The Energy Savings Opportunity Scheme (ESOS) is an energy assessment and energy saving scheme and is established by the Energy Savings Opportunity Scheme Regulations 2014 (ESOS Regulations).
The scheme applies to large undertakings and groups containing large undertakings in the UK.
An undertaking, as defined in the Companies Act 2006, is:
a corporate body or partnership
an unincorporated association carrying on a trade or business, with or without a view to profit
The scheme is estimated to lead to £1.6bn net benefits to the UK, with the majority of these being directly felt by businesses as a result of energy savings.
If after reading this guide you are still unsure about particular aspects of how to comply with ESOS then you should contact the Environment Agency ESOS help desk: ESOS@environment-agency.gov.uk.