Lub sij hawm them nyiaj rov qab yog dab tsi
TheEnergy Payback TimeorEPBT ntawm lub hnub ci PV system yog lub sijhawm uas nws siv rau lub zog hluav taws xob los tsim kom muaj lub zog sib npaug rau cov nyiaj uas tau coj los tsim PV system.
Piv txwv li, 11 kW hnub ci cog uas tsim tau 22.8MWh ib xyoos nrog rau tag nrho lub neej ntawm 570MWh, siv yog 48.83 MWh ua li ntawd. Txhawm rau nrhiav EPBT:
Nws yuav siv sij hawm 2.14 xyoo rau lub hnub ci zog los tsim tib lub zog uas tau siv los sib sau ua ke.
Yam tseem ceeb uas cuam tshuam rau lub zog them rov qab lub sijhawm
Lub sijhawm them rov qab lub zog yog cuam tshuam los ntawm peb yam hauv qab no:
Cov khoom siv hauv qhov system
Lub hnub ci cell efficiency
Qhov chaw thiab lwm yam irradiation
1. Lub zog them rov qab lub sij hawm thiab cov ntaub ntawv siv
Nyob rau hauv xyoo tas los no, manufacturers ntawm silicon wafershave tau txo cov thickness ntawm lub wafer thiab yog li ntawd txo cov nqi ntawm lub hnub ci cell ho. Ib qho kev ua haujlwm rau cov wafers nyias nyias yog cov tshuab tsis siv neeg soldering, uas ua rau lub zog tsawg dua rau lub hnub ci ntau dua li phau ntawv soldering. Hauv qab no koj tuaj yeem pom tias dhau kaum xyoo dhau los, wafer thicknesses tau raug txo los ntawm 300µmin 2004 mus rau 180µmin 2014. Fraunhofer tau sau cov thickness ntawm wafer thiab cov silicon siv hauv gram / Wp hauv ib lub rooj yooj yim, cov ntsiab lus zoo:
2. Lub zog them rov qab lub sij hawm thiab hnub ci cell efficiency
Thaum lub hnub ci kev ua haujlwm ntawm lub hnub ci nce, lub zog ntau dua yog tsim nrog cov khoom siv tib yam. Hauv qab no koj tuaj yeem pom qhov sib txawv hauv NREL' qhov zoo tshaj plaws Cell Efficiencies':
3.Lub zog them rov qab sijhawm thiab cuam tshuam txog irradiation
Raws li koj tuaj yeem pom los ntawm cov khoom siv Fraunhofer dhau' Lub Sijhawm Them Rov Qab Lub Sijhawm ntawm Multicrystalline Silicon PV Rooftop Systems' Hauv qab no, lub sijhawm them rov qab lub zog hauv Tebchaws Europe txawv ntawm kwv yees li 1 thiab 2.5 xyoo. Lub sijhawm them rov qab lub zog nyob rau sab qaum teb Europe yog 2.1 xyoo piv rau 1.2 xyoo nyob rau sab qab teb Europe.
Cov ntaub ntawv: Lorenz Friedrich, Fraunhofer ISE. Duab: JRC European Commission. Daim duab: PSE 2020 (Hloov teev nrog cov ntaub ntawv tshiab los ntawm Fraunhofer ISE)
