Kev txuag hluav taws xob thiab ROI: Qhov Kev Pom Zoo ntawm "Lub Zog-Txuag" LED Loj Hlob Teeb
Qhov kev thov tias LED cog teeb yog "zog-txuag" yog ntau tshaj li kev lag luam rhetoric- nws yog cov hauv paus hauv qhov sib txawv hauv cov khoom siv no hloov hluav taws xob mus rau lub teeb siv tau rau cov nroj tsuag. Piv nrog rau cov teeb pom kev zoo ib txwm muaj xws li siab - siab sodium (HPS) teeb, LEDs muab kev txo qis zog, nrog rau qhov tiag - ntiaj teb kev txuag uas txhais tau tias ntsuas nyiaj txiag rov qab los ntawm lub sijhawm.
Kev Tshawb Fawb Tom Qab LED Zog Efficiency
LED loj hlob teeb ua tau zoo tshaj plaws teeb pom kev zoo feem ntau vim lawv lub peev xwm los tsom lub zog ntawm cov nroj tsuag siv tau tiag tiag. Nroj tsuag feem ntau tso siab rau xiav (400-500 nm) thiab liab (600-700 nm) lub teeb rau photosynthesis, thaum lub teeb ntsuab yog qhov cuam tshuam loj heev. HPS teeb emit ib tug dav spectrum, nrog rau cov loj npaum li cas ntawm unused wavelengths thiab tshaj cua sov- nkim mus txog 70% ntawm lub zog raws li thermal tso zis. Hauv kev sib piv, LEDs tuaj yeem tsim kho kom emit cov wavelengths tshwj xeeb, nrog50-70% tsawg zog nojrau tib yam photosynthetically nquag hluav taws xob (PAR) tso zis. Cov kev tshawb fawb hauv chav kuaj thiab kev sim ua liaj ua teb tsis tu ncua validate qhov no. Piv txwv li, kev tshawb fawb xyoo 2023 los ntawm American Society of Agricultural thiab Biological Engineers pom tias cov tshuab LED siv 58% tsawg zog dua HPS teeb thaum muab qhov sib npaug sib npaug rau kev cog qoob loo. Qhov kev ua tau zoo no yog los ntawm LEDs hloov 80-90% ntawm hluav taws xob rau hauv lub teeb tsom, piv rau tsuas yog 20-30% rau HPS.
xam ROI: Ib qho piv txwv
Thaum LEDs muaj tus nqi siab dua, lawv cov kev txuag hluav taws xob thiab kev siv lub neej ntev ua rau muaj zog ROI. Cia peb tshuaj xyuas 1,000-square-meter sab hauv tsev lettuce ua liaj ua teb kom ntsuas qhov no:
Kev teeb tsa HPS Traditional:Siv 100 teeb (600W txhua)=60kW tag nrho. Ua haujlwm 16 teev / hnub, 365 hnub / xyoo=60kW × 16h × 365=350,400 kWh / xyoo.
LED teeb:Siv 100 LED fixtures (300W txhua)=30kW tag nrho. Tib lub sijhawm ua haujlwm: 30kW × 16h × 365=175,200 kWh / xyoo. Tus nqi hluav taws xob txhua xyoo =26,280. LED lifespan: 50,000 teev (≈8.5 xyoo), yuav tsum tau 12 hloov/xyoo ntawm 150 txhua=1,800/xyoo. Tag nrho cov nqi txhua xyoo:
1,800 / xyoo. Tag nrho cov nqi: 28,080
ROI xam:
15,000÷27,430 ≈ 0.55 xyoo (6.6 lub hlis).
Qhov piv txwv no tsis suav nrog kev txuag nyiaj ntxiv los ntawm cov kev xav tau txias txias (LEDs tsim 70% tsawg tshav kub, txiav HVAC cov nqi) thiab cov qoob loo ntau dua (ntau lub teeb pom kev zoo feem ntau txhawb kev loj hlob los ntawm 10-20%), uas yuav luv ROI ntxiv.
Kev hloov pauv cuam tshuam tiag tiag-Cov txiaj ntsig hauv ntiaj teb
ROI ncua sij hawm sib txawv raws li yam xws li tus nqi zog, sijhawm ua haujlwm, thiab hom qoob loo. Hauv cov cheeb tsam uas muaj nqi hluav taws xob ntau dua (piv txwv li, $ 0.30 / kWh hauv thaj tsam ntawm Tebchaws Europe), ROI tuaj yeem poob qis dua 4 lub hlis. Rau qis- cov qoob loo zoo li tshuaj ntsuab, kev txuag tej zaum yuav qis dua me ntsis tab sis tseem ceeb heev. Hloov pauv, siv cov tshuab tsis tu ncua (piv txwv li, lub tsev cog khoom raws caij nyoog) yuav pom lub sijhawm them rov qab ntev dua, feem ntau 2-3 xyoos.
Ntev -lub sij hawm, LEDs muab cov txiaj ntsig zoo: 10-xyoo lub neej kev tsom xam qhia tias cov zaub xam lav saum toj no yuav txuag tau tshaj $ 270,000 nrog LEDs, suav nrog txhua tus nqi. Raws li LED thev naus laus zis nce qib thiab tus nqi poob, cov kev xa rov qab no tsuas yog txhim kho
Hauv cov ntsiab lus,"zog-txuag" LED loj hlob teeb xa cov txiaj ntsig pom tau, nrog 50-70% kev siv hluav taws xob qis dua thiab ROI feem ntau qis dua ib xyoos hauv qhov siab - siv cov xwm txheej. Rau cov neeg cog qoob loo, kev ua lej yog qhov tseeb: thawj zaug peev pale ib sab ntev - lub sij hawm txuag thiab kev ua haujlwm tau zoo.
