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數據中心應加大清潔低碳用電步伐,引領能源轉型
發布者:lzx | 來源:新華網 | 0評論 | 4987查看 | 2020-07-24 16:14:28    

近十多年,我國數字經濟持續增長。2019年數字經濟對GDP增長的貢獻率達到67.7%,成為驅動我國經濟增長的核心力量。數據中心是集中儲存和處理數據的設施,是科技創新與技術應用的實體,是數字經濟發展的基石。網民數量與移動流量的迅猛增長,大數據與人工智能對數據存儲和計算的巨大需求,共同推動了我國數據中心規模化增長。數據中心用電負荷巨大,部分用電負荷具有時間和空間上的可控性。充分利用數據中心用電負荷特性,使數據中心從“黑色”能源的消費者,轉變為“綠色”可再生能源的產消者和驅動者大有可為。


數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)數(shu)(shu)(shu)量(liang)(liang)與機(ji)(ji)(ji)架數(shu)(shu)(shu)量(liang)(liang)劇增(zeng)(zeng),電(dian)(dian)(dian)力需求(qiu)增(zeng)(zeng)長迅猛。截至(zhi)2018年底,我國數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)總(zong)(zong)(zong)量(liang)(liang)已超(chao)過40萬個,大型(xing)及以(yi)上數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)的總(zong)(zong)(zong)機(ji)(ji)(ji)架數(shu)(shu)(shu)達204萬個。預計2020年和2025年,大型(xing)及以(yi)上數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)機(ji)(ji)(ji)架數(shu)(shu)(shu)量(liang)(liang)將(jiang)(jiang)分(fen)別達到498萬和802萬個。數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)數(shu)(shu)(shu)量(liang)(liang)及機(ji)(ji)(ji)架數(shu)(shu)(shu)量(liang)(liang)的大幅增(zeng)(zeng)加(jia),將(jiang)(jiang)導致數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)電(dian)(dian)(dian)力需求(qiu)不斷(duan)增(zeng)(zeng)長。2018年我國數(shu)(shu)(shu)據(ju)中(zhong)(zhong)(zhong)心(xin)(xin)用(yong)電(dian)(dian)(dian)總(zong)(zong)(zong)量(liang)(liang)為1,609億千瓦(wa)(wa)時,占全社會總(zong)(zong)(zong)用(yong)電(dian)(dian)(dian)量(liang)(liang)的2.35%。預計2020年用(yong)電(dian)(dian)(dian)總(zong)(zong)(zong)量(liang)(liang)將(jiang)(jiang)達2,023億千瓦(wa)(wa)時,占全社會用(yong)電(dian)(dian)(dian)總(zong)(zong)(zong)量(liang)(liang)的2.7%;2030年將(jiang)(jiang)突破4,000億千瓦(wa)(wa)時,占全社會用(yong)電(dian)(dian)(dian)總(zong)(zong)(zong)量(liang)(liang)的3.7%。


今年以來(lai),突如其來(lai)的新冠肺炎(yan)疫情,使數(shu)(shu)字技術、數(shu)(shu)字產業和數(shu)(shu)字服務(wu)在經(jing)濟社會運行中(zhong)的重要作用更加(jia)突出。快(kuai)速發展(zhan)的數(shu)(shu)字經(jing)濟在很大程度上對沖(chong)了新冠疫情的負面影(ying)響。分析(xi)表(biao)明,后疫情時代,人們(men)的生產生活(huo)方式(shi)將發生深刻變化(hua)。數(shu)(shu)據中(zhong)心建設(she)既是已經(jing)啟動的大規模“新基建”計劃(hua)的重要內容(rong),也將成為經(jing)濟長遠發展(zhan)的重要支撐。可以預(yu)(yu)見,數(shu)(shu)據中(zhong)心的數(shu)(shu)量將遠超(chao)原有(you)的預(yu)(yu)測水平,數(shu)(shu)據中(zhong)心能耗(hao)將爆發性增長。


數據(ju)中(zhong)(zhong)心(xin)應加大(da)(da)(da)清潔低碳(tan)用(yong)(yong)(yong)電步(bu)伐(fa),引領能(neng)(neng)(neng)源(yuan)轉型(xing)。數據(ju)中(zhong)(zhong)心(xin)在(zai)使用(yong)(yong)(yong)電能(neng)(neng)(neng)的過程中(zhong)(zhong),會產生(sheng)大(da)(da)(da)量污染物排放(fang)。2011年以(yi)來,國(guo)(guo)際互聯網(wang)行(xing)業(ye)(ye)通過投資建設可(ke)(ke)再(zai)(zai)生(sheng)能(neng)(neng)(neng)源(yuan)發(fa)電站、從可(ke)(ke)再(zai)(zai)生(sheng)能(neng)(neng)(neng)源(yuan)發(fa)電企業(ye)(ye)直接購電等方(fang)式,正逐步(bu)向“100%可(ke)(ke)再(zai)(zai)生(sheng)能(neng)(neng)(neng)源(yuan)(使用(yong)(yong)(yong))目標”邁進。我國(guo)(guo)互聯網(wang)科(ke)技已處于世(shi)界領先(xian)地,但是該行(xing)業(ye)(ye)尚(shang)未形成(cheng)大(da)(da)(da)規模利用(yong)(yong)(yong)可(ke)(ke)再(zai)(zai)生(sheng)能(neng)(neng)(neng)源(yuan)電力的趨勢(shi)。2018年可(ke)(ke)再(zai)(zai)生(sheng)能(neng)(neng)(neng)源(yuan)電力在(zai)我國(guo)(guo)數據(ju)中(zhong)(zhong)心(xin)行(xing)業(ye)(ye)用(yong)(yong)(yong)電占比(bi)為23%,低于全社會26.5%可(ke)(ke)再(zai)(zai)生(sheng)能(neng)(neng)(neng)源(yuan)用(yong)(yong)(yong)電水平。我國(guo)(guo)數據(ju)中(zhong)(zhong)心(xin)行(xing)業(ye)(ye)應改變用(yong)(yong)(yong)能(neng)(neng)(neng)方(fang)式,加快清潔低碳(tan)用(yong)(yong)(yong)電步(bu)伐(fa),應成(cheng)為能(neng)(neng)(neng)源(yuan)密(mi)集型(xing)行(xing)業(ye)(ye)能(neng)(neng)(neng)源(yuan)轉型(xing)的典范(fan)。


由于(yu)我國(guo)(guo)分布(bu)式能(neng)源、微電(dian)(dian)網、局域電(dian)(dian)網接入大電(dian)(dian)網還存在(zai)諸多困難,加之(zhi)我國(guo)(guo)電(dian)(dian)力(li)市場(chang)建設(she)滯后以(yi)及“綠(lv)色電(dian)(dian)力(li)”交(jiao)易剛(gang)剛(gang)起步(bu),數(shu)(shu)(shu)據中心(xin)缺乏采購可再生(sheng)能(neng)源的(de)制度安(an)排(pai)(pai)和商(shang)業渠道,因此(ci),國(guo)(guo)際機(ji)構(gou)在(zai)估(gu)計我國(guo)(guo)數(shu)(shu)(shu)據中心(xin)的(de)污(wu)染物排(pai)(pai)放(fang)時往往認(ren)定其(qi)主要使用了燃煤火電(dian)(dian)。據此(ci)測算,2018年我國(guo)(guo)數(shu)(shu)(shu)據中心(xin)火電(dian)(dian)使用量約(yue)為1,171.81億千瓦時,帶來了4,687噸(dun)煙(yan)塵(chen),23,436噸(dun)二(er)氧(yang)化硫(liu),22,264噸(dun)氮氧(yang)化物以(yi)及9,855萬噸(dun)二(er)氧(yang)化碳等污(wu)染物排(pai)(pai)放(fang)。


數據(ju)(ju)(ju)中(zhong)(zhong)心(xin)(xin)部分(fen)電力負(fu)荷的(de)(de)時(shi)(shi)空可控性,有(you)利于促(cu)進可再生能源(yuan)消納(na)。數據(ju)(ju)(ju)中(zhong)(zhong)心(xin)(xin)工作(zuo)負(fu)載(zai)具(ju)有(you)時(shi)(shi)間(jian)上(shang)的(de)(de)靈活性。數據(ju)(ju)(ju)中(zhong)(zhong)心(xin)(xin)處(chu)理的(de)(de)信(xin)息數據(ju)(ju)(ju),取決于用戶的(de)(de)網絡使(shi)用行為,具(ju)有(you)較大的(de)(de)隨(sui)機性和不(bu)確定性。但是(shi),數據(ju)(ju)(ju)中(zhong)(zhong)心(xin)(xin)中(zhong)(zhong)的(de)(de)批(pi)處(chu)理數據(ju)(ju)(ju)只(zhi)要在(zai)規定時(shi)(shi)間(jian)內處(chu)理完畢(bi)即(ji)可,非實時(shi)(shi)任務可以適當(dang)轉移或(huo)者(zhe)延遲(chi)處(chu)理。換言之,數據(ju)(ju)(ju)中(zhong)(zhong)心(xin)(xin)這些工作(zuo)負(fu)載(zai)在(zai)時(shi)(shi)間(jian)上(shang)具(ju)有(you)靈活性。與(yu)此同(tong)時(shi)(shi),數據(ju)(ju)(ju)中(zhong)(zhong)心(xin)(xin)工作(zuo)負(fu)載(zai)還具(ju)有(you)空間(jian)上(shang)的(de)(de)靈活性。


同一云服務提供商,可在(zai)(zai)多地(di)擁有數據(ju)(ju)(ju)中心(xin),各數據(ju)(ju)(ju)中心(xin)之(zhi)間(jian)通過(guo)光(guang)纖等傳輸設(she)備,實現異地(di)數據(ju)(ju)(ju)和工作負載(zai)轉移。數據(ju)(ju)(ju)中心(xin)工作負載(zai)在(zai)(zai)時間(jian)和空間(jian)上的靈活性,反映在(zai)(zai)其用電特性方面就是電力負荷的時空可控(kong)性。從(cong)這(zhe)種意義上講,數據(ju)(ju)(ju)中心(xin)能夠(gou)根據(ju)(ju)(ju)電力調度中心(xin)的需要,主動進行需求響應,乃至發揮(hui)“虛擬電廠”的功(gong)效。


數(shu)據(ju)中(zhong)心(xin)用(yong)電(dian)(dian)負(fu)荷(he)(he)的(de)時空可(ke)控性,為(wei)其促進(jin)我(wo)國(guo)西部(bu)(bu)風(光(guang))電(dian)(dian)等(deng)(deng)間歇性可(ke)再(zai)(zai)生(sheng)(sheng)能(neng)源(yuan)(yuan)消納提供(gong)了重要條件。在我(wo)國(guo),集中(zhong)式風電(dian)(dian)、光(guang)伏(fu)發電(dian)(dian)等(deng)(deng)可(ke)再(zai)(zai)生(sheng)(sheng)能(neng)源(yuan)(yuan)多分(fen)布(bu)在西部(bu)(bu),而(er)(er)互聯(lian)網(wang)、大數(shu)據(ju)、人(ren)工智能(neng)等(deng)(deng)產業多分(fen)布(bu)在東(dong)(dong)(dong)部(bu)(bu)。數(shu)據(ju)中(zhong)心(xin)在時間維(wei)(wei)度(du)(du)上(shang)(shang)轉移(yi)負(fu)載(zai),可(ke)以為(wei)電(dian)(dian)力系(xi)統提供(gong)調峰、調頻(pin)等(deng)(deng)服務等(deng)(deng)輔(fu)助服務;在空間維(wei)(wei)度(du)(du)上(shang)(shang)優化(hua)調控負(fu)荷(he)(he),可(ke)以推進(jin)數(shu)據(ju)算力跨區域流通,實現“東(dong)(dong)(dong)數(shu)西算”,從(cong)而(er)(er)增加“西電(dian)(dian)東(dong)(dong)(dong)送(song)”通道的(de)可(ke)再(zai)(zai)生(sheng)(sheng)能(neng)源(yuan)(yuan)輸送(song)能(neng)力。例(li)如,如果對東(dong)(dong)(dong)部(bu)(bu)一(yi)(yi)個30兆(zhao)瓦的(de)數(shu)據(ju)中(zhong)心(xin)的(de)電(dian)(dian)力負(fu)荷(he)(he)進(jin)行(xing)時空調控,將其三(san)分(fen)之一(yi)(yi)的(de)批處(chu)理負(fu)載(zai)轉移(yi)至西部(bu)(bu)數(shu)據(ju)中(zhong)心(xin)處(chu)理,就可(ke)以在西部(bu)(bu)地區可(ke)再(zai)(zai)生(sheng)(sheng)能(neng)源(yuan)(yuan)富(fu)余時段為(wei)其騰出的(de)10兆(zhao)瓦“西電(dian)(dian)東(dong)(dong)(dong)送(song)”通道容量(liang)。


強(qiang)化頂層設(she)計,營造良好政(zheng)策氛(fen)圍。一要(yao)(yao)提高認識。能(neng)源轉(zhuan)型是黨的十(shi)九大(da)(da)加(jia)快生態(tai)文明體制(zhi)改(gai)革、建(jian)設(she)美麗中(zhong)國重大(da)(da)方(fang)略的具體要(yao)(yao)求,是履行《巴黎(li)協定(ding)》中(zhong)我國碳減排承(cheng)諾的重要(yao)(yao)途徑。數據(ju)中(zhong)心(xin)巨大(da)(da)能(neng)耗問題應(ying)引起高度關(guan)注,應(ying)提高對數據(ju)中(zhong)心(xin)與能(neng)源轉(zhuan)型關(guan)系(xi)的認識。


好的(de)(de)(de)(de)制(zhi)度設(she)計可(ke)以使(shi)數(shu)(shu)據中(zhong)心(xin)(xin)這一耗能(neng)大戶(hu)由能(neng)源轉(zhuan)型的(de)(de)(de)(de)威(wei)脅(xie)者,變為(wei)能(neng)源轉(zhuan)型的(de)(de)(de)(de)推動者。二(er)要(yao)堅持(chi)問(wen)(wen)(wen)題(ti)導(dao)向和(he)(he)目標導(dao)向,盡(jin)快建立有利于數(shu)(shu)據中(zhong)心(xin)(xin)發(fa)揮作用的(de)(de)(de)(de)電(dian)力(li)市(shi)場機制(zhi)。應擴(kuo)大可(ke)再生能(neng)源市(shi)場化交易機制(zhi)試點,將數(shu)(shu)據中(zhong)心(xin)(xin)納入其中(zhong);應深入探討數(shu)(shu)據中(zhong)心(xin)(xin)參與(yu)電(dian)力(li)市(shi)場輔助(zhu)服(fu)務、跨省區(qu)能(neng)源優化和(he)(he)現貨交易等理論問(wen)(wen)(wen)題(ti)和(he)(he)市(shi)場規則問(wen)(wen)(wen)題(ti);著手(shou)開展數(shu)(shu)據中(zhong)心(xin)(xin)有效融入電(dian)力(li)市(shi)場的(de)(de)(de)(de)示(shi)范應用工作。三要(yao)有效發(fa)揮政府(fu)作用。應將數(shu)(shu)據中(zhong)心(xin)(xin)可(ke)再生能(neng)源使(shi)用與(yu)能(neng)耗總量和(he)(he)強度“雙控(kong)”目標掛鉤;應加強分布(bu)式能(neng)源、微電(dian)網、局域電(dian)網接入大電(dian)網的(de)(de)(de)(de)專(zhuan)項(xiang)監管(guan)。

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