The official ESOS guidance lists seven steps in the process of carrying out an energy audit: Measure your total energy consumption over a 12-month period; Identify areas of significant energy consumption; Consider available routes to compliance; Ensure areas of significant energy consumption are covered by a route to compliance; Appoint a lead assessor; (There is an exception for the minority of organisations that have zero energy responsibility under the ESOS rules.) Get one or more board level directors to review the findings of the assessment; Submit your notification of ESOS compliance through the Environment Agency website.