Albert Young – University of GlasgowAllan Crooks – Carbon Trust

Case Studies

Glasgow Background

25,000 people, diverse buildings portfolio

Research led institution with an annual turnover of £300m

Annual utilities cost - £5m – Power prices have doubled after being fixed for 4 yrs– 50% green power - CO2 reduced by ~ 10,000Tpa

Energy efficiency accredited

Carbon Trust Service Delivery

Providing support through specialist advice and consultancy services

Areas of support focused on

– Design advice for capital projects• 3 new buildings presented opportunities to make use of the Carbon Trust service• BRE appointed as advisors to all 3 projects

– Energy efficiency services in other areas • Providing surveys on the built environment• Identify technical solutions to carbon saving opportunities

Energy Efficiency Services

Examples of the work done

Free Energy efficiency surveys– Identifying energy savings opportunities in space heating, lighting, controls etc

Analyses of aerial thermal image heat loss survey results– Survey of hot spot properties - loft insulation upgraded from 50mm to 150mm

Cooling of new IT server room– Free cooling - use air cooled batteries to cool the chilled water

Update of energy conservation specification – Incorporated into project briefing docs

Biomass boiler pre-feasibility

Ratification of energy conservation investments– Seeking recognition within EU-ETS for previous investments

 Project

Description 

Cost (£)

Financial Savings

(£)

CO2 Savings

tCO2

 

Payback yrs

Campus district heating - various insulation upgrades

 

22,700 

7,175 

54.7 

3.2

Hunterian MuseumFan convector control

 

6,900 

2,900 

22.1

 

2.4

Computing ScienceBoiler upgrade

 

22,500 

4,500 

34.3 

5.0

Main BoilersSequencing control

 

2,300 

1,600 

12.2 

1.4

Main BoilersOxygen trim

 

34,500 

10,000 

76 

3.5

Davidson BuildingRefrigerator motor control

 

10,600 

5,000 

28.3 

2.1

Proposed Energy Conservation Projects

Rowardennan Marine Biology Research Station

Built on the shores of Loch Lomond Phase 1 is to replace existing facilities and provide first class research

facilities Brief to exceed environmental good practice and create a building with

low running costs and low Carbon emissions Passive energy design strategy specified for the building - narrow plan

for effective daylighting, passive ventilation, selection of high thermal mass materials etc

Adopted BREEAM environmental assessments– Detailed assessment of a broad range of

environmental topics

Design Advice Service

The Carbon Trust funded a comprehensive energy review of the design

BRE was commissioned to:– Provide advice to design team and client with regard to the options for

sustainable energy sources

– Complete a passive design strategy analyses • Based on the stage ‘D’ report, this covered - the design intent, the

site,design approach and materials.

– Define a set of performance targets for the building

Design Advice Outcome

Options for sustainability – Micro hydro power, wind, biomass and ground source heat pump were reviewed

recommending a GSHP (closed loop borehole option)– Hydro electricity investigations ongoing

Passive design strategy analyses– Confirmed that good environmental practice was being followed with regard to

passive design of the building.

Assessment of environmental targets for the building– The building is set to exceed good practice by 19% and be 45% more efficient than a

comparable academic building

Technical Report – Steam Systems

Technical Report – Steam Systems

Technical Report – Steam Systems

Technical Report – Steam Systems

Technical Advice

Insulation savings

Recommendations

- Fit insulation to pipes and valves

Savings 111.5MWh, £2,600 pa

22 tCO2 Reduction pa

Infrared Thermography

Plate Heat Exchangers

Lighting Study

Lighting Study

Lighting 40% of Elec. consumption

Savings 5,625MWh, £180,000 pa

2418 tCO2 Reduction pa

Recommendations

- Lamp replacement

- New Fittings

- Improved control

- Improved maintenance

Questions?