洋上 ようじょう風力 ふうりょく発電 はつでんじゃなかったです
yōjōfū ryokuhatsudenjanakattadesu

Noun
Desu Copula

The polite, past negative form of 洋上風力発電

1. Wasn't offshore wind power.

Past/Perfective
Negative
Polite
Casual Register