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Parliamentary Estates Directorate
Palace of Westminster
LONDON
SW1A 0AA

Operational rating

E

30 April 2022

0954-2299-1109-8468-3040

Energy performance operational rating

The building’s energy performance operational rating is based on its carbon dioxide (CO2) emissions for the last year.

It is given a score and an operational rating on a scale from A (lowest emissions) to G (highest emissions).

The typical score for a public building is 100. This typical score gives an operational rating of D.

Operational energy efficiency chart This building’s operational energy rating is E with a score of 124. Buildings get a rating from A to G and a score. Rating E is for a score of 101 to 125. The ratings and scores are as follows from best to worst. Rating A is for a score of zero to 25. Rating B is for a score of 26 to 50. Rating C is for a score of 51 to 75. Rating D is for a score of 76 to 100. Rating E is for a score of 101 to 125. Rating F is for a score of 126 to 150. Rating G is for a score over 150.

You can read guidance on DECs and advisory reports for public buildings.

This building’s energy use

Main heating fuel
Natural Gas
Building environment
Heating and Natural Ventilation
Total useful floor area
111,208.9 square metres
Asset rating
Not applicable
Energy use Electricity Other fuels
Annual energy use (kWh/m2/year) 138.61 139.23
Typical energy use (kWh/m2/year) 107.83 122.78
Energy from renewables 0.1% 0%

Previous operational ratings

This tells you how efficiently energy has been used in this building over the last three accounting periods.

May 2021
124 E
May 2020
137 F
May 2019
136 F

Total carbon dioxide (CO2) emissions

This tells you how much carbon dioxide the building emits. It shows tonnes per year of CO2.

Date Electricity Heating Renewables
May 2021 8,478 3,004 5
May 2020 9,118 3,496 5
May 2019 8,799 3,591 5

Administrative information

Assessor’s name
Mr Giles Davies
Assessor ID
EES/019930
Employer/Trading name
TEAM (Energy Auditing Agency Ltd)
Employer/Trading address
3 Radian Court, Knowlhill, Milton Keynes, MK5 8PJ
Assessor’s declaration
Contractor to the occupier for EPBD services only.
Assessment software
CLG, ORCalc, v4.0.4
Property reference
RRN-0954-2299-1109-8468-3040
Accreditation scheme
Elmhurst Energy Systems Ltd
Accreditation scheme telephone
01455 883 250
Accreditation scheme email
enquiries@elmhurstenergy.co.uk
Issue date
14 May 2021
Nominated date
1 May 2021
Valid until
30 April 2022
Summary XML
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Other certificates for this property

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