Energy Savings Opportunity Scheme (ESOS)—ESOS assessment, reporting and compliance
Produced in partnership with Ramboll Environ
Energy Savings Opportunity Scheme (ESOS)—ESOS assessment, reporting and compliance

The following Environment guidance note Produced in partnership with Ramboll Environ provides comprehensive and up to date legal information covering:

  • Energy Savings Opportunity Scheme (ESOS)—ESOS assessment, reporting and compliance
  • Brexit impact
  • Requirement for an ESOS assessment
  • Steps to compliance
  • Consequences of non-compliance
  • Developments

ESOS is an energy assessment and energy savings scheme. It is mandatory for organisations that meet the qualification criteria, ie large undertakings and their corporate groups. It derives from the Energy Efficiency Directive 2012/27/EU, art 8, which requires EU Member States to ensure that enterprises that are not small and medium enterprises (SMEs) are subject to an energy audit carried out at least every four years.

The requirements of the Energy Efficiency Directive, art 8 have been implemented in the UK through the Energy Savings Opportunity Scheme Regulations 2014, SI 2014/1643 (ESOS Regulations). The ESOS Regulations were made on 24 June 2014 and came into force on 17 July 2014.

Minor amendments have been made to the ESOS Regulations by the Energy Savings Opportunity Scheme (Amendment) Regulations 2015, SI 2015/1731 and the Energy Savings Opportunity Scheme (Amendment) (EU Exit) Regulations 2018, SI 2018/1342.

Organisations that qualify under ESOS must undertake an energy assessment and audit their total energy consumption. The audit needs to be conducted or reviewed by a ‘lead assessor’, who must be a member of a professional body approved by the scheme administrator.

This note covers ESOS assessments, reporting and compliance. It is part of a series of notes on ESOS, see Practice Notes:

  1. Energy Savings Opportunity Scheme (ESOS)—qualification and organisational structures

  2. Energy Savings Opportunity Scheme (ESOS)—administration, enforcement and appeals

  3. Energy Savings Opportunity