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中國“可再生能源+儲能”模式面臨哪些機遇和挑戰?
發布者:lzx | 來源:第一財經 | 0評論 | 5135查看 | 2019-05-07 09:17:22    

由于可再(zai)生(sheng)能(neng)(neng)(neng)源發電和(he)(he)儲(chu)能(neng)(neng)(neng)系統成本的(de)快速降(jiang)低和(he)(he)性能(neng)(neng)(neng)改進,為“可再(zai)生(sheng)能(neng)(neng)(neng)源+儲(chu)能(neng)(neng)(neng)”模式的(de)推廣提供了(le)機遇


儲能技術(shu)與(yu)可(ke)(ke)再(zai)生(sheng)能源發電(dian)的結(jie)合應用,可(ke)(ke)能是實(shi)現(xian)未來可(ke)(ke)再(zai)生(sheng)能源大規模應用的重要手段。將儲能技術(shu)與(yu)可(ke)(ke)再(zai)生(sheng)能源發電(dian)技術(shu)相結(jie)合,可(ke)(ke)以(yi)使得儲能和可(ke)(ke)再(zai)生(sheng)能源成為(wei)一(yi)個聯(lian)合系統,從而減(jian)少波動,增強(qiang)電(dian)力系統的靈(ling)活性,使其輸出(chu)可(ke)(ke)控(kong)和可(ke)(ke)調度。


儲能技術與可再生能源發電(dian)的結合應用(yong)主要有(you)三種模式(shi)。


第一種是負(fu)荷管理(li),用(yong)(yong)于(yu)在可(ke)再生能源(yuan)發(fa)電(dian)過(guo)剩時(shi)存儲(chu)無法及時(shi)消納的電(dian)力,在用(yong)(yong)電(dian)高(gao)峰(feng)時(shi)對儲(chu)存的電(dian)力進行分配。當(dang)電(dian)網(wang)負(fu)荷低(di)時(shi),利用(yong)(yong)可(ke)再生能源(yuan)發(fa)電(dian)對儲(chu)能裝置進行充電(dian),當(dang)電(dian)網(wang)負(fu)荷高(gao)時(shi),由儲(chu)能裝置向電(dian)網(wang)供電(dian)。對于(yu)用(yong)(yong)戶而言(yan),在這種應(ying)用(yong)(yong)模式下,可(ke)以利用(yong)(yong)峰(feng)谷電(dian)價差(cha)套利。對于(yu)電(dian)網(wang)運營商而言(yan),采用(yong)(yong)這種應(ying)用(yong)(yong)模式可(ke)以實現所謂的削(xue)峰(feng)填谷,減(jian)少在電(dian)力傳輸環節的投資支出。


第(di)二(er)種是輸(shu)出(chu)管理(li),用于平抑可(ke)再(zai)(zai)生(sheng)能(neng)源(yuan)(yuan)輸(shu)出(chu)波動性(xing),在(zai)可(ke)再(zai)(zai)生(sheng)能(neng)源(yuan)(yuan)發(fa)電(dian)(dian)存在(zai)富余時進行儲(chu)存,在(zai)可(ke)再(zai)(zai)生(sheng)能(neng)源(yuan)(yuan)發(fa)電(dian)(dian)不足時發(fa)電(dian)(dian)使(shi)用。在(zai)可(ke)再(zai)(zai)生(sheng)能(neng)源(yuan)(yuan)發(fa)電(dian)(dian)系統中加入儲(chu)能(neng)裝置,可(ke)以在(zai)一定程(cheng)度上使(shi)電(dian)(dian)力輸(shu)出(chu)更加穩定,提升可(ke)再(zai)(zai)生(sheng)能(neng)源(yuan)(yuan)系統的(de)發(fa)電(dian)(dian)可(ke)靠性(xing)。


第三種是電(dian)源(yuan)(yuan)質(zhi)量管理,即為終端用(yong)戶(hu)提(ti)供持續的高質(zhi)量的供電(dian)服務。鑒于(yu)可再(zai)生(sheng)(sheng)能源(yuan)(yuan)電(dian)力(li)極易受到外界環境的影響,將儲(chu)能裝(zhuang)置作為備用(yong)電(dian)源(yuan)(yuan)與可再(zai)生(sheng)(sheng)能源(yuan)(yuan)電(dian)力(li)系統聯合使用(yong),可以(yi)應對因突發(fa)情況而導致的電(dian)力(li)中(zhong)斷問題,確保在可再(zai)生(sheng)(sheng)能源(yuan)(yuan)無法發(fa)電(dian)的期間仍然(ran)可以(yi)向用(yong)戶(hu)提(ti)供電(dian)力(li)。


由(you)于(yu)可(ke)(ke)(ke)再(zai)(zai)生(sheng)(sheng)能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)發(fa)(fa)(fa)(fa)電(dian)(dian)(dian)和儲能(neng)(neng)(neng)(neng)(neng)系統(tong)(tong)成(cheng)本的快速(su)降(jiang)低和性(xing)(xing)(xing)能(neng)(neng)(neng)(neng)(neng)改進,為“可(ke)(ke)(ke)再(zai)(zai)生(sheng)(sheng)能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)+儲能(neng)(neng)(neng)(neng)(neng)”模式(shi)的推廣提(ti)供了機遇(yu)。近(jin)年來可(ke)(ke)(ke)再(zai)(zai)生(sheng)(sheng)能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)發(fa)(fa)(fa)(fa)電(dian)(dian)(dian)行業大(da)規模發(fa)(fa)(fa)(fa)展(zhan),其發(fa)(fa)(fa)(fa)電(dian)(dian)(dian)成(cheng)本已經可(ke)(ke)(ke)以與(yu)傳統(tong)(tong)能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)相比(bi)(bi)擬,2018年中(zhong)國光(guang)伏(fu)發(fa)(fa)(fa)(fa)電(dian)(dian)(dian)度(du)(du)電(dian)(dian)(dian)成(cheng)本與(yu)十年前(qian)相比(bi)(bi)下(xia)降(jiang)了近(jin)90%,在(zai)部分光(guang)照資源(yuan)(yuan)(yuan)(yuan)豐富(fu)的地(di)區已實現與(yu)燃煤標桿上(shang)網電(dian)(dian)(dian)價平價的條件(jian)。但是(shi)由(you)于(yu)以風電(dian)(dian)(dian)光(guang)伏(fu)為代表的可(ke)(ke)(ke)再(zai)(zai)生(sheng)(sheng)能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)自身(shen)具(ju)有間斷性(xing)(xing)(xing)和波動性(xing)(xing)(xing)的特(te)點,要(yao)想實現大(da)范圍的調度(du)(du)消(xiao)納,就必須(xu)結合儲能(neng)(neng)(neng)(neng)(neng)系統(tong)(tong)的配(pei)合以增加可(ke)(ke)(ke)再(zai)(zai)生(sheng)(sheng)能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)發(fa)(fa)(fa)(fa)電(dian)(dian)(dian)的穩定性(xing)(xing)(xing)和可(ke)(ke)(ke)靠性(xing)(xing)(xing)。另一(yi)方面,新能(neng)(neng)(neng)(neng)(neng)源(yuan)(yuan)(yuan)(yuan)汽車發(fa)(fa)(fa)(fa)展(zhan)助(zhu)力鋰(li)電(dian)(dian)(dian)池行業的快速(su)發(fa)(fa)(fa)(fa)展(zhan),這(zhe)在(zai)一(yi)定程(cheng)度(du)(du)上(shang)也促進了儲能(neng)(neng)(neng)(neng)(neng)系統(tong)(tong)成(cheng)本下(xia)降(jiang),使鋰(li)電(dian)(dian)(dian)池儲能(neng)(neng)(neng)(neng)(neng)系統(tong)(tong)離商(shang)業化(hua)應(ying)用更近(jin)一(yi)步(bu)。


在(zai)政(zheng)策(ce)(ce)支持方面,近年(nian)來有關(guan)儲(chu)能(neng)(neng)產(chan)業(ye)的(de)利好(hao)政(zheng)策(ce)(ce)陸續(xu)出臺,對儲(chu)能(neng)(neng)行業(ye)發展的(de)支持力度不斷加(jia)大。2017年(nian)9月政(zheng)府發布《關(guan)于(yu)促進(jin)儲(chu)能(neng)(neng)技術與產(chan)業(ye)發展的(de)指(zhi)導意見(jian)》,明確指(zhi)出大力支持儲(chu)能(neng)(neng)系(xi)(xi)統在(zai)可(ke)再生(sheng)能(neng)(neng)源領域的(de)應用,鼓勵可(ke)再生(sheng)能(neng)(neng)源發電(dian)項(xiang)目配置儲(chu)能(neng)(neng)設施,促進(jin)可(ke)再生(sheng)能(neng)(neng)源消(xiao)納。之后從(cong)中(zhong)央到地(di)方先后出臺了一系(xi)(xi)列儲(chu)能(neng)(neng)行業(ye)政(zheng)策(ce)(ce),旨在(zai)推動儲(chu)能(neng)(neng)產(chan)業(ye)建(jian)設,促進(jin)可(ke)再生(sheng)能(neng)(neng)源消(xiao)納。這些(xie)政(zheng)策(ce)(ce)上的(de)利好(hao),也為“可(ke)再生(sheng)能(neng)(neng)源+儲(chu)能(neng)(neng)”的(de)發展提供了很好(hao)的(de)發展機(ji)遇。


而(er)從(cong)(cong)電(dian)(dian)池原材料(liao)資(zi)源(yuan)儲(chu)(chu)(chu)量的(de)角度出(chu)發,中(zhong)(zhong)國(guo)擁(yong)有很好的(de)鋰(li)礦(kuang)產資(zi)源(yuan)稟(bing)賦,據(ju)估(gu)計目(mu)前已(yi)探明鋰(li)礦(kuang)儲(chu)(chu)(chu)量約為(wei)(wei)320萬(wan)噸,主要分(fen)布(bu)在(zai)西(xi)北(bei)地區(qu),其中(zhong)(zhong)西(xi)藏、青海和四(si)川(chuan)地區(qu)的(de)鋰(li)礦(kuang)資(zi)源(yuan)最為(wei)(wei)豐(feng)富(fu)。鋰(li)礦(kuang)作為(wei)(wei)生產鋰(li)電(dian)(dian)池的(de)重(zhong)要原材料(liao),其豐(feng)富(fu)的(de)資(zi)源(yuan)儲(chu)(chu)(chu)量也為(wei)(wei)儲(chu)(chu)(chu)能(neng)發展提供(gong)了資(zi)源(yuan)保障。在(zai)技(ji)術方面(mian),在(zai)多(duo)年的(de)產業實(shi)踐(jian)中(zhong)(zhong)涌現了一批(pi)以寧德時代(dai)、比亞迪為(wei)(wei)代(dai)表(biao)的(de),在(zai)國(guo)際范圍內具有影響力的(de)儲(chu)(chu)(chu)能(neng)技(ji)術公司。因此(ci)無論是(shi)從(cong)(cong)資(zi)源(yuan)稟(bing)賦還(huan)是(shi)技(ji)術儲(chu)(chu)(chu)備方面(mian)來看,中(zhong)(zhong)國(guo)在(zai)“可再生能(neng)源(yuan)(光伏)+儲(chu)(chu)(chu)能(neng)”領域(yu)的(de)發展都(dou)有很大的(de)潛力。


但是,“可再生能(neng)源+儲(chu)能(neng)”的發展仍(reng)面臨許多問題和挑戰。


首(shou)先(xian),在政策方(fang)面,目前與儲能有關的行業政策大多(duo)還(huan)只停留(liu)在宏觀規劃(hua)層面,缺乏實施(shi)細則,尚未營造出(chu)有利于(yu)儲能行業發展的外部市場環境。相對于(yu)儲能的重要性,對于(yu)儲能行業的補貼和稅收激勵措(cuo)施(shi)還(huan)遠遠不夠。


其次,在商(shang)業模式(shi)方面(mian),儲能(neng)行(xing)業的(de)(de)盈利模式(shi)還是(shi)過于(yu)單一,主要依(yi)賴于(yu)從峰谷(gu)價(jia)差中進行(xing)套利。除了峰谷(gu)價(jia)差套利,儲能(neng)在電力輔助(zhu)服務(wu)以及輸配電等領域的(de)(de)價(jia)值也應該得(de)到挖掘(jue),以豐富“可再(zai)生(sheng)能(neng)源(yuan)+儲能(neng)”的(de)(de)盈利模式(shi)。


最后,在鋰(li)資源(yuan)開(kai)發方面,盡管擁有豐富的鋰(li)資源(yuan)儲量,但是由(you)于開(kai)發條件相對比(bi)較差,配套設施(shi)不完善以及(ji)環保因素,鋰(li)資源(yuan)的開(kai)發利用程(cheng)度還很低(di),目前大(da)量鋰(li)材料還依賴(lai)于國外進(jin)口,這為(wei)儲能(neng)行業(ye)的高速發展埋下隱患。


未來電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽車(che)(che)(che)(che)作為移動(dong)(dong)(dong)(dong)儲(chu)能裝(zhuang)置(zhi),實現電(dian)(dian)(dian)(dian)力(li)(li)(li)(li)在電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽車(che)(che)(che)(che)和電(dian)(dian)(dian)(dian)網(wang)間的(de)雙向輸出。鑒(jian)于電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽車(che)(che)(che)(che)的(de)快(kuai)速發展(zhan),每一個(ge)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽車(che)(che)(che)(che)的(de)動(dong)(dong)(dong)(dong)力(li)(li)(li)(li)電(dian)(dian)(dian)(dian)池都可(ke)以(yi)看作是(shi)一個(ge)移動(dong)(dong)(dong)(dong)的(de)儲(chu)能裝(zhuang)置(zhi)。目前電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽車(che)(che)(che)(che)產銷量快(kuai)速增(zeng)長,可(ke)以(yi)成為未來需要的(de)儲(chu)能裝(zhuang)機容量的(de)一個(ge)有力(li)(li)(li)(li)補充。但該模式的(de)實際應(ying)用(yong)(yong)還將面臨(lin)許(xu)多問題,例如用(yong)(yong)以(yi)支撐大量電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)汽車(che)(che)(che)(che)的(de)電(dian)(dian)(dian)(dian)力(li)(li)(li)(li)傳輸基礎(chu)設(she)施建(jian)設(she)。此外還需要借助(zhu)互聯網(wang),建(jian)設(she)一個(ge)為電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)車(che)(che)(che)(che)和電(dian)(dian)(dian)(dian)網(wang)之間互動(dong)(dong)(dong)(dong)提供信(xin)息交互的(de)平臺系(xi)統,為用(yong)(yong)戶提供互動(dong)(dong)(dong)(dong)信(xin)息服務(wu)。


退役電(dian)(dian)池梯級(ji)利用(yong)主要指(zhi)將電(dian)(dian)動汽車上(shang)不能滿足汽車正常行駛要求(qiu)(qiu),將達到退役標準的電(dian)(dian)池(比(bi)(bi)如說電(dian)(dian)池容(rong)量(liang)低于(yu)80%)拆卸下來(lai),經(jing)過回收等一系(xi)列工序(xu)后重新用(yong)于(yu)對電(dian)(dian)池容(rong)量(liang)和性能要求(qiu)(qiu)比(bi)(bi)較低的儲能領域。


在(zai)退役動(dong)力(li)電池(chi)(chi)梯(ti)次利用的(de)商業運作中(zhong),關鍵(jian)是(shi)把控退役電池(chi)(chi)再利用過程中(zhong)涉及的(de)各個環節的(de)成(cheng)本。政府一方面(mian)需要(yao)加大對(dui)退役動(dong)力(li)梯(ti)次利用領域的(de)科研投入,通過技術創(chuang)新降低梯(ti)次利用成(cheng)本。另一方面(mian),需要(yao)商業模式創(chuang)新,鼓勵回收企業實現規模化(hua)發展運營。因(yin)此,儲能行業在(zai)制定相關扶(fu)持政策時應包括退役動(dong)力(li)電池(chi)(chi)儲能的(de)運用。

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