Christian Breyer
@christianonre.bsky.social
Professor for Solar Economy @UniLUT. Interested in sustainable energy-industry-CDR systems based on #100RE. Safe planetary boundaries matter.
http://youtube.com/watch?v=9jwJWK… -
http://lut.fi -
http://youtube.com/watch?v=9jwJWK… -
http://lut.fi -
9/ 🔄Grid interactions strongly influenced system-level results. Curtailment, storage utilisation, and residual load patterns shaped the environmental performance of PV systems in each country.
November 26, 2025 at 10:40 AM
9/ 🔄Grid interactions strongly influenced system-level results. Curtailment, storage utilisation, and residual load patterns shaped the environmental performance of PV systems in each country.
8/ Technological advances such as higher #cell efficiency, material reductions, and improved manufacturing significantly reduced environmental impacts. However, these gains varied depending on the regional electricity mix.
November 26, 2025 at 10:40 AM
8/ Technological advances such as higher #cell efficiency, material reductions, and improved manufacturing significantly reduced environmental impacts. However, these gains varied depending on the regional electricity mix.
4/ 🌊 #FloatingPV showed promising results in regions with limited land availability and favourable water conditions. ☀️Bifacial ground-mounted systems performed well due to higher energy yield under varied irradiance.
November 26, 2025 at 10:39 AM
4/ 🌊 #FloatingPV showed promising results in regions with limited land availability and favourable water conditions. ☀️Bifacial ground-mounted systems performed well due to higher energy yield under varied irradiance.
3/ A prospective #LCA modelling approach is applied to capture technological learning, efficiency improvement and material reduction trends that are expected in the coming decades. This enabled future-oriented #environmental indicators to be estimated for each #PV technology.
November 26, 2025 at 10:38 AM
3/ A prospective #LCA modelling approach is applied to capture technological learning, efficiency improvement and material reduction trends that are expected in the coming decades. This enabled future-oriented #environmental indicators to be estimated for each #PV technology.
1/📢New research @lut.fi in collaboration with @tecnalia.bsky.social @BecquerelForPV doi.org/10.1016/j.en... examines the environmental performance of next-generation PV systems, incl floating, bifacial ground-mounted & building-integrated PV for Finland, Germany, Spain.
November 26, 2025 at 10:37 AM
1/📢New research @lut.fi in collaboration with @tecnalia.bsky.social @BecquerelForPV doi.org/10.1016/j.en... examines the environmental performance of next-generation PV systems, incl floating, bifacial ground-mounted & building-integrated PV for Finland, Germany, Spain.
15/ 📘 Along the full article doi.org/10.1016/j.sp... more than 100 life cycle inventories📊 are ready for use.
Authors welcome #scientificengagement 🧠 on methodological development, prospective #LCA approaches and long-term assessments of #greenH2 systems.
Authors welcome #scientificengagement 🧠 on methodological development, prospective #LCA approaches and long-term assessments of #greenH2 systems.
November 19, 2025 at 4:42 PM
15/ 📘 Along the full article doi.org/10.1016/j.sp... more than 100 life cycle inventories📊 are ready for use.
Authors welcome #scientificengagement 🧠 on methodological development, prospective #LCA approaches and long-term assessments of #greenH2 systems.
Authors welcome #scientificengagement 🧠 on methodological development, prospective #LCA approaches and long-term assessments of #greenH2 systems.
14/ 🧩 A harmonised methodological framework links #pLCA, #RE modelling & #undergroundstorage assessment. This integrated approach offers transparent, reproducible insights for evaluating long-term hydrogen deployment and its environmental implications for all #LCA indicators.
November 19, 2025 at 4:41 PM
14/ 🧩 A harmonised methodological framework links #pLCA, #RE modelling & #undergroundstorage assessment. This integrated approach offers transparent, reproducible insights for evaluating long-term hydrogen deployment and its environmental implications for all #LCA indicators.
12/ #Chile🏜️achieves the lowest environmental impacts due to its high #solar PV contribution. Finland❄️ & Germany️🌤️exhibit higher values, reflecting lower solar irradiation & greater use of #wind. This shows #GreenH2 sustainability depends strongly on regional resources.
November 19, 2025 at 4:41 PM
12/ #Chile🏜️achieves the lowest environmental impacts due to its high #solar PV contribution. Finland❄️ & Germany️🌤️exhibit higher values, reflecting lower solar irradiation & greater use of #wind. This shows #GreenH2 sustainability depends strongly on regional resources.
11/ Broader #environmental indicators reveal improvements of 20-53% across human health⚕️, ecosystem quality🌿, and resource-use🪨. Small rises in acidification & human toxicity stem from material & operational burdens, highlighting areas where further innovation is needed.
November 19, 2025 at 4:40 PM
11/ Broader #environmental indicators reveal improvements of 20-53% across human health⚕️, ecosystem quality🌿, and resource-use🪨. Small rises in acidification & human toxicity stem from material & operational burdens, highlighting areas where further innovation is needed.
9/ Solar PV specific results reveal on the case of #Chile a GWP reduction of modern #solar PV technology from less than 20 gCO2-eq/kWh (today) to less than 5 gCO2-eq/kWh in 2050. This is in agreement with comparable research @UNSW in similar orders doi.org/10.1002/pip....
November 19, 2025 at 4:39 PM
9/ Solar PV specific results reveal on the case of #Chile a GWP reduction of modern #solar PV technology from less than 20 gCO2-eq/kWh (today) to less than 5 gCO2-eq/kWh in 2050. This is in agreement with comparable research @UNSW in similar orders doi.org/10.1002/pip....
8/ By 2050, remaining #GHG emissions🌡️ originate largely from materials, e.g. steel, silicon, concrete, aluminium, also fossil fuels in road & maritime transport. This indicates a pressing need for LCI of defossilised upstream supply chains to unlock the potential of #GreenH2.
November 19, 2025 at 4:38 PM
7/ Results reveal GWP100 values for hydrogen per kWhH2,LHV decrease 📉 from 30.7 - 47.2 g CO2-eq to 12.0 - 16.5 g CO2-eq from 2020 to 2050. These reductions are driven by technology learning, higher #RE penetration, and lower material requirements for key components.
November 19, 2025 at 4:38 PM
7/ Results reveal GWP100 values for hydrogen per kWhH2,LHV decrease 📉 from 30.7 - 47.2 g CO2-eq to 12.0 - 16.5 g CO2-eq from 2020 to 2050. These reductions are driven by technology learning, higher #RE penetration, and lower material requirements for key components.
2/ 🔬 A prospective #LCA approach integrates long-term defossilisation scenarios, enabling assessment of how renewable electricity mixes of solar PV & wind, alkaline electrolyser efficiencies and material intensities evolve, providing an outlook on future #GreenH2 sustainability.
November 19, 2025 at 4:36 PM
1/📢 New research @lut.fi in collaboration with @psich.bsky.social @polimi doi.org/10.1016/j.sp... presents a comprehensive prospective #LCA of baseload #hydrogen from off-grid #solarPV & #windpower with #electrolysis supported by underground storage. @SustProdCons
November 19, 2025 at 4:35 PM
1/📢 New research @lut.fi in collaboration with @psich.bsky.social @polimi doi.org/10.1016/j.sp... presents a comprehensive prospective #LCA of baseload #hydrogen from off-grid #solarPV & #windpower with #electrolysis supported by underground storage. @SustProdCons
12/ #Shetland's exports are cost-competitive with proposed imports from major solar-rich regions like #Morocco & #Australia. Sourcing hydrogen from a close partner like Shetland enhances EU energy security.
November 1, 2025 at 11:05 AM
12/ #Shetland's exports are cost-competitive with proposed imports from major solar-rich regions like #Morocco & #Australia. Sourcing hydrogen from a close partner like Shetland enhances EU energy security.
10/ The "All-in" scenario (Scenario 3), utilising 75 GW offshore wind and 111 GW wave power capacity, resulted in the highest potential export volume of over 626 TWh (H2,LHV) of green e-hydrogen annually, delivered at a cost of 77.6 €/MWh (H2,LHV).
November 1, 2025 at 11:05 AM
10/ The "All-in" scenario (Scenario 3), utilising 75 GW offshore wind and 111 GW wave power capacity, resulted in the highest potential export volume of over 626 TWh (H2,LHV) of green e-hydrogen annually, delivered at a cost of 77.6 €/MWh (H2,LHV).
9/ We used @EnergyPLANmodel to simulate #Shetland’s energy system with 3 scenarios for 2050 with large-scale export using different mixes (onshore, wave, offshore wind). Delivered costs were calculated for transport via pipeline to Netherlands. Exports dominate the energy system.
November 1, 2025 at 11:04 AM
9/ We used @EnergyPLANmodel to simulate #Shetland’s energy system with 3 scenarios for 2050 with large-scale export using different mixes (onshore, wave, offshore wind). Delivered costs were calculated for transport via pipeline to Netherlands. Exports dominate the energy system.
7/ #Shetland, located near key European markets, possesses excellent wind and wave energy resources, making it a strong contender to supply a noticeable share of the European hydrogen demand in 2050.
November 1, 2025 at 11:03 AM
7/ #Shetland, located near key European markets, possesses excellent wind and wave energy resources, making it a strong contender to supply a noticeable share of the European hydrogen demand in 2050.
1/ New @lut.fi research investigates Shetland's energy future, finding it can reach #100RE & become a green e-hydrogen export hub for #Europe by 2050. doi.org/10.1016/j.en.... Potential to export over 626 TWh (H2,LHV) annually at a competitive cost of 77.6 €/MWh (H2,LHV).
November 1, 2025 at 11:00 AM
1/ New @lut.fi research investigates Shetland's energy future, finding it can reach #100RE & become a green e-hydrogen export hub for #Europe by 2050. doi.org/10.1016/j.en.... Potential to export over 626 TWh (H2,LHV) annually at a competitive cost of 77.6 €/MWh (H2,LHV).
die kleinen roten Linien unten im Diagram sind Kernkraft - die dann auch noch 15 Jahre zu spät fertig ist. Kernkraft ist ein Medienhype völlig entkoppelt von der tristen Realität, dass da quasi nichts passiert, weil es um Faktoren zu teuer ist.
October 15, 2025 at 11:10 AM
die kleinen roten Linien unten im Diagram sind Kernkraft - die dann auch noch 15 Jahre zu spät fertig ist. Kernkraft ist ein Medienhype völlig entkoppelt von der tristen Realität, dass da quasi nichts passiert, weil es um Faktoren zu teuer ist.
12/ The six most used energy system models are HOMER, EnergyPLAN, LUT-ESTM, Balmorel, PyPSA, and TIMES. Thereof the by far most citations receive EnergyPLAN, HOMER, and LUT-ESTM.
October 14, 2025 at 4:52 PM
12/ The six most used energy system models are HOMER, EnergyPLAN, LUT-ESTM, Balmorel, PyPSA, and TIMES. Thereof the by far most citations receive EnergyPLAN, HOMER, and LUT-ESTM.
11/ In total, there are 479 analyses for Europe, 156 for the Americas, 81 for Southeast Asia, 80 for SAARC, 75 for Global, 73 for Africa, 62 for Northeast Asia, 33 for the Middle East, 21 for International, and 7 for Eurasia. Europe is the by far most intensive studied region.
October 14, 2025 at 4:51 PM
11/ In total, there are 479 analyses for Europe, 156 for the Americas, 81 for Southeast Asia, 80 for SAARC, 75 for Global, 73 for Africa, 62 for Northeast Asia, 33 for the Middle East, 21 for International, and 7 for Eurasia. Europe is the by far most intensive studied region.
10/ Industrial process heat is the most studied industrial segment, usually within the heat sector, often serving as a first step to include industries in analyses. Less than 10% of articles cover specific industries.
October 14, 2025 at 4:51 PM
10/ Industrial process heat is the most studied industrial segment, usually within the heat sector, often serving as a first step to include industries in analyses. Less than 10% of articles cover specific industries.
9/ Solar PV and wind power dominate power generation options, appearing in 1001 and 1002 articles respectively, together representing 94% of the database.
October 14, 2025 at 4:50 PM
9/ Solar PV and wind power dominate power generation options, appearing in 1001 and 1002 articles respectively, together representing 94% of the database.