Energy Savings Opportunity Scheme

ESOS Consultancy Services

Want to save energy and meet compliance obligations?
Our experienced ESOS consultants can help.

What is The Energy Savings Opportunity Scheme?

The Energy Saving Opportunity Scheme (ESOS) is a mandatory energy assessment initiative for large UK undertakings, defined as those employing 250 or more people or having an annual turnover exceeding £44 million and a balance sheet total over £38 million. Administered by the Environment Agency (EA), ESOS aims to enhance energy efficiency and reduce greenhouse gas emissions. Qualifying organisations must conduct ESOS assessments every four years, auditing energy use in buildings, industrial processes, and transport to identify cost-effective energy-saving measures.

From Phase 3 onwards, starting in 2022, additional compliance requirements include submitting a four-year action plan (2023-2027) and annual progress updates to the EA. These documents, submitted via the ESOS portal, will be published by the EA. ESOS is distinct from the streamlined energy and carbon reporting (SECR) regulation, though many organisations qualify for both. An ISO 50001 certified energy management system can substitute for an ESOS audit, provided it covers all required energy supplies and operations and remains valid at the compliance date.

Contact us to find out more about ESOS or ISO 50001 Certification

Environment Agency
Energy savings opportunity scheme

How it can make a difference to your organisation

Improved energy management

Improved energy management

Our specialist ESOS consultants can help your organisation identify energy-saving opportunities to reduce energy consumption and costs, improving environmental performance

Reassure customers & stakeholders

Customer confidence

Enhance your reputation by demonstrating your responsibility for combatting climate change by saving energy and reducing emissions

Carbon footprint

Carbon footprint

Our ESOS consultancy and advice can help reduce your carbon emissions and support your carbon reduction plans on a pathway footprint through energy efficiency to Net Zero

Reduce operating costs

Reduce costs

ESOS Assessments will identify cost-effective energy-saving measures to help to improve your organisation’s bottom line

Supports Compliance

Compliance obligations

ESOS assessments, approved by an ESOS Lead assessor, will ensure you are compliant with current ESOS regulations and can support other sustainability obligations (e.g. SECR)

Complete framework

Complete framework

Provides a framework for organisations to achieve their energy goals, which in turn improves efficiency, reduces costs and helps mitigate climate change.

Our ESOS Compliance Lifecycle

GapAnalysis

Scoping

We will help you understand your obligations and the extent of information that needs to be reported

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Implementation

Energy Audits & Data Gathering

We will conduct site energy audits and advise you on what energy data needs to be gathered before completing our Energy review and analysis

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Certification

ESOS Report & Energy Saving Opportunities

We will provide full site energy survey reports detailing all energy efficiency improvements, energy saving opportunities and report on potential savings in terms of energy and cost with suggested priorities

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Verified

Environment Agency submission

We will support submission of a notification to the Environment Agency and our registered ESOS Lead Assessor will sign off the overall ESOS assessment. 

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ISO 50001 Documentation

Energy Action Plan & Annual Progress Updates

We can help you identify action plan commitments to reduce energy consumption and produce the required 4-year action plan for ESOS phase 3, along with supporting the submission. Following this, we will work with you to update annually on your progress with estimated energy and cost savings.  

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Why choose Teamwork IMS?

Experienced Professionals

Since 2007, Teamwork has been helping a huge range of organisations, from SMEs to large international corporates, in solving compliance challenges, driving forward ISO certification, sustainability and other improvement initiatives. 

Our experience and success has been firmly based on two key principles: the ability of Teamwork consultants to identify, define and align with the real business drivers of our clients and our innate ability to become one with our client’s own teams. 

Multi-disciplinary team

A team you can trust 

Our multi-disciplinary team of consultants are not only experts across a range of management and technical standards but are passionate about delivering exceptional service and adding value. There is no one better to help you navigate compliance and/or drive forward your improvement initiatives. 

The team includes CISSP, PCI Security Standards Council QSA, MBCI, GDPR, ISEP, CQI, NEBOSH and CMIOSH qualified consultants, who have developed and successfully led UKAS accredited ISO and other standards-based improvement programmes for private and public-sector organisations across an international client base.   

Part of your business

Working alongside your business

Adding real value to your business means getting to know your needs and driversWe do not believe in ‘one size fits all’. That is why our services are flexible and tailored to our clients.  

Global credentials

Our Sustainability Services 

Our sustainability services also include ISO 50001, ISO 14001, Energy Audits, Carbon Footprinting, Carbon Reduction Planning and support with sustainability assessments (e.g. EcoVadis).

Our services can support you in:

  • Giving confidence to your clients they are engaging with a business with sustainable processes
  • Assisting in the submission of response to Requests for Information (RFIs) during competitive tender processes 
  • Demonstrating fulfilment of legal, regulatory, and third-party sustainability requirements
  • Improving your environmental impact and identifying potential cost savings
  • Measuring your total greenhouse gas emissions to aid strategies for reducing emissions
  • Developing management systems that will satisfy your stakeholder requirements
  • Enabling you to manage your sustainability requirements as and when changes occur within your organisation
  • Providing sustainability policies and procedures, which will support your sustainability strategy
  • Making visible to all stakeholders good sustainability related governance controls and best practice
  • Providing a solid foundation to embrace other industry standards that may become important 

See all standards…

Related Standards and Services

ISO 50001

ISO 50001

Improve energy efficiency and reduce greenhouse gas emissions.

ISO 14001 Consultancy

ISO 14001

Reduce your environmental impact and demonstrate your organisation's commitment to the environment

SECR

SECR

Streamline your energy & carbon reporting.

ESOS

Carbon Footprinting & Reporting

Carbon Footprinting, Reporting and Carbon Reduction Planning

Frequently asked questions

Does ESOS apply to my organisation?

ESOS applies if your organisation, or any UK undertakings in your organisations group, qualifies as a large undertaking on the Phase 3 qualification date, 31 December 2022 or will qualify on the Phase 4 qualification date, 31 December 2026. The criteria below apply to the individual undertakings in your group, so if you report using consolidated  accounts you will need to ensure you consider whether any of the individual undertakings is a large undertaking in its own right. You must also take part in ESOS if your undertaking is part of a worldwide corporate group which includes another UK undertaking that meets either of the below conditions. 

A large undertaking is any UK undertaking that meets either one or both conditions below: 

  • it employs 250 or more people 
  • it has an annual turnover in excess of £44 million and an annual balance sheet total in excess of £38 million 

The current compliance period is 6 December 2023 to 5 December 2027, and if your organisation qualifies, you must participate in ESOS and notify compliance to the Environment Agency by the last date of the compliance period, 5 December 2027. If your status changes after the qualification date for a compliance period, this will not affect your eligibility for ESOS. You will still need to comply by the compliance date for the period if you qualify for the scheme on the qualification date of Phase 4 qualification date, 31 December 2026. 

We can help you review your compliance obligations and corporate structures to ensure compliance with the applicable schemes. 

Do we need to comply with ESOS if we are ISO 50001 certified?

If you have a certified ISO 50001 energy management system that’s certified by an accredited certification body and covers all your energy supplies as included under ESOS (for the whole corporate group in the UK), this counts as your ESOS audit, you only need to carry out limited additional actions and you do not need to use a lead assessor to review your compliance. To be compliant, the certification must remain valid at the compliance date. 

If you are using ISO 50001 as one of your routes to compliance, then the energy management system must be certified by one of the following: 

  • a United Kingdom Accreditation Service (UKAS) accredited certification body 
  • a body accredited by another EU member state’s national accreditation body 
  • a body accredited by a body which is a member of the International Accreditation Forum 

You are still required to: 

  • calculate your total energy consumption and energy intensity ratios  
  • calculate your energy savings since the previous ESOS compliance date, complete an ESOS report and share information about your ESOS compliance with other group undertakings  
  • get a board level director to confirm that they have reviewed findings of your ISO 50001 certification, the organisation is compliant and the information which is going to be entered in the compliance notification is correct 
  • submit a compliance notification to the Environment Agency which specifies that this is how you are compliant with ESOS 
  • following the compliance notification, complete an action plan and subsequent progress updates  
  • keep some evidence in an evidence pack 

A number of these actions would be included in an ISO 50001 management system and we can work with you to ensure your management system aligns to these reporting requirements. 

You can also consider implementing ISO 50001 as a route to compliance for the future and to demonstrate your ongoing energy management beyond regulatory compliance with ongoing review of improvements and cost savings and supporting the annual action plan and progress updates. Teamwork can support you with this. 

What is involved in the process?

To achieve ESOS (Energy Savings Opportunity Scheme) compliance you must carry out an ESOS Assessment. This involves: 

  • measuring your total energy consumption 
  • identifying areas of significant energy consumption 
  • calculating energy intensity ratios  
  • ensuring areas of significant energy consumption are covered by a route to compliance 
  • appointing a lead assessor 
  • getting one or more board level directors to review the findings of the assessment 
  • making a notification of ESOS compliance online 
  • completing ESOS action plans and ESOS annual progress updates 
Do we need external verification or assurance?

For an ESOS Assessment you need to appoint a lead assessor to carry out and oversee or review your energy audits and overall ESOS assessment. Lead assessors must be members of an approved professional body register. The report must be signed off by a Director. 

If you qualify for ESOS and your organisation is fully covered by  ISO 50001,  you only need to carry out limited additional actions and you do not need to carry out an ESOS assessment. You do need to notify the Environment Agency that you’re compliant with ESOS and provide a submission with limited information. 

How should companies report?

All companies qualifying must use the online notification system to notify the Environment Agency that you are ESOS compliant and for the action plan and progress updates. The Environment Agency collates the notifications from all participants on behalf of all the other regulators and from Phase 3 onwards will publish the information submitted through the compliance notification system within 6 months of the compliance date for the period to which the information relates, apart from personal or commercially sensitive details and feedback. 

In your online notification for compliance, you will be asked for details about: 

  • the participant, contact details for the responsible undertaking, individuals who can be contacted about your ESOS compliance and directors who reviewed the ESOS assessment findings. 
  • any aggregation or disaggregation of group members 
  • what proportion of your total energy consumption is covered by each compliance route 
  • energy consumption and intensity ratios 
  • energy saving opportunities  
  • energy savings achieved 
  • lead assessor details
What are the Environment Agency (EA) fines for non-compliance?

The Environment Agency (EA) has strengthened its penalties for non-compliance with the Energy Savings Opportunity Scheme (ESOS) as the scheme enters its third phase. Here are some key penalties for non-compliance:

Failure to Notify: An initial penalty of up to £5,000, plus a daily penalty of up to £500 for each working day the organisation remains in breach.
Failure to Maintain Records: An initial penalty of up to £5,000, plus costs incurred by the compliance body to confirm compliance.
Failure to Undertake an Energy Audit: An initial penalty of up to £50,000, plus a daily penalty of up to £500 for each working day the organisation remains in breach.
Failure to Comply with an Enforcement/Penalty Notice: An initial penalty of up to £5,000, plus a daily penalty of up to £500.
False or Misleading Statement: A penalty of up to £50,000.

We practice what we preach

We of course need to practice what we preach and are ourselves certified to ISO 9001 (quality), ISO 27001 (information security), Cyber Essentials, ISO 14001 (environment), have achieved EcoVadis Silver status and monitor and measure our own carbon footprint.

View our certifications, partnerships and memberships

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