Enquire about an ESOS energy audit or action plan today
We're helping organisations comply with phase 4 of the Energy Savings Opportunity Scheme
ESOS assessment
End-to-end energy audit service to ensure your business complies with phase 4 of ESOS.
Do you want to find out more about developing your energy saving action plan or auditing your sites for ESOS? Or are you ready to book a lead assessor? Simply let us know your details and one of our experts will be in touch.
Guarantee compliance
Support your net-zero targets
Future-proof your business
Comply with BS EN 16247–2:2022 standard for energy audits
The Government’s Energy Savings Opportunity Scheme (ESOS) is a mandatory energy assessment scheme (for qualifying companies), which aims to make UK businesses more energy efficient.
If your organisation meets the qualifying criteria, then you need to report on your energy use every four years, look for cost-saving ways to reduce consumption, and develop an energy saving action plan.
ESOS phase 4 has begun and all large companies have until December 2027 to conduct a representative sample of energy audits across buildings, transport, and processes. Any energy audit conducted between January 2024 and December 2027 can count towards your compliance. An ESOS Phase 4 energy audit is mandatory for UK companies that meet the following criteria:
Book a date
Once we have established a tailored training programme for you and your business, we book in a date to for the training session at one of your sites.
Get in touch
Submit your details using the form above and a member of our expert team will be in touch to discuss your spill training needs.
Get your certificate
Upon successfully passing the multiple choice exam and attitudinal goals, training delegates will be awarded a certificate of attendance in Spill Awareness valid for 3 years
What's next?
© 2025 Adler & Allan Ltd
What parts of my business should be covered in the ESOS energy audit?
From there, you must audit the areas that account for 95% of your overall energy. You’re allowed to class 5% of your energy consumption as ‘de minimis’ and exclude it from audits.
Your assessment should cover a representative sample of your operations and sites, and results should be presented in a common unit, such as pounds sterling or kilowatt-hours.
Are there penalties for ESOS non-compliance?
Failure to notify the Environment Agency can lead to an initial penalty of up to £5,000 and a daily fine of up to £500 until you comply – even if you’ve carried out your audits.
Making a false or misleading statement could lead to fees of up to £50,000.
When should my company begin its ESOS audit?
In previous phases, companies who put off their audit faced bottlenecks, delays, and a shortage of lead assessors, risking harsh non-compliance penalties.
Early ESOS reporting lets you lock in compliance, spread the cost of energy-saving initiatives, and realise their benefits sooner, rather than later.
Frequently asked questions
The course was extremely beneficial to myself and the wider team and I would recommend Adler & Allan for any of our training
Stewart King, Site manager
Adler & Allan
0800 592 827
What is an energy saving action plan?
The purpose of an energy saving action plan is to make organisations consider the actions they may wish to take before the next ESOS phase, as well as planning future action to implement energy savings which they will publicly commit to.
This action plan must outline what a company intends to do to reduce their energy consumption over the next three years, including the total estimated energy savings and the timeline for when these initiatives will be completed.
The deadline for submitting ESOS action plans is 5 March 2025.
What's involved in an ESOS audit?
An ESOS audit measures your total energy usage across your buildings, processes and transport. It also pinpoints your highest consumption areas, helping you locate opportunities to save cost and energy.
The assessment will include:
- Calculating your company’s overall energy consumption •Identifying and auditing areas of significant energy consumption
- Building energy audits
- Transport and fleet audits
- Process energy audits for manufacturing or construction
- Appointing an ESOS lead assessor to review your report
- Notifying the Environment Agency
- Keeping accurate compliance records
- Complete an overarching ESOS Compliance Report
- Conduct annual ESOS Action Plans and report progress from December 2025 onwards.
Building and process energy audits
By understanding how energy is consumed within your business, it is possible to identify substantial financial and environmental savings. Our experienced energy auditors can develop a detailed energy audit programme, bespoke to your organisation. With our expertise in sustainability, fuel, and energy infrastructure, not only can we identify actions to reduce your consumption but support you to implement change in the optimal manner.
Our experts can work with your organisation to identify:
- When and where energy is being consumed
- Unnecessary out-of-hours energy waste
- Employee engagement and behavioural change
- Energy intensity ratios and reduction targets
- Zero and low-cost opportunities
- Capital expenditure projects with simply payback and/or full lifecycle cost analysis
- Suitable low carbon or renewable energy sources
- Grant funding, incentives, subsidies and other financing mechanisms
Transport audits
Transport can often represent a significant operational cost to a business and have an extensive environmental impact.
Through improved data capture, improved operating practices and investment in new and emerging technologies, a business can significantly reduce its energy consumption and carbon emissions.
And by extension, a company can also contribute to enhancing local air quality and improving health and wellbeing.
A transport audit can cover company owned vehicle fleet, employee vehicles and public transport use.
The process analyses actual energy and fuel use against expected levels to identify any inefficiencies. Costed recommendations, including simple payback calculations and full lifecycle analysis set out the expected return on investment.
A transport audit can reduce the need to travel, where possible while reducing the health and safety risks associated with travelling.
An energy and transport audit can have significant organisational benefits including:
- Identifying energy, fuel, and efficiency savings
- Reducing operating costs
- Future proofing against upcoming changes in legislation
- Transitioning to a Net-Zero society
- Playing your part in tackling climate change
- Regulatory compliance with ESOS
- Gaining competitive advantage
