Vuba aha, Hydro yo muri Noruveje yasohoye raporo ivuga ko yageze ku masosiyete yose atabogamye muri karubone mu mwaka wa 2019, kandi ko yinjiye mu bihe bibi bya karubone guhera mu 2020. Nakuye raporo ku rubuga rwemewe rw'isosiyete maze ndeba neza uburyo Hydro yageze ku kutabogama kwa karubone mu gihe ibigo byinshi byari bikiri mu cyiciro cya "karubone".
Reka tubanze turebe ibisubizo.
Muri 2013, Hydro yatangije ingamba z’ikirere hagamijwe guhinduka kutagira aho ibogamiye mu buzima bwa 2020. Nyamuneka menya ko, ukurikije ubuzima.
Reka turebe imbonerahamwe ikurikira. Kuva mu 2014, imyuka ya karuboni y’isosiyete yose yagiye igabanuka uko umwaka utashye, kandi yagabanutse kugera munsi ya zeru muri 2019, ni ukuvuga ko imyuka ya karuboni y’isosiyete yose mu bikorwa by’ibikorwa n’ibikorwa biri munsi y’igabanuka ry’ibicuruzwa mu cyiciro cyo gukoresha.
Ibisubizo by’ibaruramari byerekana ko mu mwaka wa 2019, Hydro yangiza imyuka ya karuboni yari miliyoni 8.434, ibyuka byangiza imyuka ya karuboni ni toni miliyoni 4.969, naho ibyuka byatewe n’amashyamba ni toni 35.000, hamwe na toni miliyoni 13.438. Inguzanyo ya karubone ibicuruzwa bya Hydro bishobora kubona mu gihe cyo kuyikoresha bingana na toni miliyoni 13.657, kandi nyuma yo kohereza imyuka ya karubone hamwe n’inguzanyo ya karubone irangiye, imyuka ya karuboni ya Hydro ni toni 219.000.
Noneho ibyo bikora gute.
Icya mbere, ibisobanuro. Uhereye kubizunguruka byubuzima, kutabogama kwa karubone birashobora gusobanurwa muburyo butandukanye. Mu ngamba z’ikirere cya Hydro, kutabogama kwa karubone bisobanurwa nkuburinganire hagati y’ibyuka bihumanya ikirere mugihe cyo kubyara umusaruro no kugabanya ibyuka bihumanya mugihe cyo gukoresha ibicuruzwa.
Iyi moderi yo kubara ubuzima ni ngombwa.
Imiterere y’ikirere ya Hydro, ukurikije uko isosiyete ibibona, ikubiyemo ubucuruzi bwose bufite isosiyete, Ikigereranyo cy’icyuka cyoherezwa mu kirere gikubiyemo urugero rwa 1 (ibyuka bihumanya ikirere byangiza ikirere) hamwe n’ibyuka bya Scope 2 (ibyuka bihumanya ikirere bitaziguye bitewe n’amashanyarazi yaguzwe, ubushyuhe cyangwa ikoreshwa ry’amazi) nk'uko byasobanuwe n’inama y’ubucuruzi ku isi ishinzwe iterambere rirambye WBCSD GHG.
Hydro yabyaye toni miliyoni 2.04 za aluminiyumu y'ibanze muri 2019, kandi niba imyuka ya karuboni ari toni 16.51 za CO² / toni ya aluminium ukurikije ikigereranyo cy’isi, noneho imyuka ya karuboni muri 2019 igomba kuba toni miliyoni 33.68, ariko ibisubizo ni toni miliyoni 13.403 gusa (843.4 + 496.9), munsi y’urwego rw’isi rwangiza imyuka ya karubone.
Icy'ingenzi cyane, icyitegererezo cyabaze kandi kugabanya ibyuka bihumanya byazanywe n’ibicuruzwa bya aluminiyumu mu cyiciro cyo gukoresha, ni ukuvuga imibare ya toni miliyoni 13,657 ku ishusho iri hejuru.
Hydro igabanya cyane cyane urwego rwohereza imyuka ya karubone muri sosiyete binyuze munzira zikurikira.
[1] Gukoresha ingufu zishobora kubaho, mugihe tunoza ikoranabuhanga kugirango ugabanye amashanyarazi ya aluminium electrolytike
[2] Kongera ikoreshwa rya aluminiyumu yongeye gukoreshwa
[3] Kubara kugabanuka kwa karubone kubicuruzwa bya Hydro mugihe cyo gukoresha
Kubwibyo, kimwe cya kabiri cya Hydro itabogamye ya karubone igerwaho hifashishijwe kugabanya imyuka y’ikirere, ikindi gice kibarwa binyuze mu ngero.
1.Imbaraga z'amazi
Hydro ni isosiyete ya gatatu nini muri Noruveje ifite amashanyarazi, ifite ubushobozi busanzwe bwa 10TWh, bukoreshwa mu gukora aluminium electrolytike. Ibyuka byangiza imyuka ya aluminiyumu biva mu mashanyarazi biri munsi y’ikigereranyo cy’isi, kubera ko ibyinshi mu bicuruzwa bya aluminiyumu ku isi bikoresha amashanyarazi akomoka ku bicanwa biva mu kirere nka gaze gasanzwe cyangwa amakara. Muri iki cyitegererezo, amashanyarazi ya Hydro yingufu za aluminiyumu azimura izindi aluminiyumu ku isoko ry’isi, ibyo bikaba bihwanye no kugabanya ibyuka bihumanya ikirere. .
Aho: 14.9 ni impuzandengo y’amashanyarazi ku isi ikoreshwa na aluminiyumu 14.9 kWt / kg aluminium, na 5.2 ni itandukaniro riri hagati y’ibyuka bya karuboni ya aluminium yakozwe na Hydro n '"impuzandengo y’isi" (usibye Ubushinwa). Iyi mibare yombi ishingiye kuri raporo y’ishyirahamwe mpuzamahanga rya Aluminium.
2. Hafi ya aluminiyumu ikoreshwa cyane
Aluminium nicyuma gishobora gukoreshwa hafi yigihe kitazwi. Imyuka ya karubone ya aluminiyumu itunganijwe ni hafi 5% gusa ya aluminiyumu y'ibanze, kandi Hydro igabanya imyuka ihumanya ikirere muri rusange binyuze mu gukoresha cyane aluminiyumu.
Binyuze mu mashanyarazi no kongeramo aluminiyumu yongeye gukoreshwa, Hydro yashoboye kugabanya imyuka ya karuboni y’ibicuruzwa bya aluminiyumu kugeza munsi ya toni 4 za CO² / toni ya aluminium, ndetse ikagera no kuri toni 2 za CO² / toni ya aluminium. Hydro's CIRCAL 75R ibicuruzwa bivanze bikoresha aluminiyumu irenga 75%.
3. Kubara kugabanuka kwa karubone biterwa no gukoresha icyiciro cya aluminium
Icyitegererezo cya Hydro cyizera ko nubwo aluminiyumu y'ibanze izasohora imyuka myinshi ya parike mu cyiciro cy’umusaruro, gukoresha urumuri rwa aluminiyumu birashobora kugabanya cyane gukoresha ingufu, bityo bikagabanya ibyuka bihumanya ikirere mu rwego rwo gukoresha, kandi iki gice cyo kugabanya ibyuka bihumanya ikirere cyatewe no gukoresha aluminium yoroheje nacyo kibarirwa mu misanzu itabogamye ya Hydro, ni ukuvuga toni miliyoni 13.657. (Iyi logique iragoye gato kandi iragoye kuyikurikiza.)
Kuberako Hydro igurisha ibicuruzwa bya aluminiyumu gusa, itahura ikoreshwa rya aluminiyumu binyuze mubindi bigo murwego rwinganda. Hano, Hydro ikoresha Ubuzima-Cycle Assessment (LCA), ivuga ko ari undi muntu wigenga.
Kurugero, murwego rwo gutwara abantu, ubushakashatsi bwabandi bantu bwerekanye ko kuri buri 1kg ya aluminium yasimbujwe 2kg yicyuma, 13-23 kg ya CO² irashobora kugabanuka mugihe cyubuzima bwikinyabiziga. Ukurikije ubwinshi bwibicuruzwa bya aluminiyumu bigurishwa mu nganda zinyuranye zo hepfo, nko gupakira, kubaka, gukonjesha, nibindi, Hydro ibara igabanuka ry’ibyuka biva mu bicuruzwa bya aluminiyumu byakozwe na Hydro.
Igihe cyo kohereza: Nyakanga-20-2023