# Ocean-3 (DD-022)

> Ocean-3 is Panthalassa's series of wave-powered, floating AI computing nodes. Each one is an 85 m plate-steel structure shaped like a golf ball on a tee. As it bobs, seawater is driven up an internal tube to spin a turbine, which powers onboard GPUs. The nodes have no anchor and no power cable. They steer themselves, and they send results to shore by satellite. Pilot units were planned for the northern Pacific in 2026, with commercial deployments targeted for 2027.

- Department: Tech
- First published: 2026-08-25
- Last updated: 2026-08-25
- Permalink: https://detailenjoyer.com/case/ocean-3/
- Author: Marcus Easterling (DetailEnjoyer), The Detail Department

## On the timeline

- **2021**: Panthalassa's Ocean-1 prototype
- **2024**: Ocean-2 and Wavehopper prototypes prove power, propulsion and computing at sea
- **May 4, 2026**: Panthalassa announces a $140 million Series B led by Peter Thiel
- **2026**: Ocean-3 pilot series planned for the northern Pacific (planned)
- **2027**: Commercial deployments targeted (planned)

Full timeline: https://detailenjoyer.com/timeline/?case=ocean-3

## Quick facts

- **DD-022-F01**: Panthalassa's Ocean-3 nodes are 85 m steel floating data centers that make their own power from waves and send AI results to shore by satellite. _(Write-up · Exhibit A (A data center that floats))_
- **DD-022-F02**: Ocean-3 nodes have no anchor and no shore cable. They are self-propelled, and their CEO compares them to a giant Roomba. _(Write-up · Exhibit D (No anchor, no cable))_

## Write-up

This giant steel ball is an AI data center powered by waves. Panthalassa's Ocean-3: about 85 m tall, no anchor, no cable to shore.

1. **A data center that floats**: Ocean-3 is Panthalassa's series of autonomous nodes. They are designed to run AI inference computing at sea, powered by electricity they make from ocean waves.
2. **About 85 meters of steel**: Each node is about 85 m tall and made of plate steel, close to the height of Big Ben. New Scientist describes it as shaped like 'a golf ball sitting on a tee'.
3. **How the waves make power**: The 'tee' is a long tube open at the bottom. As waves lift and drop the node, seawater is pushed up the tube into the hollow, air-filled sphere, where it spins turbines. That electricity runs the onboard GPUs and satellite equipment.
4. **No anchor, no cable**: The nodes are self-propelled and aren't tethered to the seabed or connected to shore by a cable. They get towed out and then propel themselves to their station. CEO Garth Sheldon-Coulson calls it 'like a little Roomba, except it's enormous'.
5. **Answers by satellite**: Instead of sending power to shore, each node computes on board and sends its results (inference tokens) to customers by satellite link.
6. **$140 million from Thiel and others**: On May 4, 2026, Panthalassa announced a $140 million Series B led by Peter Thiel. The money will finish a pilot factory near Portland, Oregon, and speed up Ocean-3 deployment.
7. **Prototypes first, pilots next**: Earlier prototypes (Ocean-1 in 2021, then Ocean-2 and Wavehopper in 2024) proved power generation, propulsion and computing at sea. The Ocean-3 pilot series was planned for the northern Pacific in 2026, with commercial deployments targeted for 2027.

## Related case files

- [Data Centers (DD-029)](https://detailenjoyer.com/case/data-centers/): A wave-powered floating AI data center.
- [Guizhou Solar (DD-032)](https://detailenjoyer.com/case/guizhou-solar/): Renewable power in an unusual place (waves).
- [Offshore Oil (DD-033)](https://detailenjoyer.com/case/offshore-oil/): Another engineering structure built to work far offshore.
- [Airborne Wind Turbines (DD-050)](https://detailenjoyer.com/case/airborne-wind-turbines/): Another unconventional renewable generator.

## Reel vs. record

- **Timing caveat**: the Reel describes Ocean-3 as if it's already running. In reporting through Aug 2026, the Ocean-3 pilots were still planned for the northern Pacific in 2026, with commercial deployments targeted for 2027. I couldn't confirm that a node has processed AI workloads offshore yet. [Panthalassa press release; Ars Technica; Fast Company]
- **Minor**: '85-meter-tall' matches most outlets. Ars Technica (citing the FT) says 'about 85 meters in length'. It's the same figure for the vertical node. [Ars Technica; New Scientist; Latitude Media]
- **Minor**: sources describe 'an internal turbine' (DCD, Latitude) or 'turbines' (New Scientist). The Reel's 'across turbines' is fine.

## Video: Ocean-3: This Giant Steel Ball Is an AI Data Center Powered by Waves

- Duration: 24.2 s · Published: 2026-08-25
- File: https://detailenjoyer.com/assets/videos/DceSk0uRNqx.mp4

### Transcript

DID YOU KNOW? Panthalassa's Ocean-3 is a radically different approach to building AI data centers. As the roughly 85-meter-tall steel node rises and falls with the waves, water is forced through an internal system and across turbines, generating electricity for onboard AI hardware. The platform is untethered and self-propelled, AI workloads are processed offshore and the results can be transmitted back to land by satellite. NOW YOU KNOW!

## Questions & answers

**Q: Roughly how tall is a Panthalassa Ocean-3 node?**  
A: Each node is about 85 m of plate steel, close to the height of Big Ben. _(Source: Write-up · Exhibit B (About 85 meters of steel) · Can floating data centres meet AI's huge energy demand? (New Scientist); Building inference data centers on the high seas (Latitude Media, Catalyst podcast with CEO Garth Sheldon-Coulson); Silicon Valley bets $200M on AI data centers floating in the ocean (Ars Technica, May 5, 2026))_

**Q: How does Ocean-3 make its electricity?**  
A: As waves lift and drop the node, seawater is driven up the tube into the sphere, where it spins turbines. _(Source: Write-up · Exhibit C (How the waves make power) · Can floating data centres meet AI's huge energy demand? (New Scientist); Silicon Valley bets $200M on AI data centers floating in the ocean (Ars Technica, May 5, 2026); Panthalassa unveils wave-powered floating data center platform (DCD, May 1, 2026))_

**Q: How do Ocean-3 nodes send their AI results back to customers?**  
A: The nodes compute on board and beam their results to shore by satellite. _(Source: Write-up · Exhibit E (Answers by satellite) · Silicon Valley bets $200M on AI data centers floating in the ocean (Ars Technica, May 5, 2026); Panthalassa unveils wave-powered floating data center platform (DCD, May 1, 2026); Using the ocean to power data centers (CBS News))_

**Q: Who led Panthalassa's $140 million Series B in May 2026?**  
A: The May 4, 2026 Series B was led by Peter Thiel. _(Source: Write-up · Exhibit F ($140 million from Thiel and others) · Panthalassa Raises $140 Million to Power AI at Sea (Panthalassa press release, PR Newswire, May 4, 2026); Silicon Valley bets $200M on AI data centers floating in the ocean (Ars Technica, May 5, 2026))_

**Q: When were Ocean-3's commercial deployments targeted to begin?**  
A: Ocean-3 pilots were planned for 2026, ahead of commercial deployments in 2027. _(Source: Write-up · Exhibit G (Prototypes first, pilots next) · Panthalassa Raises $140 Million to Power AI at Sea (Panthalassa press release, PR Newswire, May 4, 2026); Silicon Valley bets $200M on AI data centers floating in the ocean (Ars Technica, May 5, 2026); Building inference data centers on the high seas (Latitude Media, Catalyst podcast with CEO Garth Sheldon-Coulson))_

## Sources

- [Panthalassa Raises $140 Million to Power AI at Sea (Panthalassa press release, PR Newswire, May 4, 2026)](https://www.prnewswire.com/news-releases/panthalassa-raises-140-million-to-power-ai-at-sea-302761078.html)
- [Silicon Valley bets $200M on AI data centers floating in the ocean (Ars Technica, May 5, 2026)](https://arstechnica.com/ai/2026/05/silicon-valley-bets-on-floating-ai-data-centers-powered-by-ocean-waves/)
- [Panthalassa unveils wave-powered floating data center platform (DCD, May 1, 2026)](https://www.datacenterdynamics.com/en/news/panthalassa-unveils-wave-powered-floating-data-center-platform/)
- [Can floating data centres meet AI's huge energy demand? (New Scientist)](https://www.newscientist.com/article/2526029-can-floating-data-centres-meet-ais-huge-energy-demand/)
- [Using the ocean to power data centers (CBS News)](https://www.cbsnews.com/news/using-wave-energy-to-power-sea-based-ai-data-centers/)
- [Building inference data centers on the high seas (Latitude Media, Catalyst podcast with CEO Garth Sheldon-Coulson)](https://www.latitudemedia.com/news/catalyst-building-inference-data-centers-on-the-high-seas/)
- [The data center backlash is sending AI infrastructure to some unexpected places (Fast Company, Aug 19, 2026)](https://www.fastcompany.com/91590558/the-push-to-put-data-centers-anywhere-but-land)

## Cite this case file

Easterling, Marcus. "Ocean-3." The Detail Department (DetailEnjoyer), case file DD-022, last updated Aug 25, 2026. https://detailenjoyer.com/case/ocean-3/