Performance Communications | July 24, 2026
Harnessing the European car parc to help provide a stable energy grid sounds like the work of science fiction, but Lindsey Reaney explains it could be closer to reality than you think
One of the big challenges for electricity grids running off periodic generation sources like renewables is the issue of intermittency: what happens when the sun isn’t shining, or the wind isn’t blowing?
In practice, the challenge of intermittency means a stable grid will require a lot of energy storage capacity – whether that be in the form of solutions like pumped water storage, or through the rise of grid-scale battery technologies. In terms of how much, the EU has estimated that the continent needs to have 200GW of storage capacity by 2030, compared to just 55GW today.
That’s a lot of infrastructure, which is a hard thing to finance in a world where government borrowing is more expensive than it has been in nearly 20 years. However, there’s a potentially vast reservoir of new distributed energy storage capacity entering Europe that could be tapped in the coming years: EVs. Specifically, EVs that are plugged into the grid and are otherwise idle.
This concept of drawing from EV batteries to support the grid is called vehicle-to-grid (V2G) technology. It’s something we first explored over a decade ago with Nissan Europe on its Future of Mobility Strategy, which included the technology as an essential component of the future role for EVs in the wider energy system.
V2G has slowly gained momentum over the last few years, and now Europe is finally signalling it wants to adopt the technology to support its energy transition in the new EU Electrification Action Plan.
The EU’s strategy proposes a legally binding electrification target of 46% by 2040 – to align with its goal to cut greenhouse gas emissions by 90%. To support this, the EU Commission is committed to launching a framework for regulatory sandboxes and living labs across Member States; these will enable new vehicle-to-grid (V2G) business models to increase the potential for consumer flexibility and address high electricity costs.
Currently a lack of standardisation across technologies is the biggest barrier to fulfilling the bloc’s ultimate electrification goals – the continent’s many individual transmission and distribution grids need to be able to interface with any V2G-enabled cars to be able to successfully use them as storage mediums.
However, the EU Commission is hoping to push such standardisation by mid-2027, where it wants to promote smart charging by default in electricity supply contracts related to EVs, introducing V2G requirements for new EVs by the end of the year.
To give drivers an incentive to chip in, the EU is also proposing “time of use” charges that encourage drivers to take energy out at windows of peak renewable generation and then supply it back to the grid later. If mass adoption were realised, this could in turn unlock greater stability on a macro scale and perhaps even lead to the mass democratisation of energy, as predicted by Nissan back in 2016.
Those requirements would include technical specifications to enable interoperability, such as standardised communication protocols. This includes work on the part of car manufacturers to build in the software and processing power to determine when they’ll be able to provide power to the grid without compromised the range available to the driver. But it also demands much closer collaboration between manufacturers, energy transmission companies, and generators themselves to coordinate drawdown windows from plugged-in EVs.
It’s a huge technical feat, but the gains will also be significant. An integrated V2G ecosystem opens huge opportunities for motorists to offset their energy bills, dramatically improving the economics of EVs. And, in developing such a complex software and communications ecosystem, an EU V2G initiative could help Europe establish a lasting leadership in autonomous infrastructure – the sort of thing that structural economic advantages can be built on top of.
Transport is responsible for around 25% of total greenhouse gas emissions and about 90-95% of the energy consumed in the transport sector comes from fossil fuels. Road transport represents by far the largest share of this consumption, followed by aviation and maritime. V2G technology offers us the chance to hit two climate and energy targets at once: both reducing transport emissions by promoting EV adoption, while also using those same EVs to stabilise the grid and reduce the need for fossil fuel power generation at times when intermittent renewables are at low output.
By democratising energy storage, enabling the renewable transition more viable than ever before, and improving the incentives for EV ownership, V2G isn’t just a nice-to-have: it may very well be the secret that allows Europe to join up its energy, industrial, and climate policy.
