The intended site for the solar park is located in the Weesow and Willmersdorf districts of the city of Werneuchen, around 26 kilometres northeast of Berlin. It covers an area of 209 hectares, of which 164 hectares will actually be built on. The existing 10 MW solar park neighbouring the site is not included in these figures and is not part of the Weesow-Willmersdorf solar park being planned by EnBW.
The site is currently used for agriculture. The project has been in development since 2009. EnBW acquired the project rights and land in 2018. When EnBW took over the project, all rights were fully transferred to the company EnBW Solarpark Weesow-Willmersdorf GmbH. The current development plan allows for a service life up to 31/12/2060.