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Energy Management

ESOS Compliance

The Energy Savings Opportunity Scheme (ESOS) is the mandatory energy assessment scheme for large enterprises.

ESOS: Energy Savings Opportunity Scheme

What is ESOS?

The Energy Savings Opportunity Scheme (ESOS) is a mandatory energy assessment scheme for organizations in the UK that meet the qualification criteria. The Environment Agency is the UK scheme administrator.

The deadline for compliance with this UK legislation is 5th December 2019.

Organizations that qualify for ESOS must carry out ESOS assessments every 4 years. These assessments are audits of the energy used by their buildings, industrial processes and transport to identify cost-effective energy saving measures.

Organizations do not need to pre-register with the Environment Agency but must notify the Environment Agency by the set deadline that they have complied with their ESOS obligations. As defined by the Energy Savings Trust.




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Helps you with

  • Ensure compliance to regulations
  • Reduce energy use
  • Cut consumption and emissions
  • In turn reducing costs
  • Implement energy saving measures


Benefits of ISO 50001 Certification

Reduced operating costs

Significant financial savings can be achieved through increased energy efficiency (OFGEM forecast energy prices to rise by at least 20% by 2020).

Improve efficiencies

Encourages a more effective use of your resources, in turn reducing amount of claims, returns, reprocesses and rejections - potentially lower levels of regulatory reporting.

Reduced carbon footprint

Actively set goals to reduce your carbon footprint and people will respond positively to your organization.

Legal compliance

Understand how statutory and regulatory requirements impact your organization and its customers.

Proven business credentials

Independent verification against a globally recognized industry standard speaks volumes.

Win more business

Procurement specifications often require certification as a condition to supply, so certification and verification opens doors.

ESOS compliance

Use Accredited ISO 50001 (energy management) certification as a route to ESOS compliance.

Achieve ESOS compliance with ISO 50001

We provide accredited ISO 50001 certification giving you:

  • Return on investment. ISO 50001 is has been proven to deliver return on investment through sustainable energy efficiency and improved performance.

  • Compliance by ESOS deadline. ISO 50001 can be implemented in less than 12 months and if you already have an Environmental Management System, you'll be roughly 67% ready. 

  • Viable alternative to ESOS Energy Assessments. ISO 50001 is a cost effective alternative to ESOS Assessments and provides additional benefits beyond compliance reporting.

ISO 50001 certification must be issued by an accredited certification body, where the scope of accreditation covers the industry sector in which you operate.

NQA was the first certification body to achieve accreditation against the full scope of accreditation for ISO 50001 certification from UKAS (the United Kingdom Accreditation Service).

We can help you plan, implement and achieve accredited ISO 50001 certification, whatever your organizational structure and activity.

Avoid unwanted impacts from ESOS

Compliance deadlines have passed and enforcement notices for non-compliance will be issued by the Environment Agency. Non-compliance could incur the following:

  • Fines of up to £50,000

  • Charges of an additional £500 per day for every day of non – compliance for up to 80 days

Public naming and shaming of your corporate brand for its failure to comply.

Who qualifies for ESOS?

- any UK undertaking that meets either one or both of the conditions below:

  • it employs 250 or more people

  • it has an annual turnover in excess of 50 million euro (£38,937,777), and an annual balance sheet total in excess of 43 million euro (£33,486,489).

You also must take part in ESOS if your undertaking is part of a corporate group which includes another UK undertaking that meets either of these conditions. See the Environment Agency guidelines for more information about ESOS compliance and enforcement here

Steps to Certification

  1. Step 1

    Complete a Quote Request Form so that we can understand your company and requirements. You can do this by completing either the online quick quote or the online formal quote request form. We will use this information to accurately define your scope of assessment and provide you with a proposal for certification.

  2. Step 2

    Once you’ve agreed your proposal, we will contact you to book your assessment with an NQA Assessor. This assessment consists of two mandatory visits that form the Initial Certification Audit. Please note that you must be able to demonstrate that your management system has been fully operational for a minimum of three months and has been subject to a management review and full cycle of internal audits.

  3. Step 3

    Following a successful two stage audit, a certification decision is made and if positive, then certification to the required standard is issued by NQA. You will receive both a hard and soft copy of the certificate. Certification is valid for three years and is maintained through a programme of annual surveillance audits and a three yearly recertification audit.

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