Harvesting Sunlight and Plant Power on UArizona's Greenest Building

solar panels at sunset with colorful sky in background

Read the full story at UANews.


Article by Mikayla Mace Kelley, University Communications, 2021. Photo by Kevin Choi, Office of Sustainability, 2021.

Construction of a rooftop garden and solar panels atop the University of Arizona's Environment and Natural Resources 2, or ENR2, building is complete, and the research phase of the ENR2 Rooftop PV+ Project can now begin.

The method of growing crops under solar panels to increase the efficiency of both is called agrivoltaics – a semantic mashup of "agriculture" and "photovoltaics." When any other kind of plant is used, such as native species instead of crops, the system is called photovoltaic-plus, or PV+.

ENR2 is already a LEED Platinum-certified building, the highest rating in the Leadership in Energy and Environmental Design rating program. The Rooftop PV+ Project is a way to demonstrate sustainability in the desert while also providing unique research and learning opportunities for the UArizona community.