Flywheel Journal

Latest Articles

Points of view on startups, innovation, and the clean energy transition — what’s happening now, and what it means for what comes next.

March 12, 2025

The Grid Is the Bottleneck

We can build solar and wind faster than ever. Connecting it to the grid is another story. Interconnection queues, not generation, now decide how fast the transition moves.

energy transition

climate tech

February 28, 2025

Why Hard Tech Is Having a Moment

After a decade of software eating the world, capital is flowing back to atoms — batteries, reactors, and materials. A look at what changed, and which founders are positioned to win.

startups

innovation

February 6, 2025

The Case for Boring Batteries

The most important storage breakthroughs won’t be exotic chemistries. They’ll be cheap, iron-based, and unglamorous — and that’s exactly why they’ll scale.

climate tech

energy transition

January 20, 2025

What the Next AI Wave Owes to Energy

Compute is now a power problem. The companies that solve for cheap, clean electrons will quietly shape which AI ambitions are even possible over the next decade.

innovation

energy transition

January 3, 2025

Founders vs. the Permitting Machine

The hardest part of building physical climate infrastructure isn’t the technology — it’s the paperwork. A field guide to the startups treating permitting as a product.

startups

climate tech

December 15, 2024

The Quiet Return of Nuclear

Small modular reactors have been ten years away for thirty years. Something is different this time — and it has more to do with demand curves than reactor design.

energy transition

innovation