Further Compliance Reporting

Energy Savings Opportunity Scheme (ESOS)

The Energy Savings Opportunity Scheme (ESOS) is a mandatory programme of energy audits for large enterprises with more than 250 employees or a turnover in excess of £44.1m (€50m). Non-compliant organisations face fines of up to £90k. ACI Reports can help you through your ESOS compliance process and help you to be smarter with your energy.

Energy Savings Opportunity Scheme (ESOS)

Organisations that qualify for ESOS must carry out an ESOS assessment every four years in order to remain compliant. ACI Reports undertakes ESOS compliance reports nationwide and, as an independent organisation, we are not linked to any energy suppliers, which means we offer completely unbiased advice. Plus, with accredited energy assessors located strategically across the UK as well as a large office team, we can offer a fast turnaround.

Following on from an initial consultation, we take a “least cost” approach to ESOS. Much of the requirement for your ESOS report can be met through your own accounts team but we provide a roadmap, oversee the strategy and prepare the final report for sign off by our ESOS qualified personnel. The final reports are tailored to the unique needs of every client and our recommendations will help you to achieve tangible savings.

Why choose ACI Reports?

  • Large team with energy assessors based throughout the UK
  • Capacity to undertake 150 reports every week
  • Health and safety accredited
  • Security vetted and CRB checked
  • Proven track record delivering against KPIs
  • Insurance to the value of £10m
  • Able to deal with large complex projects
  • Independent and impartial advice

If you are looking for ESOS guidance or you wish to discuss your requirements in more detail, please contact our experienced team.

Key Services


Air conditioning systems are affected by the UK Energy Performance of Buildings Regulations (EPB). As the UK’s market-leading accredited provider of TM44 inspections, we can help you to tick off your legal obligations quickly, efficiently and without a fuss.


It is a legal requirement to have a valid Energy Performance Certificate (EPC) when a building is sold, let, constructed or modified – and it should be renewed every 10 years, subject to particular criteria. Our accredited and highly experienced energy assessors can help you to demonstrate compliance and mitigate risks.


Display Energy Certificates or DECs indicate the energy performance of public buildings using a scale that runs from A (most efficient) to G (least efficient). Our accredited assessors can provide accurate, consistent DEC reporting at any UK location to help you demonstrate compliance, including in Scotland where the requirements for public buildings are different.

Our Accreditations

We hold ourselves accountable to the very highest industry standards; earning numerous accreditations from the most prestigious trade bodies.

Get In Touch

If you are looking for ESOS guidance or you wish to discuss your requirements in more detail, please contact our experienced team.

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