Electric vehicle batteries will soon power homes and sell electricity back to the grid, not just propel cars down the road. Octopus Energy and six partners are testing this in the Powerloop project, installing two-way chargers in homes so drivers can charge cheaply overnight, use stored power when prices spike, or sell it to the national grid. The problem is straightforward: as more electric vehicles plug in, they could overload local grids unless managed intelligently. At the same time, renewable energy sources like wind and solar produce power intermittently, creating mismatches between supply and demand. If the trial succeeds, domestic EV batteries become a distributed storage network that balances the grid in real time. This would reduce the need for expensive infrastructure upgrades—new substations, reinforced cables—and lower the cost of EV ownership by paying drivers for participating. The consortium includes the grid operator for the area with the highest EV uptake, a charge-point platform provider, and an energy aggregator, giving the project rare access to real-world data on how drivers actually use the system. The outcome is a practical blueprint for integrating millions of electric vehicles into the UK’s energy infrastructure without breaking it.
View original technical description
Electric vehicle batteries unlock a new benefit that drivers have never experienced - the battery can help power their home, their street and the whole of the UK. In turn, this enables an innovative management of electricity demands on the grid, minimises network reinforcement costs, and supports the further roll-out of intermittent renewable energy generation. Octopus Energy are leading a consortium to unlock this value with six other key players - Octopus Electric Vehicles, Chargepoint Services, UK Power Networks, Open Energi, Navigant Consulting and the Energy Saving Trust. This unique group will enable customers to discover electric vehicles, take them for a test drive and access a special Vehicle to Grid (V2G) bundle. A two-way charger will enable the driver to charge their vehicle intelligently, use the power in the battery in the home when prices are high, or sell it back to the grid - creating value for the driver. The availability of the domestic electric vehicle (EV) batteries to help balance the system makes the grid flexible and responsive, allowing greater use of variable generation like renewable energy, and reduces the cost of EV ownership by rewarding owners for taking part. As the first project of its kind, Beating Home provides critical insight into how effective EVs are as a grid balancing mechanism, how drivers would like to interact with their EV charging system, and the technology to make it all possible. With this data, the UK can simultaneously encourage greater uptake of EVs while smoothly integrating them into the grid, aligning with UK decarbonisation goals. The consortium includes the market leading charge point platform provider (CPS), an innovative aggregator (Open Energi) and the DNO in the area where EV penetration is highest (UKPN). The unique combination of participants in the consortium enables an unparalleled opportunity to validate domestic V2G at scale in regional clusters.
Plain English summaries and category classifications on this site are generated by AI and may not perfectly reflect the original research.
Is something wrong? Let us know