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河北省涿州市東興北街58號
工商業(ye)電站項目實景 |
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什么是“自發自用，余電上網”？
自(zi)(zi)(zi)發(fa)自(zi)(zi)(zi)用(yong)(yong)(yong)余電(dian)(dian)(dian)(dian)(dian)(dian)(dian)上網(wang)是(shi)指分布式(shi)光(guang)(guang)(guang)伏(fu)(fu)發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)系統所發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力主要由電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力用(yong)(yong)(yong)戶自(zi)(zi)(zi)己(ji)使用(yong)(yong)(yong)，多余電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)接(jie)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網(wang)，它(ta)是(shi)分布式(shi)光(guang)(guang)(guang)伏(fu)(fu)發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)一(yi)種商業模式(shi)，對于(yu)這種運行(xing)模式(shi)光(guang)(guang)(guang)伏(fu)(fu)并(bing)網(wang)點設(she)在(zai)用(yong)(yong)(yong)戶電(dian)(dian)(dian)(dian)(dian)(dian)(dian)表的(de)(de)(de)負(fu)載側(ce)，需要增加一(yi)塊(kuai)光(guang)(guang)(guang)伏(fu)(fu)反(fan)(fan)送(song)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)的(de)(de)(de)計量(liang)(liang)(liang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)表或者將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網(wang)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)表設(she)置成雙向(xiang)計量(liang)(liang)(liang)，用(yong)(yong)(yong)戶自(zi)(zi)(zi)己(ji)直(zhi)接(jie)用(yong)(yong)(yong)掉(diao)的(de)(de)(de)光(guang)(guang)(guang)伏(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)，以(yi)(yi)節省電(dian)(dian)(dian)(dian)(dian)(dian)(dian)費的(de)(de)(de)方式(shi)直(zhi)接(jie)享受(shou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)網(wang)的(de)(de)(de)銷售電(dian)(dian)(dian)(dian)(dian)(dian)(dian)價(jia)，反(fan)(fan)送(song)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)(liang)(liang)單(dan)獨(du)計量(liang)(liang)(liang)并(bing)以(yi)(yi)規(gui)定的(de)(de)(de)上網(wang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)價(jia)進行(xing)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(ye)分(fen)布式(shi)光伏(fu)電(dian)站主要利用三種(zhong)屋(wu)頂：斜(xie)面瓦(wa)片(pian)屋(wu)頂、混(hun)凝(ning)土平屋(wu)頂及彩鋼瓦(wa)結構。戶(hu)用分(fen)布式(shi)光伏(fu)電(dian)站可以再(zai)斜(xie)屋(wu)頂、平屋(wu)頂、陽光房等各類屋(wu)頂安裝。
工業(ye)(ye)(ye)領域廠(chang)(chang)房：特(te)(te)別是(shi)在(zai)用(yong)電(dian)量比較大(da)、網(wang)購(gou)電(dian)費比較貴的(de)工廠(chang)(chang)，通常廠(chang)(chang)房屋頂(ding)(ding)面積很大(da)，屋頂(ding)(ding)開闊(kuo)平整，適合安(an)裝光(guang)伏(fu)(fu)陣列并且由(you)于用(yong)電(dian)負荷較大(da)，分布式光(guang)伏(fu)(fu)并網(wang)系統可以做以就地消(xiao)納，抵消(xiao)一(yi)部分網(wang)購(gou)電(dian)量，從而節省用(yong)戶的(de)電(dian)費。商(shang)業(ye)(ye)(ye)建(jian)(jian)筑：與工業(ye)(ye)(ye)園區的(de)作用(yong)效果(guo)類似(si)，不同之處在(zai)于商(shang)業(ye)(ye)(ye)建(jian)(jian)筑多為水泥屋頂(ding)(ding)，更有(you)利(li)與安(an)裝光(guang)伏(fu)(fu)陣列，但是(shi)往往對建(jian)(jian)筑美觀性有(you)要求(qiu)，按照商(shang)廈、寫(xie)字樓、酒店、會議中心(xin)、度(du)假村等服務業(ye)(ye)(ye)的(de)特(te)(te)點，用(yong)戶負荷特(te)(te)性一(yi)般(ban)表現為白天較高(gao)，夜間較低，能夠較好(hao)的(de)匹配光(guang)伏(fu)(fu)發(fa)電(dian)特(te)(te)性。
什么樣的屋頂可以(yi)安裝分(fen)布式(shi)光伏電站？
哪些地點適合安裝分布(bu)式光伏(fu)發電(dian)系統？
如何選擇分布式光伏并網系統的并網電壓？
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)決定光伏發電(dian)系統的裝機容量？
在分布(bu)式發電(dian)(dian)系統安裝(zhuang)完成(cheng)后，電(dian)(dian)網公司會進行并網的檢驗(yan)驗(yan)收，驗(yan)收合格后會安裝(zhuang)兩(liang)塊(kuai)(kuai)（或雙向電(dian)(dian)表(biao)），兩(liang)塊(kuai)(kuai)電(dian)(dian)表(biao)會分別對光伏系統的發電(dian)(dian)和市電(dian)(dian)的用電(dian)(dian)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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河北省涿州市東興北街58號
Haocheng_001@163.com
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