ISO Isle of Man: Quality, environmental and information security standards
Telephone: 01624 612627
Qualified ESOS Assessors - Your route to cost-effective and benefit driven ESOS compliance

Who has to comply with ESOS?

Large organisations with more than 250 employees or a turnover in excess of €50M will be required to review total energy use from their buildings, transport and industrial processes.

Who benefits from ESOS?

It isn’t all bad news! The principal beneficiaries will be the organisations who embrace and implement the energy saving initiatives that are recommended in the audits. Reduced energy costs translate directly into increased profits.

What is an ESOS Assessment?

If your organisation falls under the ESOS criteria, you will need to engage with an Authorised ESOS Assessor, like us. The ESOS Assessor will audit your total energy consumption, identify cost-effective energy efficiency recommendations and then report to the Environment Agency.


Qualifying organisations will need to have an initial audit completed by the 5th December 2015, and at least 4 yearly intervals from that point on.

Embracing International Standards

ISO 50001:2011 (Energy Management System) is an internationally recognised standard for best practice energy efficiency and is permitted as a compliant solution to ESOS requirements. We also are authorised to help businesses implement this standard and can ensure not just compliance with ESOS, but also recommend wider reaching energy efficiency strategies designed to impact positively on your bottom line – including accurate calculations of pay-back periods.

Penalties for non-compliance?

The penalties for non-conforming range from fixed penalties of £5,000 up to £50,000, plus ongoing penalties for failure to resolve non-compliance. Why are the penalties so sever - simple the UK has legally binding emission reduction targets so need to ensure that major organisations introduce a program of regular energy audits to comply with Article 8 of the EU Energy Efficiency Directive.

How we can help?

We are qualified ESOS Lead Assessors. But we don’t just help with compliance – we are commercially focused and know that each business we work with needs to see a very real benefit to this expense and disruption, something we also try to minimise. We regularly achieve the sort of energy efficiency that saves our clients money, and helps with their Corporate Social Responsibility and commitment to a less polluted planet. It really can be a win-win situation.

Thank You

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If you require any further assistance, please contact ISO IOM by calling 01624 612627 or email