Big news landed in May 2026: E.ON has announced plans to acquire OVO Energy, one of the UK's largest independent energy suppliers. Subject to regulatory approval, the deal would bring together two of the country's most active players in home energy and EV charging, creating a combined customer base of around six to seven million households.
For EV drivers, this is worth paying attention to.
Who Are E.ON and OVO?
E.ON is a major European utility with roughly five million UK customers. In recent years it has moved firmly into smart home energy, offering the Drive EV tariff with overnight off-peak rates for home charger users.
OVO Energy was founded in 2009 and grew to become one of the UK's leading independent suppliers with around four million customers. OVO has been particularly active in smart energy products: its Drive Anytime tariff offered 6p/kWh for EV charging and the company invested heavily in vehicle-to-grid (V2G) technology alongside partners including Nissan and Indra.
Why This Matters for EV Charging
The acquisition signals a broader industry truth: energy companies now see EV charging as central, not peripheral, to their home energy offering. When a utility acquires another utility and explicitly cites smart and flexible energy as the strategic rationale, that tells you where the commercial priority is.
For EV drivers, a few things are worth watching:
- Tariff continuity: OVO's Drive Anytime customers will want clarity on whether their rate survives the merger. In the energy sector, acquisitions can lead to tariff rationalisation.
- Smart charging integration: Both companies have invested in smart charger APIs and off-peak scheduling. A combined entity has more resource to deepen these integrations further.
- Competition for Octopus: Octopus Energy dominates smart EV tariffs in 2026, with Intelligent Go attracting over 150,000 customers. A combined E.ON/OVO could provide meaningful competition, which benefits all EV drivers through better rates and product innovation.
- V2G momentum: OVO has been a UK leader in vehicle-to-grid trials. Whether E.ON continues that investment or redirects it will shape how quickly V2G reaches mainstream UK homes.
What Should OVO Customers Do Right Now?
If you are currently on an OVO tariff, there is no immediate action needed. The acquisition is pending regulatory review and may take several months to complete. Your supplier is required to notify you in writing before any tariff changes take effect.
If you are shopping for a new EV tariff in 2026, the market remains competitive:
- Intelligent Octopus Go: 8p/kWh from 11:30pm to 5:30am
- EDF GoElectric: 6.99p/kWh from 11pm to 6am
- Good Energy EV: 9p/kWh from midnight to 5am
The key is pairing a smart tariff with a compatible smart home charger. Without one, you cannot take advantage of auto-scheduling features that shift your car's charging to the cheapest overnight window automatically.
The E.ON/OVO deal is a sign that the UK energy market is consolidating around smart home energy management, with EV charging as a pillar. For EV drivers, this is ultimately good news: larger players competing for your EV tariff business means better products and lower overnight rates.
Getting your home charger right is the foundation of all of it. A smart, compatible charger means you can switch tariffs freely and always get the best overnight rate, whoever your supplier is.
Ready to get home charging right?
Plug In Stations installs smart home chargers compatible with all major UK EV tariffs, so you can switch suppliers freely and always get the best overnight rate.
