Whakaarohia tētahi ao e hono pai ana ngā panera rā ki ngā tuanui, e hopu ana i ngā hihi o te rā me te whai huatanga kāore i kitea i mua. Ehara tēnei i te moemoeā tawhiti engari he mea e tupu haere ana nā ngā pūtau rā o BC. Ko te whakarāpopototanga mō ngā pūtau rā Back Contact, kei te hurihia e te hangarau BC te umanga rā me tōna hoahoa auaha me te mahi pai rawa atu. Kia tūhuratia ngā mea whakamiharo o ngā pūtau rā o BC me tō rātou heke mai whai hua.
Te Hoahoa Atamai o ngā Pūtau Rā o BC
Ko ngā pūtau rā BC, arā, ngā pūtau rā Back Contact, te tauira o te auahatanga hoahoa i roto i te ao pūngao rā. Whakaarohia tēnei: ko ngā hononga whakarewa katoa me ngā pūwāhi honohono e whakakīkī ana i te mata o mua o te pūtau rā ka nekehia ki muri. Mā tēnei hoahoa hou whakamiharo ka whakakorea ngā rārangi whatunga kino e aukati ana i te hihi o te rā, ka taea ai e te pūtau te mimiti i ngā māramatanga katoa. Ko te mutunga? He pūtau rā maeneene, whai hua e hopu ana i te hihi o te rā, ā, ka huri hei pūngao whai hua ake.
Ehara te hangarau BC i te mea he putanga motuhake, engari he taahiraa whanaketanga e hangai ana ki ngā hangarau o nāianei. Mā te tango i ngā āhuatanga pai rawa atu mai i ōna mua, me te whakauru i aua āhuatanga ki roto i tētahi āhua hou, kua arotauhia, ka tutuki i ngā pūtau rā BC ngā whakapainga whai hua whakamiharo.
Te Whai Hua e Kanapa Ana
Ko te whai huatanga te kaupapa matua o te hangarau pūngao rā, ā, kei te whakatakotohia e ngā pūtau pūngao rā o BC he paearu hou. Ka taea e ngā panera Perc tuku iho (Passivated Emitter and Rear Cell) te huri i te 20-22% o te hihi o te rā ki te hiko, ko ngā panera Topcon (Tunnel Oxide Passivated Contact) e pana ana i taua tatauranga ki te 23%. Heoi, ka haria e ngā pūtau pūngao rā o BC ki te taumata e whai ake nei me te whai huatanga whakaputa tata ki te 24.5% me te pikinga o ngā whai huatanga whakamātautau i waenga i te 27-29%. Ko tēnei pikinga 2-3% ki runga i ngā pūtau pūngao rā o N-TOPCon he huringa kēmu, e tuku ana i tētahi peke nui i roto i te hangarau pūngao rā.
He Huinga Hangarau
Ko te mea e tino ātaahua ai te hangarau BC ko tōna whānui o te whakamahinga. Ka taea e ngā pūtau rā o BC te whakakotahi me ētahi atu hangarau matua pērā i a Perc, TOPCon, me HJT (Heterojunction Technology) hei hanga pūtau ranu. Whakaarohia ngā mea ka taea: HPBC (Heterojunction with Back Contact), TBC (TOPCon with Back Contact), me HBC (Heterojunction Back Contact). He rite ēnei ranu ki ngā whetu rongonui o te ao rā, e whakakotahi ana i ngā kaha o ngā hangarau maha hei whakatairanga i te whai huatanga ki ngā taumata hou.
Ngā Āhuatanga Ahurei o ngā Pūtau Rā o BC
1. Te Rā Kāore e Āraihia
Mā te nekehia o ngā rārangi whatunga whakarewa ki muri, ka tukuna e ngā pūtau rā BC he mata ma, kāore i pakaru, e hopu ana i te nui o te rā e kapohia ana, ā, ka hurihia hei pūngao me te nui ake o te whai huatanga.
Te Whai Huatanga o te Tahuritanga Whakarei Ake
Nā ngā whakarerekētanga hoahoa ka piki ake ngā reiti tahuritanga, ka noho ko ngā pūtau rā BC hei pūngao kaha i roto i te ao o te pūngao rā.
2. Te Āhua Ataahua
Nā te korenga o ngā rārangi whatunga e anga whakamua ana, he ātaahua, he ōrite te āhua o ngā panera rā o BC, he mea ātaahua hoki mō ngā whakaurunga kāinga me ngā whakaurunga arumoni.
Whakaurunga Ranu
Mā te kaha ki te whakakotahi i te hangarau BC me ētahi atu hangarau pūngao rā matua ka hua ake he pūtau ranu e whakanui ana i te whai huatanga me te mahi.
3. Te Aroaro o te Mākete me ngā Tūmanako Kanapa
I tēnei wā, he rite ngā pūtau hiko o BC ki ngā taonga huna i roto i te mākete hiko o te rā, he 0.2% noa iho te hea e puritia ana e rātou, ki te whakaritea ki te 70% o te hea matua o TOPCon. Engari e matapaetia ana e ngā matakite ahumahi pēnei i a LONGi Green Energy tētahi panonitanga nui. E matapaetia ana e LONGi i roto i ngā tau 5-6 e whai ake nei, ka ara ake ngā pūtau hiko o BC ki te rongonui, ka taea te tango i a Topcon hei hangarau hiko matua.
4. He kanapa te heke mai me ngā pūtau hiko o BC
Ehara i te mea he whakapainga ā-pūtau noa iho ngā pūtau hiko pūngao BC; he peke whakamua māia anō hoki. Mā te whakaiti i ngā ngaronga atarangi me te whakanui ake i te pai o te huringa, ka oati te hangarau BC ki te hanga anō i te whenua o te pūngao pūngao pūngao. Ahakoa he iti noa te mākete e nohoia ana e ngā pūtau hiko pūngao BC i tēnei wā, ko te pai o te pai me te ataahua o te āhua ka waiho hei whakataetae kaha ki ngā hangarau kua whakapumautia pēnei i a Perc me Topcon.
Ko te pūmanawa tūturu o ngā pūtau BC kei roto i tō rātou āheinga ki te urutau. Mā te whakauru atu ki ētahi atu hangarau, ka taea e ngā pūtau BC te whanake hei whare hiko ranu, ka pana i ngā rohe o ngā mea ka taea e ngā pūtau rā te whakatutuki. I a te ao e neke ana ki te pūngao hou, kei te rite ngā pūtau rā BC ki te ārahi i te whakaekenga, ka huri i ngā tuanui hei kaihanga hiko maeneene, whai hua.
Nō reira, ā tērā wā ka titiro ake koe ki te rā, whakaarohia te makutu ngaro o ngā pūtau rā BC e mahi uaua ana ki te whakamahi i tōna mana. Kei roto i ia hihi o te rā te kupu whakaari mō tētahi heke mai kanapa ake, matomato ake, ā, kei konei te hangarau BC hei whakatutuki i taua kupu whakaari.
