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Wednesday, 23rd September 2020


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.

ESOS Phase 3

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.

FREE SECR Pocket Guide
FREE Net Zero Pocket Guide