Tuesday, February 16, 2010
The Green Equilibrium home currently under construction in Kamloops BC at Sun Rivers will be the green wall assembly I will compare to a conventional 2x6 wood frame home. Wood has the least amount of embodied energy. It is already known that the embodied energy of the materials in this type of home is significantly less than the green home materials. I will look at how the embodied energy compares to the energy efficiency of the home when it is being used. How long does it take for the green home make up for how much energy goes into constructing it?
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You are off to a good start. You have found a very practical application for your research. When compared to the energy required to operate a building over its lifetime, embodied energy is typically quite a small percentage (I have heard 15%), but if the operating energy is zero (as is the case in a net-zero building) then the embodied energy is a much greater percentage (possibly 100%) and should be looked at more closely. It would be interesting to calculate the embodied energy of the Green Dream Home and investigate how this energy could be reduced or offset (with carbon offsets or by adding extra PV panels to the project).
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