https://energyonwi.extension.wisc.edu/2019/10/09/solar-sunflower-at-olbrich-botanical-gardens/
Solar Sunflower at Olbrich Botanical Gardens – Energy On Wisconsin – UW–Madison
This eight module solar array produces 700 kWh each year. Madison, WI 12-2011 Photo courtesy of Sherrie Gruder
olbrich botanical gardenson wisconsinsolarsunflowerenergy