Portugal generated 24 percent of its electricity from wind, Germany had 21 percent, and Spain reported 19 percent.
According to the report, wind energy investments were up from 2017 by 20 percent to €26.7 billion, almost equivalent to the record year for investment in 2016.
In 2018, offshore investments amounted to €10.3 billion while onshore investments hit a record level of €16.4 billion.
"Wind energy accounted for 63 percent of investments in renewable energy in 2018, up from 52 percent in 2017," the report highlighted.
The size and type of wind turbines installed in Europe varied significantly between countries.