The UK government is considering incentives for automakers to integrate Vehicle-to-Grid (V2G) technology into electric vehicles (EVs) as part of a review of its zero-emission vehicle (ZEV) mandate, which began on August 14, 2026, aiming to add 1 gigawatt of grid capacity by 2030 [24, 28, 30, 33]. This initiative could transform how electric vehicles interact with the national energy grid, potentially improving energy stability and offering new ways for EV owners to manage their electricity costs [4, 7, 10].

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V2G technology allows electric vehicles to draw power from the grid and also send stored electricity back into it, turning EVs into mobile energy storage units [10, 17, 27]. This capability enhances grid stability by balancing energy supply and demand, especially with renewable sources [4, 5, 15]. The National Energy System Operator predicts V2G could add 1 gigawatt of grid capacity at peak by 2030. EV owners could also reduce energy bills by selling excess power to the grid during high-demand periods [7, 21, 22].

Current challenges for V2G include high upfront costs for specialized hardware, with residential V2G chargers ranging from $3,000 to $6,000. Despite concerns about battery life, research indicates that well-managed V2G use may not significantly accelerate degradation. Octopus Energy's Power Pack is currently the only operational residential V2G tariff in the UK [12, 13].

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