I tēnei ao o nāianei, i te mea ka piki haere te kino o ngā take taiao me ngā raruraru pūngao, kua noho te whanaketanga me te whakamahinga o ngā pūtake pūngao whakahou hei arotahi ā-ao. Ko te pūngao hau me te pūngao rā, hei momo pūngao whakahou e rua, e kiia whānuitia ana he mea nui ki te whakawhiti pūngao ā-muri nā te mea he ma, he kore e mimiti, he pai hoki mō te taiao. Heoi, ko te whakatinanatanga o tētahi hangarau pūngao e anga atu ana ki ngā wero e rua o te whai huatanga me te utu, koinei tonu te wāhi e whai wāhi mai ai ngā whakawhiti wera pereti.

Ko te pūngao hau, e huri ana i te mana hau hei pūngao hiko mā te whakamahi i ngā tāhū hau, he maha ngā painga pēnei i te mea ka taea te whakahou, te ma, me te iti o ngā utu whakahaere. Ka whakaratohia te hiko me te kore e pau ngā rauemi wai, he mea tino pai mō ngā rohe whai rawa o ngā rauemi hau. Heoi, ko te wā poto me te whakawhirinaki ki te wāhi o te pūngao hau e whakawhāiti ana i tōna whakamahinga whānui. I ētahi wā, ka taea te whakakotahi i te pūngao hau mengā whakawhiti wera pereti, inā koa i roto i ngā pūnaha papu wera hau e whakamahia ana mō te whakamahana me te whakamatao i ngā whare. Ka whakamahia e ēnei pūnaha te hiko hau hei taraiwa i ngā papu wera, hei whakawhiti wera pai mā roto i ngā whakawhiti wera pereti, ā, ka whakarei ake i te whai huatanga o te whakamahinga pūngao me te whakaiti i te hiahia mō ngā pūtake pūngao tuku iho.

Ko te pūngao rā, e puta mai ana i te hurihanga tika o te rā ki te hiko, ki te pūngao wera rānei, he tikanga tuku pūngao e kore e pau. Ko te whakaputa hiko photovoltaic me ngā pūnaha whakamahana wai wera rā e rua ngā tikanga whakamahinga noa. Ko ngā painga o te pūngao rā ko tōna urunga whānui me te iti o te pānga ki te taiao. Heoi, ka pāngia te putanga o te pūngao rā e te huarere me ngā huringa o te ao me te pō, e whakaatu ana i te wā poto. I roto i ngā pūnaha wai wera rā, ko ngā whakawhiti wera pereti, me ō rātou kaha whakawhiti wera whai hua, ka whakahaere i te whakawhiti wera i waenga i ngā kaikohi rā me ngā pūnaha rokiroki, ka whakarei ake i te whai huatanga wera o te pūnaha, ā, ka waiho hei otinga wai wera taiao e whakamahia whānuitia ana mō ngā whare noho me ngā whare arumoni.

Ko te whakakotahi i ngā kaha o te hau me te pūngao o te rā, me te wikitoria i ō rāua herenga, me whai pūnaha whakahaere pūngao atamai me te whai hua, he mahi nui tā ngā whakawhiti wera pereti. Mā te arotau i te whakawhiti wera, ehara i te mea ka whakapai ake i te mahi a ngā pūnaha pūngao whakahou engari ka āwhina hoki ki te whakatika i te take o te wā poto o te pūngao, ka pai ake te pumau me te pono o te tuku pūngao.

I roto i ngā mahi whaihua, nā te mea he nui te pai o te whakawhiti wera, he hanganga kiato, he iti ake hoki ngā hiahia tiaki, he nui te whakamahinga o ngā whakawhiti wera pereti i roto i ngā pūnaha e honoa ana ki ngā pūtake pūngao hou. Hei tauira, i roto i ngā pūnaha papu wera pūtake whenua, ahakoa ko te pūtake matua o te pūngao ko te pāmahana pumau i raro i te whenua, mā te whakakotahi i te hiko e whakaratohia ana e te pūngao rā, te hau rānei ka pai ake te taiao me te whai hua ohanga o te pūnaha.Ngā whakawhiti wera peretii roto i ēnei pūnaha ka taea te whakawhiti tika i te wera mai i te whenua ki roto i ngā whare, i te ritenga ke rānei.

Hei whakarāpopototanga, i te haere tonu o ngā whanaketanga hangarau me te tipu haere o te hiahia mō te pūngao pumau, ko te whakakotahitanga o te pūngao hau me te pūngao rā me ngā whakawhiti wera pereti he ara whai hua hei whakarei ake i te whai huatanga o te pūngao me te whakaiti i te pānga ki te taiao. Mā te hoahoa auaha me te whakaurunga hangarau, ka taea te whakamahi katoa i ngā kaha o ia hangarau, ka pana i te umanga pūngao ki tētahi huarahi ma me te whai hua ake.