Vehicle-to-grid V2G technology crossed a critical commercial threshold in 2026, moving from utility trials to a tariff that qualifying UK homeowners can sign up for today. The proposition is compelling: your electric vehicle's battery — sized anywhere from 40 to 100 kWh — can push power back into your home or the grid during expensive peak periods, then recharge cheaply overnight or from your solar panels during the day. For a solar-plus-EV household, V2G is becoming a meaningful additional revenue stream.
Octopus Power Pack: The UK's First Mass-Market V2G Tariff
Octopus Energy launched Power Pack in 2025 as what it describes as the UK's first mass-market V2G tariff — replacing its earlier Power Loop trial product. The scheme is offered as a bundle: a leased BYD Dolphin EV, a Zaptec Pro bidirectional charger, and access to the smart export tariff, priced at around £299–300 per month. Octopus automatically schedules charging when the grid is greenest and discharges back to the home or grid when energy is most valuable. For a customer driving approximately 7,500 miles annually, Octopus estimates savings of around £620 per year compared with a standard variable tariff.
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Importantly, Power Pack requires a G99 licence — permission from your Distribution Network Operator to export power to the grid. The application process can take up to 12 weeks, so this is not an immediate sign-up for most households. There is no separate standalone V2G tariff without the bundle arrangement at the time of writing.
Compatible Vehicles and Hardware
V2G requires a vehicle capable of bidirectional DC charging and a compatible charger. The hardware picture in the UK in 2026 is more limited than many press reports suggest:
- BYD Dolphin with Zaptec Pro charger — the primary vehicle in the Octopus Power Pack bundle.
- Nissan Leaf (CHAdeMO port) and Nissan e-NV200 with Wallbox Quasar v1 charger — CHAdeMO-based V2G has been available longer and has a more established UK ecosystem.
- Mitsubishi Outlander PHEV with Wallbox Quasar v1.
A growing list of models — including some Hyundai IONIQ 5, Kia EV9, and VW Group vehicles — have V2H (vehicle-to-home) or V2L (vehicle-to-load) capability, but certified UK V2G export to the public grid via compatible chargers and approved tariffs is still limited to the vehicles above for most households. CCS bidirectional charging is technically progressing but not yet broadly certified for UK residential grid export in early 2026. Octopus has indicated it is working on expanding the compatible vehicle list.
Tesla and V2G
Tesla's position on V2G has shifted. Ofgem granted Tesla a retail electricity licence in March 2026, and the company has announced Powerwall-style vehicle-to-home functionality under its Powerwall branding. V2G OTA (over-the-air) enablement on some Model Y variants has been reported, though the full UK consumer product — including grid-export tariff — had not launched at the time of writing. Tesla's involvement will materially expand the UK V2G market when it does.
Combining V2G with Rooftop Solar
The natural pairing for V2G is a rooftop solar system with a smart hybrid inverter. In summer, the EV charges from solar surplus during the day; in the evening peak, it exports back, effectively arbitraging the difference between the cheap solar generation and the higher evening grid price. Systems with good monitoring — such as those using SolarEdge, Givenergy, or Solis inverters with EV integration — can automate this dispatch. The combined solar-plus-V2G household can, in favourable conditions, cover most of its energy costs from generation and export income.
EU V2G: Earlier Stage but Growing
Across the EU, V2G trials are running in the Netherlands (Nuon/Vattenfall), France (Renault pilot with Enedis), and Germany, but mass-market residential products are not yet available in the way Octopus has delivered in the UK. The EU's Alternative Fuels Infrastructure Regulation (AFIR) and Vehicle Energy Management standards are expected to accelerate certified hardware rollout through 2026–2027.
Key Takeaways
- Octopus Power Pack — not the older Power Loop trial — is the UK's current mass-market V2G product, launched in 2025.
- Compatible UK V2G vehicles in 2026 include the BYD Dolphin (Zaptec Pro), Nissan Leaf and e-NV200 (Wallbox Quasar v1), and Mitsubishi Outlander PHEV.
- CCS bidirectional V2G for residential grid export is technically advancing but not broadly certified in the UK in early 2026.
- A G99 DNO licence is required for grid export and takes up to 12 weeks to obtain.
- Tesla's UK V2G product is anticipated but had not launched at the time of writing.
V2G is real and commercially available in the UK in 2026, but with a narrower hardware ecosystem than early hype suggested. For solar households considering the technology, Comparisun can help model the economics for your specific vehicle, charger, and tariff combination.