While the German company will continue to manage the Mixdorf solar park, which was completed in July, the Sojitz Group has been brought on board an equity investor.
In a statement released, Sojitz Corporation said that the total project costs are around 55 million.
The photovoltaic park comprises around 100,000 of Yinglis crystalline modules and covers an area of roughly 81 hectares. It is located on the site of a former Russian fuel depot.
It represents Sojitzs second German solar project. The first is a three MW solar power plant in southern Germanys Betzweiler.
In a separate statement issued by Wirsol, it was said that the two parties have "already concluded a framework agreement on the purchase of European solar projects, and intensive negotiations are currently underway to expand the cooperation further into a partnership regarding the Asia-Pacific region."
No further details were released, however.