ʻO ka mana o ka hana mana o nā solar panels

Hoʻomaka ka lā ma ka hui semiconductor PN, e hana ana i ka lua-electron hou. Ma lalo o ka hana o ke kahua uila o ka hui PN, kahe ka puka mai ka ʻāpana P a i ka ʻāpana N, a kahe ka electron mai ka ʻāpana N i ka ʻāpana P. Ke hoʻohui ʻia ke kaapuni, ua hoʻokumu ʻia ke au. ʻO ia ke ʻano o ka hana ʻana o nā cell solar effect photoelectric.

ʻO ka hana mana o ka lā ʻElua mau ʻano o ka mana o ka lā, ʻo kekahi ke ʻano hoʻololi māmā-wela-wela, ʻo kekahi ʻo ke ʻano hoʻololi uila māmā.

(1) Ke hoʻohana nei ke ʻano hoʻololi māmā-wela-wela i ka ikehu wela i hana ʻia e ka pāhawewe lā e hoʻohua i ka uila. ʻO ka maʻamau, hoʻololi ʻia ka ikehu wela i hoʻopili ʻia i ka mahu o ka mea hana e ka ʻohi lā, a laila hoʻokele ʻia ka turbine mahu e hana i ka uila. ʻO ke kaʻina hana mua ke kaʻina hoʻololi māmā-wela; ʻO ke kaʻina hana hope ka wela - ka hoʻololi uila.

(2) Hoʻohana ʻia ka hopena photoelectric e hoʻololi pololei i ka ikehu uila i ka ikehu uila. ʻO ka mea maʻamau o ka hoʻololi photoelectric ʻo ia ka cell solar. ʻO ka cell solar kahi mea e hoʻololi pololei i ka ikehu kukui o ka lā i ka ikehu uila ma muli o ka hopena photogeneration volt. He photodiode semiconductor. Ke hoʻomālamalama ka lā i ka photodiode, e hoʻohuli ke photodiode i ka ikehu kukui o ka lā i ikehu uila a hoʻohua i ke au. Ke hoʻohui ʻia nā cell he nui i ka moʻo a i ʻole i ka like, hiki ke hana ʻia kahi ʻāpana huinahā o nā pūnaewele lā me ka mana hoʻopuka nui.

I kēia manawa, crystalline silicon (me polysilicon a me monocrystalline silicon) ʻo ia nā mea photovoltaic koʻikoʻi loa, ʻoi aku ka nui o kāna mākeke ma mua o 90%, a i ka wā e hiki mai ana no ka manawa lōʻihi e lilo mau i nā mea kumu nui o nā cell solar.

No ka manawa lōʻihi, ua hoʻomalu ʻia ka ʻenehana hana o nā mea polysilicon e nā hale hana 10 o 7 mau hui ma 3 mau ʻāina, e like me ʻAmelika Hui Pū ʻIa, Iapana a me Kelemānia, e hana ana i kahi poloka ʻenehana a me ka monopoly mākeke.

ʻO ke koi ʻana o Polysilicon mai nā semiconductors a me nā cell solar. E like me nā koi hoʻomaʻemaʻe like ʻole, māhele ʻia i ka pae uila a me ka pae lā. I waena o lākou, ʻoi aku ka polysilicon electronic-grade ma kahi o 55%, ʻo ka polysilicon pae lā he 45%.

Me ka wikiwiki o ka hoʻomohala ʻana o ka ʻoihana PHOTOVOLTAIC, ʻoi aku ka wikiwiki o ka noi no ka polysilicon i nā cell solar ma mua o ka hoʻomohala ʻana o ka polysilicon semiconductor, a ua manaʻo ʻia e ʻoi aku ka nui o ke koi no ka polysilicon solar ma mua o ka polysilicon electronic-grade e 2008.

I ka makahiki 1994, ʻo 69MW wale nō ka nui o ka hana ʻana o nā cell solar ma ka honua, akā i ka makahiki 2004 ua kokoke ia i 1200MW, he 17 mau piʻi i loko o 10 mau makahiki wale nō. Manaʻo ka poʻe loea e ʻoi aku ka ʻoihana photovoltaic solar ma mua o ka mana nuklea ma ke ʻano he kumu nui o ka ikehu kumu i ka hapa mua o ke kenekulia 21.