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7月24日，國家電(dian)網(wang)有限公(gong)司透露，該(gai)公(gong)司按照“兩(liang)加(jia)強、一保(bao)障(zhang)”的原則，推動(dong)特高壓(ya)配套(tao)電(dian)源全部(bu)移出緩建名(ming)單，在運9回特高壓(ya)直流通道平均利(li)用小時同(tong)比增加(jia)201小時。這(zhe)意味著隨著配套(tao)電(dian)源的陸續(xu)建設，特高壓(ya)輸電(dian)效率、聯網(wang)能力將進一步提高。

此(ci)前，由于配(pei)套(tao)電(dian)(dian)源(yuan)滯后(hou)，導致(zhi)部分特(te)高(gao)(gao)壓(ya)直(zhi)(zhi)流輸(shu)電(dian)(dian)效率沒有完全發揮，如世界首條以輸(shu)送(song)新能(neng)源(yuan)為主的酒泉-湖南特(te)高(gao)(gao)壓(ya)直(zhi)(zhi)流工程，由于配(pei)套(tao)火電(dian)(dian)電(dian)(dian)源(yuan)未投(tou)運，使得該工程最大(da)輸(shu)電(dian)(dian)能(neng)力僅(jin)(jin)為450萬(wan)(wan)(wan)千(qian)(qian)(qian)瓦(wa)，低于設計能(neng)力800萬(wan)(wan)(wan)千(qian)(qian)(qian)瓦(wa)；晉北-江蘇特(te)高(gao)(gao)壓(ya)直(zhi)(zhi)流工程除網對網匯集450萬(wan)(wan)(wan)千(qian)(qian)(qian)瓦(wa)電(dian)(dian)力外，僅(jin)(jin)有神(shen)泉一期2×60萬(wan)(wan)(wan)千(qian)(qian)(qian)瓦(wa)機(ji)組明確為配(pei)套(tao)改接電(dian)(dian)源(yuan)，其余3座、402萬(wan)(wan)(wan)千(qian)(qian)(qian)瓦(wa)配(pei)套(tao)電(dian)(dian)源(yuan)此(ci)前在(zai)國家停緩建名單內，未能(neng)充分發揮該直(zhi)(zhi)流800萬(wan)(wan)(wan)千(qian)(qian)(qian)瓦(wa)的外送(song)電(dian)(dian)能(neng)力。

同時，配套電(dian)源滯(zhi)后(hou)也影響(xiang)特(te)(te)高(gao)壓(ya)的(de)聯網能力。如在(zai)運的(de)蒙西(xi)(xi)-天津南、榆橫-濰(wei)坊兩條特(te)(te)高(gao)壓(ya)交流工程均(jun)在(zai)河北(bei)有落點，但由于配套電(dian)源建(jian)設(she)相(xiang)對(dui)滯(zhi)后(hou)，特(te)(te)高(gao)壓(ya)輸電(dian)能力未(wei)完全(quan)發揮；為(wei)(wei)提(ti)升晉北(bei)、晉中交流特(te)(te)高(gao)壓(ya)通(tong)(tong)道利用(yong)效率，山(shan)西(xi)(xi)500千伏“西(xi)(xi)電(dian)東送(song)(song)”通(tong)(tong)道調整為(wei)(wei)點對(dui)網通(tong)(tong)道，涉(she)及的(de)4座、342萬千瓦點對(dui)網外送(song)(song)電(dian)源此前亦在(zai)國家停(ting)緩(huan)建(jian)名單內。

據悉，正是(shi)特高壓等電(dian)網輸送效率提升，助力電(dian)力市場化交易規模大幅增(zeng)長(chang)，并促進了新(xin)能(neng)源(yuan)消納。上半(ban)年，國網經(jing)營(ying)區市場化交易電(dian)量7973億(yi)千(qian)瓦時(shi)，同(tong)比(bi)(bi)增(zeng)長(chang)23.7%，省間交易電(dian)量4641億(yi)千(qian)瓦時(shi)，同(tong)比(bi)(bi)增(zeng)長(chang)7.4%；國網經(jing)營(ying)區新(xin)能(neng)源(yuan)發電(dian)量3006億(yi)千(qian)瓦時(shi)，同(tong)比(bi)(bi)增(zeng)長(chang)16.4%，新(xin)能(neng)源(yuan)利用率96.1%，提高2.8個百分點(dian)。