Tsis ntev los no, Norway's Hydro tau tshaj tawm tsab ntawv ceeb toom hais tias tau ua tiav cov tuam txhab thoob plaws cov pa roj carbon nruab nrab hauv xyoo 2019, thiab kom tau nkag mus rau cov pa roj carbon tsis zoo los ntawm 2020. Kuv rub tawm daim ntawv tshaj tawm los ntawm lub tuam txhab lub vev xaib official thiab saib ze dua ntawm Hydro ua tiav carbon neutrality. thaum cov tuam txhab lag luam feem ntau tseem nyob rau theem "carbon peak".
Cia peb pom qhov tshwm sim ua ntej.
Hauv xyoo 2013, Hydro tau tsim lub tswv yim kev nyab xeeb nrog lub hom phiaj los ua cov pa roj carbon nruab nrab los ntawm kev xav txog lub neej los ntawm 2020. Thov nco ntsoov tias, los ntawm lub neej voj voog txoj kev xav.
Cia wb mus saib ntawm daim duab hauv qab no.Txij li xyoo 2014, cov pa roj carbon emission ntawm tag nrho lub tuam txhab tau poob qis ib xyoos ib zaug, thiab nws tau raug txo kom qis dua xoom hauv 2019, uas yog, cov pa roj carbon emission ntawm tag nrho cov tuam txhab hauv kev tsim khoom thiab kev ua haujlwm yog qis dua qhov txo qis emission. ntawm cov khoom nyob rau hauv lub sij hawm siv.
Cov txiaj ntsig suav tau pom tias xyoo 2019, Hydro cov pa hluav taws xob ncaj qha yog 8.434 lab tons, cov pa roj carbon emissions tsis ncaj yog 4.969 lab tons, thiab emissions los ntawm deforestation yog 35,000 tons, nrog tag nrho emissions ntawm 13.438 lab tons.Cov pa roj carbon credits uas Hydro cov khoom tuaj yeem tau txais hauv theem siv yog sib npaug rau 13.657 lab tons, thiab tom qab cov pa roj carbon emissions thiab cov qhab nia raug offset, Hydro's carbon emissions yog qhov tsis zoo 219,000 tons.
Tam sim no nws ua haujlwm li cas.
Ua ntej, lub ntsiab txhais.Los ntawm lub neej voj voog txoj kev xav, carbon neutrality tuaj yeem txhais tau ntau txoj hauv kev.Hauv Hydro lub tswv yim kev nyab xeeb, carbon neutrality txhais tau tias yog qhov sib npaug ntawm emissions thaum lub sij hawm tsim khoom thiab emissions txo thaum lub sij hawm siv cov khoom.
Cov qauv kev ntsuas lub neej no tseem ceeb heev.
Hydro cov qauv kev nyab xeeb, los ntawm lub tuam txhab txoj kev xav, npog tag nrho cov lag luam hauv tuam txhab ua tswv, Cov qauv carbon emission xam suav nrog ob qho tib si 1 (tag nrho cov emissions hauv tsev cog khoom ncaj qha) thiab Scope 2 emissions (indirect greenhouse gas emissions) vim yog muas hluav taws xob, cua sov los yog chav noj) raws li tau hais los ntawm World Business Council for Sustainable Development WBCSD GHG raws tu qauv.
Hydro tsim 2.04 lab tons ntawm thawj txhuas hauv 2019, thiab yog tias cov pa roj carbon emission yog 16.51 tons ntawm CO² / ton ntawm txhuas raws li lub ntiaj teb nruab nrab, ces cov pa roj carbon emission hauv 2019 yuav tsum yog 33.68 lab tons, tab sis qhov tshwm sim tsuas yog 13.403 lab. tons (843.4 + 496.9), deb ntawm lub ntiaj teb qib ntawm carbon emissions.
Qhov tseem ceeb tshaj, tus qauv kuj tau suav cov emission txo coj los ntawm cov khoom siv txhuas hauv cov theem siv, uas yog, daim duab ntawm -13.657 lab tons hauv daim duab saum toj no.
Hydro feem ntau txo qis cov pa roj carbon emissions thoob plaws lub tuam txhab los ntawm txoj kev hauv qab no.
[1] Kev siv lub zog tauj dua tshiab, thaum txhim kho thev naus laus zis los txo cov hluav taws xob electrolytic aluminium siv
[2] Ua kom muaj kev siv cov khoom siv rov ua dua tshiab
[3] Txheeb xyuas cov pa roj carbon tsawg ntawm cov khoom siv Hydro thaum lub sijhawm siv
Yog li ntawd, ib nrab ntawm Hydro's carbon neutrality yog ua tiav los ntawm kev siv thev naus laus zis txo qis, thiab ib nrab yog xam los ntawm cov qauv.
1. Dej Hwj chim
Hydro yog Norway lub tuam txhab loj tshaj plaws thib peb, nrog lub peev xwm txhua xyoo ntawm 10TWh, uas yog siv rau kev tsim cov khoom siv hluav taws xob electrolytic aluminium.Cov pa roj carbon emissions ntawm kev tsim aluminium los ntawm hydropower yog qis dua lub ntiaj teb nruab nrab, vim hais tias feem ntau ntawm lub ntiaj teb no cov thawj txhuas tsim siv hluav taws xob tsim los ntawm fossil fuels xws li natural gas los yog thee.Nyob rau hauv cov qauv, Hydro's hydropower ntau lawm ntawm txhuas yuav hloov lwm yam txhuas nyob rau hauv lub ntiaj teb no kev ua lag luam, uas yog sib npaug rau txo emissions.(Cov logic no yog convoluted.) Qhov no yog ib feem raws li qhov sib txawv ntawm txhuas ua los ntawm hydropower thiab lub ntiaj teb no nruab nrab, credit rau Hydro tag nrho cov emissions los ntawm cov qauv hauv qab no:
Qhov twg: 14.9 yog lub ntiaj teb kev siv hluav taws xob nruab nrab rau txhuas tsim 14.9 kWh / kg txhuas, thiab 5.2 yog qhov sib txawv ntawm cov pa roj carbon emissions ntawm txhuas tsim los ntawm Hydro thiab "lub ntiaj teb nruab nrab" (tsis suav Tuam Tshoj) qib.Ob daim duab yog raws li tsab ntawv ceeb toom los ntawm International Aluminium Association.
2. Muaj ntau cov khoom siv txhuas siv dua
Aluminium yog cov hlau uas tuaj yeem rov ua dua yuav luag tsis muaj sijhawm.Cov pa roj carbon emissions ntawm cov khoom siv rov ua dua tshiab tsuas yog kwv yees li 5% ntawm cov thawj txhuas, thiab Hydro txo nws cov pa roj carbon monoxide tag nrho los ntawm kev siv cov khoom siv txhuas.
Los ntawm hydropower thiab ntxiv ntawm cov khoom siv rov ua dua tshiab, Hydro tau tuaj yeem txo cov pa roj carbon emissions ntawm txhuas cov khoom kom qis dua 4 tons ntawm CO² / ton ntawm txhuas, thiab txawm tias qis dua 2 tons ntawm CO² / ton ntawm txhuas.Hydro's CIRCAL 75R alloy cov khoom siv ntau dua 75% rov ua dua txhuas.
3. Xam cov pa roj carbon emission txo tau tsim los ntawm kev siv theem ntawm cov khoom siv txhuas
Hydro tus qauv ntseeg hais tias txawm hais tias thawj txhuas txhuas yuav tawm ntau lub tsev xog paj gases nyob rau hauv cov theem ntau lawm, lub teeb yuag daim ntawv thov ntawm txhuas yuav zoo heev txo lub zog noj, li no yuav txo tau lub tsev xog paj emissions nyob rau hauv lub sij hawm siv, thiab ib feem ntawm cov emission txo los ntawm lub Lub teeb yuag daim ntawv thov ntawm txhuas kuj suav nrog hauv cov pa roj carbon nruab nrab ntawm Hydro, uas yog, daim duab ntawm 13.657 lab tons.(Qhov kev xav no yog qhov nyuaj me ntsis thiab nyuaj ua raws.)
Vim Hydro tsuas yog muag cov khoom lag luam txhuas, nws paub txog daim ntawv thov ntawm txhuas los ntawm lwm cov lag luam hauv cov saw hlau.Ntawm no, Hydro siv Kev Ntsuam Xyuas Lub Neej-Cycle (LCA), uas lees tias yog ib tus neeg sab nrauv sab nrauv.
Piv txwv li, hauv kev thauj mus los, cov kev tshawb fawb thib peb tau pom tias rau txhua 1kg ntawm txhuas hloov rau 2kg ntawm hlau, 13-23kg ntawm CO² tuaj yeem txo qis hauv lub neej voj voog ntawm lub tsheb.Raws li qhov ntim ntawm cov khoom lag luam txhuas muag rau ntau qhov kev lag luam hauv qab, xws li ntim khoom, kev tsim kho, tub yees, thiab lwm yam, Hydro suav cov emission txo los ntawm cov khoom txhuas uas tsim los ntawm Hydro.
Post lub sij hawm: Lub Xya hli ntuj-20-2023