Octopus Energy & National Grid ESO Demonstrate Future Role For EVs In First For Great Britain

The exciting potential benefits from the implementation of Vehicle-to-Grid (V2G) technologies have been discussed for have very long time here on CleanTechnica. We are starting to see more exciting developments in the V2G space now. Recently, the first vehicle-to-grid system on NYC’s grid was launched.

There is more exciting news on V2G, this time from Great Britain, as Octopus Energy and the National Grid ESO demonstrated the future role for electric vehicles in a first for Great Britain. This was the first successful integration of vehicle-to-grid technology, using a test environment of the Balancing Mechanism, the primary tool used by National Grid ESO to balance Great Britain’s electricity system in real-time. It was the first time that vehicle-to-grid technology has been demonstrated in Great Britain to show that electric vehicles can receive a direct signal from the ESO to support system balancing. It marks a major turning point in electricity supply and means that in the future, consumers could play a direct role in balancing the national transmission system through their electric vehicles.

During the initial test run carried out earlier this month, Octopus charged and discharged the batteries of up to 20 electric cars from participating customers at times of grid imbalance. A fleet of Nissan Leafs was used in the test run. The Nissan Leaf is one of the battery-electric vehicles that currently support V2G. Tesla vehicles are not yet set up for vehicle-to-grid (V2G) service. VW and other OEMs will soon support V2G services.

Octopus Energy’s announcement says:

These tests have demonstrated the potential benefit of vehicle-to-grid charging – an hour of a million EVs exporting to the grid could generate the same amount of power as 5,500 onshore wind turbines.

Separate analysis from Octopus Energy’s electric vehicles arm shows that if the trial results were extrapolated across a whole year, the EVs could realise a profit of around £62 million p/a**, whilst also saving non-participating customers money through grid balancing cost reductions.

It doesn’t just benefit the system either. Further Octopus analysis shows customers could realise a potential saving of up to £840 per year***, compared to unscheduled charging on a flat rate tariff – putting money back in people’s pockets at times of record high energy costs.

Several large car brands – including Hyundai and Volkswagen – have committed to include V2G technology in their new EVs, further emphasising the potential of the technology.

When a service is up and running, consumers could save cash off their energy bills as the BM incentivises the use of their car battery as a balancing device, contributing to reduced balancing costs across the network, which will help to reduce bills for all energy consumers.

Octopus Energy Group’s Kraken platform works in the background to match this customer schedule with grid signals to provide flexibility as a service and seamless charging to customers. And if those signals occur outside the tariff windows – which typically are between 23:30-05:30 for import and 16:00-19:00 for export – customers will still benefit from the lowest import and highest export prices thanks to Kraken’s flexibility and customer first approach.

Claire Miller, Director of Technology and Innovation at Octopus Electric Vehicles, comments: “This is a real ‘line in the sand’ moment for V2G tech. We have shown that this technology is capable of helping to balance our future, green grid, to the benefit of people and the planet.

“We’ve proved what is possible with the technology and cars that are currently on the market, and this is only going to grow. Soon we will have millions of electric cars sitting on driveways capable of storing and exporting green energy back to the grid when it needs it most – and once the vehicle to grid proposition is ready to be launched, these cars will help to support our renewables expansion and taking us a huge step closer to net zero.”

Jake Rigg, Corporate Affairs Director, National Grid ESO, comments: “Vehicle-to-grid technology opens the door for everyone to engage in our electricity system, in a way that we can all benefit from.

“The next steps for us are to take these learnings and work with industry on how we develop and deploy a balancing mechanism service for V2G.

“The trial findings will also influence future innovation projects, including the CrowdFlex project we are currently developing with industry, to establish additional routes for consumer engagement in electricity networks.

Image courtesy of Octopus Energy

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