光(guang)伏(fu)發(fa)電(dian)(dian)是利(li)用(yong)半(ban)導(dao)體界面(mian)的(de)(de)光(guang)生(sheng)伏(fu)應(ying)而將(jiang)(jiang)光(guang)能(neng)直(zhi)接(jie)轉變為電(dian)(dian)能(neng)的(de)(de)一種技術。主要由太陽(yang)(yang)電(dian)(dian)池(chi)板（組(zu)件(jian)）、控制(zhi)器(qi)(qi)(qi)和(he)逆(ni)變器(qi)(qi)(qi)三大部分組(zu)成，主要部件(jian)由電(dian)(dian)子(zi)元器(qi)(qi)(qi)件(jian)構成。想要安裝家庭光(guang)伏(fu)發(fa)電(dian)(dian)的(de)(de)屋頂，要有自己(ji)的(de)(de)產(chan)權，比(bi)如(ru)老家農村的(de)(de)屋頂或者(zhe)自己(ji)的(de)(de)別墅，都可以。如(ru)果房(fang)子(zi)是租來的(de)(de)，需要和(he)房(fang)東簽訂建(jian)設光(guang)伏(fu)系統的(de)(de)協議。光(guang)伏(fu)發(fa)電(dian)(dian)系統是根據光(guang)產(chan)生(sheng)伏(fu)打效應(ying)原理將(jiang)(jiang)太陽(yang)(yang)能(neng)轉換為電(dian)(dian)能(neng)，無輻射，逆(ni)變器(qi)(qi)(qi)、配(pei)電(dian)(dian)柜等電(dian)(dian)子(zi)器(qi)(qi)(qi)件(jian)都通過 EMC（電(dian)(dian)磁兼容性）測試，所以對人體沒有危害。

帶(dai)有(you)蓄電(dian)(dian)(dian)池的(de)并網發(fa)(fa)(fa)電(dian)(dian)(dian)系統具有(you)可(ke)調(diao)度性，可(ke)以(yi)根(gen)據需要并入或退出電(dian)(dian)(dian)網，還具有(you)備(bei)用(yong)電(dian)(dian)(dian)源(yuan)的(de)功能，當(dang)電(dian)(dian)(dian)網因故(gu)停(ting)電(dian)(dian)(dian)時可(ke)緊急(ji)供電(dian)(dian)(dian)。光(guang)(guang)電(dian)(dian)(dian)效(xiao)應就是(shi)(shi)光(guang)(guang)照使不(bu)均勻半導(dao)體或半導(dao)體與金屬結合的(de)不(bu)同部位之(zhi)間產生電(dian)(dian)(dian)位差的(de)現象(xiang)。它首先是(shi)(shi)由光(guang)(guang)子(光(guang)(guang)波)轉(zhuan)化為電(dian)(dian)(dian)子、光(guang)(guang)能量轉(zhuan)化為電(dian)(dian)(dian)能量的(de)過程(cheng)；其(qi)次，是(shi)(shi)形成(cheng)電(dian)(dian)(dian)壓(ya)過程(cheng)。與風(feng)力(li)發(fa)(fa)(fa)電(dian)(dian)(dian)、生物(wu)質發(fa)(fa)(fa)電(dian)(dian)(dian)、核能發(fa)(fa)(fa)電(dian)(dian)(dian)等新(xin)型發(fa)(fa)(fa)電(dian)(dian)(dian)技(ji)(ji)術(shu)相比(bi)，太(tai)陽能資源(yuan)分布廣泛、用(yong)之(zhi)不(bu)竭、用(yong)之(zhi)不(bu)竭，因此得(de)(de)到(dao)了廣泛的(de)應用(yong)。如今，光(guang)(guang)伏(fu)(fu)發(fa)(fa)(fa)電(dian)(dian)(dian)技(ji)(ji)術(shu)正變得(de)(de)越(yue)來越(yue)成(cheng)熟，光(guang)(guang)伏(fu)(fu)發(fa)(fa)(fa)電(dian)(dian)(dian)廠家哪家好，到(dao)了航天設備(bei)，到(dao)了家用(yong)電(dian)(dian)(dian)器，各(ge)種'光(guang)(guang)伏(fu)(fu)+'的(de)新(xin)形式的(de)電(dian)(dian)(dian)力(li)也隨處可(ke)見(jian)。

太(tai)陽(yang)能(neng)發(fa)(fa)電(dian)(dian)系(xi)(xi)統(tong)(tong)是(shi)利(li)用(yong)太(tai)陽(yang)能(neng)電(dian)(dian)池(chi)(chi)直接將(jiang)太(tai)陽(yang)能(neng)轉換成(cheng)電(dian)(dian)能(neng)的(de)(de)發(fa)(fa)電(dian)(dian)系(xi)(xi)統(tong)(tong)。家(jia)用(yong)太(tai)陽(yang)能(neng)發(fa)(fa)電(dian)(dian)系(xi)(xi)統(tong)(tong)由太(tai)陽(yang)能(neng)電(dian)(dian)池(chi)(chi)組、太(tai)陽(yang)能(neng)控(kong)制器、蓄(xu)(xu)電(dian)(dian)池(chi)(chi)（組）組成(cheng)。帶(dai)有蓄(xu)(xu)電(dian)(dian)池(chi)(chi)的(de)(de)光(guang)伏(fu)(fu)并(bing)網(wang)發(fa)(fa)電(dian)(dian)系(xi)(xi)統(tong)(tong)常常安(an)裝(zhuang)在居民建筑；不帶(dai)蓄(xu)(xu)電(dian)(dian)池(chi)(chi)的(de)(de)并(bing)網(wang)發(fa)(fa)電(dian)(dian)系(xi)(xi)統(tong)(tong)不具備可調(diao)度性和備用(yong)電(dian)(dian)源的(de)(de)功(gong)能(neng)，一般(ban)安(an)裝(zhuang)在較大型的(de)(de)系(xi)(xi)統(tong)(tong)上。想要(yao)安(an)裝(zhuang)家(jia)庭光(guang)伏(fu)(fu)發(fa)(fa)電(dian)(dian)的(de)(de)屋頂(ding)，要(yao)有自(zi)己(ji)的(de)(de)產權，比如(ru)老家(jia)農村的(de)(de)屋頂(ding)或者自(zi)己(ji)的(de)(de)別(bie)墅(shu)，都可以。如(ru)果房(fang)子是(shi)租來的(de)(de)，需要(yao)和房(fang)東簽訂(ding)建設(she)光(guang)伏(fu)(fu)系(xi)(xi)統(tong)(tong)的(de)(de)協議。