There been formally founded 5 generator groups and 2 power grid corporations and 4 ancillary business groups in 2002 . this embodied the china energy industry from the vertically integrated utility to the restructured environment 2002年中國電力行業(yè)新組建的5家發(fā)電集團、2家電網(wǎng)公司、4家輔業(yè)集團正式成立,標(biāo)志著中國電力行業(yè)由壟斷經(jīng)營走向了市場競爭。