Alexander Roth
@aroth.bsky.social
Affiliate Fellow @bruegel.org
Personal website: https://roth-a.de/
Personal website: https://roth-a.de/
Reposted by Alexander Roth
☀️ Good news! Renewables keep pushing fossil fuels out of the EU electricity mix.
In 2025, wind and solar power was 291 TWh higher than in 2021. The fossil fuel share went down by 257 TWh.
You can explore the data in our Bruegel European Clean Tech Tracker: european-clean-tech-tracker.bruegel.org
In 2025, wind and solar power was 291 TWh higher than in 2021. The fossil fuel share went down by 257 TWh.
You can explore the data in our Bruegel European Clean Tech Tracker: european-clean-tech-tracker.bruegel.org
January 27, 2026 at 3:15 PM
☀️ Good news! Renewables keep pushing fossil fuels out of the EU electricity mix.
In 2025, wind and solar power was 291 TWh higher than in 2021. The fossil fuel share went down by 257 TWh.
You can explore the data in our Bruegel European Clean Tech Tracker: european-clean-tech-tracker.bruegel.org
In 2025, wind and solar power was 291 TWh higher than in 2021. The fossil fuel share went down by 257 TWh.
You can explore the data in our Bruegel European Clean Tech Tracker: european-clean-tech-tracker.bruegel.org
Reposted by Alexander Roth
Which economy is more productive - Germany or the US? It seems the answer would be clear, but it's not.
The mood in Germany is so deeply negative, even aggressively pessimistic, that I thought we had fallen behind by a lot. But here are the facts - they surprised me as well:
The mood in Germany is so deeply negative, even aggressively pessimistic, that I thought we had fallen behind by a lot. But here are the facts - they surprised me as well:
January 13, 2026 at 1:39 PM
Which economy is more productive - Germany or the US? It seems the answer would be clear, but it's not.
The mood in Germany is so deeply negative, even aggressively pessimistic, that I thought we had fallen behind by a lot. But here are the facts - they surprised me as well:
The mood in Germany is so deeply negative, even aggressively pessimistic, that I thought we had fallen behind by a lot. But here are the facts - they surprised me as well:
Reposted by Alexander Roth
1/🎙️Dynamische Netzentgelte, Digitalisierung, deutsche Technikangst & italienische Geschirrspülmaschinen: #fossilfrei 38 ist da!
@aroth.bsky.social und ich sprechen im @diw.de Energiewendepodcast mit Prof. @tomasoduso.bsky.social, Vors. der #Monopolkommission, über das aktuelle Sektorgutachten
@aroth.bsky.social und ich sprechen im @diw.de Energiewendepodcast mit Prof. @tomasoduso.bsky.social, Vors. der #Monopolkommission, über das aktuelle Sektorgutachten
www.diw.de
January 13, 2026 at 12:49 PM
1/🎙️Dynamische Netzentgelte, Digitalisierung, deutsche Technikangst & italienische Geschirrspülmaschinen: #fossilfrei 38 ist da!
@aroth.bsky.social und ich sprechen im @diw.de Energiewendepodcast mit Prof. @tomasoduso.bsky.social, Vors. der #Monopolkommission, über das aktuelle Sektorgutachten
@aroth.bsky.social und ich sprechen im @diw.de Energiewendepodcast mit Prof. @tomasoduso.bsky.social, Vors. der #Monopolkommission, über das aktuelle Sektorgutachten
Reposted by Alexander Roth
1/ 🔌🚗 New data published today for 2025 shows strong growth for electric cars in Germany! Or does it?
Here are the facts, based on the recently updated #OpenEnergyTracker:
▶️ Purely battery-electric vehicles accounted for 22.2% of all new passenger cars registered in December.
Here are the facts, based on the recently updated #OpenEnergyTracker:
▶️ Purely battery-electric vehicles accounted for 22.2% of all new passenger cars registered in December.
January 6, 2026 at 4:32 PM
1/ 🔌🚗 New data published today for 2025 shows strong growth for electric cars in Germany! Or does it?
Here are the facts, based on the recently updated #OpenEnergyTracker:
▶️ Purely battery-electric vehicles accounted for 22.2% of all new passenger cars registered in December.
Here are the facts, based on the recently updated #OpenEnergyTracker:
▶️ Purely battery-electric vehicles accounted for 22.2% of all new passenger cars registered in December.
Reposted by Alexander Roth
The European Commission proposes to take a more central role in planning new electricity grid infrastructure.
This can make a lot of sense but as my colleague @aroth.bsky.social points out transparency is crucial. Continuing to use a private & closed-source model leaves the EC open to criticism
This can make a lot of sense but as my colleague @aroth.bsky.social points out transparency is crucial. Continuing to use a private & closed-source model leaves the EC open to criticism
December 16, 2025 at 2:49 PM
The European Commission proposes to take a more central role in planning new electricity grid infrastructure.
This can make a lot of sense but as my colleague @aroth.bsky.social points out transparency is crucial. Continuing to use a private & closed-source model leaves the EC open to criticism
This can make a lot of sense but as my colleague @aroth.bsky.social points out transparency is crucial. Continuing to use a private & closed-source model leaves the EC open to criticism
The EC’s long-awaited "Grids Package" is finally out. Moving toward a system-oriented approach for Europe's infrastructure is the right step, but it won't work in a black box.
In my latest for @bruegel.org, I argue why transparency is important to making this effective.
In my latest for @bruegel.org, I argue why transparency is important to making this effective.
⚡ Europeanised energy infrastructure planning is a good idea if done right
🤝 But will the Commission's proposal foster the trust needed to make a centralised infrastructure work?
🔗 Read @aroth.bsky.social's First Glance: www.bruegel.org/first-glance...
#EconSky
🤝 But will the Commission's proposal foster the trust needed to make a centralised infrastructure work?
🔗 Read @aroth.bsky.social's First Glance: www.bruegel.org/first-glance...
#EconSky
Europeanised energy infrastructure planning is a good idea if done right
A European Commission bid for more central oversight of energy infrastructure planning promises benefits if buy-in of EU countries can be secured
www.bruegel.org
December 16, 2025 at 10:20 AM
The EC’s long-awaited "Grids Package" is finally out. Moving toward a system-oriented approach for Europe's infrastructure is the right step, but it won't work in a black box.
In my latest for @bruegel.org, I argue why transparency is important to making this effective.
In my latest for @bruegel.org, I argue why transparency is important to making this effective.
Reposted by Alexander Roth
We launched our @bruegel.org EU Renewables Value Tracker based on great work by @mariejuge.bsky.social & @aroth.bsky.social:
www.bruegel.org/dataset/eu-renewables-value-track
Five insights 🧵:
1) The value of additional solar plants in south-east Europe and particularly Italy is still very high.
www.bruegel.org/dataset/eu-renewables-value-track
Five insights 🧵:
1) The value of additional solar plants in south-east Europe and particularly Italy is still very high.
December 9, 2025 at 9:59 AM
We launched our @bruegel.org EU Renewables Value Tracker based on great work by @mariejuge.bsky.social & @aroth.bsky.social:
www.bruegel.org/dataset/eu-renewables-value-track
Five insights 🧵:
1) The value of additional solar plants in south-east Europe and particularly Italy is still very high.
www.bruegel.org/dataset/eu-renewables-value-track
Five insights 🧵:
1) The value of additional solar plants in south-east Europe and particularly Italy is still very high.
Reposted by Alexander Roth
⚡ Europe’s electricity capacity mechanisms need to be better coordinated
🤝 How can the EU build consensus for greater cross-border coordination?
🖊️ By Pär Holmberg, @maurerchr.christophmaurer.de, Monika Morawiecka, Fabien Roques and @gzachmann.bsky.social
🔗 buff.ly/thcJkkR
#EconSky
🤝 How can the EU build consensus for greater cross-border coordination?
🖊️ By Pär Holmberg, @maurerchr.christophmaurer.de, Monika Morawiecka, Fabien Roques and @gzachmann.bsky.social
🔗 buff.ly/thcJkkR
#EconSky
November 18, 2025 at 4:25 PM
⚡ Europe’s electricity capacity mechanisms need to be better coordinated
🤝 How can the EU build consensus for greater cross-border coordination?
🖊️ By Pär Holmberg, @maurerchr.christophmaurer.de, Monika Morawiecka, Fabien Roques and @gzachmann.bsky.social
🔗 buff.ly/thcJkkR
#EconSky
🤝 How can the EU build consensus for greater cross-border coordination?
🖊️ By Pär Holmberg, @maurerchr.christophmaurer.de, Monika Morawiecka, Fabien Roques and @gzachmann.bsky.social
🔗 buff.ly/thcJkkR
#EconSky
Reposted by Alexander Roth
Forscher warnen vor gebremstem Ausbau von Erneuerbaren Energien und plädieren für klare Technologiewahl statt offener Ansätze. #Erneuerbare Energie
Forscher kritisieren gebremsten Ausbau von Erneuerbaren Energien
Forscher warnen vor gebremstem Ausbau von Erneuerbaren Energien und plädieren für klare Technologiewahl statt offener Ansätze.
www.heise.de
November 19, 2025 at 7:50 AM
Forscher warnen vor gebremstem Ausbau von Erneuerbaren Energien und plädieren für klare Technologiewahl statt offener Ansätze. #Erneuerbare Energie
Reposted by Alexander Roth
1/ How is Germany's #Energiewende going, and how should it proceed? In our brand-new piece in Communications Earth & Environment, we show that the expansion of variable renewables has progressed substantially in recent years, but electrification and flexibility have not kept pace. A short 🧵
Germany should accelerate its renewable energy transition - Communications Earth & Environment
Germany’s energy transition relies on variable renewables and electricity use across sectors, and it needs to accelerate. This Comment argues that consistent policy commitments to proven technologies,...
www.nature.com
October 29, 2025 at 9:31 PM
1/ How is Germany's #Energiewende going, and how should it proceed? In our brand-new piece in Communications Earth & Environment, we show that the expansion of variable renewables has progressed substantially in recent years, but electrification and flexibility have not kept pace. A short 🧵
Reposted by Alexander Roth
1/ 🔋 In Deutschland wird aktuell viel über #Stromspeicher geredet. Hier kommen ein paar frisch aufbereitete Daten auf Basis des #OpenEnergyTracker - und am Endes Threads noch ein Hot Take. openenergytracker.org/docs/germany...
October 7, 2025 at 8:10 PM
1/ 🔋 In Deutschland wird aktuell viel über #Stromspeicher geredet. Hier kommen ein paar frisch aufbereitete Daten auf Basis des #OpenEnergyTracker - und am Endes Threads noch ein Hot Take. openenergytracker.org/docs/germany...
Reposted by Alexander Roth
☀️ (Clean) Tech Tracker Tuesday: Employment expands across the EU's solar PV sector
👷 What impact is the expansion of #solar power in Europe having on job opportunities?
📊 Explore the Dataset here: buff.ly/O0Qx043
#EconSky
👷 What impact is the expansion of #solar power in Europe having on job opportunities?
📊 Explore the Dataset here: buff.ly/O0Qx043
#EconSky
September 30, 2025 at 3:01 PM
☀️ (Clean) Tech Tracker Tuesday: Employment expands across the EU's solar PV sector
👷 What impact is the expansion of #solar power in Europe having on job opportunities?
📊 Explore the Dataset here: buff.ly/O0Qx043
#EconSky
👷 What impact is the expansion of #solar power in Europe having on job opportunities?
📊 Explore the Dataset here: buff.ly/O0Qx043
#EconSky
Reposted by Alexander Roth
JOB POSTING 💼 As we keep expanding our work on energy, climate and clean tech, we at Bruegel - Improving economic policy are now searching for a climate economist to complement our team. Please share/apply! www.bruegel.org/careers/clim...
Climate economist
Deadline for applications: applications will be reviewed on a rolling basis
www.bruegel.org
September 10, 2025 at 9:27 AM
JOB POSTING 💼 As we keep expanding our work on energy, climate and clean tech, we at Bruegel - Improving economic policy are now searching for a climate economist to complement our team. Please share/apply! www.bruegel.org/careers/clim...
Reposted by Alexander Roth
NEW🚨The response to Draghi’s call for action on energy has thus so far been more incremental than disruptive. But potentially significant initiatives are on the way. These will represent Europe’s moment of truth for energy integration.
www.bruegel.org/first-glance...
www.bruegel.org/first-glance...
One year on from Draghi, where does EU energy policy stand?
Progress has been made on EU energy integration to underpin competitiveness, but much more remains to be done
www.bruegel.org
September 18, 2025 at 9:54 AM
NEW🚨The response to Draghi’s call for action on energy has thus so far been more incremental than disruptive. But potentially significant initiatives are on the way. These will represent Europe’s moment of truth for energy integration.
www.bruegel.org/first-glance...
www.bruegel.org/first-glance...
Reposted by Alexander Roth
1/ 🦆🐫 When the camel meets the duck: how storage patterns have changed in 🇩🇪
Cool new illustration on the #OpenEnergyTracker: average daily operations of pumped hydro storage in Germany since 2015. A little 🧵
🇩🇪🔌↩️
Cool new illustration on the #OpenEnergyTracker: average daily operations of pumped hydro storage in Germany since 2015. A little 🧵
🇩🇪🔌↩️
July 17, 2025 at 6:15 AM
1/ 🦆🐫 When the camel meets the duck: how storage patterns have changed in 🇩🇪
Cool new illustration on the #OpenEnergyTracker: average daily operations of pumped hydro storage in Germany since 2015. A little 🧵
🇩🇪🔌↩️
Cool new illustration on the #OpenEnergyTracker: average daily operations of pumped hydro storage in Germany since 2015. A little 🧵
🇩🇪🔌↩️
👇 New @eu-untangled.bsky.social episode out:
We discuss the EU's *AI regulation* with @nicolasmoes.bsky.social (Executive Director, The Future Society).
We discuss the EU's *AI regulation* with @nicolasmoes.bsky.social (Executive Director, The Future Society).
🚨 Episode Alert 🚨
❓ Why is the EU stepping in to regulate AI and is the AI act enough?
❓ Is Europe’s regulation holding back innovation - or could smart rules actually drive it?
With @nicolasmoes.bsky.social, Executive Director of The Future Society.
🔗 www.untangled-podcast.eu/can-the-eu-r...
❓ Why is the EU stepping in to regulate AI and is the AI act enough?
❓ Is Europe’s regulation holding back innovation - or could smart rules actually drive it?
With @nicolasmoes.bsky.social, Executive Director of The Future Society.
🔗 www.untangled-podcast.eu/can-the-eu-r...
July 14, 2025 at 6:44 AM
👇 New @eu-untangled.bsky.social episode out:
We discuss the EU's *AI regulation* with @nicolasmoes.bsky.social (Executive Director, The Future Society).
We discuss the EU's *AI regulation* with @nicolasmoes.bsky.social (Executive Director, The Future Society).
🔋 How much long-duration storage do we need in Europe, and what is the impact of #Dunkelflaute events?
🧾Take a look at our pre-print arxiv.org/abs/2411.17683 (with @kittelmartin.bsky.social & @wpschill.bsky.social).
👇 Martin's thread below is a great summary!
🧾Take a look at our pre-print arxiv.org/abs/2411.17683 (with @kittelmartin.bsky.social & @wpschill.bsky.social).
👇 Martin's thread below is a great summary!
June 6, 2025 at 2:53 PM
🔋 How much long-duration storage do we need in Europe, and what is the impact of #Dunkelflaute events?
🧾Take a look at our pre-print arxiv.org/abs/2411.17683 (with @kittelmartin.bsky.social & @wpschill.bsky.social).
👇 Martin's thread below is a great summary!
🧾Take a look at our pre-print arxiv.org/abs/2411.17683 (with @kittelmartin.bsky.social & @wpschill.bsky.social).
👇 Martin's thread below is a great summary!
Reposted by Alexander Roth
What exactly led to the Spain-Portugal blackout is still unknown, but this pod provides a great explanation of the power grid dynamics that are involved in these kinds of events. #energysky
You will come away smarter, & not b/c you will know "the answer" but b/c you will know the questions to ask👇
You will come away smarter, & not b/c you will know "the answer" but b/c you will know the questions to ask👇
Investigating a blackout is like a murder mystery. On this week's SHIFT KEY, Rob and I consider the suspects and dig into the mystery of what caused the massive blackout in Spain and Portugal last week. Along the way, we try to demystify the magic behind modern grids heatmap.news/podcast/shif... 🔌💡
Spain’s Blackout and the Miracle of the Modern Power Grid
Rob and Jesse go deep on the electricity machine.
heatmap.news
May 8, 2025 at 8:15 PM
What exactly led to the Spain-Portugal blackout is still unknown, but this pod provides a great explanation of the power grid dynamics that are involved in these kinds of events. #energysky
You will come away smarter, & not b/c you will know "the answer" but b/c you will know the questions to ask👇
You will come away smarter, & not b/c you will know "the answer" but b/c you will know the questions to ask👇
Reposted by Alexander Roth
1/ 🎙️ Lust auf einen Energiewende-Podcast am Wochenende? Wir haben für euch einen Deep Dive zum #Emissionshandel mit einem Gast, der dazu wirklich was zu sagen hat: Dr. Michael Pahle vom @pik-potsdam.bsky.social ⏩ #fossilfrei Folge 31 ist da! @diw.de @ariadneprojekt.bsky.social
DIW Berlin: 'fossilfrei' - der Energiewendepodcast des DIW Berlin
Folgen Die Energiewende erscheint oft kompliziert und unübersichtlich. Die Macher des "DIW-Monitor Energiewende", Alexander Roth und Wolf-Peter Schill, sortieren das für euch. Wir diskutieren, auch…
www.diw.de
May 3, 2025 at 6:10 AM
1/ 🎙️ Lust auf einen Energiewende-Podcast am Wochenende? Wir haben für euch einen Deep Dive zum #Emissionshandel mit einem Gast, der dazu wirklich was zu sagen hat: Dr. Michael Pahle vom @pik-potsdam.bsky.social ⏩ #fossilfrei Folge 31 ist da! @diw.de @ariadneprojekt.bsky.social
Reposted by Alexander Roth
Bottomline: the US will either falter and reverse everything, with substantial losses, or continue current path with huge losses. Credibility of this administration internationally is low, but the damage is deeper and will outlast it. Institutions provided no checks and balances.
1/Just back from 2 weeks in Asia. US engaged in the most far reaching attempt to restructure the global economy in a century and we have hit the omnishambles portion of the program: undermining US economic security and weaken US credibility in the world.
fortune.com/article/trum...
fortune.com/article/trum...
Trump had a ‘test case’ for trade negotiations with Japan. The failure to reach a deal now has analysts wondering if any will be signed
Trump’s team had hoped for some quick wins when it came to tariff negotiations. That’s looking increasingly unlikely.
fortune.com
April 24, 2025 at 7:09 PM
Bottomline: the US will either falter and reverse everything, with substantial losses, or continue current path with huge losses. Credibility of this administration internationally is low, but the damage is deeper and will outlast it. Institutions provided no checks and balances.
Reposted by Alexander Roth
🚨 Achtung Studis im Berliner Raum: wer hat Lust, uns bei der Arbeit mit Energiewende-Daten zu unterstützen? Join the Team #OpenEnergyTracker! openenergytracker.org Ggf. auch Mitarbeit beim Podcast #fossilfrei möglich. Ich freue mich auf eure Bewerbungen
March 28, 2025 at 10:13 AM
🚨 Achtung Studis im Berliner Raum: wer hat Lust, uns bei der Arbeit mit Energiewende-Daten zu unterstützen? Join the Team #OpenEnergyTracker! openenergytracker.org Ggf. auch Mitarbeit beim Podcast #fossilfrei möglich. Ich freue mich auf eure Bewerbungen
Reposted by Alexander Roth
Energiespeicher werden immer wichtiger. Zu diesem Schluss kommt unsere Kollegin Anna Billerbeck im aktuellen Ariadne-Explainer zusammen mit @wpschill.bsky.social, Alexander Burkhardt, @lionhirth.bsky.social sky.social @aroth.bsky.social ky.social und Dana Kirchem vom
@ariadneprojekt.bsky.social 👇
@ariadneprojekt.bsky.social 👇
1/ Wenn über die Energiewende gesprochen wird, taucht meist schnell die Frage auf: "Aber was ist mit Speichern?" Wir vom @ariadneprojekt.bsky.social haben mal versucht, die Rolle unterschiedlicher Typen von Speichern für die Energiewende kurz und einigermaßen allgemeinverständlich aufzubereiten 🔽
Hintergrund: Welche Rolle spielen Speicher in der Energiewende? | Ariadne
Wenn über die Energiewende gesprochen wird, tauchen schnell Fragen zu Speichern auf. Welche Technologien gibt es, wie viele Speicher werden gebraucht und sind fehlende Speicher am Ende ein Problem für...
ariadneprojekt.de
March 20, 2025 at 11:48 AM
Energiespeicher werden immer wichtiger. Zu diesem Schluss kommt unsere Kollegin Anna Billerbeck im aktuellen Ariadne-Explainer zusammen mit @wpschill.bsky.social, Alexander Burkhardt, @lionhirth.bsky.social sky.social @aroth.bsky.social ky.social und Dana Kirchem vom
@ariadneprojekt.bsky.social 👇
@ariadneprojekt.bsky.social 👇
Reposted by Alexander Roth
Die neuen Szenariorechnungen zur Klimaneutralität 2045 aus dem @ariadneprojekt.bsky.social sind da! 🔽 Wie schon in früheren Studien zeigt sich, dass erneuerbarer Strom der wichtigste Energieträger wird. Ein schneller Ausbau von Windkraft & PV und ihre Nutzung für Mobilität und Wärme sind essenziell.
Report: Die Energiewende kosteneffizient gestalten – Szenarien zur Klimaneutralität 2045 | Ariadne
Der vorliegende Ariadne-Szenarienreport spannt den Optionenraum für die deutsche Energiewende auf. Dazu werden fünf Szenarien modelliert, die Klimaziele und Klimaneutralität erreichen. Ein sechstes Sz...
ariadneprojekt.de
March 6, 2025 at 9:19 AM
Die neuen Szenariorechnungen zur Klimaneutralität 2045 aus dem @ariadneprojekt.bsky.social sind da! 🔽 Wie schon in früheren Studien zeigt sich, dass erneuerbarer Strom der wichtigste Energieträger wird. Ein schneller Ausbau von Windkraft & PV und ihre Nutzung für Mobilität und Wärme sind essenziell.
Reposted by Alexander Roth
american masculinity is so amazing. caring about clothes as a man apparently makes you "gay" but our position on geopolitics totally depends on whether you wear a suit
March 1, 2025 at 8:03 AM
american masculinity is so amazing. caring about clothes as a man apparently makes you "gay" but our position on geopolitics totally depends on whether you wear a suit
Reposted by Alexander Roth
Absolutely. Also we should pour all our energy into getting the next steps right rather than relitigating why we have not taken them already. We can do that later.
These ”none of this should’ve been a surprise and none of this is new” takes are getting a bit tired.
Yes, everyone in Europe expected Trump to be difficult and the US to withdraw from Europe in the mid- to long term. But I think it’s fair not to have expected the US to wholly turn against us.
Yes, everyone in Europe expected Trump to be difficult and the US to withdraw from Europe in the mid- to long term. But I think it’s fair not to have expected the US to wholly turn against us.
March 1, 2025 at 4:31 PM
Absolutely. Also we should pour all our energy into getting the next steps right rather than relitigating why we have not taken them already. We can do that later.