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Energy Savings Opportunity Scheme: Ensure Compliance for ESOS Phase 3

Discover the requirements and benefits of the Energy Savings Opportunity Scheme


Expert guidance for UK organizations

ESOS is a mandatory scheme for organizations in the UK that meet the qualification criteria. Take advantage of our expert guidance and ensure your organization meets all the requirements. Download our guide now and stay ahead of the compliance deadline. Trident Utilities is here to support you every step of the way.

Value we deliver

In-house expertise

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. 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. With energy prices at record highs this makes good commercial sense as well as being good for our environment!


Everything You Need to Know in One Place

Download our comprehensive guide to gain access to all the information you need about ESOS. From understanding the scheme's eligibility criteria to conducting energy audits and implementing energy-efficient measures, our guide covers it all. With Trident Utilities, you have a trusted partner in optimizing your energy usage and achieving long-term sustainability. Start your journey towards energy efficiency today.


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.

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. Other penalties could be damage to reputation for not complying and 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

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Is 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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