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Measures forDevelopment

of EnergyEfficientbuildings

Alfonso Johan

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Energy efficiency is the most important criterionfor sustainable development and is awardedmost points in achieving green building status

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To progress in sustainable development weneed a mindset change from Product toProcess

Product

Process

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Starting with building design, buildingsimulation can be used to achieve energyefficiency

!Employed early on!Allows whole

building analysis toenhance efficiency

!Providesquantitative check

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Passive solar design should be employedto maximize use of sun and wind toachieve low energy use for heating/cooling

!Use the bestlocation toreduce energy

profile!Design the

building withcorrect

orientation,aspect ratio,ventilation,insulation etc.

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By increasing thermal efficiency ofbuilding we can reduce heat island effect

!Reflective roofs thatreflect solar energyback into atmosphere

!Planting trees thatprovide shade

!Use materials thatdont absorb and storeheat

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Why wear a jacket indoors when outside is32C? We need to minimize internalenergy demands of building.

!Set the A/Ctemperature to areasonable value

e.g. 24C

!Use daylighting i.e.using the sun forindoor illumination

e.g. skylight,atrium

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Heating, Ventilation, A/C (HVAC) is one of thebiggest energy consumers. Increase itsefficiency to decrease consumption at source

!In Malaysia A/C ismain source ofconsumption

!In cold climate,heating is mainsource ofconsumption

!Use solar assistedHVAC

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Designers should make renewables aspart of the building to reap its benefits.

!Integrate photovoltaiccells in building design(BIPV)

!Wind Cheapest costper kWh. Require largearea and strong winds

!Biomass uses localvegetation as fuel.However non readilyavailable for buildings

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Taking the cue that green is a process not aproduct, procure responsibly from eco-labeledproducts and other sustainable materials

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It rains heavily in Malaysia, so why dont weuse it for non-potable use? Rainwaterharvesting is a good source of water.

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Innovate. Innovate. Innovate.

!Cradle to cradleproducts

!Products that donot requireadditionalresources e.g.waterless urinal

!Moisturetransfusivematerials

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What Teamwork is all about