ESOS Phase 4

The Energy Savings Opportunity Scheme (ESOS) is back for another cycle. Phase 4 officially began on 6 December 2023, and while the final compliance deadline of 5 December 2027 may feel a long way off, now is the time to start preparing.

Is your business eligible for ESOS phase 4?

What needs to be done

Following on from phase 3, the following changes have now been introduced in phase 4:


  • Include action plan progress, or explanations as to why progress has not been made
  • Display Energy Certificates (DECs) and Green Deal Assessments (GDAs) are no longer valid routes to compliance.
  • While net zero reporting will not yet be mandatory, you can choose to adopt the new PAS 51215 standards for voluntary energy and decarbonisation reporting

For more details about ESOS phase 4, you can find our full article here.

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