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2018年，南方電(dian)(dian)網公司(si)完累計成西電(dian)(dian)東送電(dian)(dian)量2175億(yi)千(qian)瓦時(shi)，同比增長7.2%，超年度計劃224億(yi)千(qian)瓦時(shi)，連續7年創歷史新高，其中(zhong)清潔(jie)水電(dian)(dian)占(zhan)比達87%。

南方(fang)電(dian)網(wang)(wang)公司充(chong)分發(fa)揮大(da)電(dian)網(wang)(wang)資源優化配置(zhi)大(da)平臺作用，加強省間余缺調(diao)劑(ji)，加大(da)西部清潔能源消納。通過優化水電(dian)調(diao)度運(yun)行(xing)，主汛期云(yun)電(dian)送粵通道日均(jun)利(li)用小時數同比提高0.2小時。云(yun)南送出電(dian)量達1381億(yi)千(qian)瓦時，同比增長11.1%，首次(ci)突破1300億(yi)大(da)關。

超高(gao)(gao)壓公司加快西電(dian)東(dong)送(song)(song)通道(dao)建設，高(gao)(gao)質(zhi)量、高(gao)(gao)效率做好西電(dian)東(dong)送(song)(song)主網架設備運(yun)維(wei)管(guan)理。提前43天汛前建成投產滇西北直流(liu)(liu)工(gong)程(cheng)，全(quan)(quan)年(nian)(nian)送(song)(song)電(dian)達(da)(da)到(dao)181億(yi)千瓦(wa)時(shi)(shi)(shi)(shi)，超計(ji)劃31億(yi)千瓦(wa)時(shi)(shi)(shi)(shi)。魯(lu)西柔直利用小時(shi)(shi)(shi)(shi)數突(tu)破5000小時(shi)(shi)(shi)(shi)，創造了世界同類工(gong)程(cheng)最(zui)好運(yun)行紀錄。全(quan)(quan)年(nian)(nian)直流(liu)(liu)單極閉鎖次數同比(bi)減少10次，降幅53%。迎峰度(du)夏(xia)期間直流(liu)(liu)非計(ji)劃停運(yun)時(shi)(shi)(shi)(shi)間同比(bi)下(xia)降40%。三大特高(gao)(gao)壓直流(liu)(liu)(楚(chu)穗、普僑、新東(dong)直流(liu)(liu))整體通道(dao)全(quan)(quan)年(nian)(nian)利用小時(shi)(shi)(shi)(shi)數達(da)(da)到(dao)4900小時(shi)(shi)(shi)(shi)，比(bi)國家(jia)下(xia)達(da)(da)力(li)爭達(da)(da)到(dao)4500小時(shi)(shi)(shi)(shi)的目標高(gao)(gao)出400小時(shi)(shi)(shi)(shi),輸送(song)(song)電(dian)量全(quan)(quan)部為清(qing)潔水(shui)電(dian)。