Letzte Woche hatte ich die wunderbare Gelegenheit, im fossilfrei-Podcast von @wpschill.bsky.social & @aroth.bsky.social unsere Studie zum 2040-Klimaziel der EU zu diskutieren (@natcomms.nature.com ) www.nature.com/articles/s41... @pik-potsdam.bsky.social @diw.de

The steel sector is responsible for a huge chunk of global CO2 emissions, eating up 20% of the carbon budget for 1.7°C under current trends. The good news: Most of these emissions can be abated at moderate costs of $100-150/tCO2. Have a look at our new paper out in Nature Climate Change today!

⚙️New paper out in Nature Climate Change! Coal-based steel plants operate for decades, and continued investments in new and existing capacity risk locking in emissions well into the 2060s. But we show that there is still a narrow window to act. 🔗 www.nature.com/articles/s41...

🚨 New paper: Coupling integrated assessment and energy system models 🚨 Planning future energy systems requires bridging two fundamentally different scales: long-term transformation pathways spanning decades, and short-term power system operations unfolding hour by hour. #EnergySky #PyPSA 🧵

1/ Published today in @natcomms.nature.com: our analysis on long-duration electricity storage needs for coping with #Dunkelflaute events in 🇪🇺 . Joint work with my stellar @diw.de colleagues @kittelmartin.bsky.social (lead) and @aroth.bsky.social 🎉https://www.nature.com/articles/s41467-026-72681-5

🎉 What a timing! Right before the #AccelerateEU comm proposing an electrification target came out, our new study was published in Nature Communications, showing that electrification is not just an option—it’s at the core for the EU to meet its 2040 climate targets! www.nature.com/articles/s41...

Nachhaltige Biomasse aus Abfällen und Reststoffen ist weltweit fundamental begrenzt. Statt ihre Nutzung im Gebäudesektor weiter anzureizen, sollte sie landen, wo kohlenstoffhaltige Moleküle unverzichtbar sind: in der Chemie sowie im Schiffs- und Flugverkehr. Mehr hier: nworbmot.org/blog/biomass...

🚨 New paper: Coupling integrated assessment and energy system models 🚨 Planning future energy systems requires bridging two fundamentally different scales: long-term transformation pathways spanning decades, and short-term power system operations unfolding hour by hour. #EnergySky #PyPSA 🧵

🔥HOT OFF THE PRESS: Why the energy transition is disruptive, non-linear, hard to predict and often faster than expected. Our paper in Nature Reviews Clean Technology shows how feedback loops create virtuous and vicious cycles that can accelerate or block change. 🧵 www.nature.com/articles/s44...

Do you like charts? Oh yes you do. I've just published hundreds of them, as I do every year. www.nathanielbullard.com/presentations

🚨 Update: What's the state of the green hydrogen market ramp-up? 📄 Today, one year ago, we published "The green hydrogen ambition and implementation gap" in Nature Energy (doi.org/10.1038/s415...). We found that in 2023, only 7% of announced electrolysis capacity was realised on time. #EnergySky

What's needed to completely phase out all fossil fuels in the EU? Have a look at our most recent paper!

Our new study an EU #fossil #phase-out is out in @natcomms.nature.com. www.nature.com/articles/s41... Afaik, this is the first #IAM study investigating a complete fossil phase-out. How much do we need to reduce fossils for the EU 2050 goal? And would even a full fossil phase-out be possible?

🆕 Cost-effective #climate #mitigation would reduce fossil fuel consumption in the EU by around 90 percent by 2050, compared to 2020. Rapid expansion of renewable energy and widespread electrification are key drivers of this shift, researchers show. ⬇️ www.pik-potsdam.de/en/news/late... #NetZero2050

Since everyone is busy "resetting", here is a more focused plea: let's manage our sustainable biomass better. People get nervous around biomass (it's complicated!) but high costs for green hydrogen and direct air capture mean we need to take a closer look. Blog: nworbmot.org/blog/biomass...

Wasserstoff als Energieträger wird eine große Zukunft haben, aber nicht für motorisierten Individualverkehr. Das steht völlig außer Streit, alle Leute, die sich in dem Bereich auskennen, sagen das seit Jahren. Jetzt Autofirmen zu fördern, damit sie Wasserstoffautos bauen, ist verrückt.

Cool new study on rescuing 1.5°C with the REMIND model (or so).

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 🧵

PyPSA v1.0 is officially here - 10 years and 2 days since the first git commit. This milestone release brings major new features, completely new documentation, and a fresh landing page - congratulations to all the PyPSA team! 🎉 🔗 New Documentation: docs.pypsa.org 🔗 New Landing Page: pypsa.org

1/ Wochenlang haben alle auf den Monitoringbericht zum Stand der Energiewende und die Schlussfolgerungen des Wirtschaftsministeriums gewartet. Nun sind die Dokumente da - aber sind wir jetzt so viel schlauer als vorher? 🧵

when the FT revealed in January that the cost of building the Sizewell C nuclear plant had risen to around £40bn they all denied it now we can reveal the actual price tag - to be announced this week - and it is £38bn www.ft.com/content/d431...

@nworbmot.bsky.social is doing really important stuff again, simulating how methanol (instead of hydrogen) could be the fuel to power a system otherwise mainly running on solar, wind and batteries. SUPER interesting paper. arxiv.org/html/2505.09...

1/🎙️ Wie wird Deutschland klimaneutral, und was wird uns das kosten? Einige Antworten auf diese großen Fragen gibt es in der heute veröffentlichten Folge #32 von fossilfrei, dem Energiewende-Podcast des @diw.de Berlin.

⚡ 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

✈️🚢🧪For Europe's green fuels for aviation, shipping, and chemicals: Should we pipeline H₂ to industrial CO₂ capture sites, or CO₂ to regions with better renewable resources for H₂ production? 📖 See our new study in @natureenergy.bsky.social on future carbon management: www.nature.com/articles/s41...

#Ariadne-Report kalkuliert Pfade zur #Klimaneutralität 2045 in Deutschland: Der Zusatzaufwand der #Transformation lässt sich durch kosteneffizienten #Klimaschutz je nach Szenario auf jahresdurchschnittlich 16 - 26 Mrd. Euro bis 2045 begrenzen, 0,4 - 0,7 Prozent der heutigen #Wirtschaftsleistung.

How should we choose which societal factors to include in #energy #models? And do societal factors make the models really better? Some evidence: www.nature.com/articles/s41... by V. Fisch-Romito, M. Jaxa Rozen and X.Wen @natureenergy.bsky.social @unigeenergy.bsky.social @snsf-ch.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

🚀🚀🚀𝐄𝐱𝐜𝐢𝐭𝐢𝐧𝐠 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐎𝐩𝐩𝐨𝐫𝐭𝐮𝐧𝐢𝐭𝐲! Our partner @pik-potsdam.bsky.social is offering a new research position to model circularity and industry transformation scenarios - with a focus on the #chemical sector (mostly plastics). More info:🔗https://tinyurl.com/24udxdkv #transience #industry4netzero

‼️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:

Please enjoy this hydrogen fuel cell bicycle in Shell's energy scenarios report (from 2001) www.shell.com/news-and-ins...

ICYMI (esp. new followers): Two weeks ago @falkoueckerdt.bsky.social and I published an Article (+Policy Brief) on the past setbacks and future challenges of green hydrogen in @natureenergy.bsky.social. Questions? Get in touch! 🔗Paper: doi.org/10.1038/s415... 🔗Policy Brief: doi.org/10.1038/s415...

🚨 New Research! Can heat pumps be cheaper than gas boilers? Our study shows how. 🔹 Cost parity at SCOP 3.3 in UK 🔹 Shifting ⚡levies to taxation lowers costs 🔹 Moving levies to gas even more 🔹 Time-of-use tariffs unlock savings Full paper: www.sciencedirect.com/science/arti... 🧵 THREAD ⬇️

⏳⚡🌍 How do we scale advanced energy technologies before it’s too late? New Joule commentary by @nworbmot.bsky.social @devonswezey.bsky.social @jessejenkins.bsky.social & me shows how companies doing 24/7 carbon-free energy matching accelerate energy transition for everyone doi.org/10.1016/j.jo...

"What do you think about hydrogen-ready boilers?" I was asked by tagesschau.bsky.social My response: "If I have a garage, I can also say it's ‘Ferrari-ready’. I could park a very expensive sports car in there. Hardly anyone does that because it's too expensive." www.tagesschau.de/wissen/klima...

ICYMI (esp. new followers): Two weeks ago @falkoueckerdt.bsky.social and I published an Article (+Policy Brief) on the past setbacks and future challenges of green hydrogen in @natureenergy.bsky.social. Questions? Get in touch! 🔗Paper: doi.org/10.1038/s415... 🔗Policy Brief: doi.org/10.1038/s415...

Cool new study looking at near-optimal solutions for biomass in a future European energy system. Biomass is particularly valuable for providing carbon, less so for energy. Also some interesting points on IAMs in comparison to detailed energy system models like PyPSA.

🟢 Crucial intervention on #GreenHydrogen policy from @adrianodenweller.bsky.social and @falkoueckerdt.bsky.social from @pik-potsdam.bsky.social last week. Read on for key takeaways from the SASHA Coalition (www.sashacoalition.org), facilitated by OG, below.👇 🧵1/5 #GreenSky #ClimateSky #EnergySky

A new study from @adrianodenweller.bsky.social and @falkoueckerdt.bsky.social quantifies the green hydrogen ambition and implementation gap, finding that meeting expectations will remain challenging and costly. https://bit.ly/40mppIh

🚨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

An adjusted strategy is needed to ground green hydrogen expectations in reality. #PolicyBrief from @adrianodenweller.bsky.social Falko Ueckerdt https://bit.ly/4jxhLUu

Have you already had a look at these European energy experts? Would be great to have a thriving #EnergySky here! If you think this pack is useful, please repost. go.bsky.app/PvYmi78 Suggestions still welcome, too.

A 100% must-read for everyone that has ANY stakes in hydrogen. Frankly, the H2 ramp-up is not going great right now globally, and Adrian and Falko have the numbers. I think we are reaching a phase of honesty, where we have to turn the popping bubble of over-expectations into something productive.

NEW RESEARCH: Green hydrogen production has lagged behind expectations in the past and future ambitions are likely not to be achieved shows new research. Paper by @adrianodenweller.bsky.social @falkoueckerdt.bsky.social @pik-potsdam.bsky.social www.nature.com/articles/s41...

An adjusted strategy is needed to ground green hydrogen expectations in reality. #PolicyBrief from @adrianodenweller.bsky.social Falko Ueckerdt https://bit.ly/3Ccvq2e

While over 60 countries have outlined strategies to boost #hydrogen production, less than 10% of the promised green hydrogen was produced in 2023, a 🆕 study shows. PIK scientists analysed 1,232 global hydrogen projects and found a significant competitiveness gap: www.pik-potsdam.de/en/news/late...

Robust political strategy based on realistic expectations for #hydrogen production needed as demand for the gas remains low - @pik-potsdam.bsky.social#hydrogenreport Gap between project announcements and implementation

A new study from @adrianodenweller.bsky.social and Falko Ueckerdt quantifies the green hydrogen ambition and implementation gap, finding that meeting expectations will remain challenging and costly. https://bit.ly/3DVfiCV

⁉️Webinar: Green #hydrogen - Big gaps between ambition & implementation 🗓️Today, 3:00PM CET 🧑‍🤝‍🧑PIK scientists @adrianodenweller.bsky.social and @falkoueckerdt.bsky.social ➡️ Link to the webinar in English: pik-potsdam.zoom.us/j/61313630324

Danke für den Kommentar zu unserem Artikel @taz.de. Da der Link im Text nicht an die richtige Stelle führt, hier nochmal: 🔗Artikel: doi.org/10.1038/s415... 🔗Policy Brief: doi.org/10.1038/s415...