Sustainable Buildings

Tim Pollard

Trading Companies

• 1,600 Branches

• Most efficient supply chain

• Worldwide links

• 500,000 product lines

• Sustainable operation

What is sustainable development?

Economic Environmental

Social

Sustainable Development

Source: CPA

Non Domestic Buildings

It is estimated that 60% of the buildings that will be standing in 2050 have already been built

Carbon emissions from energy use in non-domestic buildings account for around 18% of total emissions

70% of non-domestic buildings pre-date Part L (1985)

40% of buildings in 2050 will pre-date Part L (1985)

New build represents 1-2% of floor space in any 1 year

UK Carbon Emissions by Sector

Potential Results

Inevitable link between scale of works and potential for carbon reductions

Principal Strategies

Fabric

Heating/Cooling

Lighting

Process

Behaviour

Most organisations find that a hefty 20-40% of their electricity costs come from lighting. Yet you can cut these costs by up to a third while reducing your carbon footprint and improving the working environment

Most manufacturing companies can make significant carbon savings in processes and service companies can save on often save on ICT

Efficient buildings and plant will count for little if we still tolerate wasteful behaviours

Maximising the efficiency of the building envelope and using insulants, natural light and air can make major contributions

Carbon Reduction

Heating and hot water can account for 60% of total energy costs In a typical office, air conditioning can account for over 30% of annual electricity consumption

Fabric

The more ‘efficient’ the building, the less energy used

Insulants Interior

Insulants Exterior

Glazing

Entrances and Exits

Air Tightness

Cold Bridging

Heating & Power

When energy use is unavoidable try to use renewable sources & improve system efficiency

Renewables

Solar thermal

Ground Source Heatpumps

Air Source Heatpumps

Biomass

Combined Heat and Power

Photovoltaics

Other

Controls

Variable Speed Pumps & Drives

Energy Efficient Boilers

Advanced LED Technology Multi-die LED technology Incorporates multiple LED’s in one package Provides increased light output in a reduced space Enables improved optical control for wider spread Available in 2900K warmwhite or 5000K coolwhite Colour rendering index of over 80 CRI 50,000 hr rated life

Lighting - LEDRetail

A typical retail environment, of 350 sq m, with 84 luminaires operating for an average of 70 hours a week.A standard 2x26W compact fluorescent (CFL) luminaire uses 17,428 Kwh per year. Using the axent RXD, the annual Kwh consumption is 11,313.The saving amounts to 6,115Kwh – or 35%

A typical school or college, at 1,600 sq m, operating 400 luminaires for 55 hours a week. Traditionally, using 2x26W CFL, the annual Kwh consumption is 65,208. Using RXD, the annual Kwh stands at 42,328 – a saving of 35%.

Education

Using Natural Light

Sunscoops

Rooflights

Lighting Measures

MEASURE % Savings

Localised instead of general lighting 60-80

Replace bulkhead tungsten GLS lamps with CFL versions 40-70

High frequency ballasts for fluorescent lamps 15-20

Replace old fluorescents with hf T5 20-25

Lighting Controls 20-50

Replace tungsten spotlights with tungsten halogen 30-75

Consider LEDs 35-75

Other Benefits Include

Reduced cost of operating with lower energy use

Reduced risks due to future energy cost and supply uncertainty

Better comfort, satisfaction and productivity for occupants

Recruiting and retaining quality staff by demonstrating corporate responsibility

Sales and marketing benefits from demonstrating a commitment to reducing carbon emissions

What are EHAs?

Enhanced Capital Allowances (ECAs) enable a business to claim 100% first-year capital allowances on their spending on qualifying plant and machinery. There are three schemes for ECAs:

– Energy-saving plant and machinery

– Low carbon dioxide emission cars and natural gas and hydrogen refuelling infrastructure

– Water conservation plant and machinery

Portcullis House

G

City Hall London

E

3 Whitehall Place (Department of Energy & Climate Change)

G

Government officials have officially confirmed that of almost 9,000 public buildings given DEC ratings last year, over 75% scored a D or lower rating.

Thank Youtim.pollard@wolseley.co.uk