Cauldron Ferm has turned microbes into nonstop assembly lines

The Australian startup says it has solved one of the biggest challenges facing synthetic biology companies, which it counts as customers.

Sam Altman-backed fusion startup Helion in talks with OpenAI

Helion is reportedly negotiating a deal that would see it sell 12.5% of its power output to OpenAI.

How fusion power works and the startups pursuing it

Fusion power promises to generate large amounts of clean electricity from nearly limitless fuel. This article explains the main approaches and the companies that use them.

The best AI investment might be in energy tech

Power has become one of the biggest bottlenecks in rolling out new AI data centers. That’s creating an opening for investors.

Geothermal startup Fervo catapults itself over the ‘valley of death’

Fervo landed a large new loan with terms that strongly suggest the company’s most turbulent days are behind it.

TechCrunch Startup Battlefield 200 nominations are still open

Nominate your startup, or one you know, for TechCrunch Startup Battlefield 200 before May 27. Chance to win $100,000 equity-free funding and VC access.

Inside a $1.1B deal to reshore critical minerals refining

Critical minerals startup Nth Cycle is betting that its modular approach to nickel refining can make the practice viable in the U.S. and Europe.

Google’s data center power playbook comes into focus

Google has long procured clean power for its operations and data centers, but recent deals show the company is changing tactics.

H&M wants to make clothing from CO2 using this startup’s tech

Rubi has developed an enzymatic process to turn carbon dioxide into cellulose that’s ready to be spun into lyocell or viscose.

Samsung bets this island startup can tame the grid with software and batteries

GridBeyond’s hardware and software coordinates several gigawatts of supply and demand to help balance the flow of electricity on the grid. The idea has attracted investors like Samsung Ventures.