- Panthalassa’s valuation now sits near $1 billion after fresh funding
- Peter Thiel led a $140 million investment round into the ocean tech company
- Investors see ocean energy as a vast, untapped computing resource
A US-based ocean technology company, Panthalassa, is advancing its plan to relocate data processing into open waters, backed by fresh funding that places its valuation near $1 billion.
The start-up has spent ten years developing wave energy technology and is now backed by PayPal co-founder and early Facebook investor Peter Thiel, who led a $140 million investment round into the company.
“We’re now ready to build factories, deploy fleets, and provide a sustainable new source of energy for humanity,” said Garth Sheldon-Coulson, co-founder and CEO of Panthalassa.
Bypassing the grid by going offshore
Panthalassa’s idea connects two pressures which rarely meet directly — rising demand for AI computing and limits on land-based energy systems.
By placing both energy generation and computation offshore, the company argues it can bypass grid constraints and cooling challenges.
The plan is to use the bobbing motion of waves to force water through a turbine, generating electricity to power AI chips directly at sea.
The company houses this entire system inside what it calls a node, an 85-metre-long solid steel structure that sits mostly below the ocean surface.
A hermetically sealed container inside holds the AI server, which is cooled by the surrounding seawater.
The vessels can drive themselves to their destination using the shape of their hull, requiring no engine or fuel.
Unlike other ocean energy projects, Panthalassa will never transmit electricity back to land – instead, AI chips on board will receive user queries via SpaceX’s Starlink satellite connection and send inference tokens back the same way.
Terawatts of untapped energy
“There are three sources of energy on the planet with tens of terawatts of new capacity potential: solar, nuclear, and the open ocean,” Sheldon-Coulson said.
Waves are created by wind, and wind is created by heat from the sun. That means waves are essentially twice concentrated sunlight that keeps moving even when the wind stops.
The company’s nodes have no hinges, flaps, or gearboxes that could break down in hostile ocean conditions, making them easier to manufacture at scale.
They use only earth-abundant materials like steel, with robust supply chains that support rapid deployment – a huge opportunity for data center development.
The scale of this opportunity has attracted attention from some of Silicon Valley’s most prominent investors.
“The future demands more compute than we can imagine,” said Peter Thiel. “Extra-terrestrial solutions are no longer science fiction. Panthalassa has opened the ocean frontier.”
John Doerr, an early investor in Google and Amazon, called Panthalassa’s system a game changer in “addressing global energy needs and clean power generation”.
“It is a triple win: workers benefit, communities benefit, and we gain a strategic asset that strengthens American technological leadership,” Doerr added.
Panthalassa plans to deploy its Ocean-3 pilot nodes in the northern Pacific Ocean sometime this year, with commercial deployments targeted for 2027.
The company has demonstrated its capabilities with Ocean-1, Ocean-2, and Wavehopper prototypes in 2021 and 2024.
However, scaling from prototypes to a commercial fleet of hundreds or thousands of nodes is a completely different challenge.
The ocean is unforgiving, and maintaining floating data centers in remote waters far from any port will require logistics that no company has ever managed before.
Saltwater corrosion, biofouling, and storm damage are not theoretical problems for marine equipment – they are daily realities that have sunk many promising ocean energy ventures before this one.
Thiel’s money buys time and manufacturing capacity, but it does not buy immunity from the laws of physics or the hostility of the sea.
Unlike projects that sink sealed containers to the ocean floor or launch server racks into orbit, these floating nodes must first survive the unpredictable surface of the open ocean before delivering any compute value.
Via Financial Times
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