What should I keep in my ESOS evidence pack?
If your organisation is eligible for ESOS, you must keep an evidence pack that includes where relevant to your organisation:
- contact details of the participating undertakings and the responsible undertaking
- details of any board level directors or equivalents who’ve reviewed the ESOS assessment findings
- written confirmation from the director(s) to evidence that they reviewed the ESOS assessment
- contact details of your lead assessor and the name of the approved register which they are a member of
- written confirmation from the lead assessor to evidence that they reviewed the ESOS assessment
- the calculation for your total energy consumption
- a list of your identified areas of significant energy consumption
- details of the energy audits undertaken including the audit methodology used in your ESOS energy audits
- details of the energy saving opportunities identified
- details of the routes to compliance used to cover each area of significant energy consumption and where applicable evidence (e.g. certificates) of the alternative routes to compliance
- written agreements to support any disaggregation or aggregation of group members • written agreements to support any alternative responsible undertaking chosen (other than the default highest UK parent)
- reasons for using less than 12 months of data for the measurement of total energy consumption, if you couldn’t do this
- reasons for using less than 12 months of data to support an ESOS energy audit, if you couldn’t do this
- reasons for being unable to use verifiable data on energy use or energy expenditure to support your calculation of total energy use
- the methodology you used for any estimates you’ve made for energy use or energy expenditure
- justification, where applicable, where your lead assessor has not used an energy consumption profile in your audit of an area of significant energy use
You must keep the evidence pack for the compliance period to which it relates and the two subsequent compliance periods.
