Quickly, on the passive homes side, the first time I read about passive homes was in George Monbiot's book Heat, back in 2005. He was talking about Germany and the explosion of passive homes there. It really addresses a lot more of the new home side. In Germany, I guess 33% of the energy needs to come from solar in new builds. Do you see, feasibly, from both a new home side and a retrofit side...do we have passive standards now for the retrofit side?
On February 8th, 2018. See this statement in context.