RWE and Nordex have signed a contract for the supply of turbines with a total capacity of 800MW.
Over the next two and a half years, RWE will purchase around 120 machines from Nordex for its European markets.
The parties have agreed not to disclose any financial details.
RWE will mainly use the N163 model with a flexible rated output of up to 6.8MW.
The contract also include the N175 (up to 6.8MW) and N149 (up to 5.9MW) units, which can be deployed in RWE’s core markets in Europe if required.
In addition, both companies have signed a multi-year service agreement covering the maintenance and servicing of the wind farms.
RWE already operates 53 arrays with Nordex turbines in seven countries.
RWE Renewables Europe and Australia chief executive Katja Wunschel said: “We have announced that we will accelerate our expansion even further.
“By 2030, we want to increase our installed capacity in the onshore wind sector from the current 8.6GW to 14GW.
“To strengthen our supply chain, we are planning for the long term and relying on strong partners.
“This supply agreement with Nordex optimally complements existing contracts and secures additional capacity for us to achieve our ambitious growth targets.”
Nordex Group chief executive Jose Luis Blanco added: “We look forward to further expanding our cooperation with RWE.
“Not only have we shared many successful projects with RWE in the past, but we also share the vision of intensively driving forward the energy transition and thus making a joint contribution to Europe’s energy security.”