Energy Savings Opportunity Scheme (ESOS)

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Understanding ESOS

ESOS is a mandatory energy assessment scheme enforced by the Environment Agency. It requires qualifying organisations to report on their energy usage every four years. The reporting requirements can be complex, and fines levied for non-compliance.

Our service gives you access to ESOS Lead Assessors. These assessors can oversee the collection and reporting of data for compliance.

Your organisation needs to comply with ESOS for the current reporting phase (up to June 2024) if the following applies:

  1. The company employs 250 or more people or
  2. The company has an annual turnover in excess of £44 million, and an annual balance sheet total in excess of £38 million

Risks & Penalties of Non-Compliance

Penalties for failing to comply fully, or for false or misleading statements can range from between £5,000 and £90,000. The Environment Agency has handed out hundreds of enforcement notices in the first two phases with the names of the companies falling foul of the deadline being named, risking an organisation’s reputation too.

The Environment Agency audits evidence packs and the Phase 2 auditing programme resulted in only 32% of reports being compliant; 63% were compliant with remedials; and 5% were non-compliant.

Unlocking Benefits through ESOS Compliance

Although the requirements of ESOS are complex, the legislation offers an opportunity for organisations to optimise energy efficiency, allowing significant savings on energy spend.

The scheme is estimated to lead to £1.6 billion net benefits to the UK (ESOS Impact Assessment DECC0142, 24 November 2014), with the majority of these being directly felt by organisations as a result of energy savings.


ESOS Phase 3 Deadline Extension

The deadline for compliance has been extended to 5 June 2024. This may seem distant but gathering energy consumption data can be time-consuming, especially if doing this for the first time, or for organisations spread over a number of sites, or those who have undergone a number of significant changes between phases.

If your organisation was in scope for ESOS phase 1 & 2, it is very likely that phase 3 also applies to you too, however, this may not be the case if the size of your company has changed during this time.

Schedule a survey with Briar's ESOS experts and discover the best compliance solutions for your organisation.

Ready to achieve ESOS compliance and optimise your energy usage? Get in touch with our experts today!


Achieving ESOS Compliance: Key Steps and Options

  1. Calculate your total energy consumption
  2. Identify your areas of significant energy consumption
  3. Complete the required audits for one year’s consumption, under the direction of a lead assessor
  4. Submit your ESOS notification of compliance to the Environment Agency
  5. Keep records of compliance in an evidence pack

ISO 50001 can be a route to ESOS compliance. It is a voluntary international standard that applies to organisations of any size, and provides requirements for establishing, managing and improving energy consumption and efficiency. We can guide organisations through the whole process using a practical and attainable approach to achieve certification.

When you choose to engage with Briar for your ESOS reporting, you can rest assured that you will have a team of highly qualified and registered lead assessors by your side. They will carefully review and guide you through the entire process, ensuring that you achieve full ESOS compliance.


Support Available to You

Comprehensive ESOS Audits

Our team of highly skilled energy consultants will conduct a thorough assessment of your organisation's energy usage, identifying areas where significant savings can be made. We will analyse your energy data, review your processes, and provide you with a detailed report outlining cost-effective measures to improve efficiency.

Tailored Energy Efficiency Solutions

We understand that each organisation has unique requirements. Based on the findings from the audit, we will develop a customised energy efficiency plan that aligns with your business goals and budget. Our solutions encompass a wide range of strategies, including equipment upgrades, behavioural changes, renewable energy integration, and more.

Streamlined Compliance Process

Navigating the complexities of ESOS compliance can be daunting. Our team will guide you through every step of the process, ensuring that all necessary documentation is prepared accurately and submitted on time. By partnering with us, you can have peace of mind knowing that your compliance obligations are met efficiently and effectively.


Contact us

To get started, all you need to do is contact us. Give us a call today and you will be connected with one of our knowledgeable ESOS lead assessors. We guarantee that within 15-30 minutes, we will design a customized ESOS strategy tailored to your specific needs. And don't worry, we won't keep you waiting. The same day, you will receive a comprehensive strategy report along with a detailed fee quotation.

Our expert guidance will pave the way for your ESOS compliance journey. Whether you have questions, need assistance, or simply want to ensure that you are ticking every box for energy compliance, we are here to help. You can reach us at 01384 397777 or simply fill out the contact form below.



Download our A to Z guide, which covers everything you need to know about energy compliance. From A for Assessments to Z for Zero Carbon, this guide will ensure that you have all the information you need to stay on top of your energy compliance obligations.

A-Z of Compliance

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Energy Savings Opportunity Scheme

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