2020年是(shi)(shi)“十(shi)四(si)(si)(si)五(wu)”規劃(hua)謀(mou)篇(pian)布(bu)局之年,建言“十(shi)四(si)(si)(si)五(wu)”逐漸成(cheng)(cheng)為近期各(ge)種媒(mei)體的(de)(de)熱詞,我國“十(shi)四(si)(si)(si)五(wu)”相(xiang)關(guan)的(de)(de)討(tao)論(lun)(lun)還引發了(le)很(hen)多國外智庫參與。平(ping)心而論(lun)(lun),在(zai)各(ge)個領域關(guan)于“十(shi)四(si)(si)(si)五(wu)”的(de)(de)討(tao)論(lun)(lun)中(zhong),都(dou)沒有電(dian)力“十(shi)四(si)(si)(si)五(wu)”中(zhong)可再(zai)(zai)生(sheng)能(neng)源和傳統能(neng)源的(de)(de)討(tao)論(lun)(lun)激烈。“十(shi)四(si)(si)(si)五(wu)”可再(zai)(zai)生(sheng)能(neng)源要(yao)(yao)大(da)發展是(shi)(shi)行業的(de)(de)首要(yao)(yao)共(gong)識,但(dan)是(shi)(shi)要(yao)(yao)不(bu)(bu)要(yao)(yao)繼續上(shang)煤(mei)(mei)電(dian)、上(shang)多少(shao)煤(mei)(mei)電(dian),甚至要(yao)(yao)不(bu)(bu)要(yao)(yao)再(zai)(zai)用30年讓我國的(de)(de)煤(mei)(mei)電(dian)全部(bu)退出運(yun)行,成(cheng)(cheng)為了(le)“十(shi)四(si)(si)(si)五(wu)”可再(zai)(zai)生(sheng)能(neng)源規劃(hua)相(xiang)關(guan)討(tao)論(lun)(lun)甚至爭(zheng)論(lun)(lun)的(de)(de)主題之一。
為什么可(ke)再生能源(yuan)的(de)規劃會與(yu)煤(mei)電(dian)(dian)的(de)發(fa)(fa)展規劃“糾纏”如(ru)此之深?考(kao)慮到(dao)“十(shi)四五”也是我國電(dian)(dian)力市場化的(de)關鍵時期,可(ke)再生能源(yuan)規劃和煤(mei)電(dian)(dian)發(fa)(fa)展規劃是否要(yao)在(zai)市場化的(de)背景下予以考(kao)慮?可(ke)再生能源(yuan)為什么消納需要(yao)“和煤(mei)電(dian)(dian)等調節電(dian)(dian)源(yuan)在(zai)一起”?層(ceng)層(ceng)迷霧,看似(si)并非強相(xiang)關的(de)領域,卻經常(chang)出現“井水犯河(he)水”,從電(dian)(dian)力經濟學(xue)的(de)角度,可(ke)以找到(dao)清晰的(de)回答。
01可再生能源(yuan)發展和消納離不開調節機組的(de)發展壯大
目前到“十四五(wu)”,“上(shang)網”仍(reng)是可(ke)再(zai)生能源消納的(de)(de)最主要(yao)(yao)(yao)(yao)手段(duan),分布式供電(dian)雖然已經(jing)興起,但是“十四五(wu)”期間仍(reng)然難(nan)以(yi)作(zuo)為可(ke)再(zai)生能源發展(zhan)的(de)(de)主要(yao)(yao)(yao)(yao)方(fang)式,即使分布式供電(dian)也大多不(bu)能單獨成為一個孤立用能系統,仍(reng)然是以(yi)并網分布式為主。因此,討論“十四五(wu)”的(de)(de)可(ke)再(zai)生能源規(gui)劃(hua)和煤電(dian)發展(zhan)規(gui)劃(hua),都離不(bu)開共同(tong)的(de)(de)“東家”——大型(xing)電(dian)網背景下的(de)(de)電(dian)力系統。有(you)句俗話(hua)叫做“干活不(bu)由東,累死也無功”,要(yao)(yao)(yao)(yao)想在(zai)電(dian)力系統里(li)“吃飯”,得看看電(dian)力系統有(you)什(shen)么必須(xu)的(de)(de)要(yao)(yao)(yao)(yao)求(qiu)。那么大型(xing)電(dian)網正(zheng)常運(yun)行(xing)的(de)(de)首要(yao)(yao)(yao)(yao)需求(qiu)是什(shen)么呢?在(zai)n個9可(ke)靠性的(de)(de)要(yao)(yao)(yao)(yao)求(qiu)下,答案會變得非常簡單:安(an)全可(ke)靠、穩(wen)定供應(ying)。
不能(neng)(neng)(neng)連(lian)續穩定(ding)供(gong)(gong)電(dian)(dian)(dian)(dian)是(shi)(shi)(shi)可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan)與(yu)生(sheng)(sheng)俱來的(de)(de)(de)(de)(de)(de)天(tian)(tian)賦,即使建有龍(long)頭水(shui)庫的(de)(de)(de)(de)(de)(de)水(shui)電(dian)(dian)(dian)(dian),也(ye)(ye)不能(neng)(neng)(neng)擺脫來水(shui)極枯造成發(fa)電(dian)(dian)(dian)(dian)出力(li)(li)下降的(de)(de)(de)(de)(de)(de)可(ke)能(neng)(neng)(neng)。當然,隨著(zhu)可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan)預(yu)(yu)測(ce)技(ji)術的(de)(de)(de)(de)(de)(de)進步,可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)預(yu)(yu)測(ce)越來越準(zhun)確(que),這個(ge)問(wen)題(ti)能(neng)(neng)(neng)夠(gou)得到(dao)一(yi)(yi)定(ding)程度(du)的(de)(de)(de)(de)(de)(de)解決,但是(shi)(shi)(shi)可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan)靠(kao)天(tian)(tian)吃飯的(de)(de)(de)(de)(de)(de)一(yi)(yi)次(ci)動力(li)(li)1注定(ding)了,在(zai)現(xian)有的(de)(de)(de)(de)(de)(de)技(ji)術經(jing)濟(ji)條件下,可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan)預(yu)(yu)測(ce)不可(ke)能(neng)(neng)(neng)完全(quan)準(zhun)確(que),也(ye)(ye)不可(ke)能(neng)(neng)(neng)按照(zhao)系(xi)統需要的(de)(de)(de)(de)(de)(de)精度(du)和速度(du)進行大(da)幅(fu)調節。與(yu)此同時,隨著(zhu)社(she)會經(jing)濟(ji)的(de)(de)(de)(de)(de)(de)發(fa)展和人民生(sheng)(sheng)活(huo)水(shui)平的(de)(de)(de)(de)(de)(de)提高(gao),特(te)別(bie)是(shi)(shi)(shi)我國已經(jing)達(da)到(dao)的(de)(de)(de)(de)(de)(de)非同一(yi)(yi)般的(de)(de)(de)(de)(de)(de)供(gong)(gong)電(dian)(dian)(dian)(dian)可(ke)靠(kao)性,電(dian)(dian)(dian)(dian)力(li)(li)用(yong)(yong)戶承受停(ting)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)能(neng)(neng)(neng)力(li)(li)和心理預(yu)(yu)期(qi)不斷下降,換句話說電(dian)(dian)(dian)(dian)力(li)(li)用(yong)(yong)戶不接受規模較大(da)的(de)(de)(de)(de)(de)(de)意外停(ting)電(dian)(dian)(dian)(dian)。兩方面的(de)(de)(de)(de)(de)(de)此消彼長,造成可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)運(yun)行特(te)性確(que)實相對(dui)電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統的(de)(de)(de)(de)(de)(de)穩定(ding)運(yun)行是(shi)(shi)(shi)個(ge)不友好的(de)(de)(de)(de)(de)(de)短板,相對(dui)電(dian)(dian)(dian)(dian)力(li)(li)用(yong)(yong)戶高(gao)質(zhi)量(liang)用(yong)(yong)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)(de)期(qi)望(wang)是(shi)(shi)(shi)個(ge)不友好的(de)(de)(de)(de)(de)(de)短板,大(da)量(liang)接納存在(zai)弱點的(de)(de)(de)(de)(de)(de)可(ke)再(zai)生(sheng)(sheng)能(neng)(neng)(neng)源(yuan)(yuan),而不考慮其他措施,一(yi)(yi)定(ding)會引起電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統的(de)(de)(de)(de)(de)(de)可(ke)靠(kao)性下降,沒有煤電(dian)(dian)(dian)(dian),電(dian)(dian)(dian)(dian)力(li)(li)系(xi)統也(ye)(ye)無(wu)法運(yun)行。因此,所(suo)謂煤電(dian)(dian)(dian)(dian)快速退出實在(zai)是(shi)(shi)(shi)無(wu)稽之談。
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