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 an original submission deadline of 5 December 2023 postponed to 5 June 2024 to give the Government time to change the Regulations and make them more onerous.

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

Background reading

Responsible undertaking contacts: ESOS lead assessors can notify the EA in bulk of the contacts in each Responsible Undertaking using this spreadsheet .