Why This Matters
As artificial intelligence spreads through everyday services, the data centers that run those systems are using far more electricity. Many of those facilities still rely heavily on fossil fuels, adding to climate-warming emissions and, in some regions, putting new strain on local power grids and electric bills.
A company called Panthalassa, based in Vancouver, Washington, is betting that the ocean itself can help solve both problems. Its pitch: floating, wave-powered data centers that sit far offshore, generate their own clean energy, and beam results back to land by satellite instead of drawing on local power lines.
Marine energy, which includes power from waves and tides, has long been seen by U.S. energy officials as a large but mostly untapped resource. If companies such as Panthalassa can turn that potential into reliable power, it could open a new path to managing the rapid growth in digital computing without matching the growth in emissions.
Key Facts and Quotes
Panthalassa’s CEO and co-founder, Garth Sheldon-Coulson, described the ocean as “really unlimited in terms of how much energy is available,” adding that “it will really be the cheapest energy on the planet,” according to an interview aired on CBS. The company has been testing a device called the Ocean-2, which it likens to a floating hydroelectric dam.
As Ocean-2 rises and falls with the waves, water inside a tube is forced upward into a chamber. From there, the water is pushed through a turbine, which spins and produces electricity. That power is used on the spot, rather than being sent to shore, to run computing hardware housed within or alongside the floating system.
Panthalassa’s next model, Ocean-3, is designed to be self-propelled and untethered, with no anchor and no power cables to land. Sheldon-Coulson compared it to “a little Roomba, except it’s enormous.” Instead of serving a single device, multiple Ocean-3 units are meant to work together “basically as a data center,” he said.
Because the machines generate their own electricity and transmit only data via satellite, Panthalassa markets them as an alternative to building large land-based data centers. The company says it has secured sufficient private funding, largely from AI firms seeking faster and cleaner power options. Construction of the new units is underway, and Sheldon-Coulson said he expects them to begin operating offshore around August, with long-term plans to deploy thousands of platforms in distant waters.
What It Means for You
If projects like this succeed, they could reduce the need for large new data centers connected to local grids, especially in fast-growing tech regions. That may ease pressure on electricity supplies, limit competition for power between homes and businesses, and cut demand for new transmission lines and substation upgrades near populated areas.
The approach still faces questions, from how the systems will hold up in rough seas to their effects on marine life and shipping routes. Regulators and coastal communities will be watching whether real-world performance matches company claims on cost, reliability, and environmental impact. For consumers, the outcome may shape how quickly digital services grow without adding as much pollution or land use on shore.
How do you think communities should balance demand for new digital services with the need to protect both the climate and local environments?
Sources
CBS News, “Using the ocean to power data centers,” segment by David Pogue, April 19, 2026; Panthalassa company descriptions of Ocean-2 and Ocean-3 wave-energy data center concepts, accessed 2026; U.S. Department of Energy, marine and hydrokinetic energy overview, updated 2023; International Energy Agency, reports on data center and AI electricity demand, 2022-2023.
