ESOS (Energy Savings Opportunity Scheme) is a mandatory energy assessment scheme for large organisations in the UK that meet the qualification criteria.
Organisations must carry out audits of their energy use to identify cost-effective energy saving measures.
The deadline for ESOS phase 2 passed on 5 December 2019.
ESOS is now in phase 3 – and the deadline for compliance is 5 December 2023. These pages help you stay briefed on ESOS phase 3 with the latest information, news, analysis and answers to your ESOS frequently asked questions.