The Energy Savings Opportunity Scheme (ESOS) is a mandatory government initiative to promote energy efficiency among large businesses.

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Why work with us

Our Lead Net Zero consultant Amaad Ahmed talks through the ESOS phase 3 requirements and Amber’s ESOS experience to date.


Compliance rate


clients for ES0S Phase 2


in-house ESOS Lead Assessors

Does your business need to comply with ESOS?

You will need to comply with ESOS if your organisation has over 250 members of staff, or a turnover of over £44.1m or an annual balance sheet of over £37.9m, or is part of a larger organisation, which falls into any of the above.

The deadline for ESOS Phase 3 has been revised from 5 December 2023 to 5 June 2024.

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Updated guidance

On the 29th of November, the Environment Agency released updated guidance, which stipulates that participating organisations will need to audit at least 95% of their total energy consumption and increases the amount of paperwork involved – with a greater onus to deliver more in-depth analysis of identified opportunities.

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What we do

We manage your business’ ESOS compliance through the following steps

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Appoint one of our lead assessors to work with you directly

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We report on all areas of your business’ energy use

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Submit compliance notifications to the Environment Agency

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Maintain an evidence pack and support you with building your action plan

Simply get in touch to request an ESOS compliance quote, or an ESOS audit.