Reading Time: 2 minutesIn a significant development for the energy and industrial sectors, the United Kingdom and the European Union...
Read More- Industry Updates
The New Change of Occupier (CoO) Process for Energy Contracts
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Kate McCann
What Is a Change of Occupier (CoO)?
Why Has the CoO Process Been Updated?

Key Features of the New Process
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Covers All Change Scenarios
Applies to both planned and unplanned changes, whether or not a supplier switch is involved.
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Encourages Timely Notification
Energy suppliers should be informed of the change as early as possible to avoid billing issues or delays.
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Flexible Document Submission
Either the incoming or outgoing occupier — or both — can provide the required evidence electronically.
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Clear Evidence Requirements
Acceptable documents include signed leases, termination notices, TR1 forms, solicitor letters, or business rates bills.
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Allows Case-by-Case Decisions
Suppliers can request alternative documents with justification, recognising that not all occupier scenarios are the same.
What Happens If There’s No Supplier Switch?
What If There Is a Supplier Switch?
What’s Not Covered?
Supporting Documents: What Can Be Accepted?
What’s the Outcome of the Change?
Overall, the revised CoO process represents a significant step forward in fairness, clarity, and operational consistency across the energy sector. It gives businesses a more structured path to manage occupancy changes, reduces ambiguity for suppliers, and helps prevent disputes before they start. With clearly defined timelines, improved guidance on acceptable evidence, and a focus on fair treatment, this change supports a smoother transition for all involved — ultimately benefiting both consumers and suppliers alike.
If you’d like any guidance ont the new change, feel free to contact one of our expert team, or book a free consultation.