The military has always been the earliest adopter of new tech. Dirk Singer noted that today it’s also one of the biggest investors in e-fuels — not for climate goals, but for energy security. Like solar panels in the 1990s, disruption often starts on the battlefield.

I spoke with a European founder developing his own battery cells. Just getting permits for the mixing and coating stages pushed his...

I’ve seen this before—in Russia. Decisions made not for policy, not for strategy, but for unchecked power. Now I see this playing out in...

Robotaxi reality check

Airbus showed Europe can beat giants like Boeing through distributed collaboration. Could batteries follow the same path—moving from vertically integrated gigafactories to networks of “partners in success”?

I stumbled across Martin Gallardo’s post and decided that it would be worthwhile to rewrite my comment into a full post. The consulting...

This was my second Battery Day in the Netherlands. Last year I came for the first time and was surprised at how much battery innovation...

Crossing one valley of death is hard enough for any startup. For aviation startups, there are three!

A surprising revival of boring business amid the tech hype

Climate VC funding fell more than 3x from its peak in 2021

Michael Liebreich’s recent provocation on the Pragmatic Climate Reset raises many important points. One that stood out to me is that the climate movement has lost credibility by clinging to maximalist narratives while failing to deliver practical benefits. This inspired me to reflect on my own journey — ten years in climate tech yet still facing the gap between professional work and personal choices.

A short comparison of LDES technologies

Over the years, I’ve distilled some patterns into a five-step framework for finding your clients—tailored to the realities of FOAK and climate tech.

How to build a supply chain for your FOAK

The lessons of Natron Energy collapse

In the end, it had to be a political decision. After half a year of sifting through more than twenty locations and countless meetings...

Cleantech startups usually sell to mature industries, and these don't like new stuff. How can founders overcome change inertia? Ports, especially municipally owned ones, are notorious for resisting any change to how they operate. Here is a story from Polina Vasilenko on how to sell floating solar to municipal ports.

Latest data on clean energy VC investments. Are we seen new bubble emerging?

What is the future of electric mobility?

Alternative business model for a battery factory