What is the best word to be lowest in energy bill in an apartment, for example, 2 or 3 floors?

Answerman question : What is the very best word to do his greatest Bill on energy in an apartment, for example, 2 or three levels I, that there are several factors, but say the exact same complex, 2 storeys, in a four-season climate with hot summers and cold winters, my electricity bill would be lower on the initial or 2 Stock? What is a complex of 3 floors Finest Answer:

Green Energy Home