Johannes Schmidt
@joaoestrangeiro.bsky.social
Modelling the energy transition. Brazil & Europe. Assoc. Prof. in Energy & Resource Economics @BOKU, Vienna, Austria.
We find four weather regimes, which are associated with renewable electricity droughts.
September 17, 2025 at 8:28 AM
We find four weather regimes, which are associated with renewable electricity droughts.
If weather today was more like 50 years ago, renewable electricity droughts would be more pronounced - mainly driven by lower temperature back then. But there is more to this - find details in the paper.
September 17, 2025 at 8:28 AM
If weather today was more like 50 years ago, renewable electricity droughts would be more pronounced - mainly driven by lower temperature back then. But there is more to this - find details in the paper.
Wind power and temperature dependent demand are the most important contributors to renewable electricity droughts. In the North of Europe, the correlation between demand and wind power increases droughts, in the South it decreases them.
September 17, 2025 at 8:28 AM
Wind power and temperature dependent demand are the most important contributors to renewable electricity droughts. In the North of Europe, the correlation between demand and wind power increases droughts, in the South it decreases them.
Nope, USA wächst noch immer.
July 17, 2025 at 5:54 AM
Nope, USA wächst noch immer.
welche wachstumsrate wird hier gezeigt?
July 16, 2025 at 8:21 PM
welche wachstumsrate wird hier gezeigt?
Using PyPSA-EUR, we modeled a wide range of potential scenarios in a near-optimal way, minimizing and maximizing hydrogen production for different cost slacks. 3/n
June 11, 2025 at 4:31 PM
Using PyPSA-EUR, we modeled a wide range of potential scenarios in a near-optimal way, minimizing and maximizing hydrogen production for different cost slacks. 3/n
Previous assessments have shown a wide range of domestic green hydrogen production levels, largely driven by assumptions about Europe's CO₂ sequestration capacity. Additional uncertainties, e.g. biomass availability and hydrogen imports, further influence optimal domestic hydrogen production. 2/n
June 11, 2025 at 4:31 PM
Previous assessments have shown a wide range of domestic green hydrogen production levels, largely driven by assumptions about Europe's CO₂ sequestration capacity. Additional uncertainties, e.g. biomass availability and hydrogen imports, further influence optimal domestic hydrogen production. 2/n
How much hydrogen should Europe produce by 2040? Our analysis suggests that targeting around 25 Mt of hydrogen in 2040 enables a 90% emissions reduction—across a wide range of plausible future scenarios. 1/n
June 11, 2025 at 4:31 PM
How much hydrogen should Europe produce by 2040? Our analysis suggests that targeting around 25 Mt of hydrogen in 2040 enables a 90% emissions reduction—across a wide range of plausible future scenarios. 1/n
The global production of cars has not (yet) recovered from the production drop during the pandemic. And production levels have already slightly declined before. Are we facing peak car?
May 29, 2025 at 7:06 AM
The global production of cars has not (yet) recovered from the production drop during the pandemic. And production levels have already slightly declined before. Are we facing peak car?
Kann mir jemand die Budgetlogik erklären? Die Grafik zeigt inflationsangepasste Bruttopreise für Haushaltsenergie. Entlastet werden Pendler:innen mit der Verdreifachung des Pendlereuros, obwohl die Preise niedriger sind als 2005. Nicht entlastet werden Gaskund:innen - trotz starker Preisanstiege.
May 14, 2025 at 11:55 AM
Kann mir jemand die Budgetlogik erklären? Die Grafik zeigt inflationsangepasste Bruttopreise für Haushaltsenergie. Entlastet werden Pendler:innen mit der Verdreifachung des Pendlereuros, obwohl die Preise niedriger sind als 2005. Nicht entlastet werden Gaskund:innen - trotz starker Preisanstiege.
...as there is a trade-off between increasing output and increasing capacity factors. 5/n
March 18, 2025 at 10:45 AM
...as there is a trade-off between increasing output and increasing capacity factors. 5/n
System efficiency has mainly fallen due to aging effects. A lower specific power and higher hub heights have also contributed to some extent... 4/n
March 18, 2025 at 10:45 AM
System efficiency has mainly fallen due to aging effects. A lower specific power and higher hub heights have also contributed to some extent... 4/n
The increase in power in the wind can be mainly attributed to increasing hub heights, allowing access to wind at higher heights. The locations for wind power did not substantially change in terms of wind quality. Annual variations are quite significant. 3/n
March 18, 2025 at 10:45 AM
The increase in power in the wind can be mainly attributed to increasing hub heights, allowing access to wind at higher heights. The locations for wind power did not substantially change in terms of wind quality. Annual variations are quite significant. 3/n
Two other factors almost cancel out: a falling system efficiency is balanced by an increase in power in the wind available to turbines. 2/n
March 18, 2025 at 10:45 AM
Two other factors almost cancel out: a falling system efficiency is balanced by an increase in power in the wind available to turbines. 2/n
Building less wind power but more solar PV, as suggested by some, will increase total system cost by up to 20% because of the lack of solar PV generation in winter. 9/n
January 17, 2025 at 3:37 PM
Building less wind power but more solar PV, as suggested by some, will increase total system cost by up to 20% because of the lack of solar PV generation in winter. 9/n
After 2030, the scenarios start deviating more strongly. Partly, they use imported synthetic fuels to decarbonize industry and air- and ship transport. Partly, domestic renewables are expanded further. 8/n
January 17, 2025 at 3:37 PM
After 2030, the scenarios start deviating more strongly. Partly, they use imported synthetic fuels to decarbonize industry and air- and ship transport. Partly, domestic renewables are expanded further. 8/n
Total renewable expansion volumes until 2030 are higher than foreseen in the Austrian renewable expansion act. The speed of expansion is unprecedented in Austria.Only solar PV has shown extraordinary capacity additions in line with reaching climate neutrality in the last two years. 7/n
January 17, 2025 at 3:37 PM
Total renewable expansion volumes until 2030 are higher than foreseen in the Austrian renewable expansion act. The speed of expansion is unprecedented in Austria.Only solar PV has shown extraordinary capacity additions in line with reaching climate neutrality in the last two years. 7/n
We find that the energy system is going to crucially change from being fossil fuel to renewables dominated. A very rapid expansion of renewables until 2030, and a concurrent very rapid electrification of mobility and partly industry are necessary to keep on track for climate neutrality by 2040. 6/n
January 17, 2025 at 3:37 PM
We find that the energy system is going to crucially change from being fossil fuel to renewables dominated. A very rapid expansion of renewables until 2030, and a concurrent very rapid electrification of mobility and partly industry are necessary to keep on track for climate neutrality by 2040. 6/n
Stakeholders quantified core driver variables in the scenario process in a quantitative survey, after having developed qualitative narratives together with the project team. 3/n
January 17, 2025 at 3:37 PM
Stakeholders quantified core driver variables in the scenario process in a quantitative survey, after having developed qualitative narratives together with the project team. 3/n
We used a co-creating process, integrating stakeholder perspectives with a quantitative modeling processand derived qualitative narratives and quantitative scenarios to define four different scenarios, all of them reacing climate neutrality by 2040 (see figure). 2/n
January 17, 2025 at 3:37 PM
We used a co-creating process, integrating stakeholder perspectives with a quantitative modeling processand derived qualitative narratives and quantitative scenarios to define four different scenarios, all of them reacing climate neutrality by 2040 (see figure). 2/n
Ratio of US Natural Gas prices to Central European Natural Gas prices with and without CO2 certificate cost.
Source US prices: www.eia.gov/dnav/ng/ng_p...
Source Central European prices:
www.cegh.at/en/
Source currency exchange rate:
data.ecb.europa.eu/8eb4ccc6-5e7...
Source US prices: www.eia.gov/dnav/ng/ng_p...
Source Central European prices:
www.cegh.at/en/
Source currency exchange rate:
data.ecb.europa.eu/8eb4ccc6-5e7...
January 6, 2025 at 11:05 AM
Ratio of US Natural Gas prices to Central European Natural Gas prices with and without CO2 certificate cost.
Source US prices: www.eia.gov/dnav/ng/ng_p...
Source Central European prices:
www.cegh.at/en/
Source currency exchange rate:
data.ecb.europa.eu/8eb4ccc6-5e7...
Source US prices: www.eia.gov/dnav/ng/ng_p...
Source Central European prices:
www.cegh.at/en/
Source currency exchange rate:
data.ecb.europa.eu/8eb4ccc6-5e7...
Inflationsbereinigt sind die Benzinpreise für Konsument:innen unter dem Niveau von 2005, für Diesel etwa auf diesem Niveau. 10/n
January 6, 2025 at 7:43 AM
Inflationsbereinigt sind die Benzinpreise für Konsument:innen unter dem Niveau von 2005, für Diesel etwa auf diesem Niveau. 10/n
Die Preise für CO2 (Jahresdurchschnitt) sind inflationsbereinigt wieder gefallen. Sie sind deutlich höher als vor der Krise, um weitreichende Klimaschutzmaßnahmen zu finanzieren, sind sie aber zu niedrig. 9/n
January 6, 2025 at 7:43 AM
Die Preise für CO2 (Jahresdurchschnitt) sind inflationsbereinigt wieder gefallen. Sie sind deutlich höher als vor der Krise, um weitreichende Klimaschutzmaßnahmen zu finanzieren, sind sie aber zu niedrig. 9/n
Auch die Strompreise (Jahresdurchschnitt) sind, inflationsbereinigt, weiter zurückgegangen. Sie liegen damit über dem Niveau von 2019, aber weit unter dem Niveau von 2021-2023. 8/n
January 6, 2025 at 7:43 AM
Auch die Strompreise (Jahresdurchschnitt) sind, inflationsbereinigt, weiter zurückgegangen. Sie liegen damit über dem Niveau von 2019, aber weit unter dem Niveau von 2021-2023. 8/n
Die Inflationsbereinigten Gaspreise (Jahresdurchschnitt) sind im Vergleich zu 2023 etwas zurückgegangen. Sie liegen damit auf dem Niveau von 2013, aber über dem Tiefststand der 2010er Jahre. 7/n
January 6, 2025 at 7:43 AM
Die Inflationsbereinigten Gaspreise (Jahresdurchschnitt) sind im Vergleich zu 2023 etwas zurückgegangen. Sie liegen damit auf dem Niveau von 2013, aber über dem Tiefststand der 2010er Jahre. 7/n