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T-Omega Wind launched a 1/16-scale floating offshore-wind prototype off New Bedford, Massachusetts, in December 2023. The design replaces a conventional central tower with a double-sided rotor supported at both ends by four diagonal legs. That launch followed 1/60-scale wave-tank testing, but the public reports cited here do not provide at-sea power data or establish commercial readiness.
How T-Omega’s floating pyramid works
A conventional offshore wind turbine places its rotor on top of one tall central tower. T-Omega’s concept instead holds a rotor-and-axle assembly at both ends, with four diagonal supports distributing the structure’s loads down to a floating base. The base sits on four corners and is attached to the seabed with slack moorings.
According to the company’s design explanation reported by New Atlas in 2023, that mooring arrangement lets the floating assembly passively orient as wind direction changes. The rotor’s double-sided support and the four-leg structure are intended to avoid concentrating as much structural demand in one tower.
What was tested, and what the results establish
Wave-tank model
Before the sea trial, T-Omega tested a 1/60-scale model in a wave tank. New Atlas reported in 2023 that the model remained upright under test conditions representing freak waves of 30 m (98 ft). This is a scale-model test result under equivalent conditions, not evidence that a full-size turbine has weathered a 30 m ocean wave.
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At-sea prototype
In early December 2023, the company launched a 1/16-scale prototype off New Bedford for an evaluation period that the cited report did not specify. The launch was a step beyond the tank, but the available reports do not publish a post-deployment power-production dataset, an independent cost assessment, a certification result, or a date for full-scale deployment.
Why the company says the design could lower costs
T-Omega’s economic case rests on construction, structural loading, and maintenance. The company argues that supporting the rotor at both ends and spreading loads across four lighter legs could reduce the material and logistics burden associated with a single heavy tower and deep ballast. It also proposes building and assembling the unit onshore, towing it offshore for connection, and bringing it back to a dock for major maintenance. If that approach works at commercial scale, it could reduce dependence on specialized offshore crane ships.
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Those are design rationales, not independently verified operating outcomes. T-Omega’s US$50 per megawatt-hour levelized cost of energy (LCoE) figure, reported by New Atlas in 2023, is a company target rather than a demonstrated cost from an operating project.
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What the 10 MW concept dimensions mean
For a projected 10 MW concept, T-Omega figures reported by New Atlas in 2023 specify a 198 m (650 ft) rotor, a 119 m (390 ft) pyramid height, and a 70 m (230 ft) side length. These are concept dimensions, not measurements of the 1/16-scale prototype or a deployed utility-scale turbine.
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How T-Omega compares with EOLINK’s separate pyramid approach
EOLINK’s France-Atlantique project is another, distinct floating pyramid-platform concept. Its project claims should not be read as evidence about T-Omega: the structures, plans, and supporting project information belong to different developers.
| Comparison point | T-Omega Wind | EOLINK France-Atlantique |
|---|---|---|
| Structure and mass | Four diagonal supports carry a double-sided rotor. T-Omega says this could reduce the material and logistics burden of a single heavy tower and deep ballast; no independently verified mass reduction is stated in the cited New Atlas report (2023). | OPEN-C describes a patented four-tower structure and states that it is intended to make the foundation 45% lighter than a single-turbine tower. This is an EOLINK project claim, not a verified result for T-Omega. |
| Mooring and alignment | Slack seabed moorings are intended to let the platform passively orient with changing wind direction (New Atlas, 2023). | Not stated on the cited OPEN-C project page. |
| Maintenance approach | T-Omega proposes towing the assembled turbine to the site and returning it to a dock for major maintenance (New Atlas, 2023); an operational maintenance record is not stated. | Not stated on the cited OPEN-C project page. |
| Water depth | ASME presents floating pyramid supports as a potential approach for deeper water; a specific depth for T-Omega is not stated in the cited reports. | A specific project depth is not stated on the cited OPEN-C project page. |
| Scale and evidence | 1/60-scale wave-tank model followed by a 1/16-scale prototype launched off New Bedford in 2023 (New Atlas). | OPEN-C says the project plans a 5 MW demonstrator at the SEM-REV test site. |
| Energy claim | T-Omega’s reported target is US$50/MWh LCoE (New Atlas, 2023); measured project LCoE is not stated. | OPEN-C says longer blades could enable 10% more energy production. This is a stated project claim, not a measured result. |
| Certification and commercial readiness | A certification result and full-scale deployment date are not stated in the cited reports. | A certification result and commercial deployment date are not stated on the cited OPEN-C project page. |
Funding and the next proof points
T-Omega’s company news page lists a US$256,000 National Science Foundation Small Business Technology Transfer grant. That grant is a funding award; by itself it does not establish turbine performance, project economics, or certification.
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The critical next evidence would be published results showing how the prototype behaves at sea, including measured energy production and operating performance. A credible commercial case would also need independently assessed costs, certification progress, and a full-scale deployment plan. Until those are available, the prototype demonstrates that T-Omega advanced its concept from a wave tank to a real-world test—not that it has proved a cheaper or commercially ready alternative to conventional offshore wind.
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