Measuring your total energy consumption
Total energy consumption must be measured in either energy units (kWh) or in total expenditure.
Total energy includes all energy used buildings, industrial process and transportation.
In determining total energy consumption the following should be taken into account:

• ESOS definition of Energy consumption
• Supply rules, including the rules on unconsumed supply; and
• The exclusion of energy use outside the UK (with the exception of international travel, where special rules apply).

ESOS Definition of Energy consumption
Includes the consumption of all forms of energy products, combustible fuels, heat (excluding participants own waste heat), renewable energy, electricity, or other forms of energy.

Determining what energy consumption is in scope
It is usually the heat energy which is paid for i.e. energy supplied and consumed as part of an agreement from a supplier.

Unconsumed Energy
May be excluded provided that it is measured or can be calculated or reasonably estimated.
Energy consumption outside of the UK is excluded – with the exception of international travel.

Identify Areas of Significant Energy Consumption consumed Energy
There is a requirement to audit assets and activity which consume 90% of energy.
10% can be excluded as deminis to ensure that Audits are proportional, cost effective and to focus on the significant areas of consumption.