Kutshanje, iHydro yaseNorway ikhuphe ingxelo ebanga ukuba iphumelele ukungathathi hlangothi kwekhabhoni kwinkampani ngo-2019, kwaye ingene kwixesha lekhabhoni elibi ukusuka ngo-2020. Ndikhuphe ingxelo kwiwebhusayithi esemthethweni yenkampani kwaye ndajonga kufutshane ukuba iHydro izuze ukungathathi hlangothi kwekhabhoni. xa iinkampani ezininzi zazisekwinqanaba le "carbon peak".
Masibone isiphumo kuqala.
Kwi-2013, i-Hydro iqalise isicwangciso semozulu ngenjongo yokuba yi-carbon neutral ukusuka kumbono wobomi bomjikelo we-2020. Nceda uqaphele ukuba, kwimbono yomjikelezo wobomi.
Makhe sijonge le tshati ilandelayo.Ukusukela ngo-2014, ukukhutshwa kwekhabhoni kuyo yonke inkampani kuye kwancipha unyaka nonyaka, kwaye kuncitshiswe ukuya ngaphantsi kwe-zero ngo-2019, oko kukuthi, ukukhutshwa kwekhabhoni yenkampani yonke kwimveliso kunye nenkqubo yokusebenza kuphantsi kunokunciphisa ukukhutshwa. yemveliso kwinqanaba lokusetyenziswa.
Iziphumo zokubala zibonisa ukuba ngo-2019, ukukhutshwa kwekhabhoni ethe ngqo kwi-Hydro yayiziitoni ezisisi-8.434 sezigidi, ukukhutshwa kwekhabhoni engathanga ngqo yayiziitoni ezizizigidi ezi-4.969, kwaye ukukhutshwa okubangelwe kukugawulwa kwamahlathi kube ziitoni ezingama-35,000, kunye nokukhutshwa kweetoni ezizigidi ezili-13.438.Iikhredithi zekhabhoni ezinokuthi iimveliso ze-Hydro zifumane kwinqanaba lokusetyenziswa zilingana ne-13.657 yezigidi zeetoni, kwaye emva kokuba ukukhutshwa kwekhabhoni kunye neekhredithi zekhabhoni ziphelile, ukukhutshwa kwekhabhoni ye-Hydro kubi iitoni ezingama-219,000.
Ngoku isebenza njani.
Okokuqala, inkcazo.Ukusuka kwimbono yomjikelezo wobomi, ukungathathi hlangothi kwekhabhoni kunokuchazwa ngeendlela ezininzi.Kwisicwangciso-qhinga semozulu yeHydro, ukungathathi hlangothi kwekhabhoni kuchazwa njengebhalansi phakathi kokukhutshwa kwezinto ezikhutshwayo ngexesha lenkqubo yokuvelisa kunye nokunciphisa ukukhutshwa kwezinto ezikhutshwayo ngexesha lesigaba sokusetyenziswa kwemveliso.
Le modeli yokubala yomjikelo wobomi ibalulekile.
Imifuziselo yemozulu yeHydro, ngokwembono yenkampani, igubungela onke amashishini aphantsi kobunini benkampani, Imodeli yokubala yokukhutshwa kwekhabhoni igubungela yomibini umda woku-1 (yonke ukukhutshwa kwegesi yobushushu obuthe ngqo) kunye nokukhutshwa kwe-Scope 2 (ukukhutshwa kwerhasi engathanga ngqo ngenxa yombane othengiweyo, ubushushu okanye ukusetyenziswa komphunga) njengoko kuchazwa liBhunga loShishino lweHlabathi loPhuhliso oluZinzileyo lweWBCSD GHG Protocol.
I-Hydro ivelise i-2.04 yezigidi zeetoni ze-aluminium yokuqala ngo-2019, kwaye ukuba ukukhutshwa kwekhabhoni yi-16.51 yeetoni ze-CO²/ toni ye-aluminium ngokwe-avareji yehlabathi, ke ukukhutshwa kwekhabhoni ngo-2019 kufanele kube yi-33.68 yezigidi zeetoni, kodwa isiphumo si-13.403 yezigidi kuphela. iitoni (843.4 + 496.9), ngaphantsi kakhulu kwinqanaba lehlabathi lokukhutshwa kwekhabhoni.
Okubaluleke ngakumbi, imodeli iye yabala ukunciphisa ukukhutshwa okulethwe yimveliso ye-aluminium kwinqanaba lokusetyenziswa, oko kukuthi, inani le-13.657 yezigidi zeetoni kumzobo ongentla.
I-Hydro ikakhulu inciphisa inqanaba lokukhutshwa kwekhabhoni kwinkampani yonke ngokusebenzisa iindlela ezilandelayo.
[1] Ukusetyenziswa kwamandla avuselelekayo, ngelixa ukuphucula iteknoloji ukunciphisa ukusetyenziswa kombane we-electrolytic aluminium
[2] Yandisa ukusetyenziswa kwealuminiyam esetyenzisiweyo
[3] Bala ukucuthwa kwekhabhoni yeemveliso zeHydro ngexesha lenqanaba lokusetyenziswa
Ke ngoko, isiqingatha sokungathathi hlangothi kwekhabhoni ye-Hydro sifezekiswa ngokunciphisa ukukhutshwa kwetekhnoloji, kwaye esinye isiqingatha sibalwa ngeemodeli.
1.Amandla Amanzi
I-Hydro yinkampani yesithathu enkulu yombane wamanzi eNorway, enomthamo oqhelekileyo wonyaka we-10TWh, osetyenziselwa ukuveliswa kwe-aluminiyam ye-electrolytic.Ukukhutshwa kwekhabhoni yokuvelisa ialuminiyam evela kumandla ombane kuphantsi komndilili wehlabathi, kuba uninzi lwemveliso ye-aluminiyam yokuqala yehlabathi isebenzisa umbane oveliswe kumafutha efosili njengerhasi yendalo okanye amalahle.Kwimodeli, imveliso yombane we-Aluminiyam ye-Hydro iya kushenxisa enye i-aluminiyam kwimarike yehlabathi, elingana nokunciphisa ukukhutshwa kwezinto ezikhutshwayo.(Le ngqiqo iyadityaniswa.) Oku ngokuyinxenye kusekwe kumahluko phakathi kwealuminiyam eveliswa kumbane owenziwe ngamanzi kunye nomndilili wehlabathi jikelele, kubalelwa kukukhutshwa okupheleleyo kwe-Hydro ngale fomula ilandelayo:
Apho: I-14.9 yi-avareji yokusetyenziswa kombane wehlabathi kwimveliso ye-aluminium ye-14.9 kWh / kg ye-aluminium, kwaye i-5.2 ngumahluko phakathi kokukhutshwa kwekhabhoni ye-aluminium eveliswa yi-Hydro kunye nenqanaba "lehlabathi" (ngaphandle kwe-China).Omabini amanani asekelwe kwingxelo ye-International Aluminium Association.
2. Kusetyenziswa ialuminiyam eninzi esetyenzisiweyo
Ialuminiyam sisinyithi esinokuphinda sisetyenziswe phantse ngokungenasiphelo.Ukukhutshwa kwekhabhoni yealuminiyam esetyenzisiweyo malunga ne-5% kuphela ye-aluminiyam yokuqala, kwaye i-Hydro inciphisa ukukhutshwa kwekhabhoni yayo yonke ngokusetyenziswa ngokubanzi kwe-aluminiyam ehlaziyiweyo.
Ngombane wamanzi kunye nokongezwa kwealuminiyam esetyenzisiweyo, iHydro ikwazile ukunciphisa ukukhutshwa kwekhabhoni yeemveliso ze-aluminiyam ukuya ngaphantsi kweetoni ezi-4 zeCO²/itoni ye-aluminiyam, nangaphantsi kweetoni ezi-2 zeCO²/toni ye-aluminiyam.Iimveliso zealloyi zeHydro's CIRCAL 75R zisebenzisa ngaphezulu kwe-75% yealuminiyam ehlaziyiweyo.
3. Bala ukunciphisa ukukhutshwa kwekhabhoni okwenziwa linqanaba lokusetyenziswa kweemveliso ze-aluminium
Imodeli ye-Hydro ikholelwa ukuba nangona i-aluminium yokuqala iya kukhupha iigesi ezininzi ze-greenhouse kwinqanaba lokuvelisa, ukusetyenziswa kwe-aluminium ekhaphukhaphu kunokunciphisa kakhulu ukusetyenziswa kwamandla, ngokunciphisa ukukhutshwa kwegesi ye-greenhouse kwinqanaba lokusetyenziswa, kwaye le nxalenye yokunciphisa ukukhutshwa okubangelwa Ukusetyenziswa kwe-aluminium ekhaphukhaphu kukwabalwa kwigalelo lekhabhoni elingathathi hlangothi le-Hydro, oko kukuthi, inani le-13.657 yezigidi zeetoni.(Le ngqiqo inzima kwaye kunzima ukuyilandela.)
Kuba iHydro ithengisa kuphela iimveliso ze-aluminiyam, iyakuqonda ukusetyenziswa kwe-terminal ye-aluminium ngamanye amashishini kumxokelelwano woshishino.Apha, i-Hydro isebenzisa i-Life-Cycle Assessment (LCA), ethi ingumntu wesithathu ozimeleyo.
Umzekelo, kwicandelo lezothutho, izifundo zomntu wesithathu zibonise ukuba kwi-1kg nganye ye-aluminiyam endaweni ye-2kg yentsimbi, i-13-23kg ye-CO² inokucuthwa kumjikelo wobomi besithuthi.Ngokusekwe kumthamo weemveliso ze-aluminiyam ezithengiswa kumashishini ahlukeneyo asezantsi, njengokupakishwa, ukwakhiwa, ifriji, njl., iHydro ibala ukuncitshiswa kokukhutshwa okuvela kwiimveliso ze-aluminiyam eziveliswe yiHydro.
Ixesha lokuposa: Jul-20-2023