ESOS is a mandatory energy assessment scheme for a range of large organisations in the UK

Your ESOS actions

  • Calculate your total energy consumption
  • Identify your areas of significant energy consumption
  • Find out whether ISO 50001, DECs or GDAs cover any of your areas of significant energy consumption
  • Identify whether ESOS compliant energy audits have been or need to be carried out for the areas of significant energy consumption not covered by ISO 50001, DECs or GDAs
  • Appoint a Lead Assessor
  • Notify the Environment Agency
  • Keep records

The Energy Savings Opportunity Scheme is being managed by the Environment Agency and is expected to help reduce energy bills for large enterprises by at least £300 million in 2016.

What you need to do

ESOS regulations require more than 7,000 large organisations in the UK to conduct energy audits of buildings, industrial processes and transport to identify cost-effective energy saving measures.

There are threats of large fines for non-compliance.

Audits will need to be repeated every four years. Organisations must then notify the Environment Agency by a set deadline that they have complied with their ESOS obligations.

We can help you through the ESOS maze, with access to auditors and Lead Assessors to deliver compliance.

Our software platform can help you and your in-house team prepare for ESOS and work effectively with your chosen Lead Assessor by:

  • Measuring energy use and reducing the cost and time to carry out site visits and audits
  • Identifying energy efficiency and energy management opportunities
  • Evaluating opportunities using life-cycle cost analysis (LCCA)
  • Storing data to evidence ESOS compliance

Who is affected?

The scheme focuses solely on “large undertakings” – those that employ at least 250 people or that have annual turnover or more than €50 million and a balance sheet in excess of €43 million.

Most public sector bodies are excluded, but some, including many universities could be drawn into ESOS. Net benefit of the policy, according to government estimates, will be conservatively around £1.9 billion between 2015 and 2030.


December 5th 2015 was the first ESOS compliance deadline and the regulations bring into force Article 8 of the EU Energy Efficiency Directive.

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