curl-able file upload with directory support. easy, fast and uses minimal resources. with cli tool that supports concurrent uploads. based on transfer.sh. github.com/morawskidotm... live instance: transfer.morawski.my (behind cloudflare)

Proprietary capacity expansion model from 1957 Used for modelling the Finnish transmission grid and extensions to it until the late 1970s; from Helsinki Museum of Technology. #freethemodels

Cripes. Lidl in Germany having a sale on plug and play batteries. €300 for 2.24 kWh! That is mind-bogglingly cheap. www.pv-magazine.com/2026/05/19/l...

Lidl launches 2.24 kWh battery in Germany for €299

The battery supports 1,000 W input and 800 W output, is compatible with most balcony PV systems, and can be optionally app-controlled via a dedicated app.

pv-magazine.com

Hello, World! Hello, Bluesky! PyPSA is now officially on Bluesky - it took a couple of years and a major version release, but we're finally here!

We’re often asked: Why are Chinese EVs so cheap? Comparing costs between Western and Chinese automakers in China shows that subsidies matter, but they’re only part of the story:

Why Are Chinese EVs So Cheap?

Chinese carmakers have lower cost structures, driven by tighter control over their supply chains and a stronger focus on the China market. This puts Western OEMs in a tough spot.

rhg.com

Solar and batteries are cheap enough that most people can get most of their electricity from them, and save money. This equation gets better and better over time as their costs decline. All details in a new blog post: nworbmot.org/blog/solar-b...

Now that more details are known about the three #V2G propositions (🇩🇪 BMW/E.ON, 🇫🇷 Mobilize/Renault/Mobility House, 🇬🇧 Octopus) currently available or announced in Europe, it is time to compare them. All three aim to enable the average user to drive for free with an annual mileage of 11,000–14,000 km

Jaap Burger@jaapburger.eu · 11mo ago

Let's compare this 'plug-in' bonus with Renault's in France. There, the yearly cap is €552, but this would require you to be plugged in 24/7. To reach BMW/E.ON’s annual cap of €720, you would need to be plugged in for a more realistic eight to nine hours per day.

New paper argues that we should not harm economic growth with climate policies because this growth helps with both adaptation and mitigation. osf.io/preprints/so... It leaves me agreeing and exasperated at the same time because... the best climate policies ALSO HELP economic growth. Let me explain

If you do any cost analysis or economics for energy then stop assuming 8% is your discount rate! Getting specific data on costs of capital was a nightmare, until now: www.nature.com/articles/s41...

Historical and future projected costs of capital for ten energy technologies across 176 countries - Scientific Data

Scientific Data - Historical and future projected costs of capital for ten energy technologies across 176 countries

nature.com

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...

We spent two months talking with RC alums and thinking deeply about how LLMs are changing programming and learning. Here’s what we learned, and how we're currently thinking about AI at RC: t.co/ddFj486ch8

Great overview of industrial electrification: challenges + current policy + opportunities for improvement Tiny critique: I would have liked more discussion on reaching cost parity in the long-term through learning, flexibility, finance, onsite solar, and optimal control. Maybe that's coming soon?

Jan Rosenow@janrosenow.bsky.social · last yr.

HOT OFF THE PRESS: Industrial electrification is vital for net-zero, but lagging far behind. While most of industrial process heat could be electrified with existing tech, progress has been minimal. Our new paper investigates why and how it can be changed. authors.elsevier.com/sd/article/S...

I'm trying to learn more about climate policy. One of the books that I read is Simon Sharpe's "Five times faster". It's pretty high-level, but more insightful than most books of its kind. This report, that he cowrote, contains many of the book's insights. It's systems thinking applied to climate.

Jan Rosenow@janrosenow.bsky.social · last yr.

🚨 NEW RESEARCH: The energy transition is more disruptive—and could move much faster—than most people think. It’s not just about swapping old tech for new. Shift to clean energy is a complex web of feedback loops, tipping points & surprises. Our new 📖 👇 www.scurveeconomics.org/publications... 🧵

As the hydrogen bubble deflates, what are the alternatives? We present a "minimal methanol economy": using methanol as a gap-filler for the few sectors electrification can't reach. New working paper together with Philipp Glaum, @fneum.bsky.social, @millinger.bsky.social: arxiv.org/abs/2505.09277