Energy Savings Opportunity Scheme (ESOS) Regulations 2014

The Energy Savings Opportunity Scheme Regulations apply to large enterprises.
ESOS was introduced in July 2014, with a first phase compliance date of 5 December 2015, second phase compliance date 5 December 2019
JPC offers a complete range of support services for ESOS including Lead Assessor.

Do the regulations apply to you?

They apply to ‘large’ organisations, that is those employing at least 250 people or with a turnover of more than €50m and a balance sheet of more than €43M on 31 December 2014. The Regulations apply to the whole of the UK. Public bodies, as defined by the Public Contracts Regulations 2006, are not included. The 31 December 2014 was the phase one qualification  date – you do not need to inform the Environment Agency (or in Scotland SEPA; Wales NRW or Northern Ireland  NIEA).

For the second phase of ESOS the qualification date is 31 December 2018 with a compliance date of 5 December 2019.

What must you do to comply?

Qualifying organisations must measure a minimum of 90% their energy use (buildings, processes and transport); carry out energy audits to quantify their energy use and identify cost-effective improvements on a four-year cycle with the first reporting date being 5th December 2015. There are three ‘alternatives’ to the audit requirement, i.e. certification to ISO 50001 – for 100% of energy use – including transport; a Green Deal Assessment; or a Display Energy Certificate (DEC). There is no requirement to implement recommendations made by the assessment. The ESOS assessment must be signed off by a board level director and an ESOS lead assessor. A British Standard PAS (51215:2014) has been published to provide the competence specification for Lead Assessors, who are listed on the 13 registers approved by the Environment Agency. For more information on the registers, click here

Why have the Regulations been introduced?

The UK has an obligation to implement Article 8 of the Energy Efficiency Directive as part of the UK strategy to reduce carbon emissions.


The regulations came into force on 17 July 2014. 31 December 2014 is the qualification date—no action required. The compliance reporting deadline is 5th December 2015. As a result of low levels of compliance by the 5 December the Environment Agency has deferred taking enforcement action – the compliance date has not changed.  As of May 2016 no organization has been fined or named for non-compliance.
We recommend that if you are covered by ESOS you should ACT NOW by understanding the ESOS requirements, developing an ESOS ‘strategy’, collecting data and if audits are needed, undertaking these sooner rather than later – that way you can gain more benefit from them.

How can John Pooley Consultancy help you?

  • Advising on ESOS compliance – initial advice at no cost
  • Helping you to develop an effective ESOS strategy
  • Acting as a Lead Assessor—John Pooley is approved through the Register of Professional Energy Consultants
  • Undertaking audits, updating audits and reviewing audits
  • Supporting the implementation of ISO 50001
  • Supporting the implementation of ESOS recommendations
  • Energy management consultancy and training