Orsted is to outline a major round of job cuts this week, according to Danish newspaper Berlingske.
The developer is to reveal plans to trim its 8000-strong workforce be around 20%, Berlingske reported.
Senior managers have already been informed of the proposals, according to the newspaper.
Orsted is to outline the plan at the end of this week, the publication added.
Chief executive Rasmus Errboe suggested earlier this year that job cuts may be on the horizon.
In recent months Orsted has been hit by significant difficulties with its US offshore wind construction portfolio that have compounded wider industry headwinds.
An €8bn rights issue is underway to raise funds to finish the 924MW Sunrise project in the US and provide other funding.
The company has been contacted for comment.