In partnership with Arrowhead Cooperative, Great River Energy (GRE) will build a 20-kW solar array at Arrowhead Cooperative’s headquarters site, 5401 Minnesota Highway 61 in Lutsen. The Lutsen solar array is one of 18 20-kW arrays GRE is installing throughout its service area in Minnesota, in addition to the recently completed 250-kW solar array at its headquarters building in Maple Grove, Minn. The solar array will generate renewable electricity while also providing information on how distributed generation solar facilities like this can best be used by electric cooperatives. Construction will begin in October and GRE expects it will be completed and in-service by the end of October. GRE will be using panels from tenKsolar, which are assembled in Minnesota. The system will consist of 48 solar panels, arranged in six rows of eight panels.