ESOS Assessment

Avoid the risk of delays and penalty charges and capitalise on your investment in ESOS,
Exergy’s engineers are CIBSE qualified ESOS Lead Assessors
ESOS is due in...
What is ESOS?

Energy Savings Oportunity Scheme (ESOS) involves an energy assessment, identifying opportunities for energy savings – it’s mandatory for large organisations in the UK.

Do I need an ESOS assessment?

You qualify if : 

  • You employ 250 people or more
  • Has an annual turnover in excess of £38,937,777
  • Has an annual balance sheet total in excess of £33,486,489

Phase 1 was completed in December 2015. The next deadline for ESOS Phase 2 is December 2019.

What do I need to do to comply with ESOS?

Qualifying organisations need to measure their annual total energy consumption every 4 years (including buildings, transport and industrial activities) and carry out energy audits to identify energy efficiency opportunities.

If you qualify, you should engage ESOS assessors and begin the assessment process soon to avoid the risk of delays and penalty charges up to £90,000 as being publicly named as a non-compliant company.

How can Exergy help?

Exergy’s engineers are CIBSE qualified ESOS Lead Assessors. We go further, providing tailored engineering services to help our clients implement the upgrades, saving money and resources.

  • Data collection and performance monitoring
  • Profiling, validation and assessment of energy consumption data
  • On-site energy audits
  • Identification of energy savings opportunities and life cycle cost analysis
  • Delivery of the ESOS compliance report
  • Roadmap for the effective implementation of energy savings opportunities
  • Assistance with and/or full project management of implementation activities

For more information, simply call us on 024 7615 8171 or contact our ESOS Assessors.
Full guidance on ESOS can be found on the GOV.UK website.

Sector of application


Real Estate
Real Estate



Why should I choose Exergy?

Cost Savings

Everyone wants cost savings. ESOS can be a springboard to improve your facilities, provide better conditions for your employees and contribute to
the development of sustainable communities.

Strategic Advice

Working with Exergy, as well as complying with ESOS requirements, you will also have access to practical and strategic advice, aligned with your corporate strategy.

Beyond Compliance

We help our clients to aim higher than compliance requirements. 
Contact us today to get started!

Our ESOS assessors are accredited by CIBSE

Contact us

Get started today!
Andy Thomson

Senior Energy Efficiency Engineer

Related Projects