The Phase 3 Progress Update 1 dataset is a vital resource for understanding the current landscape of energy compliance in the UK. With the deadline for proposed measures approaching, organisations must act swiftly to ensure compliance and contribute to the nation’s energy savings goals.
The Environment Agency released the Phase 3 Progress Update 1 dataset in August 2026, marking a significant step in the ongoing efforts to monitor and enhance energy compliance among ESOS (Energy Savings Opportunity Scheme) participants. This dataset includes information submitted by participants by June 5, 2026, following their notifications of compliance (NOCs) and action plans.
Key Highlights from the ESOS Phase 3 Progress Update 1 Data
The Phase 3 Progress Update 1 dataset provides valuable insights into the energy-saving measures proposed and implemented by participating organisations.
Energy Saving Measures and Implementation Progress
The dataset includes information on:
- The names of participating organisations and updates on their progress with energy-saving measures;
- Total projected energy savings from each measure;
- Whether proposed measures have been implemented;
- Whether measures were completed by the dates specified in the organisation’s Action Plan.
Energy Consumption Reductions
The data also provides information on reductions in energy consumption for the periods:
- 6 December 2024 to 5 December 2025
- 6 December 6 2023 to 5 December 2024.
How Energy Savings Are Calculated
The dataset provides transparency around the methods used to calculate and report their projected energy savings.
Updated ESOS Phase 3 Datasets
In conjunction with the release of the Phase 3 Progress Update, the Environment Agency has also updated the Phase 3 Notification of Compliance (NOC) and Phase 3 Action Plan datasets.
These updates reflect all data submitted up to June 5, 2026, helping stakeholders access the most current information. about ESOS Phase 3 compliance and the energy saving measures being taken by participating organisations.
ESOS Phase 3 Compliance Rates and Enforcement
A noteworthy statistic from the latest updates is that more than 86% of ESOS participants are now compliant with the requirements surrounding NOCs, action plans, and initial progress updates.
However, organisations that have not fulfilled their obligations may face investigations by the relevant compliance bodies. Enforcement actions may be taken against those organisations who have failed to submit the required documentation.
What Should Organisations Do If They Have Not Yet Complied?
If your organisation has not submitted a Notification of Compliance (NOC), Action Plan, or initial progress update, it is crucial to act promptly. Contact the Environment Agency immediately to understand your next steps and mitigate the risk of enforcement action.
You may also wish to seek professional advice to better understand your organisation’s ESOS obligations and identify the actions required to bring your reporting and compliance requirements up to date.
Find out more at: ESOS Compliance or energy consultancy page
The Next ESOS Phase 3 Progress Update Deadline
While the Progress Update 1 data has now been published, organisations should also be looking ahead to their next reporting requirements.
The second ESOS Phase 3 Progress Update is due by 5 December 2026. Organisations should review the commitments made within their Action Plans and continue monitoring progress against planned energy-saving measures.
Taking action early can help ensure the required information is available ahead of the deadline and reduce the risk of last-minute reporting issues.
[Read more at: ESOS Service page reporting requirements]
Keeping Your MESOS Account and User Details Up to Date
Organisations are encouraged to regularly review and update their contacts and users within the MESOS reporting account.
Some simple best practices include:
- Removing outdated contacts and users.
- Adding new users where responsibilities have changed.
- Ensuring relevant people within the organisation know who has access to the MESOS portal.
Keeping user details up to date can help ensure that important ESOS communications and reporting responsibilities are not missed.
Need Help with ESOS Compliance?
Understanding and managing ESOS requirements can be complex, particularly when organisations are tracking multiple energy-saving measures and reporting deadlines.
Survey and Test can help organisations understand their ESOS obligations and support their wider energy efficiency and compliance requirements. If you need advice about ESOS reporting or would like to discuss your organisation’s requirements, our team is here to help.
Together, we can make strides towards a more energy-efficient future.
Contact Survey and Test today and discuss your ESOS and energy compliance requirements.