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Prime Minister & First Lord of the Treasury
10 - 12 Downing Street
LONDON
SW1A 2AA
0762-2002-0380-0290-2925
15 September 2015
Operational rating and DEC
This building’s operational rating is D.
For more information on the building’s energy performance, see the DEC for this building.
Recommendations
| Recommendation | Potential impact on carbon emissions |
|---|---|
| Consider how building fabric airtightness could be improved, for example sealing, draught stripping and closing off unused ventilation openings, chimneys etc. | Medium |
| Consider introducing or improving loft insulation. | High |
| Consider introducing variable speed drives (VSD) for fans, pumps and compressors. | Medium |
| Engage experts to assess the air conditioning systems in accordance with CIBSE TM 44. (This could be an appropriate opportunity to engage an accredited energy assessor to undertake an inspection in compliance with the EPC Regulations SI 2007/991 as amended.) | High |
| Engage experts to survey the condition of the HWS systems and propose remedial and upgrading works to improve condition and operating efficiency. | High |
| Recommendation | Potential impact on carbon emissions |
|---|---|
| Consider engaging experts to review the condition of the building fabric and propose measures to improve energy performance. This might include building pressure tests for air tightness and thermography tests for insulation continuity. | High |
| Consider introducing/improving wall insulation (internal lining) to solid single skin structures. | High |
| Engage experts to propose specific measures to reduce hot water wastage and plan to carry this out. | Medium |
| Recommendation | Potential impact on carbon emissions |
|---|---|
| Engage experts to review overall heating strategy and propose an investment programme for upgrading and/or switching to alternative solutions. | High |
| Engage experts to review the building lighting strategies and propose alterations and/or upgrades to daylighting provisions, luminaries and their control systems and an implementation plan. | Medium |
| Engage experts to review the HWS systems provisions and propose remedial works, upgrades and/or alternative provisions to improve effectiveness and efficiency and plan for implementation. | High |
| Consider installing a ground source heat pump. | Medium |
| Consider installing building mounted solar water heating. | High |
| Recommendation | Potential impact on carbon emissions |
|---|---|
| Lift No. 2 to be upgraded, fitted with Energy meters and linked to SMART System (as lift No.1) | Low |
| Open a meaningful discussion with the operators of the WDHS to improve efficiencies (e.g. Consider efficiency benefits of upgrades to the WDHS underground distribution pipework the age of which varies. The area serving Whitehall is understood to be 1960?s and we are informed the older pipework has suffered calcification restricting the bore of the pipe and flow pressure.) Upgrade Calorifiers to plate heat exchangers. Recommend upgrade of Exiting controls to full BEMS System, which is compatible with TAC system. | High |
| Install power saving/automated options to equipment/small power other than computers to maximise efficiency | Medium |
| Consideration of other Energy Reports such as Project Iceberg and Project Green | High |
| Reduce the SET point of the Buildings to meet CIBSE guidelines of 20 degrees Office Work in Winter Months. | High |
Building and report details
- Building occupier
- Building type
- Building environment
- Heating and Natural Ventilation
- On-site renewable energy sources
- Not applicable
- Separable energy uses discounted
- Not applicable
- Electricity used
- 989241 kW h
- Gas used
- 439637 kW h
- Total useful floor area
- 6,745 square metres
- Building reference
- UPRN-100023336956
- Report issued on
- 16 September 2008
- Calculation tool
- ORCALC V1-05-02
- Type of inspection
- Physical
Assessor’s details
- Assessor’s name
- Richard Bryan
- Employer’s name
- Valuation Office Agency
- Employer’s address
- Government Buildings, Picton Terrace, Carmarthen, SA313BT
- Assessor ID
- BREC500002
- Accreditation scheme
- BRE
Other reports for this property
If you are aware of previous reports for this property and they are not listed here, please contact us at dluhc.digital-services@levellingup.gov.uk or call our helpdesk on 020 3829 0748 (Monday to Friday, 9am to 5pm).
- Report number
- 2950-2915-6724-2608-4125
- Valid until
- 23 May 2029
- Report number
- 9762-2004-0350-0200-3995
- Expired on
-
17 May 2022