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自1993年、2013年云南(nan)先后向廣東、廣西(xi)送(song)(song)電(dian)(dian)開始，截至2016年3月7日，云南(nan)省西(xi)電(dian)(dian)東送(song)(song)電(dian)(dian)量(liang)累(lei)計突破4500億千瓦時，達(da)(da)4561億千瓦時。預計2016年最(zui)高送(song)(song)電(dian)(dian)量(liang)將達(da)(da)935億千瓦時，是西(xi)電(dian)(dian)東送(song)(song)實施之初(chu)的170倍，為南(nan)方區(qu)域東西(xi)部能源結構優(you)化、經(jing)濟社會協調發(fa)展發(fa)揮了重(zhong)要的作用。

云(yun)南省(sheng)(sheng)是(shi)(shi)全國較早實施西電(dian)(dian)(dian)東送(song)工程的省(sheng)(sheng)份之一(yi)，在(zai) 2002年(nian)底(di)南方電(dian)(dian)(dian)網公司成立后發(fa)展速(su)度(du)進一(yi)步加快，尤(you)其是(shi)(shi)“十二五(wu)”期(qi)間(jian)實現(xian)了跨越發(fa)展，送(song)電(dian)(dian)(dian)最(zui)高負荷達(da)1925萬千瓦，分別(bie)是(shi)(shi)1993年(nian)送(song)電(dian)(dian)(dian)之初(chu)、“十一(yi)五(wu)”末(mo)的77、2.5倍(bei)；最(zui)高年(nian)送(song)電(dian)(dian)(dian)量達(da)945.8億千瓦時(shi)，分別(bie)是(shi)(shi)1993年(nian)送(song)電(dian)(dian)(dian)之初(chu)、“十一(yi)五(wu)”末(mo)的172倍(bei)、2.9倍(bei)。

目(mu)前，南(nan)方(fang)(fang)電(dian)(dian)(dian)(dian)(dian)網(wang)公司(si)已在(zai)云(yun)南(nan)建成了(le)“四條(tiao)直(zhi)(zhi)(zhi)流(liu)(liu)、五(wu)條(tiao)交(jiao)流(liu)(liu)”西(xi)電(dian)(dian)(dian)(dian)(dian)東送(song)主通道(dao)。2016年汛期，隨(sui)(sui)著云(yun)南(nan)金沙江中游電(dian)(dian)(dian)(dian)(dian)站送(song)電(dian)(dian)(dian)(dian)(dian)廣(guang)(guang)西(xi)直(zhi)(zhi)(zhi)流(liu)(liu)輸(shu)電(dian)(dian)(dian)(dian)(dian)工(gong)程、永(yong)仁(ren)至(zhi)富(fu)寧±500千伏(fu)直(zhi)(zhi)(zhi)流(liu)(liu)輸(shu)變電(dian)(dian)(dian)(dian)(dian)工(gong)程、魯西(xi)背靠背直(zhi)(zhi)(zhi)流(liu)(liu)異(yi)步聯網(wang)工(gong)程的(de)(de)投(tou)產(chan)，云(yun)南(nan)電(dian)(dian)(dian)(dian)(dian)網(wang)將(jiang)實現與南(nan)方(fang)(fang)電(dian)(dian)(dian)(dian)(dian)網(wang)主網(wang)異(yi)步聯網(wang)運行，云(yun)南(nan)將(jiang)形成7條(tiao)直(zhi)(zhi)(zhi)流(liu)(liu)主通道(dao)，西(xi)電(dian)(dian)(dian)(dian)(dian)東送(song)能力將(jiang)提升至(zhi)2455萬(wan)千瓦(wa)(wa)。“十三五(wu)”期間，隨(sui)(sui)著滇西(xi)北送(song)電(dian)(dian)(dian)(dian)(dian)廣(guang)(guang)東±800千伏(fu)特高壓直(zhi)(zhi)(zhi)流(liu)(liu)工(gong)程的(de)(de)投(tou)運，云(yun)南(nan)西(xi)電(dian)(dian)(dian)(dian)(dian)東送(song)將(jiang)形成8條(tiao)直(zhi)(zhi)(zhi)流(liu)(liu)主通道(dao)，送(song)電(dian)(dian)(dian)(dian)(dian)總規模將(jiang)達2950萬(wan)千瓦(wa)(wa)，年送(song)電(dian)(dian)(dian)(dian)(dian)量將(jiang)維(wei)持在(zai)1000億千瓦(wa)(wa)時以上(shang)。