摘要 |
Provided is an offshore wind turbine generator capable of withstanding unevenly distributed stress with a simple and inexpensive structure and of maintaining reliability in terms of strength. An offshore wind turbine generator includes a nacelle that rotatably supports a rotor head, and a tower portion that supports the nacelle and yaws integrally with the nacelle, and a structure portion that bears the strength of the tower portion has a higher strength against a load in a direction included in a plane having a rotation axis of the rotor head and an extending direction of the tower portion than the strength of the structure portion against a load in a direction included in other planes including the extending direction of the tower portion.
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