Find an ESOS Lead Assessor

Are you worried about energy costs in your organisation? Not sure how to comply with new energy legislation? Why not call in the experts?

The EI has had two of its Registers of energy professionals approved as meeting the required standards to act as ESOS Lead Assessors. They are the Register of Professional Energy Consultants and the register of Chartered Energy Managers.

Register of Professional Energy Consultants (RPEC)

RPEC is an expert register of professional energy consultants in a range of technical disciplines and across a range of sectors. All RPEC consultants are chartered and have a wide range of experience.

The RPEC register is searchable by sector, technology, skill and by name and by company of consultant. It also indicates the level of skill and expertise that the individual has in relation to each criterion. All RPEC consultants are approved to act as ESOS lead assessors and many provide a free 20 minutes consultancy service.

Chartered Energy Managers

This register lists all those who have been assessed as competent to undertake the role of ESOS Lead Assessor within their organisation. Some have moved into consultancy roles and may be available to be contracted to perform ESOS assessment on a consultancy basis.

The list distinguishes those that are in-house from those offering consultancy services and outlines their main areas of competence.

You can find here information on how to qualify as Chartered Energy Manager

All those on both registers are required to have Chartered status and all follow a Code of Conduct . These can be found here:

Complaints procedure

Find here information about the complaints procedures for our registers.


If you have questions about finding an approved ESOS Lead Assessor, please contact us.