文章來源：國家電網公司(si) 發布時間：2009-07-23
當前(qian)，華中電(dian)網電(dian)力供(gong)應正受(shou)困于缺(que)煤、少水、高溫等因素，湖南(nan)、重(zhong)慶、河南(nan)等省市已(yi)經(jing)開始(shi)拉閘限電(dian)，湖南(nan)已(yi)啟動有(you)序供(gong)電(dian)方案。華中電(dian)網有(you)限公(gong)司緊急召集華中六省市電(dian)力公(gong)司進(jin)行磋(cuo)商，于7月18日與有(you)關省電(dian)力公(gong)司簽訂了支援湖南(nan)、湖北、江西(xi)等省的購售電(dian)確認書，交易電(dian)量(liang)共(gong)9.7億千瓦時(shi)。
目(mu)前(qian)，華(hua)中電(dian)網(wang)用(yong)(yong)電(dian)負(fu)荷(he)快速增長，7月上(shang)旬最大用(yong)(yong)電(dian)負(fu)荷(he)已經達到(dao)(dao)7504萬千瓦(wa)，同比增長13.94%，湖(hu)北、河南、四川、重慶等(deng)省市用(yong)(yong)電(dian)量(liang)或負(fu)荷(he)創新高(gao)。湖(hu)南電(dian)網(wang)迎峰(feng)度夏期間(jian)用(yong)(yong)電(dian)需求將(jiang)達到(dao)(dao)1300萬千瓦(wa)，預計(ji)電(dian)力缺口超(chao)過300萬千瓦(wa)時以上(shang)。從7月2日(ri)零時起，湖(hu)南電(dian)網(wang)執(zhi)行日(ri)用(yong)(yong)電(dian)量(liang)1.9億千瓦(wa)時有序(xu)用(yong)(yong)電(dian)方案，全省每日(ri)拉閘限電(dian)近2000條次，日(ri)限電(dian)量(liang)超(chao)過4000萬千瓦(wa)時，隨著氣溫升高(gao)，限電(dian)額還將(jiang)增大。
從(cong)供應側來(lai)看，由于煤價上漲快(kuai)，加上汶川大地震影響，華(hua)中(zhong)(zhong)地區(qu)送電(dian)(dian)(dian)大省(sheng)河南、四川外送能(neng)(neng)力(li)受到(dao)嚴重影響，部分購售電(dian)(dian)(dian)合(he)同(tong)被迫中(zhong)(zhong)斷，部分購售電(dian)(dian)(dian)合(he)同(tong)意向無(wu)法落實。據統計，7月(yue)上旬，華(hua)中(zhong)(zhong)電(dian)(dian)(dian)網缺煤停機容量達到(dao)535.5萬千瓦。在(zai)水(shui)(shui)(shui)電(dian)(dian)(dian)方面，今年(nian)(nian)華(hua)中(zhong)(zhong)地區(qu)來(lai)水(shui)(shui)(shui)時空分布不均情況突(tu)出，湖北丹江等大水(shui)(shui)(shui)庫水(shui)(shui)(shui)位低(di)于2007年(nian)(nian)同(tong)期水(shui)(shui)(shui)平。湖南主(zhu)力(li)水(shui)(shui)(shui)庫來(lai)水(shui)(shui)(shui)較(jiao)常年(nian)(nian)偏少，目前主(zhu)力(li)水(shui)(shui)(shui)電(dian)(dian)(dian)廠水(shui)(shui)(shui)位基本(ben)接近死水(shui)(shui)(shui)位，發電(dian)(dian)(dian)能(neng)(neng)力(li)銳減，電(dian)(dian)(dian)網快(kuai)速事故備用能(neng)(neng)力(li)降低(di)，安全運(yun)行(xing)風險加大。四川水(shui)(shui)(shui)電(dian)(dian)(dian)廠來(lai)水(shui)(shui)(shui)比(bi)多年(nian)(nian)均值少一至兩成(cheng)。
據(ju)預計，隨著氣溫升(sheng)高，華中(zhong)地(di)區電(dian)力(li)供應(ying)緊張的壓(ya)力(li)還會加(jia)大，迎(ying)峰度夏和奧運保(bao)電(dian)形勢極為嚴峻。華中(zhong)公(gong)(gong)司(si)(si)向(xiang)六省(sheng)(sheng)市(shi)電(dian)力(li)公(gong)(gong)司(si)(si)提出(chu)，將有(you)序供電(dian)作為當前(qian)的首要任務，繼續發揚團結(jie)治(zhi)網的精神，進一(yi)步(bu)完(wan)善電(dian)力(li)交(jiao)易合(he)同條款(kuan)，建(jian)立價格聯動機制，減輕各(ge)方(fang)(fang)壓(ya)力(li)，共渡(du)難關，爭(zheng)取下半年執行(xing)(xing)好(hao)各(ge)類(lei)合(he)同的年度計劃；電(dian)力(li)供應(ying)相對(dui)(dui)緊張的省(sheng)(sheng)市(shi)要進一(yi)步(bu)推(tui)動本省(sheng)(sheng)市(shi)電(dian)廠的燃料采購工(gong)作，合(he)理(li)安排(pai)電(dian)煤庫存，進一(yi)步(bu)優化運行(xing)(xing)方(fang)(fang)式，加(jia)強用(yong)電(dian)管理(li)；電(dian)力(li)供應(ying)相對(dui)(dui)緩(huan)和的省(sheng)(sheng)市(shi)要合(he)理(li)安排(pai)用(yong)煤和存煤，適當推(tui)后冬儲煤時間，合(he)理(li)調整開機方(fang)(fang)式，支援困(kun)難省(sheng)(sheng)市(shi)。目前(qian)，華中(zhong)公(gong)(gong)司(si)(si)的其他應(ying)對(dui)(dui)措施正在緊張落實。