Panthalassa · 2026-05-05 · major
Panthalassa — $140M Series B Led by Peter Thiel for Wave-Powered Floating AI Data Centers
Portland public-benefit corporation Panthalassa raised $140M Series B led by Peter Thiel to manufacture 85-meter wave-powered nodes that run AI inference at sea. Ocean-3 pilot in the North Pacific in 2026, commercial deployment in 2027.
Wave-powered, seawater-cooled, Starlink-uplinked floating AI compute nodes get $140M to leave the lab.
Key specs
| Raise | $140M Series B |
|---|---|
| Valuation | ~$1B |
| Node diameter | 85 meters |
| Pilot fleet | Ocean-3 |
| Commercial target | 2,027 |
What is it?
Panthalassa is a Portland, Oregon public-benefit corporation building autonomous 85-meter steel nodes that drift on the open ocean, generate electricity from wave turbines, and run AI inference workloads onboard. The Series B funds manufacturing and the Ocean-3 pilot fleet, slated for the North Pacific later in 2026.
How does it work?
Each node converts wave motion into electricity that powers AI accelerators inside the hull. Surrounding seawater provides 'free supercooling' that lengthens chip lifetimes and removes the freshwater bottleneck that plagues land-based data centers. Hull shape steers the node to remote waters with no engines, and inference results stream to shore over Starlink.
Why does it matter?
Land-based AI data centers face multi-year transmission and water-cooling constraints. Panthalassa's bet is that the open ocean has effectively unlimited wave energy, free seawater cooling, no land use, and no NIMBY review. Co-investors include John Doerr, Marc Benioff's TIME Ventures, Max Levchin's SciFi Ventures, Hanwha Group, Supermicro, and Dylan Field.
Who is it for?
AI infrastructure planners, data-center operators, climate-tech investors
Try it
https://panthalassa.com/