Floating Wind Design
Floating Concept of the Month
Quest Floating Wind Energy maintains a digital library of Concepts which illustrate the breadth of proposed engineering solutions. Each month, one of these compelling concepts will be featured at www.QuestFWE.com
The Toda Hybrid Spar
Toda Corporation started development of a hybrid SPAR in 2010 and installed a half scale model offshore in 2012 (100kW). The full scale spar was installed a year later at Kabashima (Goto Islands, Japan) with a 2MW Hitachi turbine. The lower floater part consists of pre-stressed concrete with a steel upper transition piece, weighs 3,400T and is moored with 3 all-chain lines on drag anchors.
Following a decision in 2015 to pursue a commercial scale project the Spar was relocated in 2016 to Fukue Island some 10 km away (Goto Islands) in 2016 carrying a Hitachi 2MW turbine.
The commercial project was confirmed at FOWT 2018, to consist of 9 SPARs of similar design, also with 2MW turbines to allow for an ambitious fast track planning: start of construction in Q4 2018 and online end of 2019.