Jan Rosenow's newsletter on the energy transition. Oxford Professor. Energy policy advisor. Energy transition optimist. Cutting through the noise to show how the clean energy future is possible.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
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| Issues | 29 | Founded | 6 months ago | Last Issue | 33 hours ago |
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janrosenow.substack.comLatest Issues
The solar boom outrunning the grid
In the summer of 2025, solar became Pakistan’s single largest source of electricity, generating around a quarter of the country’s power during peak months. A decade earlier, solar was contributing less than 1 percent to electricity generati...
What is an electrostate?
Bahrain runs more of its economy on electricity than the United States does. China still made almost sixty per cent of its electricity from fossil fuels in 2025. Norway’s wealth rests on exporting oil and gas. Pakistan electrified largely b...
The problem with "just build solar and batteries"
“Just build solar and batteries!” I read a version of this every week on social media. It usually it comes from someone who means very well. The problem with such statements is that they promise a simple solution which does not exist to a p...
Thermal batteries aren’t coming. They’re already here.
For years, electro-thermal energy storage (ETES) was studied in academic papers and tested in pilot projects. That is now over and ETES is finally moving from pilot stage to commercialisation.
In this Bright Spots edition I look at what th...
What happens when 90% of Europe has air con?
Much of Europe never had to think about keeping cool. Summers simply didn’t get hot enough for extended periods, except in southern regions that have adapted to hot weather over centuries. While in warmer countries such as Spain around 40%...
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Oxford Professor. Energy policy advisor. Energy transition optimist. Cutting through the noise to show how the clean energy future is possible.
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