The public sector must improve its energy efficiency by 50% by 2030, compared to an energy efficiency baseline. This 50% target applies to all public bodies, except those that are deemed to be new entrants after 2009.
This energy efficiency target is distinct from the 2030 greenhouse gas reduction targets.
Most public bodies can select a preferred energy efficiency baseline period from a choice of three options:
You can select your baseline period using the your organisation screen.
Your organisation's progress towards the energy efficiency target is calculated from whichever baseline period is selected.
The energy efficiency baseline period for an organisation that was established after 2009 is the organisation’s first full calendar year in existence.
You must submit the following data to establish a valid energy efficiency baseline for your organisation:
If your energy efficiency baseline period is an average of more than one year (e.g. 2006-2008), all baseline values are calculated as the average of the annual values over the relevant years.
An organisation-level energy performance indicator (EnPI) is a way of measuring your organisation’s energy performance. It enables you to determine how efficiently your organisation is using energy as it accounts for changes in the activity level related to the energy use - or activity metric - of your organisation.
If a coffee stall reduces its electricity consumption by 5% from the previous month, it may appear to be managing its energy consumption well. But if the 5% reduction coincides with a 20% drop in the number of cups of coffee sold, then the energy used per cup of coffee has actually increased. Therefore, the energy performance – or energy efficiency – has worsened. This ratio of energy used per cup of coffee sold is the EnPI for the coffee stall.
Your EnPI is calculated for each year by dividing your organisation’s total energy consumption, expressed as the primary energy requirement, by your organisation-level activity metric. A decreasing EnPI is an indicator of improving energy efficiency. And vice versa.
Primary energy accounts for energy that is consumed and/or lost in transformation, transmission and distribution processes. Your organisation's primary energy requirement for each year is calculated by the M&R system via four steps:
These calculations are described in more detail under ‘energy conversions & calculations’ in energy & CO2.
An activity metric is a measure of the activity that your organisation undertakes. It should be directly relevant to what drives energy consumption in the organisation.
A normalised EnPI is a way of expressing an EnPI over a period of time.
A normalised EnPI is calculated for each year by dividing your EnPI for the year by your baseline EnPI, and multiplying the answer by 100. Your normalised EnPI at your energy efficiency baseline is 100 and values for subsequent years are expressed relative to 100.
If your organisation uses multiple activity metric periods, separate normalised EnPIs are also calculated for each activity metric period. These are labelled with reference to the activity metric period, e.g. '2009-2013 normalised EnPI'.
Your organisation's progress towards the energy efficiency target is tracked using the organisation-level EnPI.
For example, if your energy efficiency target is 50%, your organisation must reduce its EnPI by 50% between its energy efficiency baseline and 2030, i.e. your organisation must reduce its normalised EnPI from 100 to 50.
The system calculates an indicative trajectory from your energy efficiency baseline to the 2030 energy efficiency target. The indicative trajectory is based on a constant improvement in energy performance between the energy efficiency baseline and the 2030 target.
If your normalised EnPI in a year is below the indicative trajectory, your organisation is broadly on track to achieving the target. If your normalised EnPI in a year is above the indicative trajectory, your organisation is not yet on a trajectory that is consistent with meeting the target.
The change in your normalised EnPI since your energy efficiency baseline is the indicator used to track your progress towards the energy efficiency target. Negative values indicate an improvement in efficiency since baseline, and vice versa.
Your ‘gap to 2030 target’ indicates the percentage point gap between your normalised EnPI in a year and your target normalised EnPI. Positive values indicate a gap to the 2030 energy efficiency target.
For example, if your target EnPI is 50 and your EnPI in the current year is 68, your gap to target is 18 (68 - 50 = 18) , i.e. your organisation must reduce its normalised EnPI by 18 percentage points between now and 2030.
If your organisation's EnPI is already below the target EnPI, your gap to target is shown as zero.
The system also calculates the ‘improvement required to reach 2030 target’. This expresses the gap to target as a percentage of your current EnPI. Positive values indicate additional reduction in EnPI required to reach the 2030 energy efficiency target.
For example, if your target EnPI is 50 and your EnPI in the current year is 68, your gap to target is 18 and the improvement required to reach the 2030 target is 26.5% (18 ÷ 68 = 26.5%), i.e. your organisation must reduce its EnPI by 26.5% from its current value between now and 2030.
If your organisation's EnPI is already below the target EnPI, your ‘improvement required to reach 2030 target’ is shown as zero.