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E.ON / OVO merger inquiry

The Competition and Markets Authority (CMA) investigated the anticipated acquisition by E.ON SE (through E.ON UK Limited) of OVO Energy Ltd.

Updates to this page

From:
Competition and Markets Authority
Published:
8 July 2026
Last updated:
6 October 2026
Show all updates

  1. Full text decision published.

  2. Phase 1 decision announced.

  3. Merger inquiry launched and commencement notice published.

  4. First published.

Case type:
Mergers
Case state:
Open
Market sector:
Utilities
Opened:
8 July 2026

Statutory timetable

Date Action
1 October 2026 Decision announcement
2 September 2026 Launch of merger inquiry
8 July 2026 to 23 July 2026 Invitation to comment

Phase 1

CMA clearance decision

1 October 2026: The CMA has cleared the anticipated acquisition by E.ON SE (through E.ON UK Limited) of OVO Energy Ltd.

Launch of merger inquiry

2 September 2026: The CMA announced the launch of its merger inquiry by notice to the parties.

Invitation to comment: closed

8 July 2026: The CMA is issuing this ‘invitation to comment’ to allow interested parties to submit to the CMA any initial views on the impact that the transaction could have on competition in the UK. The CMA has not yet launched its formal investigation into this transaction. This invitation to comment is the first part of the CMA’s information-gathering process.

To assist it with this assessment, the CMA invites comments on the transaction from any interested party.

Pre-notification

The CMA has received the necessary information from the parties to commence pre-notification.

Contact

  • general.enquiries@cma.gov.uk

For media enquiries, contact the CMA press office.

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