For Phases 1 and 2, there was no template and no requirement for ESOS data to be presented in any particular format. At the time of updating these FAQs (December 2022), the government is working on a template to standardise the way participants present their compliance information. Keep an eye on the Energy Advice Hub for updates. Whatever the eventual template looks like, it will definitely require participants to keep clear records of how they have met the ESOS requirements. The guidance refers to this as an “evidence pack”. The more clarity, detail and structure your records have, the easier it will be for your organisation to comply with whatever is coming in future. For now, the only element of the process that follows a specified format is notifying the Environment Agency of compliance, which is done through a webform. (The webform for Phase 3 is not yet live.)