ESOS COMPLIANCE
Energy Savings Opportunity Scheme (ESOS) Reporting
Not sure where to start with ESOS reporting? Consultus provides a fully managed ESOS compliance service, covering Phase compliance, Action Plans, Annual Progress Updates and final Notification of Compliance.
ESOS consultancy and compliance
The Energy Savings Opportunity Scheme (ESOS) is a mandatory UK energy assessment scheme designed to help qualifying organisations understand how energy is consumed across their operations and identify opportunities to reduce usage, costs and carbon emissions.
Our expert-led approach ensures organisations remain compliant while gaining valuable insight into energy efficiency opportunities and long-term sustainability improvements.
£23 million
Cost savings identified for our clients for ESOS phase 3
25,000 tonnes
Carbon savings identified for our clients for ESOS phase 3
100%
All notifications of compliance successfully submitted on time
Why use an ESOS consultancy for reporting?
With Consultus Sustainability you’ll gain access to expert guidance from experienced ESOS lead assessors who ensure you maintain compliance with mandatory regulations and avoid any penalties.
Our ESOS reporting helps you improve visibility of your energy usage across your buildings, transport and operational activities, identifying opportunities to reduce costs and improve operational efficiency. Beyond the regulatory aspect, it strengthens your ESG, sustainability and net zero credentials. Our team work as an extension of your team, giving back time for the day-to-day activities and improving internal knowledge.
Who qualifies for the Energy Savings Opportunity Scheme?
ESOS reporting applies to all large UK undertakings and their corporate groups that are registered or based in the UK or a UK establishment and have at least 250 employees (who work in the UK); or have an annual turnover of more than £44million and annual balance sheet of over £38million.
Corporate groups that contain at least one large undertaking and not-for-profit organisations that meet the large undertaking criteria may also qualify.
What's included in our ESOS consultancy service?
Our ESOS service supports organisations through every stage of compliance, from qualification and data collection through to audits, reporting and regulatory submission.
Our service includes:
Fully managed ESOS compliance support
Collection and validation of electricity, gas, fuel and transport data
Energy and transport audits completed by accredited Lead Assessors
Energy analysis across buildings, transport and operations
Identification of energy and cost-saving opportunities
ESOS Action Plan development and submission
Group-level reporting and board-level sign-off support
Final compliance notification submission support
Annual Progress Update reporting
Our ESOS Reporting packages
We offer a variety of packages for ESOS compliance so you can choose the solution that’s right for your business.
ESOS Assessment
A complete end-to-end ESOS compliance solution for qualifying organisations.
✓ Energy data collection and analysis
✓ Site and transport audits
✓ Representative sampling assessments
✓ Energy intensity calculations
✓ Group-level reporting
✓ Lead Assessor sign-off
✓ Notification of compliance
ESOS Action Plan
Support with creating compliant, practical and measurable Action Plans following ESOS Phase 3 or Phase 4 assessments.
✓ Review of previous ESOS outputs
✓ Identification of planned energy-saving measures
✓ Estimated energy savings calculations
✓ Organisational breakdown of projected savings
✓ Board-level sign-off support
✓ Submission guidance via MESOS portal
Annual Progress Updates
Ongoing support for tracking and reporting progress against ESOS Action Plans.
✓ Annual implementation reviews
✓ Tracking of completed measures
✓ Reporting of estimated savings achieved
✓ Inclusion of additional implemented measures
✓ Evidence gathering support
✓ Submission preparation for Progress Updates 1 & 2
ESOS Compliance + Net Zero Support
An enhanced solution combining compliance with long-term sustainability planning.
✓ Full ESOS compliance support
✓ Action Plans and Progress Updates
✓ Net Zero strategy integration
✓ Energy reduction planning
✓ Energy efficiency opportunity development
✓ Access to wider sustainability and implementation services
“We are delighted to partner with Consultus, who provided expert guidance on how we can best achieve our sustainability and net zero performance targets. Consultus made great efforts to understand the nature of our business and offered continued support as we navigated through their fantastic Net Zero Pathway technology. We at SIS Pitches hope to continue this productive working relationship into the future and would highly recommend Consultus to any organisation looking for advice and support in the energy consultancy market.”
– Joe Shaw
SIS Pitches
Our ESOS process
Whether you’re just looking to ensure your ESOS report achieves full compliance, or you want advice on taking the next step and implementing some of the opportunities identified, working with qualified ESOS consultants makes the whole process simpler.
01
Qualification & scope
We confirm qualifying entities, organisational structure and reporting boundaries.
02
Data collection & audits
Energy and transport data is collected and representative site audits are completed.
03
Analysis & reporting
Energy consumption is analysed and opportunities for improvement are identified.
04
Action plans & updates
Review action plan and progress updates to summarise measures implemented and energy savings achieved.
05
Compliance submission
Final reports are reviewed, signed off and submitted to the Environment Agency.
06
Next steps
Ready to implement some of the recommended actions? Or interested in net zero strategy? We can help!
Turn insight into action with our Net Zero Pathway Fast Track service
Once you’ve completed your ESOS assessments, you’ll have lots of valuable energy and carbon data ready to unlock cost and emissions savings. Our Net Zero Fast Track package is designed specifically for this, offering a quick and practical route from compliance to a credible Net Zero strategy. We review your existing ESOS outputs, build a baseline from that data, and model your emissions trajectory to identify the biggest reduction opportunities.
From there, we can create your full net zero strategy, giving you a phased roadmap for implementation with indicative ROI and prioritised opportunities. Find out more about our fast track service, and speed up your net zero journey.
The benefits of ESOS reporting with Consultus Sustainability
There are a number of benefits to completing the Energy Savings Opportunity Scheme with us. Our expert team will help you maximise the opportunities ESOS presents, whilst ensuring you stay compliant and avoid fines.
Full ESOS compliance and reduced regulatory risk
Achieve full compliance with ESOS legislation whilst minimising exposure to fines and non-compliance, supported by trained ESOS assessors.
Cut energy consumption and costs
Identify cost-effective efficiency measures and reduce energy use and carbon emissions, backed by expert analysis of portfolio-wide energy performance.
Support long-term Net Zero and business goals
Create a structured plan for ongoing energy improvement that feeds into wider ESG, SECR and Net Zero objectives.
“Its easy to keep putting ESOS off until the deadline is imminent, but by doing this, you’re giving yourself a lot more stress and risking hefty fines. We always recommend getting in early, so you have peace of mind knowing you’re covered, and have plenty of time to get your site audit booked in for a day that suits you. Luckily – if you have left things until the last minute – our team can turn around ESOS reporting quickly, without compromising on quality, so you don’t have to worry.”
Harry Goddard
Senior ESG Data and Reporting Analyst
Related services
Explore our other products and services that may compliment your ESOS reporting
ESOS FAQs
Got a question about our ESOS consultancy and reporting services? Check out our FAQs or reach out to our team for more help.
What is ESOS?
ESOS (Energy Savings Opportunity Scheme) is a mandatory UK energy assessment and reporting scheme for qualifying large organisations. It requires businesses to assess total energy consumption, complete energy audits and identify energy-saving opportunities every four years.
Are ESOS reports public?
The compliance notification itself is submitted to the Environment Agency, but detailed ESOS reports are not generally published publicly in the same way as SECR disclosures. However, organisations may choose to communicate achievements and progress externally.
When is the ESOS phase 4 deadline?
The qualification date for ESOS Phase 4 is 31 December 2026, with the Phase 4 compliance notification deadline set for 5 December 2027. Progress Update 2 must be submitted by 5 December 2026.
News and blog
Take a look at our latest news articles, blogs and guides, covering a range of sustainability topics, energy saving tips, and cost reduction ideas.
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