Energy Savings Opportunity Scheme (ESOS) – 30th June 2025

MESOS Reporting System Update

The Environment Agency (EA) has confirmed that the Progress Update 1 functionality has now gone live within the MESOS system, allowing all advanced users to submit accordingly.

To initiate and submit your Progress Update 1 you will need to follow the steps below:

• Login at https://manage-energy-saving-opportunities-reporting.service.gov.uk/
• Select ‘Accounts’ section
• Select your organisation account and ‘start a new task’
• Click the green button under ‘Phase 3 Progress Update 1’ titled ‘Start’, this starts the Progress Update 1 workflow

Once the Progress Update 1 is started you can access it as a task in your dashboard and submit this to the regulator once complete.

For organisations qualifying for Phase 3 of ESOS, the deadline for submitting your ESOS Progress Update 1 is the 5^th December 2025.

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