Muva nje, i-Hydro yaseNorway ikhiphe umbiko othi izuze ukungathathi hlangothi kwekhabhoni enkampanini yonke ngo-2019, nokuthi ingene enkathini ye-carbon negative kusukela ngo-2020. Ngilande umbiko kuwebhusayithi esemthethweni yenkampani futhi ngabhekisisa ukuthi i-Hydro izuze kanjani ukungathathi hlangothi kwe-carbon. ngenkathi izinkampani eziningi zisesesigabeni "se-carbon peak".
Ake sibone umphumela kuqala.
Ngo-2013, i-Hydro yethula isu lesimo sezulu ngomgomo wokungathathi hlangothi kwekhabhoni ngokombono womjikelezo wokuphila ngo-2020. Sicela wazi ukuthi, ngokombono womjikelezo wempilo.
Ake sibheke ishadi elilandelayo.Kusukela ngo-2014, ukukhishwa kwekhabhoni yenkampani yonke bekwehla unyaka nonyaka, futhi yehliswe yaba ngaphansi kuka-zero ngo-2019, okungukuthi, ukukhishwa kwekhabhoni kuyo yonke inkampani ekukhiqizeni nasekusebenzeni kuphansi kunokwehliswa kwe-emission. yomkhiqizo osesigabeni sokusebenzisa.
Imiphumela yokubala ikhombisa ukuthi ngonyaka ka-2019, ukukhishwa kwekhabhoni eqondile ye-Hydro bekungamathani ayizigidi eziyi-8.434, ukukhishwa kwekhabhoni engaqondile kube amathani ayizigidi ezingama-4.969, kanti ukukhishwa okubangelwe ukugawulwa kwamahlathi bekungamathani angama-35,000, nokuphuma okuphelele kwamathani ayizigidi eziyi-13.438.Amakhredithi ekhabhoni imikhiqizo ye-Hydro engawathola esigabeni sokusebenzisa alingana namathani ayizigidi eziyi-13.657, futhi ngemuva kokukhishwa kwekhabhoni kanye nekhredithi yekhabhoni, ukukhishwa kwekhabhoni ye-Hydro kuba namathani angama-219,000 angemuhle.
Manje lokho kusebenza kanjani.
Okokuqala, incazelo.Ngokombono womjikelezo wempilo, ukungathathi hlangothi kwekhabhoni kungachazwa ngezindlela eziningi.Kusu lesimo sezulu le-Hydro, ukungathathi hlangothi kwekhabhoni kuchazwa njengebhalansi phakathi kwezinto ezikhishwayo ngesikhathi senqubo yokukhiqiza kanye nokwehliswa kwesisi esiphumayo phakathi nesigaba sokusetshenziswa komkhiqizo.
Le modeli yokubala yomjikelezo wempilo ibalulekile.
Amamodeli wesimo sezulu we-Hydro, ngokombono wenkampani, ahlanganisa wonke amabhizinisi angaphansi kobunikazi benkampani, Imodeli yokubala ukukhishwa kwekhabhoni ihlanganisa kokubili ububanzi 1 (konke ukukhishwa kwegesi ebamba ukushisa okuqondile) kanye nokukhishwa kwe-Scope 2 (ukukhishwa kwegesi ebamba ukushisa okungaqondile ngenxa kagesi othengiwe, ukushisa noma ukusetshenziswa kwesitimu) njengoba kuchazwe yiWorld Business Council for Sustainable Development WBCSD GHG Protocol.
IHydro ikhiqize amathani ayizigidi ezi-2.04 e-aluminium eyinhloko ngo-2019, futhi uma ukukhishwa kwekhabhoni kungamathani ayi-16.51 e-CO²/ ton ye-aluminium ngokwesilinganiso somhlaba, khona-ke ukukhishwa kwekhabhoni ngo-2019 kufanele kube amathani ayizigidi ezingama-33.68, kodwa umphumela uba izigidi eziyi-13.403 kuphela. amathani (843.4+496.9), ngaphansi kakhulu kwezinga lomhlaba lokukhishwa kwekhabhoni.
Okubaluleke nakakhulu, imodeli iphinde yabala ukunciphisa ukukhishwa okulethwe imikhiqizo ye-aluminium esigabeni sokusetshenziswa, okungukuthi, isibalo samathani ayizigidi ezingu-13.657 esithombeni esingenhla.
I-Hydro inciphisa kakhulu izinga lokukhishwa kwekhabhoni kuyo yonke inkampani ngokusebenzisa lezi zindlela ezilandelayo.
[1] Ukusetshenziswa kwamandla avuselelekayo, kuyilapho kuthuthukiswa ubuchwepheshe ukuze kuncishiswe ukusetshenziswa kukagesi we-electrolytic aluminium
[2] Khulisa ukusetshenziswa kwe-aluminium egaywe kabusha
[3] Bala ukuncishiswa kwekhabhoni yemikhiqizo ye-Hydro ngesikhathi sokusebenzisa
Ngakho-ke, ingxenye yokungathathi hlangothi kwekhabhoni ye-Hydro ifinyelelwa ngokuncishiswa kokungcoliswa komshini, kanti enye ingxenye ibalwa ngamamodeli.
1.Amandla Amanzi
I-Hydro iyinkampani yesithathu enkulu kunazo zonke ekhiqiza amandla ngamanzi e-Norway, enamandla avamile wonyaka angu-10TWh, asetshenziselwa ukukhiqizwa kwe-electrolytic aluminium.Ukukhishwa kwekhabhoni kokukhiqiza i-aluminiyamu kumandla aphehlwa ngamanzi kuphansi kunesilinganiso somhlaba, ngenxa yokuthi ukukhiqizwa kwe-aluminiyamu okuyinhloko emhlabeni wonke kusebenzisa ugesi okhiqizwa kumafutha ezinto ezimbiwa phansi njengegesi yemvelo noma amalahle.Kulo modeli, ukukhiqizwa kwe-aluminiyamu ye-hydropower ye-Hydro kuzosusa enye i-aluminium emakethe yomhlaba, okulingana nokunciphisa ukukhishwa kwegesi.(Lokhu kunengqondo kuhlanganisiwe.) Lokhu ngokwengxenye kusekelwe kumehluko phakathi kwe-aluminiyamu ekhiqizwe ku-hydropower kanye nesilinganiso somhlaba wonke, esifakwa esibalweni esiphelele se-Hydro ngefomula elandelayo:
Kuphi: I-14.9 iyisilinganiso somhlaba esisetshenziswa ugesi ekukhiqizeni i-aluminium engu-14.9 kWh/kg i-aluminium, futhi u-5.2 umehluko phakathi kokukhishwa kwekhabhoni ye-aluminium ekhiqizwe yi-Hydro kanye nezinga "lomhlaba jikelele" (ngaphandle kwe-China).Zombili lezi zibalo zisekelwe embikweni we-International Aluminium Association.
2. Kusetshenziswa i-aluminium eningi egaywe kabusha
I-Aluminium iyinsimbi engagaywa kabusha cishe unomphela.Ukukhishwa kwekhabhoni ye-aluminium egaywe kabusha cishe ku-5% kuphela yaleyo ye-aluminium eyinhloko, futhi i-Hydro yehlisa ukukhishwa kwayo kwekhabhoni kukonke ngokusebenzisa kakhulu i-aluminium egaywe kabusha.
Ngogesi ophehlwa ngamanzi kanye nokwengezwa kwe-aluminium egaywe kabusha, i-Hydro ikwazile ukunciphisa ukukhishwa kwekhabhoni emikhiqizweni ye-aluminium ibe ngaphansi kwamathani angu-4 e-CO²/thani le-aluminium, futhi ize ibe ngaphansi kwamathani angu-2 e-CO²/thani le-aluminium.Imikhiqizo ye-alloy ye-Hydro's CIRCAL 75R isebenzisa ngaphezu kuka-75% i-aluminium egaywe kabusha.
3. Bala ukuncishiswa kokukhishwa kwekhabhoni okukhiqizwa isigaba sokusetshenziswa kwemikhiqizo ye-aluminium
Imodeli ye-Hydro ikholelwa ukuthi nakuba i-aluminium eyinhloko izokhipha amagesi amaningi abamba ukushisa esigabeni sokukhiqiza, ukusetshenziswa kwe-aluminium engasindi kunganciphisa kakhulu ukusetshenziswa kwamandla, ngaleyo ndlela kunciphise ukukhishwa kwegesi ebamba ukushisa esigabeni sokusebenzisa, futhi le ngxenye yokunciphisa ukukhishwa okubangelwa amandla. Ukusetshenziswa kwe-aluminium engasindi nakho kubalwa kumnikelo we-carbon neutral we-Hydro, okungukuthi, isibalo samathani ayizigidi eziyi-13.657.(Le logic iyinkimbinkimbi futhi kunzima ukuyilandela.)
Ngenxa yokuthi i-Hydro ithengisa kuphela imikhiqizo ye-aluminium, ibona ukusetshenziswa kwe-aluminium esibulalayo ngamanye amabhizinisi ochungechungeni lwezimboni.Lapha, i-Hydro isebenzisa i-Life-Cycle Assessment (LCA), ethi iyingxenye yangaphandle ezimele.
Isibonelo, emkhakheni wezokuthutha, izifundo zezinkampani zangaphandle zibonise ukuthi ku-1kg ngayinye ye-aluminium esikhundleni sika-2kg wensimbi, u-13-23kg we-CO² angancishiswa phakathi nomjikelezo wempilo yemoto.Ngokusekelwe kumthamo wemikhiqizo ye-aluminium edayiselwa izimboni ezihlukahlukene ezansi nomfula, njengokupakisha, ukwakha, isiqandisi, njll., i-Hydro ibala ukuncishiswa kokungcola okuvela emikhiqizweni ye-aluminium ekhiqizwe i-Hydro.
Isikhathi sokuthumela: Jul-20-2023