???????? ??? ??? ??????? ??????????????? energy?although?????power????} ????|?????? ??? ??? a ??? ??????? ?????????????|?????? ?? ??? {??|??|??| ??????????? ?? ??? ?? ?? ?? ????? ??? ?? ?? ??????? ?? ????????SQL ???????????|????Google Analytics?_gid cookie ??? ??????????????? although?building??the web site?overall Performance? ?? ?? ??? ?? ?? {??|