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Wren & Bell structural, civil and environmental consultants were awarded Partners in Technology funding in 1998 to undertake a sustainable housing development at Lower London Road in Edinburgh. This project builds on the expertise recognised by this award and extends the principles developed at Lower London Road and other sustainable developments into the commercial sector. In addition to the sustainable construction capability of Wren & Bell, the practice has also undertaken a number of industrial sustainability programmes, such as Glasgow Development Agency’s "Profit from Sustainability" Programme and the Scottish Borders Enterprise Eco-Industrial Project, where improvements to facilities management of a wide range of buildings were an integral part.

Agilent Technologies’s facilities management section has all the skills and experience that would be expected of a world-class company operating a large and diverse facility. This is illustrated by the wealth of detailed information generated by the section and the numerous successes they have had in the past in reducing the operational costs of their facilities. Some examples of recently reported data are included to demonstrate some of the efficiency improvements already achieved to date.

 

Utility

Utility saving measure

Estimated annual savings realised

Water Flush reduction system urinal
Air compressor cooling modifications

Environmental lab cooling modifications

Alter Social Club showers

4000 M3

50,000 M3

55,000 M3

5,000 M3

Gas Tuned boilers for max efficiency

Offset heating setpoint with O/S air temp

360 MW/Hrs

216 MW/Hrs

Electricity
High frequency, high efficiency light fittings

Higher efficiency chillers installation

Free cooling system for site cooling

Run around on heating coils to avoid mechanical cooling

Inverters on pumps & 2 port system

Review Lighting controls

Consolidate AHU’s

Optimize AHU control (time)

Switch off campaign

Compressor replacement with smaller more efficient units*

Change of Humidification design*

Offset cooling setpoint with O/S air temp

150 MW/Hrs

120 MW/Hrs

200 MW/Hrs

60 MW/Hrs

40 MW/Hrs

200 MW/Hrs

80 MW/Hrs

23 MW/Hrs

400 MW/Hrs

250 MW/Hrs

400 MW/Hrs

130 MW/Hrs

*these measures are currently being instigated and savings figures are projected.

 

Table 1: Estimated savings attributable to Energy saving projects over the past 6 years.

These and other measures have resulted in considerable savings in both financial and environmental costs for the company, as demonstrated by the following figures.

 

 

 

 

 

 

 

Figure 1: Utilities Cost / Floor Area, South Queensferry, 1988 - 1996

 

 

 

 

 

 

Figure 2: Electricity consumption at South Queensferry, 1993 - 1996

 

 

 

 

 

 

 

Figure 3: Gas consumption at South Queensferry, 1993 – 1996

These few examples give a small taste of some of the wealth of information available from just one site. Together with the data collected at the Ipswich and Bristol sites, this performance and refurbishment information will form the foundation of the project.

The other two partners, RSP Mechanical & Electrical Engineers and Parr Partners Architects, have both worked for Agilent Technologies for several years, and in many cases they are responsible for the execution of refurbishment schemes, installation of systems and design of buildings at the South Queensferry site. This detailed knowledge of the structures and systems will prove invaluable in the assessment of the facilities and refurbishment schemes. The team will also be able to draw on the extensive professional knowledge of two prestigious practices and benefit from the insights that they will bring to development of the best practice guide. As this guide is intended for use by Facilities Managers, M&E Engineers and Architects, among others, this contribution will be invaluable for the successful uptake of the project.

The team has already undertaken an extensive series of meetings to clarify the contribution of each partner and management of the overall project. The majority of the work will be undertaken directly by Wren & Bell’s sustainable construction team, which will minimise any project management difficulties that might arise. Production of project reports and the best practice guide will be undertaken within Wren & Bell’s ISO9001 quality management system, ensuring consistent quality and punctuality. The project partners will effectively act as sub-contractors to the project manager for the purposes of submitting technical information and submission quality will be controlled through existing quality systems. With regard to the IT capability of the team, Wren & Bell currently have two web sites, both developed in-house. This capability will be assisted by Agilent Technologies’s own programming section, which routinely develops branded software for the world market.

Benefits

The main benefit which will arise from this project is a quantifiable improvement in the sustainability of commercial buildings, with an associated reduction in environmental pollution. Additional benefits include a measurement of the overall sustainability of the commercial building stock, with a user-friendly tool to suggest steps for its improvement.

The project will deliver:

a programme to provide a measurable improvement in the sustainability of existing commercial buildings, building on established sustainability indicators,
a mechanism for dissemination of this programme, with an underlying structure to measure uptake and adoption of the programme,
integration of research into the sustainability of existing commercial buildings with sustainable design of new buildings and current refurbishment schemes.

This project is an initiative to address the issues of environmental degradation that result from the design and use of commercial buildings. It fills an existing gap in government energy-efficiency initiatives, the majority of which currently concentrate on domestic consumption.

The project will also directly benefit users of the best practice guide, including architects, engineers, facilities managers and anyone with an interest in the operation of commercial facilities. Provision of a user-friendly "ready reckoner" of sustainability will allow a comparison within and between facilities. A clearly marked "route map" towards improved sustainability will encourage these users to save money and the environment, while improving the quality and value of their facilities.