Christian Breyer 🦣 Profile picture
Dec 14, 2022 8 tweets 10 min read Read on X
/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.
/4 leading scientific journals in the #100RE field are Energy (91), Applied Energy (67), Renewable Energy (57), Energies (51), Renewable and Sustainable Energy Reviews (42).
/5 leading teams according to published articles in #100RE are Breyer (74), Lund/Mathiesen (40), Greiner (27), DLR (26), Jacobson (22). Danish Technical University using Balmorel would be around (20) with newly detected articles.
/6 comparing top20 research organisations in #100RE to top20 in overall energy system modelling reveals a blind spot of otherwise leading organisations, as only @aalborg_uni & @chalmersuniv are in both rankings. #100RE community lacks diversity in gender and Global South.
/7 key teams have broad research cooperation among them, but also with less connected teams, while some teams in #100RE are not yet cooperating much with others in the field. 600+ references with almost all to #100RE research is cited and provided in the supplementary (tab Media)

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More from @ChristianOnRE

Feb 1
1/ New research @UniLUT @hasretshnmetu examines the net energy performance of 9 #decarbonisation global energy transition scenarios until 2050 by applying the systemwide #EROI at the electricity level. @NatureComms doi.org/10.1038/s41467…
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2/ Methods: The energy quality discrepancy of #EROI analyses was overcome with alignment to the energy quality level of electricity () and analysing #EROI on system level instead of technology level.
3/ Key findings signify that 9 energy transition scenarios remain at the upper limit of the net energy cliff (above 10), and they are feasible from a techno-economic perspective. #100RE systems do not result in any significant disruption to #EROI trends. Image
Read 10 tweets
Nov 28, 2023
1/ New research @UniLUT shows the impact of transportation on the final cost of green e-ammonia imported to #Europe . Cost of imports from #Chile & #Morocco are assessed for the case of shipping and pipelines in 2030-2050. doi.org/10.1016/j.jcle…
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2/ Methods: The central focus of the paper is the impact of transportation on the overall competitiveness. Based on detailed e-ammonia cost modelling transportation via pipelines & shipping was considered, incl terminals, ships, storage. Imports vs domestic costs are investigated Image
3/ e-Ammonia production costs depend on availability of wind & solar resources. Today regions with excellent wind resources yield the lowest costs. In future, lowest cost ammonia is produced in regions with the best solar resources. Deeper cost analyses: sciencedirect.com/science/articl…
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Read 14 tweets
Oct 5, 2023
1/ New research @UniLUT demonstrates that a #100RE system for the Caribbean & Puerto Rico can be achieved with an important role of offshore floating PV in case of land restrictions. New insights @eu_scores & @serendipv_eu ieeexplore.ieee.org/document/10268…
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2/ Novelties: first #100RE study for the Caribbean & Puerto Rico considering all energy sectors (power, heat, transport). First inclusion of offshore floating PV in an energy system optimisation model, based on earlier analysis on the case of #Maldives . doi.org/10.1016/j.apen…
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3/ background: Puerto Rico has a #100RE target for electricity , while scientific studies are missing. Review on scientific #100RE system studies for islands reveals substantial research gaps for the entire Caribbean bvirtualogp.pr.gov/ogp/Bvirtual/l…
doi.org/10.1002/wene.4…
Read 14 tweets
Oct 1, 2023
1/ New research @UniLUT examines critical materials in the energy transition. It finds the current definition is short term & local. Cobalt, copper, nickel, others, may face severe supply issues in two decades. A global approach is vital. doi.org/10.1016/j.mine…
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2/ The core analysis reveals the complexities of critical materials in the energy transition. The current criticality concept is influenced by short-term local concerns, hindering a globally agreed list of critical materials. Image
3/ Global material flows are complex. Reserves don't always align with production locations. Politics & geology are entwined, complicating coordination. Global data can hide local challenges. Cobalt criticality ties to politics, silver to overexploitation. Balance is vital. Image
Read 8 tweets
Sep 23, 2023
1/ New research @UniLUT identifies the Solar-to-X Economy as the central element towards prosperity in Africa and South Asia. Both regions will reach more than 50% of world population & energy demand in this century. sciencedirect.com/science/articl…
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2/ Africa & South Asia represent 40% in world population and 17% in primary energy demand today, but will grow to 60% of world population and more than 50% of primary energy by end of this century. Image
3/ Energy systems will develop towards a Solar-to-X Economy as shown on the case of #Africa. This is a special case of the Power-to-X Economy . South Asia follows the same path.
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Read 10 tweets
Jun 12, 2023
1/ New opinion article @UniLUT & international collaborators doi.org/10.1371/journa… discusses requirement of tightening the 1.5°C climate target to avoid risk of elevating climate tipping points. A 1.0C climate target is a safer target and possible via negative emissions. Image
2/ Even the 1.5°C climate target requires about 500 GtCO2 negative emissions if fully accounting for uncertainties. Climate budget according to @IPCC_CH for reaching 1.5°C with max certainty has been used up in early 2022.
3/ Though reaching the 1.5C target seems already hard to reach, it is not a safe target for civilisation. Local extreme weather events will have global consequences risking global food security doi.org/10.1038/s41558…
Read 10 tweets

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