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Are you in need of an ESOS audit? Perhaps you want to become energy efficient before next time?

If you’re a business employing 250 staff or more and/or which has a turnover in excess of £38.9m and a balance sheet of £33.4m, you must conduct mandatory energy assessments every 4 years, or risk a profit and reputation damaging fine.

The Environment Agency (EA) can impose the fines of up to £50,000 at any time for non-compliance.

ESOS (Energy Savings Opportunity Scheme) is a mandatory energy assessment scheme. It explicitly applies to large UK organisations that meet the qualification criteria. 

IU Energy will –

  • Provide a qualified ESOS Assessor to audit your business site(s) 
  • Create a fast-track data collection process
  • Provide expert auditing
  • Present genuine ways of improving your energy efficiency
  • Ensure your assessment is completed on time and submitted to the Environment Agency

Get In Touch

Start your ESOS journey today. Simply fill in the form below or call us on 01752 26 26 26 to speak to Duncan Banks.

What is a large organisation?

A large organisation or undertaking is –

  • Any UK company that either –
    1. Employs 250 or more people, or
    2. Has an annual turnover more than 50 million euro (£44,845,000), and an annual balance sheet total more than 43 million Euros (£38,566,700)
  • An overseas company with a UK registered establishment which has 250 or more UK employees (paying income tax in the UK)

When is the next deadline?

Audits take place every four years, with the last deadline being on 5th December 2019.

There are several routes for compliance, for example if you’re fully covered by ISO 50001 then you don’t need to carry out ESOS assessments as your business is covered by the ISO standard. It may be a good idea to work towards this standard now. 

What is an ESOS compliant energy audit?

In brief, these are audits of the energy used by buildings, industrial processes and transport. Specifically, the audits are to identify cost-effective energy saving measures.

In particular, an ESOS compliant energy audit must expressly meet the following criteria (shortened, full guidance here) –

1. Must be based on 12 months’ verifiable data

2. Must analyse the participant’s energy consumption and energy efficiency

3. Must identify energy saving opportunities

Site visits during an audit

  1. Organisations must conduct site visits as part of their ESOS audits. Although this may be true, it is not necessary to visit every site.
  2. Regardless of the number of site visits, organisations need to ensure they have collected and analysed data for all areas of significant energy consumption.
  3. Organisations with multiple sites or assets which are identical or similar, can take a proportionate approach. Specifically, this means applying the energy saving opportunities identified in their site visits to their wider portfolio.
  4. A sampling approach to reflect the energy consumption patterns of their assets and activities. It is up to your organisation and lead assessor to agree this.

Evidencing methodology

Given these points, you need to explain the approach you took in your evidence pack. In particular, it must reflect the energy consumption patterns and saving opportunities for your portfolio of assets and activities.

Regulators will look for well-reasoned and documented justifications for the approach you took for your compliance audit.

What else does IU Energy do?

In addition to our ESOS and other energy audit services, we supply competitive fixed term energy contracts, and award-winning energy efficient and renewable energy technology. We have also recovered over £450m in Utility Cost Recovery audits.

“Succession Group has found the ESOS process a great experience and a significant benefit to the business, by increasing our awareness of cost savings potential not only in the way we use our offices but also how we use our vehicles.

We are grateful to IU Energy for their expertise and professionalism. We found them to be knowledgeable and easy to work with and have no hesitation in recommending them.”

James Stevenson

Succession Group

ESOS case studies

How much energy is your business currently wasting?

IU Energy is a multi-award-winning business, providing comprehensive energy management services to its B2B clients, including energy reduction solutions, renewables and independent energy procurement.


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