ESOS Compliance
ESOS will run in four year phases. For each phase, there will be a qualification date, when participants should determine if they are in scope of the scheme, and a compliance date, by which participants must have completed their ESOS Assessment. For the purposes of determining whether they are in scope of ESOS, participants need to consider their size (and group structure) at the qualification date. The first qualification date will be 31 December 2014. Undertakings that qualify for ESOS on this date will need to participate in ESOS. The first compliance date started on the 5th December 2015; all participants must have completed the required energy audits and notified the Environment Agency, as scheme administrator, that they have done so by this date. ESOS will continue in four year phases, with subsequent qualification dates and compliance dates on each four-year anniversary of these initial dates.