Christian Breyer Profile picture
Mar 28 10 tweets 11 min read Twitter logo Read on Twitter
1/ New research @UniLUT on value chain options for steel industry transition in Europe doi.org/10.1016/j.ener… - Key insights: low-cost renewable electricity & green, hydrogen required. 5 value chain combinations & DE, ES, FI with supply from CL, MA analysed. Impacts expected.
2/ Three different European markets investigated - DE, FI, ES – for primary and secondary steel production. Today’s main types are BF-BOF (coal), EAF (secondary with electricity), but also DRI-EAF (hydrogen) and BOF
3/ five different supply chain combinations investigated: a) full domestic production; b) import of H2 for steelmaking (shipping, pipeline); c) import of hot briquetted iron (HBI); d) import of crude steel.
4/ insights of global e-steel research are worked in sciencedirect.com/science/articl… , also cost and resources insights for #Chile sciencedirect.com/science/articl… and #Morocco link.springer.com/article/10.100… with data backing from global-local research sciencedirect.com/science/articl…
5/ H2 imports from #Chile and #Morocco considered in LH2 shipping and H2 pipelines. New infrastructure is not competitive to local supply in all analysed cases, due to good local resources and high H2 transportation costs. Details on FI, ES, DE in the following ...
6/ Case Finland: domestic green e-steel competitive to coal-based steel from 2030 onwards. HBI and steel import from #Morocco may be a challenge. H2 import not competitive.
7/ Case #Spain: domestic green e-steel competitive to coal-based steel from 2030 onwards. #Spain is fully competitive to all analysed value chain compositions indicating a best positioning for internationally competitive steelmaking.
8/ Case #Germany: domestic green e-steel competitive to coal-based steel from 2030 onwards. Domestic production competitive to HBI imports with slight disadvantage to steel import from #Morocco. H2 import not competitive.
9/ Conclusions: green steel competitive to domestic coal-based steel; H2 imports are not helpful for steel industry due to high H2 transport costs; HBI imports may reconfigure steel value chain; #Spain can establish a fully competitive green steel value chain.

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More from @ChristianOnRE

Feb 8
1/ @UniLUT research introduces an entirely new CO2 removal concept for ambitious climate targets with diverse co-benefits for acceptable cost: nature.com/articles/s4189…. desalination-based afforestation can emerge as an important & scalable net CO2 emission option. @UpekshaCaldera
2/ the core principle of the new CO2 removal (CDR) option is to use low-cost renewable electricity, efficient seawater desalination & drop irrigation and dry areas in the global sunbelt for desalination-based afforestation. Finally, low-cost RE and efficient solutions are key.
3/ the total global potential strongly depends on the assumptions of accessible land. Land with almost no rainfall, no land-use conflicts and permanently >5C temperature & 20% land utilisation is investigated: leading to a negative CO2 potential of 730 GtCO2 in this century
Read 8 tweets
Dec 14, 2022
/1 new research @UniLUT on #100RE bibliometrics ieeexplore.ieee.org/document/99446… Key insights: 550+ articles known; research field is growing with 26%/yr in research output for more than a decade and more than 1400 authors have been involved so far. 2021 articles counted until mid-2021.
/2 Europe, the US and Australia are the global research centers for #100RE, while a huge research gap for Global South countries still limits the impact of the research findings. Research from Global South for Global South is even more limited.
/3 most applied energy system models for #100RE are EnergyPLAN (74), LUT-ESTM (63), HOMER (22), TIMES (19), PyPSA (16), LOADMATCH (10), REMix (10), GENeSYS-MOD (10) - all others are below 10 articles. Balmorel articles were detected just recently.
Read 8 tweets
Dec 6, 2022
/1 Latest @UniLUT research shows that #100RE in global power sector in 2030s is the least cost case: sciencedirect.com/science/articl…. Comparison to #WEO scenarios of #IEA and @SvenTeske /DLR scenarios. Modelling in 1-h temporal and 9 global regions resolution. Image
/2 The @UniLUT scenarios reveal that #100RE anytime in 2030s is a least cost solution. Solar PV-battery is the inner core of least cost supported by wind power and other renewables. Sector coupling was not investigated but would further reduce system cost. Image
/3 Comparison to @SvenTeske /DLR reveals an interesting societal choice: low-cost with PV-wind-battery in the core vs higher resource/technology diversity for higher cost (+10-20%). Finally, different paths lead to #100RE and societies have the choice what feature to rate higher.
Read 6 tweets

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