หวยเด็ด 16/6/62 หลุดแล้ว ! หวยทำมือ @ต้นหอม ถูกล่าง 46 เต็มๆ **บนผิดแต้มเดียวคร่า
It is a standard calculation of your dwelling's energy performance, so basically it is to measure how much energy and carbon your house will use and produce annually. There are exceptions for certain categories of homes, for example, protected structures and certain temporary homes.
from: http://ezinearticles.com/?Building-Energy-Rating&id=6338821
