Oil firm Shell , energy company Innogy and wind turbine maker Siemens Gamesa Wind Energy are joining forces in the € 18 million ( $ 21 million ) development of the TetraSpar floating foundation concept for offshore wind turbines . They claim the TetraSpar offered streamlined manufacture , assembly and testing and they will demonstrate it using a 3.6 MW Siemens Gamesa Renewable Energy turbine 10 km offshore in 200 m water off the Norwegian coast . It will be built and assembled in Denmark .
Oil firm Shell, energy company Innogy and wind turbine maker Siemens Gamesa Renewable Energy are joining forces in the €18m ($21m) development of the TetraSpar floating foundation concept for offshore wind turbines. They said the TetraSpar offered streamlined manufacture, assembly and installation and they will demonstrate it using a 3.6 MW Siemens Gamesa Renewable Energy turbine 10 km offshore in 200 m water off the Norwegian coast. It will be built and assembled in Denmark.