WHICH IS A BETTER IDEA?

– 6 stars to 7 stars (cost $16,000 to $87,000)
– Save 330 to 950 kW, 300 to 900kg CO2, $80 to $230, per annum
– Nice payback period (not)

– 1 kW of additional PV in NSW (cost $300 – $500)
– Reduce grid consumption by 1,400 kW
– Sensible idea

– Blower door test (cost $450 to $1,000)
– Give us a way to measure performance, improve building practices, real savings not paper
– Make accountable

#building #architects #energy #windows #blowerdoor

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