一、屋頂光伏發電和地面光伏發電對比

地(di)面(mian)(mian)電(dian)(dian)站(zhan)和屋(wu)頂分布式電(dian)(dian)站(zhan)是(shi)目前(qian)光伏電(dian)(dian)站(zhan)投(tou)資的兩(liang)大類型。地(di)面(mian)(mian)電(dian)(dian)站(zhan)因擁有(you)清晰的產權(quan)而容易獲得金融支持，安裝、接入(ru)方式簡單，只與電(dian)(dian)網有(you)結算(suan)關系，這些(xie)都是(shi)其優點。但同時還要看(kan)到，地(di)面(mian)(mian)電(dian)(dian)站(zhan)存在占用(yong)大量土地(di)、補(bu)貼到位(wei)時間長等不足。此外，地(di)面(mian)(mian)電(dian)(dian)站(zhan)還會受到電(dian)(dian)改(gai)等因素的影響(xiang)，由于(yu)發(fa)電(dian)(dian)側放(fang)開競價上網，光伏地(di)面(mian)(mian)電(dian)(dian)站(zhan)競爭力(li)就(jiu)會顯得嚴重(zhong)不足。

另(ling)外還需要考慮到，屋頂分(fen)布(bu)(bu)式(shi)電(dian)站(zhan)往往會(hui)(hui)因(yin)產權不(bu)(bu)夠清晰，而不(bu)(bu)容(rong)易獲得金融支持；同時(shi)，屋頂分(fen)布(bu)(bu)式(shi)電(dian)站(zhan)的(de)安裝、接入方(fang)(fang)式(shi)相對復雜；其(qi)結(jie)算關系上存在屋頂業主、投資方(fang)(fang)和電(dian)網三方(fang)(fang)關系，業主有違(wei)約風(feng)險等。必(bi)須看到，不(bu)(bu)占(zhan)用土地(di)、電(dian)量消(xiao)納不(bu)(bu)受限制、首(shou)次補貼(tie)到位(wei)時(shi)間為一(yi)個季度等，都是(shi)屋頂分(fen)布(bu)(bu)式(shi)電(dian)站(zhan)的(de)優(you)勢。同時(shi)，由于(yu)是(shi)直供電(dian)，屋頂分(fen)布(bu)(bu)式(shi)電(dian)站(zhan)未來會(hui)(hui)成為售電(dian)公司的(de)首(shou)選。

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二、屋頂光伏發電有沒有輻射

屋頂光伏發電沒有(you)輻(fu)射，不會(hui)對(dui)人體有(you)害。光(guang)(guang)伏(fu)發(fa)(fa)電(dian)是(shi)將光(guang)(guang)能通過(guo)半導體的(de)特性直(zhi)接轉化為直(zhi)流(liu)電(dian)能的(de)，再通過(guo)逆變(bian)器將直(zhi)流(liu)電(dian)轉換成(cheng)可以(yi)被我們使用(yong)的(de)交(jiao)流(liu)電(dian)。其中沒有(you)任(ren)何化學變(bian)化以(yi)及核反(fan)應(ying)，所(suo)以(yi)光(guang)(guang)伏(fu)發(fa)(fa)電(dian)是(shi)不會(hui)有(you)輻(fu)射的(de)。光(guang)(guang)伏(fu)發(fa)(fa)電(dian)是(shi)無污(wu)染、無輻(fu)射，取(qu)之(zhi)不盡用(yong)之(zhi)不竭的(de)清潔能源。

光(guang)伏(fu)(fu)組件(jian)(jian)(jian)本身在發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)并不(bu)產(chan)生(sheng)任何電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)輻(fu)射，但是為(wei)了將光(guang)伏(fu)(fu)組件(jian)(jian)(jian)所發(fa)(fa)的(de)(de)直流電(dian)(dian)(dian)(dian)(dian)(dian)轉(zhuan)變為(wei)交流電(dian)(dian)(dian)(dian)(dian)(dian)并實現和電(dian)(dian)(dian)(dian)(dian)(dian)網的(de)(de)連接，通常需要很多的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)設備和電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)器(qi)件(jian)(jian)(jian)，這些設備在運行(xing)時(shi)會影(ying)響周圍的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)環(huan)境(jing)。 這里(li)用光(guang)伏(fu)(fu)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)(tong)和電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)環(huan)境(jing)指代存(cun)在于光(guang)伏(fu)(fu)系統(tong)(tong)周邊的(de)(de)由于光(guang)伏(fu)(fu)系統(tong)(tong)運行(xing)產(chan)生(sheng)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)現象的(de)(de)總和。 經科學測定，太(tai)陽(yang)能光(guang)伏(fu)(fu)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)(tong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)環(huan)境(jing)低(di)于各項(xiang)指標的(de)(de)限(xian)值(zhi)。在工(gong)頻(pin)段，太(tai)陽(yang)能光(guang)伏(fu)(fu)電(dian)(dian)(dian)(dian)(dian)(dian)站電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)環(huan)境(jing)甚至低(di)于正常使用的(de)(de)常用家(jia)用電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)時(shi)產(chan)生(sheng)的(de)(de)量(liang)值(zhi)；因為(wei)光(guang)伏(fu)(fu)組件(jian)(jian)(jian)是沒有輻(fu)射的(de)(de)，相反(fan)(fan)它(ta)可(ke)以(yi)反(fan)(fan)射一(yi)些太(tai)陽(yang)光(guang)里(li)面的(de)(de)有害的(de)(de)紫外線(xian)，所以(yi)光(guang)伏(fu)(fu)組件(jian)(jian)(jian)不(bu)僅不(bu)會有危(wei)害還而會反(fan)(fan)射一(yi)部分有害的(de)(de)紫外線(xian)，對人體是沒有危(wei)害的(de)(de)。