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工(gong)商(shang)業電站項目實景 |
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什么是“自發自用,余電上網”?
自發自用(yong)余電(dian)(dian)(dian)(dian)(dian)上(shang)(shang)網(wang)(wang)(wang)是(shi)指分布式(shi)(shi)光(guang)伏(fu)發電(dian)(dian)(dian)(dian)(dian)系(xi)統所發電(dian)(dian)(dian)(dian)(dian)力主要由(you)電(dian)(dian)(dian)(dian)(dian)力用(yong)戶(hu)自己使用(yong),多余電(dian)(dian)(dian)(dian)(dian)量(liang)接入電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang),它是(shi)分布式(shi)(shi)光(guang)伏(fu)發電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)一(yi)(yi)種(zhong)商業模式(shi)(shi),對于這種(zhong)運行模式(shi)(shi)光(guang)伏(fu)并網(wang)(wang)(wang)點設(she)在用(yong)戶(hu)電(dian)(dian)(dian)(dian)(dian)表(biao)的(de)(de)(de)負載側(ce),需要增(zeng)加一(yi)(yi)塊光(guang)伏(fu)反送電(dian)(dian)(dian)(dian)(dian)量(liang)的(de)(de)(de)計(ji)量(liang)電(dian)(dian)(dian)(dian)(dian)表(biao)或者將電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)用(yong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)表(biao)設(she)置成(cheng)雙向計(ji)量(liang),用(yong)戶(hu)自己直(zhi)接用(yong)掉的(de)(de)(de)光(guang)伏(fu)電(dian)(dian)(dian)(dian)(dian)量(liang),以節省電(dian)(dian)(dian)(dian)(dian)費的(de)(de)(de)方式(shi)(shi)直(zhi)接享受電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)銷售電(dian)(dian)(dian)(dian)(dian)價,反送電(dian)(dian)(dian)(dian)(dian)量(liang)單獨計(ji)量(liang)并以規定的(de)(de)(de)上(shang)(shang)網(wang)(wang)(wang)電(dian)(dian)(dian)(dian)(dian)價進行結算。
全額上網是指分布式光伏發電系統所發電力全部接入電網,它是分布式光伏發電的一種商業模式,費用與電力公司結算。
什么是“全額上網”?
工(gong)商業分布式光(guang)(guang)伏電站(zhan)主(zhu)要利用三種屋(wu)(wu)(wu)(wu)頂:斜面瓦片屋(wu)(wu)(wu)(wu)頂、混凝土平屋(wu)(wu)(wu)(wu)頂及彩(cai)鋼瓦結構。戶用分布式光(guang)(guang)伏電站(zhan)可以再斜屋(wu)(wu)(wu)(wu)頂、平屋(wu)(wu)(wu)(wu)頂、陽光(guang)(guang)房(fang)等各類屋(wu)(wu)(wu)(wu)頂安(an)裝。
工業(ye)領域廠房:特別是在(zai)用(yong)電(dian)(dian)量(liang)比較大(da)、網購電(dian)(dian)費比較貴的(de)(de)工廠,通常廠房屋(wu)頂(ding)面(mian)積很(hen)大(da),屋(wu)頂(ding)開(kai)闊平(ping)整,適合安裝(zhuang)光伏陣(zhen)列并(bing)且由于用(yong)電(dian)(dian)負(fu)(fu)荷較大(da),分布式光伏并(bing)網系統可以(yi)做以(yi)就地消(xiao)納,抵消(xiao)一(yi)部分網購電(dian)(dian)量(liang),從而節省用(yong)戶的(de)(de)電(dian)(dian)費。商(shang)業(ye)建(jian)筑(zhu):與(yu)工業(ye)園區的(de)(de)作(zuo)用(yong)效(xiao)果類似(si),不同(tong)之處在(zai)于商(shang)業(ye)建(jian)筑(zhu)多(duo)為水(shui)泥(ni)屋(wu)頂(ding),更有利與(yu)安裝(zhuang)光伏陣(zhen)列,但是往(wang)往(wang)對(dui)建(jian)筑(zhu)美觀性(xing)有要求,按照商(shang)廈、寫字樓、酒店(dian)、會議中(zhong)心、度假村等服務業(ye)的(de)(de)特點,用(yong)戶負(fu)(fu)荷特性(xing)一(yi)般表(biao)現(xian)為白天較高,夜間(jian)較低,能夠(gou)較好的(de)(de)匹配光伏發電(dian)(dian)特性(xing)。
什么樣的(de)屋(wu)頂可以安裝分布式(shi)光伏(fu)電站(zhan)?
哪些地點適合安(an)裝分布式光伏發電系統?
如何(he)選(xuan)擇分布式光伏(fu)并網系(xi)統的并網電壓?
分布式光伏系統并網電壓主要由系統裝機容量所決定,具體并網電壓需根據電網公司的接入系統批復決定,一般選用AC380V 或10kV接入電網。
光伏發電系統裝機容量的大小,取決于企業用電量、屋頂的樣式和屋頂的面積,并結合電網公司的批復意見,確定最佳安裝容量。
如何(he)決定光伏發(fa)電系統(tong)的裝機(ji)容量?
在(zai)分布(bu)式發電系統安裝(zhuang)完(wan)成(cheng)后(hou),電網公司會(hui)進行并網的(de)檢驗(yan)驗(yan)收,驗(yan)收合格后(hou)會(hui)安裝(zhuang)兩(liang)塊(kuai)(kuai)(或雙(shuang)向電表(biao)),兩(liang)塊(kuai)(kuai)電表(biao)會(hui)分別對光伏系統的(de)發電和市電的(de)用電量進行獨立計量。
分布式光伏發電系統并網后,怎么區分使用的是電力公司電量還是光伏電量
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