按規(gui)定月平均功(gong)率(lv)因數(shu)(shu)(shu)(shu)不(bu)得低于0.9，低于0.9則(ze)按規(gui)定的百(bai)(bai)分(fen)(fen)數(shu)(shu)(shu)(shu)與用戶的總電(dian)費相(xiang)乘來增(zeng)加電(dian)費，功(gong)率(lv)因數(shu)(shu)(shu)(shu)越低，增(zeng)收的百(bai)(bai)分(fen)(fen)數(shu)(shu)(shu)(shu)越大;高(gao)于0.9則(ze)按規(gui)定百(bai)(bai)分(fen)(fen)數(shu)(shu)(shu)(shu)減收用戶電(dian)費，但減收的百(bai)(bai)分(fen)(fen)數(shu)(shu)(shu)(shu)比增(zeng)收的百(bai)(bai)分(fen)(fen)數(shu)(shu)(shu)(shu)相(xiang)應要小，當(dang)功(gong)率(lv)因數(shu)(shu)(shu)(shu)在(zai)0.95—1時(shi)，減收的百(bai)(bai)分(fen)(fen)數(shu)(shu)(shu)(shu)一(yi)直(zhi)為(wei)-0.75%，而不(bu)再提高(gao)了。

　　因此(ci)用戶的月平(ping)均(jun)功(gong)(gong)率因數(shu)一(yi)般控(kong)制在0.9—0.95左右(you)比較適宜，最好不要(yao)大于0.95，一(yi)方面(mian)0.95以(yi)上獎勵百分數(shu)不變(bian)，而(er)補償電(dian)容的增加會使用電(dian)增加;另一(yi)方面(mian)要(yao)考慮當負荷(he)突變(bian)下降時，會造成無(wu)(wu)功(gong)(gong)倒(dao)送的可能，因為無(wu)(wu)功(gong)(gong)電(dian)表對正向或反向的無(wu)(wu)功(gong)(gong)電(dian)量都是累計(ji)計(ji)量的，因此(ci)反而(er)會降低用戶的功(gong)(gong)率因數(shu)。