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Floater Sizing Tool
OWOE Simplified Sizing Tool
Input
Energy TypeWind
System TypeFloating Foundation
SubtypeSemi (3-column)
LocationUSA - California
Hs (design)29.8 ft
Water Depth2,950.0 ft
Turbine Power Rating8.0 MW
Number of Platforms96
Distance to Shore33.0 nm
Start Over Update Input


Output
Platform:
Total Payload1,067 st
Displacement8,375 st
Turbine:
Hub Height340.1 ft
Rotor Diameter476.2 ft
Turbine Base Diameter26.7 ft
 
Platform Cost (avg)$75.9 million
 
Wind Farm:
Total Power768.0 MW
Number of rows8
Number of columns12
Row spacing (8D)3,809 ft
Col spacing (6D)2,857 ft
Type TransmissionHVAC
# HVAC Substations2
 
Platform Cost (total)$7.29 billion
Trans Sys Cost (total)$851.9 million
Wind Farm Cost (total)$8.14 billion
 

Hull Dimensions
Column c/c Span173.5 ft
Column Diameter37.5 ft
Column Height105.8 ft
Pontoon Length136.0 ft
Pontoon Diameter13.1 ft
 
Draft62.6 ft
Freeboard43.3 ft
 
# Mooring Lines3


These dimensions and costs are based on a very limited number of floating wind facilities, all of which are prototypes or demonstration facilities at this time. Results should only be used as best estimates at this time. Do not sanction or build a platform using this data.


For help in sizing a platform to meet your unique requirements, please contact:

www.vloffshore.com
(713) 766-6765


If you like OWOE's platform sizing tool, you can access advanced sizing features by becoming a registered OWOE user. Click here to login or register in order to access advanced features such as weight and cost breakdowns, execution strategies, and project schedules:
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Comparison of OWOE Parametric Sizing Algorithms to Actual Platforms - Floating Wind
(values represent ratio of sizing algorithm to platform actuals - color indicates quality of the comparison: green best (+-5%) -> yellow (+-10%) -> orange (+-15%) -> purple (+-25%) -> red worst (>25%), blanks no data)
 
    Platform Displacement   Column Dimension   Span   Draft   Hull Wt
Development Name   Using Actual Displacement Using Specified Payloads Using Advanced Relationships Using Simple Relationships   Using Actual Displacement Using Specified Payloads Using Advanced Relationships Using Simple Relationships   Using Actual Displacement Using Specified Payloads Using Advanced Relationships Using Simple Relationships   Using Actual Displacement Using Specified Payloads Using Advanced Relationships Using Simple Relationships   Using Actual Displacement Using Specified Payloads Using Advanced Relationships Using Simple Relationships
WindFloat - 2 mw prototype   1.00 1.00   1.00 1.00   1.00 1.00   1.00 1.00  
WindFloat - 6 mw production   1.00 1.00   1.01 1.01   0.98 0.98   0.98 0.98  
Hywind - 2.3 mw prototype   1.00 1.00   1.24 1.24     0.66 0.66  
Hywind - 6 mw production   1.00 1.00   0.95 0.95     1.08 1.08  
VLO Y-Wind 3 mw   1.00 1.00   0.99 0.98   1.06 1.06   1.02 1.02  
VLO Y-Wind 5 mw   1.00 0.95   1.01 0.99   0.95 0.93   0.99 0.97  
VLO Y-Wind 8 mw   1.00 1.01   1.01 1.01   1.00 1.00   0.99 0.99  
Average   1.00 0.99   1.03 1.02   1.00 0.99   0.96 0.96  
Standard Deviation   0.02   0.09 0.10   0.04 0.05   0.14 0.14  


Key Dimensions Diagram
173.5 ft
37.5 ft
62.6 ft
13.1 ft
105.8 ft
340.1 ft
476.2 ft