Christian Breyer 🦣 Profile picture
Professor for Solar Economy @UniLUT. Interested in sustainable energy systems.… - -
☀️ Leon-Gerard Vandenberg 🇳🇱🇨🇦🇦🇺 Math+e/acc Profile picture 1 subscribed
Nov 28 14 tweets 4 min read
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.…
Image 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
Oct 5 14 tweets 6 min read
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…
Image 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 .…
Oct 1 8 tweets 3 min read
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.…
Image 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
Sep 23 10 tweets 4 min read
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.…
Image 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
Jun 12 10 tweets 10 min read
1/ New opinion article @UniLUT & international collaborators… 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.
Apr 4 11 tweets 9 min read
1/ New research @UniLUT @KeinerDominik… investigates the role of #hydrogen in on- and off-grid residential solar PV prosumer systems as seasonal storage option in cost-optimised micro sector-coupling systems until 2050. 2/ Power, heat, transportation segments are modelled and analysed in 8 scenarios varying the availability of grid connection and cars in the system, compared to a 9th grid-only scenario. Cost-optimised solution found via linear optimisation of #LUTprosume model.
Mar 28 10 tweets 11 min read
1/ New research @UniLUT on value chain options for steel industry transition in Europe… - 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
Feb 8 8 tweets 7 min read
1/ @UniLUT research introduces an entirely new CO2 removal concept for ambitious climate targets with diverse co-benefits for acceptable cost:…. 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.
Dec 14, 2022 8 tweets 10 min read
/1 new research @UniLUT on #100RE bibliometrics… 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.
Dec 6, 2022 6 tweets 9 min read
/1 Latest @UniLUT research shows that #100RE in global power sector in 2030s is the least cost case:…. 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