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ESOS Audit Service for Businesses and Corporations
The Energy Savings Opportunity Scheme (ESOS) is a mandatory energy assessment and energy-saving identification scheme for large UK organisations and corporate groups. It requires businesses to audit their energy use across buildings, industrial processes and transport every four years, which helps identify cost-effective energy efficiency opportunities. Our qualified ESOS Lead Assessor is here to help reduce your business energy and stay compliant with sustainability reporting requirements.
At Renew & Sustain, we bring clarity, compliance and value to your ESOS obligations. Contact us today to get started.
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Our Clients and Partners
A full review of your total energy consumption across buildings, transport and processes
Identification of your significant energy uses (SEUs)
On-site assessments conducted by a qualified lead assessor
A list of energy-saving recommendations that are cost-effective and technically feasible
A final report and evidence pack, submitted to the Environment Agency.
ESOS applies to UK organisations that meet any of the following criteria:
- Employ 250 or more people, or
- Have an annual turnover of over £44 million and an annual balance sheet total of over £38 million.
Undertakings that could qualify include:
- limited companies
- public companies
- trusts
- partnerships
- private equity companies or limited liability partnerships
- unincorporated associations
- care homes that do not qualify as public bodies.
Non-compliance can lead to:
- Civil penalties of up to £50,000, plus daily fines for continued non-compliance
- Public naming by the Environment Agency
- Reputational damage and potential legal enforcement
- It’s also a missed opportunity to reduce costs and improve sustainability performance.
Costs vary depending on the size and complexity of your organisation. On average, ESOS compliance can range from £3,000 to £20,000, depending on:
- The number of sites
- Availability of existing energy data
- Time required by a lead assessor
However, many businesses find that the cost is offset by the savings identified in the audit.
- ESOS is a periodic energy audit scheme (every four years) focused on identifying efficiency opportunities.
- SECR (Streamlined Energy and Carbon Reporting) is a large company’s annual carbon and energy reporting requirement.
While ESOS is about assessment and improvement, SECR is about transparency and public disclosure.
