Energy Savings Opportunity Scheme

ESOS is the UK government’s scheme for mandatory energy assessments which must be reviewed and signed off by lead assessors who are on one of the approved registers. We are now in the third compliance period, with a submission deadline of 5 December 2023.

I run a closed LinkedIn group for people actively engaged with ESOS; it provides a useful forum with high-quality discussion.

Caveat: proposed changes to the regulations

Background reading

Useful resources

These are documents which I have developed to support the ESOS assessment process during the first compliance period, and have since revised in the light of experience: