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ESOS Phase 3 Compliance
Book your energy savings opportunity scheme consultation today.
Book a call with our ESOS expert today and get started on your compliance journey. We'll walk you through the entire ESOS compliance process, from start to finish.

ESOS Phase 3 solutions made easy
ESOS is a mandatory energy assessment scheme for qualifying UK organisations. These assessments identify cost-effective energy-saving measures for buildings, industrial processes, and transport. Phase 3 of the scheme must be completed by June 5, 2024. To qualify for Phase 3, an organisation must be a "large undertaking" in the UK with 250+ employees or an annual turnover exceeding £44 million and an annual balance sheet total exceeding £38 million.
At Trident Utilities, we specialise in providing comprehensive solutions for ESOS Phase 3 compliance. Our in-house ESOS experts are here to guide you through every step of the process, ensuring that your organisation meets all the qualification criteria and fulfils its obligations under this mandatory scheme.
Book a call with our ESOS lead assessor today and get started on your compliance journey.
Value we deliver
In-house lead assessors
We were among the first UK-based consultants to offer ESOS-compliant Lead Assessors, helping organisations to meet requirements as early as possible.
Guaranteed success rates
The Environment Agency found a shocking 63% of Phase 2 evidence packs were only partially compliant, requiring corrective action. We are proud that 100% of our customers achieved compliance.
Beyond compliance
ESOS is more than a box-ticking exercise. With our award-winning level of customer service, we can help you implement sustainable solutions that reduce energy costs and optimise energy efficiency.
Start saving early
Taking action now means you can identify energy-saving opportunities early and save money. You can also avoid future difficulties by accumulating data to prepare for ESOS Phase 4.
Stay ahead with expert guidance
With the ever-changing landscape of ESOS regulations, it's crucial to stay informed and compliant. Our experienced team can help you navigate the complete ESOS Phase 3 timeline, understand the current qualification thresholds, and determine if your organisation qualifies. We'll also provide insights into the latest key changes for ESOS Phase 3 and beyond, ensuring you stay ahead of the curve. We'll help you every step of the way, from assessment to implementation.
Benefits of complying with ESOS
Complying with ESOS not only avoids penalties but also brings significant benefits to your organisation. Our experts will enlighten you on the advantages of complying with ESOS, such as identifying cost-saving opportunities, improving energy efficiency, and enhancing your corporate reputation as a responsible and sustainable business.
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FAQs
What will ESOS Phase 4 look like?
The government has stressed that Phase 4 will focus on covering Net Zero as well as energy efficiency, to support the Net Zero 2050 target. The recent changes in data requirements for ESOS Phase 3 to include Phase 1 & 2 improvements may mean Phase 4 could be based on the impact of the efficiency measures your business undertook during previous ESOS assesments.
What else will Phase 4 include?
Certain data will become mandatory to be made public. Examples include carbon reduction targets and Net Zero assessments.
What are the penalties for not complying?
A fixed penalty of £5,000 plus an additional £500 per day until notification is completed (up to a maximum of £90,000. Other penalties could be damage to reputation for not complying and the cost of lost opportunity from failing to identify energy-saving measures.
Has the ESOS Phase 3 deadline changed?
Yes, the deadline was extended to 5th June 2024 in June 2023 due to the increased data requirements announced a month earlier. This six-month extension is to give ESOS-qualifying organisations more time to fulfil their compliance. The Environment Agency made no changes to the qualification criteria.
Read moreIs it harder to submit ESOS Phase 3 data than it is for ESOS Phase 1 or 2?
Yes, you now need to submit significantly increased levels of data to completely fulfil your ESOS phase 3 compliance compared to both Phase 1 and Phase 2. This was due to the Environment Agency announcing an increase in the ESOS Phase 3 data requirements in May 2023 followed by a 6-month ESOS Phase 3 deadline extension to 5th June 2024.
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