EVolution

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The evolution in EV reign has prominently reshaped the boundaries of the auto industry. Think about an emergency where you are suddenly in a need to power anything! Usually, it is thought that EV charging is a one-way “Grid-to-Vehicle” flow of energy and stored power can be used exclusively for driving. But something called ‘bi-directional’ charging is making a buzz in the market. This technology allows a vehicle to push back its energy into the grids and is known as ‘V2G charging’. Similarly, there is a new-fangled concept of ‘V2X charging’ that enables the use of EV batteries in supplying the home-hold or building loads. This read shall walk you through the basic idea of the same.

Key Points

Globally there will be 140-240 million electric vehicles by 2030. This means that we’ll have at least 140 million tiny energy storages on wheels with an aggregated storage capacity of 7 TWh”.

There could be a lot of reasons to get excited about this capability. BNEF (BloombergNEF) data shows that just over 10 million battery-powered EVs are on the road globally at the end of 2020, with combined 296-gigawatt hours of lithium-ion batteries installed in them. That’s a lot of batteries driving around – 8 times more than the number of stationary grid-scale batteries installed globally – that could help stabilize power grids everywhere and, in theory, generate revenue for EV owners. Another recent study by BNEF shows that V2G technology could reduce the amount of power generation from fossil fuels by 76% by2040. 10 kWh is what an average EV needs to drive around 60 kilometers (37 miles).

“V2G supports in balancing the grid and smoothly integrating renewables, it enables utilities to become less dependent from fossil fuel power plants. Since V2G solutions are expected to become a financially beneficial feature for utilities, they have a clear incentive to encourage consumers to take part. Consumers will be rewarded if they make their battery available to the utility to be used for V2G. And thus, a lower total cost of ownership.”, Virta.

How V-2-G charging works; Courtesy: Newmotion

Something really important announcement slipped under the radar at VW’s ‘Power Day’ in March. From 2022 onwards, VW foresees the new EV models with the support of bi-directional charging. The Nissan Leaf is currently the only mass production of EVs on the market to support bi-directional charging today. Hyundai, Kia, and Lucid all have future vehicles which include this capability. Recently, Hyundai announced that its new EV, the Ioniq 5, would support vehicle-to-load technology. Newmotion, yet another prominent player in the race has joined the forces with Mitsubishi, and TenneT and has tested the implementation of the bi-directional chargers to deep-dive how electricity can be better balanced and redistributed into the network.

“NewMotion’s CEO Sytse Zuidema calls it ‘an energy revolution in the field of electric driving.”

All-in-All

V2G or V2X charging would plot a long way to become mainstream it seems. Some hurdles need a radar. A well-defined device like a V2G/X communication module or vehicle supervisory module is the subsequent requirement. Also, the vehicle manufacturers must ensure the bidirectional charging feasible models to promote this technology. The recent surveys in Europe projected the increase of the V2G market to $ 5 billion between 2020-2024. So, to hit this opportunity the nation is to release a dedicated industry standard for bi-directional charging. All the leading auto countries are required to ensure this standardization in pursuit to accelerate the V2G market.

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