Passive house is a very high standard, and I do not think it is very practical to do it at large scale. Aiming for something that can be net zero is probably m

Passive house is a very high standard, and I do not think it is very practical to do it at large scale. Aiming for something that can be net zero is probably more practical: building stringently up to a certain point, and then throw some PV panels to offset whatever expected energy use is remaining.