In this article, we will discuss bidirectional EV charging, including V2G and V2H technologies. We will explain how they work, their benefits and limitations, and their impact on the environment and the economy. We will also explore the significant benefits that bidirectional charging offers to electric vehicle owners.

What is Bidirectional EV Charging?

Bidirectional charging is a technology that allows EV chargers to charge their batteries and also discharge energy back to the grid or other buildings and devices. This technology enables EVs to act as mobile power sources that can help to balance the grid, reduce energy costs, and increase energy efficiency.

What is V2H?

V2H (vehicle-to-home) technology allows EVs to supply electricity to a building, helping to reduce the cost of electricity for homeowners and increase the resilience of the electricity grid.

By utilising the electricity stored in your EV battery to power your appliances during peak demand periods, when electricity prices are higher, you can save money on your energy bills and reduce your dependence on the grid.

A V2H charger, such as the BP Pulse Home Charger, can also be beneficial to the wider community, especially when combined with renewable energy sources such as solar and wind. In this instance, V2H can help by balancing the supply and demand of power, smoothing out fluctuations and improving the stability and efficiency of the grid. In turn, this helps to lower the greenhouse gas emissions and the environmental impacts of electricity generation.

What Is V2G?

V2G (vehicle-to-grid) technology allows EVs to supply electricity to the grid during peak demand periods when the power grid is under stress, and then recharge their batteries during off-peak periods when demand is low. V2G technology has the potential to reduce the need for additional power generation capacity and improve the reliability of the grid.

If you have a renewable energy source such as solar or wind power available at home the energy from these sources can be stored in your EV's battery and later discharged to power your home as required.

If you are on a time-of-use energy tariff you could choose to use your EV to provide power to your home during the times when electricity rates are at their peak and re-charge your EV's battery during the off-peak periods when electricity is cheaper. 

Benefits of Bidirectional EV Charging

The benefits of bidirectional EV charging are numerous, including increased grid stability, reduced electricity costs, and improved energy efficiency.

By combining bidirectional charging with self-generated energy from solar or wind, EV owners can produce and store their own energy, reducing their dependence on the grid and increasing the grid's overall energy efficiency. This also allows EV owners can reduce their energy costs and even earn money by selling excess energy back to the grid.

During power outages or times of high demand, EV owners can use their charged EV batteries to power their homes or businesses which is both a practical solution to lost power and decreases stress on the grid.


Bidirectional EV charging is an innovative and promising new technology that has the potential to revolutionise the way we use and store energy. By providing flexibility and stability to the electricity grid, it can help to reduce costs, improve reliability, and mitigate the effects of climate change.