NEDO: Floating offshore wind power generation, demo operation: Started off Kitakyushu City
NEDO: Barge type floating offshore wind power system
The demonstration operation of Japan’s first barge-type floating offshore wind power generation system was launched today in an area of about 15 kilometers off the coast of Kitakyushu City and about 50 meters deep.
Demo operation: using an unmanned submersible
The project will be implemented until fiscal 2021, and the design values will be compared with various measured values such as power generation, wave pressure and mooring force obtained from the demonstration system to evaluate the validity of the design.
Maintenance: Using a remote control type unmanned submersible
Efficient maintenance and management technology for floating bodies and mooring systems,
Technology to prevent and predict failure of floating body and mooring system
By clarifying safety, reliability and economy, we aim to establish low-cost floating offshore wind power system technology.
Table Specifications of the Barge-type Floating Offshore Wind Turbine Demonstration System
Rated power: 3 MW
Windmill type: Upwind, 2 wings
Rotor diameter: 100 meters
Hub height: 72 meters
Wind turbine weight: about 133 tons (rotor nacelle)
Floating body feature: Barge type floating body structure
Floating body material: steel
Floating body shape: Length 51 meters x width 51 meters x height 10 meters (including skirt width 6 meters)
Draft: about 7.5 meters
Weight: 3,100 tons (including windmills and ballasts)
Mooring system: Studless chain + ultra high grip force anchor 9
Gross weight: 9,858 tons (including windmills, moorings, ballasts)
https://www.nedo.go.jp/news/press/AA5_101117.html