Leading the way to
 a sustainable future

Semi-submersible platforms are by far the most utilized technology in the oil & gas sector and have a proven track record extending back to the 1960s. Semi-submersibles offer exceptional stability, high adaptability to harsh environments, and operational simplicity throughout fabrication, installation, and operation. 

In 2007, Principle Power partnered with Marine Innovation & Technology, a specialist offshore engineering company, to develop a floating platform for offshore wind turbines based on a semi-submersible platform architecture.

WindFloat® technology features a three-column semi-submersible architecture for structural efficiency, damping plates at the keel to improve hydrodynamic performance, and the ability to be fully integrated at a quayside to reduce the amount and the complexity of offshore works.

The first WindFloat® patents were filed in 2008 and Principle Power acquired the technology IP portfolio in 2009.

Funding to build a 2 MW prototype project in Aguçadoura, in the north of Portugal, was secured with EDP, the largest Portuguese utility company and 4th largest operator of wind projects worldwide, and later with Repsol, a Spanish oil & gas company.



The 2 MW WindFloat 1 prototype began operations in 2011 and was the first to use a semi-submersible architecture.

WindFloat® technology has an unmatched track record, proven over more than 12 years of operations in extreme weather conditions offshore Portugal and Scotland.

With two WindFloat® products – the WindFloat T and WindFloat F – the portfolio now has 105 MW of cumulative capacity in operation or under advanced development and a market-leading 10 GW of projects under design contract in all key floating wind markets. WindFloat® technology will play a central role in our “300x30” industrialization vision – a program that will enable Principle Power to deliver 300 floating wind turbines by 2030, propelling the industry into the gigawatt scale era.