Seawind Ocean Technology B.V., a Netherlands based company, is a manufacturer (OEM) of integrated floating wind turbine and green hydrogen systems.

[1][2][4] Seawind Ocean Technology is developing offshore wind energy solutions that meet the needs of large and small installations to support global decarbonization.

[2][5] Seawind's technology stems from Glidden Doman’s flexible two-bladed turbine system design that is compliant with the forces of nature rather than resistant to them.

[1][2] Seawind's floating wind turbines, which allow for increased accessibility through its nacelle helideck, do not require pile driving, cranes, and heavy vessels for installation at sea.

[2] Seawind states that its projected LCOE advantage will also accelerate the company's target objectives for offshore and onshore green hydrogen production.

[7] Pilots that have flown Doman's helicopters note the exceptional hovering stability, significant reduction in vibrations, and the ‘finger-tip control’ with which they could fly the machines.

[2][7] In 1982, Hamilton Standard installed the WTS-4, a 4.2 MW two-bladed wind turbine with a teetering hub, soft steel tower, and pitch power control in Medecine Bow, Wyoming.

[6][7][8] Doman's work was further inspired by German aerospace engineer Kurt Hohenemser who declared that wind turbines should be two-bladed, fixed pitch, and controlled by yawing to achieve the highest reliability.

[20] Dr. Hohenemser, along with his mentor Anton Flettner, developed helicopters for the U.S. military after being among the first German immigrants in the United States after World War II.

[2][8] Power from the Gamma 60 turbine is controlled by yawing the rotor, a maneuver made possible by the load alleviation resulting from the soft-system design.

[1][8] Features including the teeter hinge that eliminate major vibratory loading, allow a Gamma system to be very lightweight and longer lived than its competitors.

[2] Sky Saver Srl, the Italian subsidiary of Blue H Technologies, files for a grant and permission to install a two-bladed wind turbine on a floating tension-leg platform (TLP) off the coast of Southern Italy in the Strait of Otranto.

[2][27][28] The prototype was installed in waters 113 meters (371 ft) deep in order to gather test data on wind and sea conditions, and was decommissioned at the end of 2008.

[29] In 2007, Blue H Technologies acquired the Gamma 60 turbine and manufacturing rights from Gamma Ventures, Inc.[2][4] In January 2009, the Energy Technologies Institute (ETI) invested £3.3m in Project Deep Water to examine the economic and technical feasibility of a tension-leg platform design using a two-bladed teeter hinge 5 MW floating wind turbine with hybrid concrete/steel floater and concrete counter weight.

[29] This project, which was led by Blue Technologies, included BAE Systems, Romax, CEFAS, EDF Energy, PAFA Consulting Engineers and Sea & Land Power, and Energy Ltd.[29] Project Deep Water determined that two-bladed teetered turbines with tension-leg platforms could help reduce the costs of offshore wind in the UK and helped shape the next stage of ETI's Offshore Wind program.

[1] Its nacelle is reinforced with rafters, like a ship's hull, and is linked to a central circular-shape helicopter landing deck that can accommodate large twin-engine-helicopters.

[1] Seawind's two-bladed teeter hub, which rigidly attaches the two blades to a flexible structure with limited pivoting capability, provides stability and reduces overall system fatigue.

[1] This design supports service accessibility, passive seawater cooling, reduces vibration-related power electronics risks, and decreases nacelle mass.