ESOS Phase 4 Compliance & Reporting

Display Energy Certificates (DECs) and Green Deal Assessments (GDAs) have been removed as valid compliance routes. Organisations that have previously relied on these must identify and plan for alternative approaches

Since 2024, organisations must report progress against their ESOS action plan every year, not just at the four-yearly deadline. This includes explaining any actions that have not been achieved and providing justification for delays. Non-compliance risk now applies year-round, and organisations that are not actively managing their action plans face ongoing exposure. 

Organisations subject to ESOS may also have obligations under Streamlined Energy and Carbon Reporting (SECR). Get in contact with our team to find out more.
 

Action plans must now formally document planned actions and clearly indicate which are complete, in progress, or delayed. Justification must be provided for anything not achieved. This is a significant step up from Phase 3, where action plans were often high-level and rarely scrutinised.

Regulators are placing greater emphasis on data quality, board-level sign-off, and evidence that ESOS is being taken seriously as a business process. Expect closer scrutiny of evidence packs and reporting methodology.

Phase 4 reinforces the expectation that ESOS compliance connects to your broader decarbonisation strategy. ESOS is shifting from a standalone audit to a component of continuous energy management, with senior-level visibility and clear links to net zero objectives.

If your organisational status on 31st December 2026 meets the ESOS qualification criteria, your deadline for compliance notification to the Scheme Administrator is 5th December 2027. Annual action plan reporting obligations for phase 3 apply now, regardless of this deadline.

Our experts will assess whether your organisation qualifies under the ESOS regulations, clarify your compliance route, and confirm your reporting deadlines, giving you a clear picture of what is required and when.

Our qualified ESOS Lead Assessors carry out a thorough assessment of your organisation's energy consumption, identifying:

-    Current energy consumption patterns and trends across your estate
-    Your most energy-intensive operations and assets
-    Cost-effective efficiency opportunities with realistic savings potential
-    Any compliance gaps in your existing reporting or data collection
 

We guide you through the full reporting process, including:

-    Accurate energy data collection and verification
-    ESOS portal submission and compliance documentation
-    Evidence compilation for the Scheme Administrator
-    Strategic energy management planning and annual action plan updates
 

• ESOS energy audits led by qualified ESOS Lead Assessors
• Independent analysis of your energy consumption across all sources
• Identification of efficiency opportunities and savings potential (typically 10–30%)

• Guidance on accurate and efficient energy data collection processes
• Support with reporting systems and workflows to meet ESOS requirements
• Preparation of a fully compliant evidence pack, with support in the event of a regulator audit

• Corporate strategies to manage and reduce energy consumption
• ISO 50001 Energy Management System certification support, for organisations choosing this as their compliance route
• Long-term energy cost optimisation aligned with net zero objectives

• Expert navigation of the ESOS online portal and compliance notification process
• Annual ESOS action plan generation and progress updates
• Ongoing guidance as ESOS regulations evolve towards Phase 4

• For organisations required to comply with ESOS-equivalent schemes in EU countries, our global network provides local energy experts to carry out audits in any location

• Trusted by leading organisations worldwide, with a proven track record in energy compliance
• Network of qualified ESOS Lead Assessors and energy compliance specialists across the UK
• Access to Bureau Veritas expertise spanning testing, inspection, certification, and sustainability consultancy

• Identify hidden energy savings, ESOS assessments typically reveal 10–30% reduction potential
• Gain a competitive advantage through efficient leadership and proactive regulatory alignment
• Maximise ROI on energy investments and build a foundation for net zero transition

• Independent, third-party verification ensures confidence in the accuracy of your ESOS submissions
• Proactive risk management to identify and address compliance gaps before they become penalties
• Expert support if your compliance is subject to a regulator audit

ESOS applies to all large UK organisations outside the public sector. Your organisation must comply if, on the qualification date, it meets any one of the following criteria: 250 or more employees; annual turnover exceeding £44 million; or an annual balance sheet total in excess of £38 million. The qualification criteria can be complex for group structures or organisations that have recently grown, so it is worth seeking expert guidance if you are unsure of your status.

ESOS is currently in Phase 4. If your organisational status on 31st December 2026 meets the ESOS qualification criteria, your deadline for compliance notification to the Scheme Administrator is 5th December 2027. 

Failure to comply with the ESOS regulations can result in significant financial penalties. Non-compliant organisations can also be named on publicly available government websites, creating potential reputational risk alongside the financial consequences. 

Yes. Organisations that hold a current ISO 50001 Energy Management System certification can use this as their compliance route under ESOS, rather than completing a separate energy audit. Bureau Veritas provides both ESOS compliance support and ISO 50001 certification services, meaning we can help you assess which route is most appropriate for your organisation and support you through whichever path you choose.