In changjiang riverbasin

winter is cold and summer is hot

and also there are large and new-demands for heat addition.If the heat addition form is the same as the North

then it will worsen the energy source load

so proposes that changjiang riverbasin should not develop the large-scale centralized heation or combined power

heating &cooling system but to develop all kinds of hcat pump systems

using one system to solve heating and cooling demands

and also using one dehumidifying system in summer and meiyu season.This sort of system

using electric energy as power source

may receive higher energy source utilization ratio and should be the prior architecture environment control form.