ESOS Certification

ESOS Certification



Stroma Certification's ESOS Certification scheme is designed to certify an energy assessor in line with the requirements of the Energy Savings Opportunity Scheme. Our ESOS Register is approved by the Environment Agency on behalf of the Department for Business, Energy & Industrial Strategy. By becoming an ESOS Lead Assessor, an energy assessor can work in the commercial sector to help businesses assess and reduce their energy consumption.

First year membership £0. Application fee pre-assessment session £250. Two-day training course £1,850. Annual membership renewal £250
All quoted prices exclude VAT.




What is the Energy Savings Opportunity Scheme?

ESOS is a mandatory energy assessment scheme for all UK organisations who meet a given criteria, namely:

Organisations who meet these criteria must undergo an ESOS audit every 4 years to assess their energy consumption. There is a requirement for organisations to notify the Environment Agency that they are compliant with the ESOS regulations within a given compliance period. The first compliance period was defined as December 2015.


Why join our ESOS Certification scheme?

ESOS audits can only be undertaken by a qualified ESOS Lead Energy Assessor. ESOS compliance is mandatory for UK businesses who meet set staffing and turnover requirements. By adding your name to our ESOS Lead Energy Assessor Register you too can provide a combination of scoping, assessment and advisory services to a diverse range of organisations. As an ESOS assessor you can deliver, oversee and approve ESOS energy audits.



Applying to become an ESOS Lead Assessor

Before you apply we would encourage energy assessors to read our ESOS members pack which details all requirements for certification as an ESOS Lead Energy Assessor. If you have any questions you can also request a callback from our friendly customer team:



ESOS application process

We would encourage applicants to download and read our ESOS members pack which provides information and the requirements for ESOS Certification. Our friendly customer service team is also available to answer any of your questions so please request a callback using our online form.



DEA Certification

Speak to our friendly customer team on
0845 621 11 11 (ext.622)

DEA Certification

Complete our customer callback form and we will call you to discuss your application


Candidates will need to be able to demonstrate sufficient competence in accordance with the requirements of PAS 51215. This includes a minimum length of two years of professional energy assessment and energy audit experience. We'll respond to your application within 72 hours to confirm your pre-assessment and training dates.

The pre-assessment session takes place with a member of our ESOS team. This individual discussion is tailored to assessing your skillset, analysing your application and measuring your experience against the scheme requirements.



Certification Scheme Information

Stroma Certification's ESOS Certification scheme documents are made available to the public, applicants and certified Organisations through a downloadable ESOS Members pack that contains documents including the following:

ESOS Certification Application Form

To be completed for those Organisations requiring certification or alternatively the online application can be completed.

Scheme Handbook

Documents the certification scheme processes for granting, refusing, maintaining, renewing, suspending, restoring or withdrawing certification or expanding or reducing the scope of certification.

Impartiality Policy

Documents Stroma Certification's commitment to ensuring impartiality in all aspects of our certification and business activities. Further information is also available on the Consumer Advice page.

Complaints & Appeals Policy

Documents how a complaint or appeal can be notified to Stroma Certification and how it will be dealt with. Further information is also available on the Consumer Advice page.

Support Policy

Documents the means by which Stroma Certification can be contacted concerning ESOS certification and other business related activities.

If you are unclear on any aspect of the certification process please contact Stroma Certification by emailing info@stroma.com or telephone 0845 621 11 11.



Membership Benefits

Approved ESOS Register

Individual business analysis

Technical Support

Dedicated ESOS trainers

apply now




4 Pioneer Way, Castleford, West Yorkshire, WF10 5QU

T | 0845 621 11 11*

©Stroma Certification Ltd 2017

*Calls cost 7p per minute plus your phone company's network access charge or call 01977 665420.