Below is my business case presentation for the conversion of the currently storage area @ 602 Little Burke, Melbourne to a 4-Star rating office building base on Greenstar criteria.
Building energy performance simulation is done using Virtual Environment VE-Ware - a Building Information Software specifically design to calculate building energy performance.
Thing's I've learned:
In complex buildings, payback period for it to be sustainable are normally around 4-8 years. The extra cost can be as high as 50% if the building itself.
The most important thing to consider in complex building is the air conditioning. A good selection of air conditioning system will reduce building energy require as low as half as it was.
The second best argument for a business case for a sustainable building is the worker's productivity. Increment of comfort, may it be thermal, visual,...., will increase productivity. If an office has 100 employees, and these 100 employees are paid AUD60k/yr, an increment of 5% in productivity, will generate an extra AUD300k/yr for the company. Given this idiosyncratic calculation, you'll get the payback of your whole building in 12yrs.<--- this does not include air condition or 'sick leaves'.
Greetings from sunny SOuth Africa !
ReplyDeleteWhat design package are you using ?
Ecotect 2009 ?
nope... it's Virtual Environment. It's a product base on years of reseach by engineer for real world environment. I would suggest you to use Ecotect instead. Ecotect is more graphical and easier to use and information is just as acurate. Ecotect is just does't have as much option for data/information entry to calculate building performance. Virtual Environment has an option to quickly evaluate building performance base on Greenstar or LEEDS criteria - not sure if Ecotect has it. Hope this helps. Alios~!
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