? Ultimately, battery capacities in modern electric cars are sufficient to supply one household with power for several days – and that is precisely the objective behind Vehicle-to-Home (V2H). For anyone who seeks a solution to charge their electric car with own-produced solar power already today, the smartfox energy manager can help.

The Mobility House Implements Charging Processes of the Future.

Our Vehilce-to-Grid Roadmap

Our Objective

Our vision follows simple logic: energy is needed wherever people go; and there, their electric cars are usually not far away. With V2G, we will make it easier to generate and use power in a customer-oriented way. This enables fluctuations in energy generation and the grid to be balanced out, and the success of renewable energy to be assured.

The Challenge

In order to make electric vehicles compatible with V2G, the technical requirements for charging and discharging the battery need to be implemented. Further, matters of load management, grid frequency and cost accounting must be clarified with respect to the grid. Typical traffic movements and usage patterns must be thoroughly taken into account in order to put V2G into practice.

How You Can Benefit

If you provide your electric car for temporary power storage, you can earn a profit on the electricity market and enjoy lower procurement and maintenance costs for your electric car. At home, you benefit from the option to store your own solar power, so you can supply your household and electric car with power independently of the grid, and drive completely emissions-free.

Your Collaboration

Continue to look forward! Electric car models that have a CHAdeMO connection already fulfil the technical requirements for bidirectional charging. Keep in mind compatibility with future development options, even when you buy and install a charging station, for example.

Our Success Speaks for Itself. Vehicle-to-Grid Projects We Have Already Implemented


In initial tests, we succeed to charge several electric cars with different charging statuses on a time-controlled basis, and in such a way that the process is optimised for fleets. In coordinating charging processes and energy prices, we develop a cost-optimised charging model, and create the basis for communication between the vehicle and the power grid.


Smart charging in practice: A fleet of 10 Renault Zoes is successfully charged on a time-controlled basis, and in response to price fluctuations on the energy market. This enables the optimisation of costs for power used, to the benefit of the car owner.


With the Vehicle-to-Coffee example application, we make use of the bidirectional charging function of our electric vehicles (Nissan Leaf and e-NV200). We integrate the electric cars into our office’s power consumption at our site, the smarthouse in Munich, by means of bidirectional fast charging stations. With this simulation of power supply capacity, we realise the seminal potential of the electric car as energy storage.


By intelligently controlling charging processes in fleets of electric commercial vehicles, we reduce operating costs whilst increasing fleet efficiency. In parallel to this, we are integrating fleets of electric cars into the control power of various European countries.

Intelligent Charging Saves Money, Protects the Battery and Even Achieves Future Income.

Currently, our approach to charging is very pragmatic: just plug it in, wait and have a cup of tea. But this means we miss out on various options to optimise the charging process and make it smart. All of this is to change in future. An overview of three charging strategies:

How you charge today

  • Charging begins as soon as a vehicle is plugged in.
  • The vehicle charges regardless of the prevailing energy price on the market.
  • The vehicle mostly stands where it is for hours at a time, with a fully charged battery. This battery status impacts the performance and useful life of the battery.

How you charge economically

  • The vehicle is charged on a controlled and smart basis.
  • The vehicle prefers to charge at times when the energy price is low, and as much power as possible is produced from renewable sources.
  • The battery is protected because it retains optimised charging statuses for as long as possible.

How you will charge tomorrow

  • The vehicle is charged on a controlled and smart basis, and discharged as needed.
  • While stationary, the vehicle provides services for the power grid or for you at home, and achieves income on a day-to-day basis.
  • The battery is protected because it retains optimised charging statuses for as long as possible.
The World Is Changing, and Mobility is Changing With It.

Discover V2G Activities Worldwide in our Outline Map

(Last updated: March 2017)

You Know about more Projects or Research Activities on V2G?

This world map has been created to the best of our knowledge. However, the list of the presented projects is certainly not complete which is especially due to the speed with which V2G research continues to develop. In order to keep this V2G map up to date, we look forward to your comments on missing or new projects by mail.

Vehicle-to-Grid Made Easy.

The most Frequently Asked Questions (FAQs)

There are yet no V2G products available. As you can find out above, we are currently in the midst of the development process for V2G and V2H products, and are working hard on their commercial implementation. The current focus of our activities is to optimise and establish the appropriate charging infrastructure. At the top of our agenda is further development of intelligent controls for charging processes, as we are currently testing in various pilot projects.
Legal regulations are still putting the brakes on the commercialisation of Vehicle-to-Grid. Questions associated with this new technology concerning the organisation of private services on the power grid still need to be clarified in full. We strive to be able to offer our customers the first commercial products in the V2G and V2H areas in future.
Vehicle-to-Grid is associated with various technical requirements. The most important of these is the capacity for bidirectional charging, i.e. that the electric car is able to charge up with energy, but also to return it to the power grid. Both electric car and charging station must support charging in both directions. A power meter concept and communication and monitoring hardware with appropriate control software are additional technical components.
Our smartfox energy manager is an innovative and efficient solution that enables you to charge your electric car with your own solar power. However, if the solar power is only to be temporarily stored in your electric car's vehicle in order to be used later in your household, this is bidirectional Vehicle-to-Home use. Technical components that are currently in development at The Mobility House are required to achieve this.
V2G requires a vehicle that can be bidirectionally charged and that is able to supply energy back into the power grid. To date, this is only possible with the Japanese CHAdeMO standard, which is installed in most electric cars made by Nissan, Mitsubishi and Kia. We primarily use the Nissan Leaf and Nissan e-NV200 vehicle models in our pilot projects.
In principle, you can use your own solar power to charge with all charging stations that are equipped with a network interface (e.g. LAN or ethernet). The smartfox energy manager is a controllable solution that is ideally adapted to the private generation of solar power.
No, the DC wallbox in the online shop cannot be used for bidirectional charging and integration into the energy market. We will include a bidirectional DC charging station into our portfolio as the development of V2G technology continues to develop
In future, it will be possible as a minimum to connect today's charging stations that are equipped with an integrated communication unit, to unidirectional services for charging optimisation. This includes, for example, economic charging aligned with energy prices. This variant of controlled charging will also avoid costs and generate value, even if only to a limited extent.
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Click here and find out more about our stationary storage projects for which we utilise 2nd-use batteries from electric cars.

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