Hamburg-based REpower now expects full-year revenues of €1.25bn-€1.35bn ($1.64bn-$1.77bn), compared to the €1.5bn-€1.6bn it predicted in November.
It now predicts an operating margin of 5-7%, compared to its previous guidance of 7.5-8.5%.
Chief executive Andreas Nauen blames the gloomier outlook on a spate of project postponements due to a persistent lethargy in the capital markets.
Nauen says he expects the company to notch up further growth “in the medium to long term”.
