The Future of EV Charging is Bidirectional, If You Can Afford It
April 22, 2022
With most electric vehicles parked at work or home all day, you may wonder whether you'll save that much by having one. But what if someone told you they are actually big batteries on wheels that could earn you some money? Surplus energy in electric vehicles (EVs) can be sold back to the grid instead of being stored, and this could be used to power millions of households when they need it most, which makes particular sense amid a global energy crisis. With cars and vans parked for an average of 23 hours a day, the potential is great.
By 2030, when no new diesel and petrol vehicles will be allowed to be sold in the UK, there will be around 14 million EVs on British roads and 84 million across Europe according to estimates by the energy consultancy firm Delta-EE. That's plenty of batteries on wheels to tap into.
All people need is, simply put, a charger that works both ways. This kind of technology already exists: Bidirectional chargers allow users to store cheap off-peak or solar-generated electricity in a vehicle battery and then export it to the grid or directly into a home during the hours when electricity costs the most. However there are a few hurdles to overcome before bidirectional charging can go mainstream and convince users of its advantages.
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