Pab neeg tshawb fawb thoob ntiaj teb tau soj ntsuam cov txiaj ntsig ntawm kev xa tawmagrivoltaic system hauv Kenya thiab Tanzania.
"Txawm hais tias muaj peev xwm loj heev rau PV hauv East Africa, nrog rau kev xav tau kev ruaj ntseg khoom noj ceev ceev, lub peev xwm rauagrivoltaic systemhauv cheeb tsam tsis tau tshawb nrhiav. Tsis tas li ntawd xwb, tab sis qee qhov ntawm peb qhov kev tshawb pom txawv ntawm lwm cov kev tshawb fawb tau ua nyob rau lwm qhov, xws li Europe, feem ntau yog vim qhov sib txawv ntawm huab cua," tus kws tshawb fawb tus kws sau ntawv Richard Randle-Boggis tau hais. "Peb xav tsis thoob thaum pom pob kws ua tau zoo npaum li cas , tsis yog vim peb tau cia siab tias yuav txo qis cov txiaj ntsig raws li qhov ntxoov ntxoo ntawm lub hnub ci vaj huam sib luag, tab sis vim nws yog cov qoob loo tseem ceeb rau thaj av. "
"Peb kuj pom tau tias ntau cov qoob loo muaj sia nyob hauv qab cov vaj huam sib luag thaum lub sijhawm kub, muaj peev xwm qhia tau tiasagrivoltaic systemtuaj yeem tiv thaiv cov qoob loo los ntawm cov xwm txheej nyuaj rau yav tom ntej, "Randle-Boggis ntxiv. Pab pawg tau cia siab tias yuav txuag tau ntawm kev siv dej, tab sis pom nws txhais ua "ntau cov qoob loo ib poob" nrog qee cov qoob loo uas tau txais txiaj ntsig ntau dua thaum siv. tsawg irrigation "yog ib qho kev tshawb nrhiav tiag tiag."
Cov ntawv tshawb fawb "Kev sau lub hnub ob zaug: Zog, khoom noj thiab dej txiaj ntsig los ntawm kev ua liaj ua teb hauv East Africa," muaj nyob rau hauvRenewable Sustainable Energy Reviews,hais tias kev tshawb fawb txog cov txiaj ntsig ntawm agrivoltaics ntawm cov khoom noj-zog-dej nexus tam sim no tsis muaj nyob hauv sub-Saharan Africa.
Cov ntaub ntawv tshawb fawb nthuav tawm cov ntaub ntawv ntawm kev tsim hluav taws xob, kev ua qoob loo, kev siv dej thiab ib puag ncig tsis tau sau los ntawm ob lub tshuab: ib qho 36.6 kW off-grid array nyob hauv Morogoro, sab hnub tuaj Tanzania, ntawm lub tsev ntawm lub koom haum ua liaj ua teb Sustainable Agriculture Tanzania (SAT); thiab ib qho 62.1 kW kab sib chaws-tied array nyob hauv Isinya, yav qab teb Kenya, ntawm lub hauv paus ntawm kev ua liaj ua teb ua lag luam Latia Agribusiness Solutions (LAS).
Ob lub arrays tau tsa 3 m saum av thiab muaj 50% vaj huam sib luag ntom. Lawv txhua tus muaj 345 W hnub ci modules txuas nrog peb pawg, qaij 10 degrees sab qaum teb, uas daim ntawv hais tias raug xaiv kom tso cai rau cov dej ntws txaus thiab txo cov vaj huam sib luag. Cov dej nag sau qoob loo nrog guttering ntawm cov npoo qis ntawm lub hnub ci vaj huam sib luag tau teeb tsa rau cov dej nag thiab vaj huam sib luag ntxuav dej rau hauv cov tso tsheb hlau luam, uas ntxiv cov dej hauv nruab nrab uas twb muaj lawm.
Nyob nruab nrab ntawm Lub Rau Hli 2022 thiab Tsib Hlis 2023, Tanzanian system tsim hluav taws xob 12.55 MWh, uas cov kws tshawb fawb kwv yees yog sib npaug rau txuag $ 5,310 ib xyoos tiv thaiv hluav taws xob los ntawm Tanzanian lub teb chaws daim phiaj. Hauv Kenya, lub kaw lus tsim tawm 30.13 MWh, sib npaug rau 56% ntawm cov hluav taws xob siv los ntawm LAS txhua xyoo. Cov kws tshawb fawb hais tias qhov no yog kev txuag ntawm $ 5,725 tiv thaiv tus nqi ntawm daim phiaj tab sis ntxiv tias yog tias siv tag nrho, lub kaw lus tuaj yeem tsim kev txuag nyiaj ntau dua $ 18,000.
Cov kws tshawb fawb tau tshuaj xyuas yim hom qoob loo loj hlob ntawm Tanzanian qhov chaw thiab plaub hom qoob loo loj hlob hauv Kenya. Qee cov qoob loo, xws li pobkws, Swiss chard thiab taum, vam meej nyob rau hauv agrivoltaics, tab sis cov ntawv tshawb fawb hais tias txawm tias cov uas tau txais qis dua tseem ua rau muaj kev lag luam rov qab los rau thaj av.
Cov qoob loo survivability thaum lub sij hawm sov so zoo nyob rau hauv agrivoltaic system. Vaj huam sib luag shading kuj tau ua rau muaj txiaj ntsig ntau dua ntawm qee cov qoob loo thiab pab txo qis kev xav tau dej, thaum cov dej nag los ntawm vaj huam sib luag ntws los txo cov kev xav tau ntawm cov dej. Qhov ntxoov ntxoo kuj tau pab txo cov dej poob los ntawm evaporation.
"Los ntawm shading cov qoob loo nrog lub hnub ci vaj huam sib luag, peb tsim microclimate uas pab qee cov qoob loo tsim tau ntau dua, tab sis lawv kuj tseem muaj peev xwm ua kom muaj sia nyob ntawm cov cua sov thiab qhov ntxoov ntxoo pab txuag dej, uas yog ib qho tseem ceeb hauv thaj av uas muaj kev hem thawj los ntawm kev hloov pauv huab cua," said. Xib fwb Sue Hartley, tus kws sau ntawv laus ntawm txoj kev kawm.
Hauv nws qhov kev txiav txim siab, daim ntawv tshawb fawb hais tias agrivoltaics, txawm tias daim phiaj sib khi lossis tawm ntawm kab sib chaws, tuaj yeem hais txog ntau lub hom phiaj kev ruaj ntseg hauv East Africa ib txhij los ntawm kev txhawb nqa kev ruaj ntseg hluav taws xob, huab cua hloov pauv khoom noj khoom haus thiab kev txuag dej hauv cheeb tsam. "Cov thev naus laus zis no tuaj yeem muab cov txiaj ntsig tseem ceeb rau tsoomfwv thiab cov neeg txiav txim siab nrhiav kev txhim kho kev nqis peev rau kev cuam tshuam ntau tshaj," daim ntawv ntxiv.
Tab sis nws kuj tseem ceeb tias qee qhov txiaj ntsig hauv kev tshawb fawb sib piv nrog cov uas pom los ntawm kev tshawb fawb agrivoltaics uas twb muaj lawm hauv thaj chaw huab cua. Dr Richard Randle-Boggis, tus thawj coj ntawm txoj kev tshawb no hais tias "Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias ib qhov loj me tsis haum txhua tus," "Peb yuav tsum tau kho cov tshuab no rau cov chaw tshwj xeeb, tshwj xeeb tshaj yog nyob rau hauv huab cua kub thiab qhuav."
Pab neeg tshawb fawb thoob ntiaj teb tau coj los ntawm University of Sheffield hauv kev koom tes nrog Lub Chaw rau Kev Tshawb Fawb Txog Kev Tshawb Fawb Kev Tshawb Fawb thiab Ntiaj Teb Agroforestry thiab University of Arizona.
