- Panthalassa Ocean-3 generates power and processes AI workloads directly at sea
- Ocean movement replaces fossil fuels as primary energy source
- No cables, no anchors, just autonomous systems riding constant waves
Washington state startup Panthalassa builds self-propelled floating platforms that generate electricity from ocean waves and use it to power AI data centers at sea.
The platform, called Ocean-3, is equipped with devices without anchor, without fuel and without cables connecting them to the shore.
Each platform rises and falls with the waves, forcing water through an internal turbine to generate electricity.
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The generated energy then powers onboard computing hardware that processes the AI tasks on site, with the results sent back via satellite.
“The ocean is truly limitless in terms of the amount of energy available,” said Garth Sheldon-Coulson, CEO and co-founder of Panthalassa. “It really will be the cheapest energy on the planet.”
The Ocean-3 functions more like a floating hydroelectric dam. When waves lift the platform, water in a tube is pushed upward into a ballast tank.
This water then flows through a rotating turbine which produces electricity. The system is self-propelled and moves like a large Roomba rather than being tethered to the ocean floor.
Multiple units deployed together can operate as a single floating data center, with no carbon emissions and no strain on local power grids.
“When you deploy multiple of our systems, they work together like a data center,” Sheldon-Coulson said. “So we see it as a very good alternative to terrestrial data centers.”
Due to high electricity consumption, which increases carbon emissions and household utility bills, the industry is looking for an alternative to land-based AI data centers.
There have been discussions about underwater data centers as well as data centers in space, but none of these appear to be near-term projects.
As demand for computing increases and traditional power grids collapse, Panthalassa offers an alternative that bypasses land acquisition and reliance on fossil fuels.
Construction of the Ocean-3 units is already underway and Sheldon-Coulson expects them to be operational offshore by August this year.
The company hopes to eventually deploy thousands of these platforms offshore.
Funding is not a problem, but will it withstand a roaring ocean?
Panthalassa has all the private funding it needs as AI companies look for faster, cleaner ways to get electricity than building data centers on land.
“It’s really exciting that we’re working on something that’s coming at the right time,” Sheldon-Coulson said, “in a way that’s much cleaner, much more sustainable and quite scalable.”
Even if the concept is elegant, there remains one uncertainty: the ocean. He has a way of breaking things that work perfectly in testing.
Saltwater corrosion, biofouling, and storm damage are not hypothetical problems for marine equipment; these are daily realities.
The Ocean-3 platforms will need to survive hurricanes, salt spray and years of continuous movement without mechanical failure.
Satellite links also introduce latency that may not be suitable for all AI workloads, and the cost of repairing a broken generator in the middle of the ocean will be enormous.
Panthalassa has proven that wave energy can power a floating platform, but proving that it can do so reliably for years is a much more difficult challenge.
Yet for an industry desperate for energy and willing to try almost anything, the ocean offers something no land-based data center can match: limitless space and a power source that never stops moving.
Via CBS News
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