90
6 Results
Australia has immense renewable electricity generation capacity with an
estimated 18.969 terawatts hour at technical potential. With 340 Mt yr -1 of potential renewable hydrogen production if all the renewable electricity produced at
technical potential would be used for electrolysis purpose, this would cover Australia’s hydrogen needs and fulfil its ambition of global leadership in hydrogen
exportation.
6.2
The Results of the Study Case China
6.2.1 The Current Decarbonisation Potential of China
Due to its large consumption of hydrogen, the decarbonisation potential of China
using the current renewable electricity production is limited, as shown in the
appendix 20. Like the Australia study case, the steel manufacturing option (b) is
not a viable scenario as that would mean that all the steel manufacturing currently
happening in China would be changed to the DRI-EAF route.
As per scenario (1), even if all the renewable electricity generated in China
is utilized to produce renewable hydrogen, the decarbonisation potential of the
industry sectors under the research scope would be of only 23% for the steel
manufacturing option (a).
Following the scenario (2), using the curtailed renewable electricity would
enable a decarbonisation potential of about 2% for the steel manufacturing option
(a) with a 19,20 Mt of CO 2 offset.
With the scenario (3) and the steel manufacturing option (a), the decarbonisation potential would be of 7% with a 54,92 Mt CO 2 offset.
6.2.2 The 2030 Decarbonisation Potential of China
The appendix 20 shows the decarbonisation potential of China with the targets
for renewable electricity generation capacity at 2030. According to the scenario (1) and depending on how much the steel manufacturing industry has shifted
from the option (a) to the option (b), China could be able to cover its hydrogen
demand if all the renewable electricity produced would be used for water electrolysis purpose. However, a full decarbonisation would not be possible as only
a 92% of decarbonisation potential could be reach with a full conversion to steel
manufacturing process option (b).
6 Results
Australia has immense renewable electricity generation capacity with an
estimated 18.969 terawatts hour at technical potential. With 340 Mt yr -1 of potential renewable hydrogen production if all the renewable electricity produced at
technical potential would be used for electrolysis purpose, this would cover Australia’s hydrogen needs and fulfil its ambition of global leadership in hydrogen
exportation.
6.2
The Results of the Study Case China
6.2.1 The Current Decarbonisation Potential of China
Due to its large consumption of hydrogen, the decarbonisation potential of China
using the current renewable electricity production is limited, as shown in the
appendix 20. Like the Australia study case, the steel manufacturing option (b) is
not a viable scenario as that would mean that all the steel manufacturing currently
happening in China would be changed to the DRI-EAF route.
As per scenario (1), even if all the renewable electricity generated in China
is utilized to produce renewable hydrogen, the decarbonisation potential of the
industry sectors under the research scope would be of only 23% for the steel
manufacturing option (a).
Following the scenario (2), using the curtailed renewable electricity would
enable a decarbonisation potential of about 2% for the steel manufacturing option
(a) with a 19,20 Mt of CO 2 offset.
With the scenario (3) and the steel manufacturing option (a), the decarbonisation potential would be of 7% with a 54,92 Mt CO 2 offset.
6.2.2 The 2030 Decarbonisation Potential of China
The appendix 20 shows the decarbonisation potential of China with the targets
for renewable electricity generation capacity at 2030. According to the scenario (1) and depending on how much the steel manufacturing industry has shifted
from the option (a) to the option (b), China could be able to cover its hydrogen
demand if all the renewable electricity produced would be used for water electrolysis purpose. However, a full decarbonisation would not be possible as only
a 92% of decarbonisation potential could be reach with a full conversion to steel
manufacturing process option (b).