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發展調峰電源和儲能是構建新型電力系統的基礎
發布者:admin | 來源:中國經濟導報 | 0評論 | 3221查看 | 2021-08-20 10:18:14    

近日,國家發展改革委發布《關于進一步完善分時電價機制的通知》。《通知》部署各地進一步完善分時電價機制,服務以新能源為主體的新型電力系統建設,促進能源綠色低碳發展。目前,全國已有29個省份實施了分時電價機制。


業(ye)內人士指出,受此(ci)政(zheng)策引導,煤(mei)電(dian)將(jiang)加(jia)快從基(ji)礎(chu)性電(dian)源(yuan)(yuan)向(xiang)調節性兜底保供電(dian)源(yuan)(yuan)轉型,此(ci)后(hou)電(dian)煤(mei)需(xu)求(qiu)增長將(jiang)得到有(you)效控制,能夠為實現碳達峰、碳中和(he)目標作出積極貢獻。


發展調峰電源和儲能是構建新型電力系統的基礎


近(jin)年來(lai),我(wo)國(guo)(guo)能(neng)源消費結構快速(su)變化。一方面,隨(sui)著我(wo)國(guo)(guo)產(chan)業結構的(de)(de)不斷優化和(he)(he)人民(min)生(sheng)活水平的(de)(de)不斷提(ti)高,三產(chan)和(he)(he)居民(min)生(sheng)活用電(dian)(dian)占比穩步提(ti)升(sheng),導致(zhi)我(wo)國(guo)(guo)用電(dian)(dian)峰谷差持(chi)續加大,全國(guo)(guo)日峰谷差比接近(jin)30%,部分(fen)大型城市已經達到40%。另一方面,為實現碳(tan)達峰、碳(tan)中和(he)(he)目標(biao),風電(dian)(dian)、光伏(fu)(fu)發(fa)(fa)電(dian)(dian)裝機規模和(he)(he)占比快速(su)提(ti)高。風電(dian)(dian)、光伏(fu)(fu)發(fa)(fa)電(dian)(dian)出(chu)力(li)(li)不穩定,特別是晚高峰時(shi)期光伏(fu)(fu)發(fa)(fa)電(dian)(dian)出(chu)力(li)(li)為零。用電(dian)(dian)負(fu)荷和(he)(he)發(fa)(fa)電(dian)(dian)出(chu)力(li)(li)兩方面的(de)(de)發(fa)(fa)展特性,給(gei)電(dian)(dian)力(li)(li)保供帶來(lai)了巨大挑(tiao)戰。因此,必須(xu)大力(li)(li)加強(qiang)調峰儲能(neng)建設,在風電(dian)(dian)、光伏(fu)(fu)發(fa)(fa)電(dian)(dian)大發(fa)(fa)時(shi)能(neng)夠(gou)降(jiang)低出(chu)力(li)(li)乃至(zhi)儲能(neng),在風電(dian)(dian)、光伏(fu)(fu)發(fa)(fa)電(dian)(dian)出(chu)力(li)(li)不足時(shi)能(neng)夠(gou)頂峰,才(cai)能(neng)保障(zhang)清潔能(neng)源充(chong)分(fen)消納,保障(zhang)電(dian)(dian)力(li)(li)供應安全穩定。


優(you)化(hua)峰谷分(fen)時電(dian)(dian)價機制是促進調(diao)峰電(dian)(dian)源(yuan)和(he)儲能發展的基礎性政(zheng)策。發展調(diao)峰電(dian)(dian)源(yuan)和(he)儲能極為迫切,但如果沒(mei)有相應能夠充分(fen)反映電(dian)(dian)力分(fen)時價值的價格信號,調(diao)峰電(dian)(dian)源(yuan)和(he)儲能市場化(hua)發展就不具備(bei)條件。


業(ye)(ye)內人士表示(shi),由(you)于此(ci)(ci)前我國電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)結構以(yi)(yi)(yi)煤電(dian)(dian)(dian)為主(zhu),煤電(dian)(dian)(dian)既(ji)是電(dian)(dian)(dian)量(liang)提(ti)供(gong)主(zhu)體(ti),也(ye)(ye)(ye)均(jun)衡承擔調(diao)(diao)峰(feng)(feng)責任。由(you)此(ci)(ci),電(dian)(dian)(dian)價機制方(fang)(fang)面進(jin)行了(le)合(he)理簡化(hua)(hua)(hua),主(zhu)要(yao)以(yi)(yi)(yi)均(jun)一(yi)電(dian)(dian)(dian)量(liang)電(dian)(dian)(dian)價為主(zhu),高(gao)峰(feng)(feng)用(yong)電(dian)(dian)(dian)、低(di)谷用(yong)電(dian)(dian)(dian)都(dou)是一(yi)個價,高(gao)峰(feng)(feng)發(fa)(fa)電(dian)(dian)(dian)、低(di)谷發(fa)(fa)電(dian)(dian)(dian)也(ye)(ye)(ye)都(dou)是一(yi)個價。但(dan)在(zai)以(yi)(yi)(yi)新能(neng)源(yuan)(yuan)(yuan)(yuan)為主(zhu)體(ti)的電(dian)(dian)(dian)力(li)(li)系統(tong)里,逐步(bu)(bu)由(you)清(qing)潔能(neng)源(yuan)(yuan)(yuan)(yuan)為主(zhu)提(ti)供(gong)電(dian)(dian)(dian)量(liang),但(dan)需要(yao)以(yi)(yi)(yi)調(diao)(diao)峰(feng)(feng)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)儲能(neng)為主(zhu)提(ti)供(gong)調(diao)(diao)峰(feng)(feng)服務,仍采用(yong)原有的均(jun)一(yi)電(dian)(dian)(dian)量(liang)電(dian)(dian)(dian)價,調(diao)(diao)峰(feng)(feng)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)儲能(neng)的價值無法(fa)體(ti)現(xian)(xian),也(ye)(ye)(ye)就無法(fa)實現(xian)(xian)市(shi)場化(hua)(hua)(hua)健康(kang)快速發(fa)(fa)展(zhan)(zhan)。上(shang)述負責人認為,國家發(fa)(fa)展(zhan)(zhan)改革委優(you)化(hua)(hua)(hua)峰(feng)(feng)谷分時(shi)電(dian)(dian)(dian)價機制,通(tong)過價格指導(dao)方(fang)(fang)式,大(da)力(li)(li)推動拉大(da)峰(feng)(feng)谷價差,通(tong)過最有效的方(fang)(fang)式為調(diao)(diao)峰(feng)(feng)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)儲能(neng)的市(shi)場化(hua)(hua)(hua)發(fa)(fa)展(zhan)(zhan)奠(dian)定了(le)基礎。可以(yi)(yi)(yi)展(zhan)(zhan)望,隨(sui)著電(dian)(dian)(dian)力(li)(li)現(xian)(xian)貨市(shi)場的進(jin)一(yi)步(bu)(bu)發(fa)(fa)展(zhan)(zhan)完(wan)善,調(diao)(diao)峰(feng)(feng)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)和(he)儲能(neng)還(huan)將進(jin)一(yi)步(bu)(bu)臻于完(wan)善,行業(ye)(ye)也(ye)(ye)(ye)將逐步(bu)(bu)迎來爆(bao)發(fa)(fa)式發(fa)(fa)展(zhan)(zhan)。


釋放清晰價格信號


煤(mei)(mei)電(dian)加快向(xiang)調峰(feng)電(dian)源轉型,積極助力(li)煤(mei)(mei)炭(tan)(tan)消(xiao)費控制。我(wo)國(guo)“十四五(wu)(wu)”時期(qi)(qi)嚴控煤(mei)(mei)炭(tan)(tan)消(xiao)費增長,“十五(wu)(wu)五(wu)(wu)”時期(qi)(qi)逐步減(jian)少。我(wo)國(guo)電(dian)煤(mei)(mei)消(xiao)費占煤(mei)(mei)炭(tan)(tan)消(xiao)費總(zong)量的一半(ban),承擔著(zhu)控制煤(mei)(mei)炭(tan)(tan)消(xiao)費的重要任務。煤(mei)(mei)電(dian)目(mu)前是也將長期(qi)(qi)是電(dian)力(li)系(xi)統十分重要的調峰(feng)電(dian)源。


“煤(mei)炭從(cong)以往的(de)基(ji)礎性(xing)電(dian)(dian)(dian)源向調(diao)節性(xing)兜底電(dian)(dian)(dian)源轉型,是(shi)(shi)實現保障電(dian)(dian)(dian)力(li)供應(ying)、控制煤(mei)炭消費‘魚與熊(xiong)掌’兼得的(de)最優選擇(ze),也是(shi)(shi)必然選擇(ze)。”業內人士表示(shi),優化峰(feng)谷分(fen)時(shi)電(dian)(dian)(dian)價(jia)政(zheng)策(ce)的(de)出臺十分(fen)及時(shi)、十分(fen)重(zhong)要,必將加快推動煤(mei)電(dian)(dian)(dian)轉型,在(zai)新型電(dian)(dian)(dian)力(li)系統中,煤(mei)電(dian)(dian)(dian)呈現高裝(zhuang)機容量、低利(li)用小(xiao)時(shi)的(de)發(fa)(fa)展趨勢,發(fa)(fa)電(dian)(dian)(dian)量及相應(ying)的(de)電(dian)(dian)(dian)煤(mei)消費均將得到(dao)有(you)效控制。


據悉,文件印發(fa)(fa)后,國家發(fa)(fa)展(zhan)改革委正(zheng)在抓(zhua)緊推動各地落實,預計在當前電(dian)力迎峰度夏高峰時(shi)期(qi)就能發(fa)(fa)揮呈(cheng)現,在保障電(dian)力供應的(de)同時(shi)有效(xiao)減少(shao)煤(mei)電(dian)發(fa)(fa)電(dian)量,預計煤(mei)炭消費增(zeng)長勢頭將得到有效(xiao)遏制,煤(mei)價也將很快回落到正(zheng)常(chang)水(shui)平。


長期有利于推進“雙碳”目標實現


近(jin)年來(lai),我國電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)市場上(shang),用電(dian)(dian)(dian)(dian)(dian)(dian)負(fu)荷對(dui)(dui)氣(qi)溫變化更加敏感,電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)系統(tong)負(fu)荷夏(xia)、冬兩季尖峰(feng)(feng)(feng)化特(te)征日益突(tu)出。據統(tong)計,各地(di)夏(xia)季最(zui)(zui)熱、冬季最(zui)(zui)冷時(shi)段的全(quan)年累計時(shi)間(jian)普(pu)遍(bian)低于60個小時(shi),但(dan)對(dui)(dui)應的尖峰(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)需(xu)求(qiu)可較(jiao)平時(shi)高出1億千瓦以(yi)(yi)上(shang),保(bao)障電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)系統(tong)安(an)(an)全(quan)穩定運(yun)行(xing)面(mian)臨更大(da)挑戰(zhan),去(qu)年以(yi)(yi)來(lai)部分地(di)方已不得(de)不實施有序用電(dian)(dian)(dian)(dian)(dian)(dian)。進一步完善分時(shi)電(dian)(dian)(dian)(dian)(dian)(dian)價(jia)機(ji)(ji)(ji)制(zhi),特(te)別(bie)是優化峰(feng)(feng)(feng)谷電(dian)(dian)(dian)(dian)(dian)(dian)價(jia)機(ji)(ji)(ji)制(zhi)、出臺尖峰(feng)(feng)(feng)電(dian)(dian)(dian)(dian)(dian)(dian)價(jia)機(ji)(ji)(ji)制(zhi),有利于充(chong)分發揮電(dian)(dian)(dian)(dian)(dian)(dian)價(jia)信(xin)號作用,引導用戶錯峰(feng)(feng)(feng)用電(dian)(dian)(dian)(dian)(dian)(dian),盡可能少地(di)啟動有序用電(dian)(dian)(dian)(dian)(dian)(dian),保(bao)障電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)系統(tong)安(an)(an)全(quan)穩定運(yun)行(xing),降低經(jing)濟社會運(yun)行(xing)成(cheng)本。


根據(ju)《2021年能源工作指(zhi)導意見》,2021年我國煤炭(tan)消費(fei)比重將下降(jiang)到56%以下,新增電能替代電量(liang)2000億(yi)千瓦時左右,電能占終端(duan)能源消費(fei)比重力爭達到28%左右。


“進(jin)一步完善(shan)分時電(dian)(dian)價(jia)機(ji)制(zhi),無論(lun)對(dui)短期(qi)保(bao)障電(dian)(dian)力安全穩(wen)定經濟運(yun)行、減少(shao)煤(mei)炭消耗(hao),還是對(dui)中(zhong)長期(qi)實現(xian)碳(tan)達(da)峰、碳(tan)中(zhong)和(he)目(mu)標都(dou)具有積(ji)極意義(yi)。”業內人士表示(shi),優化峰谷(gu)電(dian)(dian)價(jia)機(ji)制(zhi),既可以(yi)引導用戶實施電(dian)(dian)能替代、改變用能習(xi)慣和(he)結構,又(you)可以(yi)促進(jin)以(yi)新(xin)能源為(wei)主的新(xin)型電(dian)(dian)力系統(tong)的供需平(ping)衡,減少(shao)煤(mei)電(dian)(dian)發(fa)電(dian)(dian)量(liang),降低電(dian)(dian)力系統(tong)對(dui)煤(mei)炭的依賴(lai),對(dui)現(xian)階段(duan)旺盛的煤(mei)炭需求和(he)高企的煤(mei)炭價(jia)格也將(jiang)產生重大影響。

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