Ib lub cev loj hlob ntawm cov phooj ywg- kev tshuaj xyuas kev tshawb fawb yog qhov nyuaj rau qhov ntev - tuav kev xav hauv kev lag luam photovoltaic: uas ntxiv cov khaubncaws sab nraud povtseg thiab nyuaj rau lub hnub ci cell inevitably ua rau nws lub nra hnyav. Kev ntsuam xyuas lub neej tshiab (LCA) cov kev tshawb fawb qhia qhov txawv txav. Los ntawm stacking ib tug perovskite sab saum toj cell mus rau ib tug pa silicon hauv qab cell, tandem PV technology tsis tsuas yog muab ntau zog zog hloov dua siab tshiab efficiency tab sis kuj ua tau ib tug loj txo tag nrho ib puag ncig cuam tshuam tshaj ib zaug xwb - junction crystalline silicon modules - los ntawm ntau npaum li 30 feem pua.
30 feem pua Daim duab: Qhov Kev Tshawb Fawb Kawg Qhia
Cov pov thawj ncaj qha tshaj plaws los ntawm lub txaj txaj - mus rau -grave LCA txoj kev tshawb fawb luam tawm xyoo 2026, uas piv rau crystalline silicon (c-Si), standalone perovskite, thiab hybrid perovskite-silicon tandem PV systems. Cov txiaj ntsig tau txais txiaj ntsig zoo: cov kab ke hybrid tandem tau sau npe tag nrho ib puag ncig kev cuam tshuam ntawm kwv yees li 973 qhov cuam tshuam, piv rau kwv yees li 1,378 units rau c-Si- txo qis ntawm kwv yees li 29.4 feem pua. Qhov kev txhim kho no feem ntau yog los ntawm peb yam: qhov qis-kev ua haujlwm kub yuav tsum tau ua rau perovskite sab saum toj{14} cell fabrication, superior efficiency ntawm tandem architectures, thiab qis zog thiab dej noj ib chav tsev ntawm hluav taws xob generated.
Cov kev tshawb pom no ua raws li kev ua haujlwm yav tom ntej LCA yav dhau los, uas tau kwv yees tias tandem hnub ci hlwb yuav ua kom pom kev zoo dua eco-profiles piv rau ib zaug - junction silicon li yav tom ntej. Qhov laj thawj tseem ceeb yog qhov yooj yim: lub zog hloov pauv kev ua haujlwm siab dua overcompensates rau lub nra hnyav dua ib puag ncig ntawm kev tsim khoom, piv txwv li lub neej sib piv.
Tshaj Carbon: Kev nyab xeeb cuam tshuam qhov zoo ntawm Tandem PV
Qhov txiaj ntsig ntawm ib puag ncig nthuav dav dhau qhov ntsuas qhov ntsuas rau huab cua- cov cim tshwj xeeb. Ib qho kev tshawb fawb LCA parametric piv perovskite/silicon (PSK/Si) tandem modules nrog silicon heterojunction (SHJ) modules pom tias, rau cov qauv tsim nyob rau hauv Fabkis, PSK/Si tandem nthuav tawm kev hloov pauv huab cua xws li 5.5 txog 8.7 g CO₂ kilowatt modules sib npaug, qhov sib npaug ntawm qhov sib npaug 6.3-9.4 g CO₂ eq/kWh. Qhov qis kawg ntawm qhov sib tw tandem sawv cev rau qhov txo qis muaj txiaj ntsig- kwv yees li 13 feem pua - nyob rau hauv cov xwm txheej zoo.
Ntau qhov kev xav tau xav tau qhia tias muaj peev xwm decarbonization ntau dua. Ib txoj kev tshawb fawb xyoo 2025 los ntawm Cornell University tau kwv yees tias kev hloov pauv thoob ntiaj teb PV ntau lawm rau tag nrho -perovskite tandem systems tuaj yeem txo qis carbon emissions los ntawm cov txheej txheem fabrication los ntawm 16.2 feem pua los ntawm 2050. Txawm tias tsis muaj kev hloov pauv tag nrho, txoj kev tshawb fawb pom tias perovskite-silicon tuaj yeem sib piv 10.8 feem pua ntawm cov pa roj carbon monoxide tandem. rau silicon-tsuas yog scenarios. Tsis tas li ntawd, kev xa tawm tandem tuaj yeem txo cov nqi hluav taws xob txog li 21.2 feem pua, ua tiav cov nqi hluav taws xob tsawg li 3.66 xees ib kilowatt- teev.
Yog vim li cas Tandem PV muaj ib tug sib dua Environmental footprint
Ib puag ncig superiority ntawm tandem modules yuav zoo li counterintuitive, muab hais tias lawv koom nrog ntxiv cov ntaub ntawv thiab fabrication kauj ruam. Muaj ob peb yam piav txog qhov paradox.
Ua ntej, lub sijhawm tsim khoom yog qhov tseem ceeb ntawm ib puag ncig hotspot. Thoob plaws txhua qhov kev teeb tsa PV, kev tsim khoom txhawb nqa qhov loj tshaj plaws ntawm lub neej emissions thiab kev siv hluav taws xob. Rau ib leeg -hluav taws xob silicon hlwb, kev tsim cov hnub ci- qib polysilicon feedstock yuav tsum muaj kwv yees li 293 kilowatt- teev hluav taws xob ib kilogram, lub zog hnyav heev - cov txheej txheem hnyav. Kev tsim cov theem thoob plaws PV cov saw saw nyiaj rau kwv yees li 60 txog 80 feem pua ntawm tag nrho cov emissions. Txhua lub tshuab uas txo cov nqi ntawm silicon yuav tsum tau ib watt ntawm cov zis ncaj qha txiav cov emissions ntau tshaj - theem ntawm ntau lawm.
Qhov thib ob, perovskite sab saum toj hlwb ua tiav ntawm qhov kub thiab txias. Tsis zoo li silicon wafer ntau lawm, uas xav tau qhov kub siab tshaj 1,000 degree, perovskite txheej tuaj yeem muab tso rau ntawm kev daws teeb meem -raws li lossis vapor- cov txheej txheem pab ntawm qhov kub nruab nrab. Qhov no ua rau txo qis lub zog nkag rau ib lub xov tooj ntawm tes.
Thib peb, kev ua haujlwm siab dua txhais tau tias cov khoom siv tsawg dua rau tib lub zog tso tawm. Lub tandem module uas hloov 29 feem pua ntawm hnub ci mus rau hauv hluav taws xob, piv rau 22 feem pua silicon module, yuav tsum muaj kwv yees li 24 feem pua tsawg dua cheeb tsam -thiab yog li cov khoom siv tsawg dua, ntim tsawg dua, thiab qis dua kev thauj mus los - kom xa tau tib lub npe lub peev xwm. Cov khoom siv no ua rau cov nyhuv ripple muaj txiaj ntsig zoo rau txhua theem qis ntawm lub neej voj voog.
Plaub, cov tswv yim kev lag luam ncig ua kom zoo dua. LCA cov kev tshawb fawb qhia tias kev rov ua dua tshiab thiab cov khoom siv rov qab tuaj yeem txo qis tus nqi hluav taws xob rau tandem systems rau $ 0.08 ib kilowatt-teev, ua haujlwm tau zoo dua li kev siv thev naus laus zis.Thaum cov khoom siv siv zog, kev tsim hluav taws xob, kav ntev, thiab kawg - ntawm - lub neej rov qab tau raug tswj kom tsim nyog, tsis muaj peev xwm ua tau zoo. rau, tab sis zoo dua li cov pa silicon modules.
Performance Uas Tsav Sustainability
Cov ntaub ntawv ib puag ncig rau tandem PV yog sib cais los ntawm nws txoj kev ua haujlwm zoo. Raws li thaum ntxov 2026, perovskite- silicon tandem hlwb tau ua tiav cov ntaub ntawv pov thawj lub zog hloov pauv ntawm 34.85 feem pua hauv cov chaw kuaj mob, tshaj qhov theoretical Shockley-Queisser txwv ntawm kwv yees li 29.4 feem pua uas txwv ib leeg -hluav taws xob silicon hlwb. Kev lag luam- cov cell loj tsis nyob deb: Hanwha Qcells tau tshaj tawm 28.6 feem pua kev ua haujlwm rau huab hwm coj -tsim- cov hlwb npaj, thiab Trina Solar tsis ntev los no tau nthuav tawm 907 W tandem module nrog tag nrho - vaj huam sib luag efficiency ntawm 29.2 feem pua, tsim los siv ntau lawm. Lub qab nthab theoretical rau perovskite-silicon tandem architecture yog kwv yees nyob ib ncig ntawm 43 feem pua, tawm hauv chav ntau rau kev txhim kho ntxiv.
Los ntawm qhov kev xav ntawm lub zog them rov qab, kev ua haujlwm siab dua txhais ncaj qha mus rau lub sij hawm them rov qab luv zog (EPBT). Qee qhov kev kwv yees qhia tau hais tias perovskite-silicon tandem tuaj yeem ua tiav EPBT qhov tseem ceeb tsawg li 0.2 txog 0.4 xyoo, ua tau zoo heev rau ib qho -crystalline silicon qhov ntau ntawm ib txog plaub xyoos.
Kev lag luam tseem tab tom pib
Qhov zoo ntawm ib puag ncig ntawm tandem PV yog qhov cuam tshuam ntau dua li cov thev naus laus zis txav los ntawm cov chaw sim mus rau cov kab ntau lawm. GCL Optoelectronics tau ruaj ntseg Tuam Tshoj thawj coj lag luam perovskite-silicon tandem module xaj-a 1.2 MW kev yuav khoom los ntawm lub xeev- muaj hluav taws xob Huaneng, yuav tsum tau IEC- ntawv pov thawj modules nrog ntau dua 25 feem pua kev ua tau zoo thiab kev ua haujlwm 25 xyoo - Hauv Tebchaws Meskas, Tandem PV tau qhib 40 MW kev lag luam ua qauv ua qauv ua qauv hauv Fremont, California, qhia txog kev ua haujlwm sab hauv ntawm 29.7 feem pua thiab txhua xyoo lub zog degradation tsawg dua 1 feem pua hauv kev sim ua lub neej nrawm. Trina Solar cia siab tias yuav xa cov khoom lag luam loj loj ntawm nws txoj kab tandem module yuav pib hauv 2028-2029.
Lub Hwj Chim Tseem Ceeb
Txawm hais tias muaj pov thawj LCA tseem ceeb, ntau qhov kev sib tw yuav tsum tau daws ua ntej tandem modules tuaj yeem ntes cov txiaj ntsig kev lag luam. Ntev- lub sij hawm durability tseem yog thawj qhov kev txhawj xeeb: kev lag luam yuav tsum tau siv tau 25- xyoo kev ua haujlwm ruaj khov piv rau cov qauv tsim silicon. Loj - cheeb tsam kev ua haujlwm sib xws thiab kev tsim cov khoom lag luam kuj nthuav qhia cov teeb meem kev lag luam tseem ceeb raws li cov neeg tsim khoom ntsuas los ntawm cov kab tsav mus rau gigawatt- nplai ntau lawm. Tsis tas li ntawd, cov ntsiab lus txhuas hauv cov ntaub ntawv perovskite ua rau muaj kev txhawj xeeb txog kev mob toxicity uas yuav tsum tau hais los ntawm encapsulation thiab xaus - ntawm-lub neej kev tswj kev cai.
Txawm li cas los xij, qhov kev tshawb pom LCA qhia tias txawm tias muaj kev xav zoo, qhov xwm txheej ib puag ncig rau tandem PV twb muaj zog lawm. Kev soj ntsuam tsis paub tseeb uas suav nrog cov kev hloov pauv hauv lub neej thiab cov xwm txheej degradation tseem qhia PSK / Si tandem ua tau zoo tiv thaiv silicon heterojunction modules thoob plaws ntau yam tsis muaj.
Xaus
Cov ntaub ntawv pov thawj tau pom tseeb ntxiv: perovskite-silicon tandem PV tsis yog qhov ua tau zoo dua - lwm txoj rau cov pa roj silicon hnub ci. Nws kuj yog ib qho kev cuam tshuam qis dua -. Los ntawm kev txo cov khoom siv zog thiab kev siv hluav taws xob xav tau los tsim txhua kilowatt- teev hluav taws xob huv, tandem modules muab txoj hauv kev rau decarbonize tsis yog hauv kab sib chaws nkaus xwb tab sis kuj yog cov txheej txheem tsim khoom ntawm cov thev naus laus zis uas decarbonize nws. Raws li kev lag luam kev tsim khoom lag luam thiab kev ua haujlwm tau zoo nyob rau xyoo tom ntej, 30 feem pua ntawm ib puag ncig kom zoo dua pom hauv LCA cov kev tshawb fawb tam sim no tuaj yeem ua pov thawj zoo.
