E.on owns a 20% stake in the Nysäter project, to be built in the Västernorrland district, and will service it under a long-term operations and maintenance (O&M) agreement.
A fund owned by financial investors Credit Suisse Energy Infrastructure Partners (CSEIP) owns the remaining 80% majority stake in the project.
Nysäter will consist of 114 Nordex turbines with power ratings of between 3.9MW and 4.4MW, with maximum tip heights of 220 metres.
Construction will start at the site in 2018 and is expected to be completed by the end of 2021, E.on stated.
Power from Nysäter will be sold to an unspecified "global energy major", the utility-developer added.
E.on stated this agreement "highlights the increasing trend toward renewable energy PPAs (power purchase agreements) in Europe".
Update: In early December, Nordex announced the turnkey deal with the developers. As well as supplying 104 N149 turbines with an average capacity of 4.2MW and a further ten N131 3.9MW machines, the German manufacturer is also providing balance of plant components.
The N149 model turbines will operate with output between 4MW and 4.38MW, while the N131 units will operate between 3.13MW and 3.9MW, the manufacturer said.
The project, which has been split in to two sites, has average turbine speeds of 7.5-8m/s.
Turbine installation will begin in March 2020 at the first of the two phases.