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What is ESOS?

Short for Energy Savings Opportunity Scheme, ESOS is mandatory energy assessment & energy saving identification scheme for small businesses/enterprises.


 Non-compliance can result in a £50,000 fine plus an additional £500/day until compliance is achieved. Eligible companies have until 5th December 2015 to comply.


What Is The Qualifying Criteria?

You are in the scope of ESOS if your business;

a) Employs 250 or more staff.

b) Has fewer than 250 employees, but has a turnover of €50m & a balance sheet exceeding €43m.

c) Is Part of a corporate group which includes an undertaking which meets either of the two criteria listed above.

 Organisations that are required to comply with the Public Contracts Regulations 2006 or the Public Contracts Regulations (Scotland) 2012 are exempt from the scheme.

Key Steps

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What Is A Lead Assessor?

A lead assessor is an energy management and energy auditing professional who has demonstrated competence as a lead assessor and registered with a professional body who’s register has been approved by the environment agency (first register published July 2014).

The purpose of this role is to agree methodology for new audits & timetables, agree a sampling approach & sights to visit. They then identify energy saving opportunities, cost of saving methods and determine energy use profiles. The assessor will then present recommendations and review ESOS assessment and maintain an ESOS energy pack to substantiate the audit and its findings & recommendations.

Why Do I Need A Lead Assessor?

To comply with ESOS, it is mandatory that energy audits must be carried out or overseen/approved by an approved lead assessor.

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