Gunnar Luderer
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gunnarenergyclima.bsky.social
Gunnar Luderer
@gunnarenergyclima.bsky.social

Energy Researcher. Leader of Energy Systems Research at PIK. Professor of Global Energy Systems at TU Berlin. Working on strategies for a rapid transformation to climate-neutral energy systems.
https://www.pik-potsdam.de/members/luderer/ .. more

Economics 31%
Environmental science 26%

New very important analysis on the 1.5°C target based on the REMIND model 👇
🚨🚨🚨 NEW REPORT ALERT 🚨🚨🚨
@climateanalytics.org has a new report out today that I’m really excited about. It’s all about 1.5ºC...

▶️ Is overshooting 1.5ºC inevitable?
▶️ Can we still get temperatures back below 1.5ºC?
▶️ If so, how?

If you’re interested in our findings, buckle up for a mega thread...

Reposted by Gunnar Luderer

🚨🚨🚨 NEW REPORT ALERT 🚨🚨🚨
@climateanalytics.org has a new report out today that I’m really excited about. It’s all about 1.5ºC...

▶️ Is overshooting 1.5ºC inevitable?
▶️ Can we still get temperatures back below 1.5ºC?
▶️ If so, how?

If you’re interested in our findings, buckle up for a mega thread...

Reposted by Gunnar Luderer

📄 Heute erschienen: unser Report zur langfristigen Wettbewerbsfähigkeit energieintensiver Grundstoffe in DE und der Option des Imports grüner Vorprodukte.

🔗 ariadneprojekt.de/publikation/...

Zusammenfassung der Kernergebnisse im 🧵 … 1/7

Reposted by Gunnar Luderer

Here is a first version: github.com/lambwf/Tidy-...

Any feedback welcome!
github.com

Reposted by Gunnar Luderer

⚡ New paper in @natcomms.nature.com on decarbonizing the hard-to-electrify sectors!

Which abatement option is most cost-efficient for the steel, cement, chemical, or long-distance transport sectors? In this paper, we explore the mitigation landscape of each sector.

🔗 Article: rdcu.be/ejLI0
Exploring techno-economic landscapes of abatement options for hard-to-electrify sectors
Nature Communications - Abatement options for hard-to-electrify sectors (e.g., steel, aviation) face uncertainty in future costs and feasibility. This techno-economic analysis shows that despite...
rdcu.be

Reposted by Gunnar Luderer

#Ariadne-Forscher @gunnarenergyclima.bsky.social vom @pik-potsdam.bsky.social zu den notwendigen #Investitionen für eine erfolgreiche #Energiewende, die Deutschlands #Wettbewerbsfähigkeit sichert.

Mehr dazu im neuen #Szenarienreport2025 vom Kopernikus-Projekt Ariadne 👉 buff.ly/SSTJHC2

Reposted by Gunnar Luderer

China’s government has plans to add steel, aluminum, and cement producers to the set of entities covered by emissions cap and trade schemes by the end of 2025 www.bloomberg.com/news/article...
🔌💡
China Vows to Expand Carbon Market in Push to Control Emissions
China’s top leaders pledged to expand the nation’s emissions trading system to cover more industries amid a wider push to accelerate efforts to limit greenhouse gas pollution.
www.bloomberg.com

Reposted by Gunnar Luderer

Eine sehr umfassende Modellierungsstudie, zu einem guten Teil auf Basis offener Modelle 👍 Gut gemacht, @gunnarenergyclima.bsky.social und @nworbmot.bsky.social !👏
Im Folgenden ein paar schnelle Takes zu ein paar Highlights:

Reposted by Gunnar Luderer

Once upon a time, the social democrats were the workers’ party in Germany.

In the election today the extreme right AfD gained 3x more support from workers than the SPD.

(3) Very difficult to see how timeline and process of this report can be salvaged. The IPCC assessments on mitigation provide essential guidance for climate policy processes, and will be crucial to informing the next global stock take and subsequent climate negotiations on emission reduction targets

(2)This stop-work order comes on the eve of an IPCC plenary scheduled for next week. Hardly a coincidence: That plenary is supposed to approve the outline for the next assessment next IPCC report on climate change mitigation developed by Kate Calvin and team together with dozens of other scientists.

(1) Kate is an absolutely outstanding scientist who has made many essential contributions to climate science, such as transformation pathways towards climate stabilization. I had the privilege to work with her on several projects. So heartbreaking to see her curtailed in this way.

🚨 Now CCN-official 🚨 Trump issues stop-work-order to NASA chief scientist #KateCalvin, who is also co-chair of the IPCC's working group in charge of the next assessment on climate change mitigation. This is brutal, on so many levels. edition.cnn.com/2025/02/21/c...
Trump bars federal scientists from working on pivotal global climate report | CNN
The Trump administration told US government scientists working on a vital global climate report to stop their work – the president’s latest move to withdraw the US from global climate action and resea...
edition.cnn.com

🚨Die von den USA finanzierte Leitung der Weltklimarat (IPCC) Arbeitsgruppe 3, die sich mit Klimaschutzstrategien beschäftigt, ist massiv unter Beschuss. Das hat dramatische Auswirkungen auf die wissenschaftliche Grundlage der Klimapolitik weltweit. Ein dunkelschwarzer Tag für die Klimaforschung.
‼️The US-based @ipcc.bsky.social technical support unit (TSU) for Working Group 3 Co-Chairs has been terminated, and the US won’t be attending next week’s IPCC meeting where the AR7 chapter outlines will be approved.

More by @afreedma.bsky.social here:
Scoop: U.S. delegation pulled from key U.N. climate science meeting
The IPCC meeting in China is slated to determine the content in the group's next series of reports.
www.axios.com

🚨 If confirmed, horrible news for science-based policy advice: The IPCC WG3 - which deals with strategies for reaching climate goals - about to get defunded.
‼️The US-based @ipcc.bsky.social technical support unit (TSU) for Working Group 3 Co-Chairs has been terminated, and the US won’t be attending next week’s IPCC meeting where the AR7 chapter outlines will be approved.

More by @afreedma.bsky.social here:
Scoop: U.S. delegation pulled from key U.N. climate science meeting
The IPCC meeting in China is slated to determine the content in the group's next series of reports.
www.axios.com
‼️The US-based @ipcc.bsky.social technical support unit (TSU) for Working Group 3 Co-Chairs has been terminated, and the US won’t be attending next week’s IPCC meeting where the AR7 chapter outlines will be approved.

More by @afreedma.bsky.social here:
Scoop: U.S. delegation pulled from key U.N. climate science meeting
The IPCC meeting in China is slated to determine the content in the group's next series of reports.
www.axios.com
Ist #Klimaschutz für die schlechte Wirtschaft verantwortlich? Nein, so PIKs @gunnarenergyclima.bsky.social: "Die Probleme der deutschen Wirtschaft sind von struktureller Natur und sie sind tieferliegend." Die Wirtschaft müsse die Chancen der "grünen Wende" aktiv annehmen.
www.dw.com/de/muss-deut...
Muss Deutschland zwischen Klima und Wirtschaft wählen? – DW – 17.02.2025
Im Wahlkampf zur vorgezogenen Bundestagswahl werden Stimmen laut, die den Klimaschutz im Namen von Wirtschaftsinteressen zurückdrehen wollen, obwohl Fachleute davor waren. Gibt es denn das eine nur oh...
www.dw.com

Reposted by Matthias Kalkuhl

Exciting job opportunity in our energy transition lab @pik-potsdam.bsky.social 👇
Job: Circularity & industry transformation

Do you want to learn about material flow analyses and modeling of transformation scenarios?

@pik-potsdam.bsky.social is a renowned institute with scientific and real-world impact - and a beautiful location near Berlin

All info here: tinyurl.com/24udxdkv

Reposted by Gunnar Luderer

Reposted by Gunnar Luderer

Job: Circularity & industry transformation

Do you want to learn about material flow analyses and modeling of transformation scenarios?

@pik-potsdam.bsky.social is a renowned institute with scientific and real-world impact - and a beautiful location near Berlin

All info here: tinyurl.com/24udxdkv

Sorry, but your electricity prices are just totally off. Households currently pay around 30 ct/kWh (see e.g. www.zeit.de/wirtschaft/e...), and for industry electricity demand it is much lower. If some consumers
still pay higher prices, it's a legacy effect from the gas crisis, not renewables.
Energiemonitor: Schafft Deutschland die Energiewende?
Wo gehen neue Windräder in Betrieb? Woher kommt der Strom? Reicht das Gas für den Winter? Der komplett überarbeitete ZEIT-ONLINE-Energiemonitor gibt Antworten.
www.zeit.de

Reposted by Gunnar Luderer

NEW – EU’s solar and wind growth pushes fossil-fuel power to lowest level in 40 years | @mollylempriere.carbonbrief.org

Read here: https://buff.ly/4hfcKhk
🚨New Paper and Policy Brief🚨

How has green hydrogen developed recently? How much hydrogen is needed for 1.5°C? And what are plausible future pathways?

In a new Nature Energy study, we look at these questions.

🔗Article: https://buff.ly/3WeOh3G
🔗Policy Brief: https://buff.ly/3C2F6wm

#EnergySky

Reposted by Gunnar Luderer

Germany's #Climate Action Law

National targets:
-Reduce GHG emissions by at least 65% by 2030 (over 1990)
-88% by 2040
-Net greenhouse gas neutrality by 2045
-Negative #emissions after 2050

factsheet update:
www.cleanenergywire.org/factsheets/g...

Das eigentliche Standortrisiko ist, jetzt mitten in der Klimaschutztransformation steckenzubleiben und die Märkte der Zuunft zu verlieren. "Kluge, vorwärtsgerichtete Klimapolitik ist eine Form der langfristigen Wohlstandssicherung."

Reposted by Gunnar Luderer

13/ 🎙️ If you prefer a (German) soundtrack instead of interactive images: @aroth.bsky.social and I, with the support of @andreasloeschel.bsky.social & @gunnarenergyclima.bsky.social , discussed the government's energy transition balance in detail in episode #26 of the @diw.de podcast #fossilfrei.
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

Reposted by Gunnar Luderer

1/ The German parliament was dissolved today after the failure of the "traffic light" government. What has the 🚦 achieved in terms of the energy transition? Here's a final update of the @diw.de #Ampelmonitor Energiewende in English! 🇩🇪 🔌↩️

Little 🧵 with a few graphs on key technologies 🔽
DIW Berlin: Ampel-Monitor Energiewende (Monitor of the German
BLOG Overview Note on the graphs Explanations on share of renewable energy in the electricity sector Why "traffic light"? Energy targets of the German government - and what has been achieved The…
www.diw.de

Latest German energy statistics allow an early peak on CO2 balance for 2024. Coal declines, but this along with changes in oil and gas use this will translate to a mere 15 MtCO2 decline relative to 2023 (own estimate). Germany needs twice as much, 30 MtCO2 per year, to reach its -65% goal in 2030.
#Renewables supplied 55% of electricity used in Germany in 2024

> #coal use down significantly
> almost no change for #natgas
> 1st full yr w/o #nuclear
> net power importer

www.cleanenergywire.org/factsheets/g... @janrosenow.bsky.social @drsimevans.carbonbrief.org @simone-peter.bsky.social

Reposted by Gunnar Luderer

#Renewables supplied 55% of electricity used in Germany in 2024

> #coal use down significantly
> almost no change for #natgas
> 1st full yr w/o #nuclear
> net power importer

www.cleanenergywire.org/factsheets/g... @janrosenow.bsky.social @drsimevans.carbonbrief.org @simone-peter.bsky.social