ESOS assessments in the South East

Ensure your business meets ESOS Phase 4 obligations with expert guidance from a certified ESOS Lead Assessor in the South East.

Helping large organisations reduce energy use

If your organisation is required to comply with ESOS Phase 4, this doesn’t have to be a simple tick-box exercise. It’s an opportunity to identify meaningful energy savings and improve efficiency.

EEA Action Ltd provides fully compliant ESOS assessments that are clear, practical, and free from unnecessary jargon. Our work is led by a qualified ESOS Lead Assessor with experience across commercial buildings, transport, and industrial processes.

Based in Kent, we support organisations across the South East and nationwide.

What is ESOS?

The Energy Savings Opportunity Scheme (ESOS) is a mandatory energy assessment scheme for large UK organisations, administered by the Environment Agency. Qualifying businesses are required to:

  • Measure total energy consumption across buildings, transport, and industrial processes

  • Carry out detailed energy audits to identify cost-effective savings

  • Submit a compliance notification to the Environment Agency every four years

ESOS applies across the UK and is currently in Phase 4, with a compliance deadline of 5 December 2027.

Do I need to comply with ESOS?

Your organisation is required to participate in ESOS if, on the qualification date of 31 December 2026, it meets either of the following criteria:

·        Employs 250 or more people, and/or

·        Has an annual turnover exceeding £44 million and an annual balance sheet total above £38 million

These rules also apply to corporate groups and UK subsidiaries of overseas companies.  

What’s involved in an ESOS assessment?

To comply with ESOS, your organisation must appoint an ESOS Lead Assessor recognised by the Environment Agency. The Lead Assessor will:

  • Measure your total energy consumption

  • Identify areas of significant energy use, covering at least 95% of total consumption

  • Carry out compliant energy audits across buildings, transport, and industrial processes

  • Develop practical recommendations to reduce energy use and improve efficiency

  • Compile a comprehensive ESOS report

  • Support board-level sign-off of the report

  • Assist with submission of the compliance notification to the Environment Agency

We take care of everything — from scoping the project and carrying out site audits to delivering a fully compliant ESOS report ready for submission to the Environment Agency.

Why choose EEA Action Ltd for your ESOS audit?

We’re not a faceless consultancy. EEA Action Ltd is a trusted name in energy assessment, known for their attention to detail and jargon-free friendly service. When you work with us, you get:

• A qualified ESOS Lead Assessor registered with Elmhurst Energy and recognised by the Environment Agency.

• Local expertise based in Kent but working nationwide.

• Honest, practical advice on energy and cost saving measures.

• A wealth of experience across retail, leisure, warehousing, offices and more.

• Transparent pricing.

Whether you need a full audit, are confused about your organisation's status regarding ESOS or need help reviewing existing data, we’ll make sure you meet your legal duties without overcomplicating things

When is an ESOS Lead Assessor not required?

An ESOS Lead Assessor is not needed in the following cases:

  • If your organisation’s total energy consumption during the compliance period is less than 40,000 kWh. In this situation, the assessment must instead be reviewed and signed off by two board-level directors.

  • If all of your energy use (100%) is covered by a valid ISO 50001 certification. This provides a fully recognised alternative route to compliance, eliminating the need for a Lead Assessor.

Penalties for Non-Compliance

Failing to comply with ESOS can lead to serious consequences from the Environment Agency, including:

  • Fixed penalties of up to £50,000 per infringement (these can accumulate)

  • Daily fines of up to £500 per day, for up to 80 days

  • Publication of your non-compliant status on the Government’s website

  • Enforcement notices requiring immediate corrective action

Penalties can be triggered by failing to carry out energy audits, maintain proper records, or submit a compliance notification by the deadline. Complying proactively is far more cost-effective than facing fines or reputational damage.

Who is exempt from ESOS?

  • Organisations below the financial and staffing thresholds outlined earlier are not required to comply.

  • Certain public bodies are also exempt if they are classified under the Public Contracts Regulations 2015 (or Scottish equivalents) and do not operate as an “undertaking”, meaning they are not engaged in economic or commercial activity. Examples include:

  • Local authorities

  • NHS trusts

  • Government departments

  • Most universities and publicly funded schools

However, public sector organisations may still need to comply if:

  • They operate trading arms or subsidiaries of public bodies, and

  • These entities meet the ESOS criteria for large undertakings (e.g., 250+ employees, £44m+ turnover, £38m+ balance sheet total)

  • Such subsidiaries are considered “undertakings” and must comply with ESOS unless they are fully covered by an ISO 50001-certified energy management system.

What happens next?

Here’s how the process works with an ESOS assessment with EEA Action Ltd:

  • Free consultation - we confirm whether your business qualifies for ESOS, outline your obligations and how we can add value.

  • Data collection and site audits - we review energy use and build energy consumption profiles.

  • Report and recommendations - clear, actionable and costed advice on how to reduce energy overheads including life-cycle cost analysis (LCCA) of proposals.

  • Board-level review and sign-off - we’ll present our findings and guide you through every step.

  • Submission and support – we prepare your evidence pack and help you submit the compliance notification and outline your action plan and annual reviews going forward.

  • We’re with you from start to finish, no guesswork, no stress.

Book an ESOS Consultation Today

The sooner you start, the more time you’ll have to gather data, schedule site visits, and implement energy-saving measures. Whether you’re preparing for your first ESOS audit or aiming to improve on previous phases, we can guide you every step of the way.