The Swedish company’s wind power business made an operating profit of SEK 3.7 billion (€354 million) in 2018, up 114% from the previous year.
It increased its wind power fleet by 451MW in 2017 and 2018, Vattenfall stated.
However, this increase in capacity was offset by "less favourable wind conditions" in 2018 meaning electricity generation was "stable" compared to the previous year.
Its wind fleet generated 7.6TWh in 2017 and 7.8TWh last year.
This helped Vattenfall’s wind business increase its external net sales by 20% year on year to SEK 8.0 billion.
Wind’s SEK 3.7 billion accounted for 20% of the whole company’s operating profit last year (SEK 17.6 billion).
Vattenfall stated that it plans to invest SEK 24 billion in wind power in 2019 and 2010 – 75% of total growth investments planned for this period.