What is ESOS Compliance?
ESOS compliance (Energy Saving Opportunity Scheme) was launched by the Department of Energy and Climate Change (DECC). This scheme is a mandatory energy assessment and energy savings identification scheme for ‘Large Enterprises’ that was undertaken in December 2015. ESOS has now entered Phase 3 and qualifying companies have until December 5th 2023 to comply.
The ESOS Compliance scheme is estimated to lead to £1.6 billion net benefits to the UK, with the majority if these being felt directly by businesses as a result of energy savings. ESOS energy audits have the potential to increase business profitability and competitiveness by implementing energy efficiency measures identified through audits. These can have wider benefits such as reducing other costs (e.g. maintenance costs) and also increasing employee engagement within your organisation.
Does your organisation qualify?
EU member states must introduce independent and cost-effective energy audits for all large enterprises.
Large enterprises are defined as:
- Employing more than 250 employees
- And /or has an annual turnover in excess of £44 million and an annual balance sheet total in excess of £38 million
Please note that the public sector is not required to participate
How do you comply with ESOS?
In simple terms, an ESOS Assessment requires you to do three things:
- Measure your total energy consumption
- Conduct energy audits to identify cost-effective energy efficiency recommendations
- Report compliance to the Environment Agency (as the scheme administrator )
Organisations may not need to undertake an ESOS Assessment if they’re fully covered by ISO 50001.
The deadline for the 3rd Phase compliance period is 5 December 2023, by which time qualifying businesses will have to achieve compliance with the regulations and notify the Environment Agency.
The Energy Savings Opportunity Scheme (ESOS) carries with its reporting mandate some hefty penalties for non-compliance, so don’t delay in commencing your ESOS compliance activity.
How we can help
Blackmores specialise in helping you to implement and maintain your ESOS Assessment across London, Hertfordshire and Bedfordshire, and UK wide. We can also assist with International locations, having experience of working in 27 other countries.
- Conduct a Gap Analysis – To help establish your strengths and weaknesses.
- ESOS E-learning – Learn at your own pace with our online courses via the isologyhub and Carbonologyhub
- ESOS isologists® – We have a skilled team of consultants to help you carry out Energy Audits. From London to the UAE, we have experience working internationally across many sectors.
- Internal Audits – We can help you to plan and conduct Internal Audits to verify your ESOS compliance
We have a FREE ESOS guide available on request, simply Contact Us.
We also have two ESOS focused episodes available on The ISO Show:
Videos

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