Western State College
(Kelley Hall)
This project consisted of two photovoltaic (PV) systems, an evacuated tube domestic hot water solar system, and a monitoring system for Western State College's Environmental Studies building, Kelley Hall. The system was carefully designed to be used both as a teaching tool, as well as providing renewable energy. The two PV systems were sized to have comparable name-plate values (~2.7 kW each), while utilizing two different module technologies, so that students could study how output from each system differs, based upon various weather and/or shading conditions. One system utilized amorphous silicon (thin-film) technology, using Kaneka modules. The other system utilized polycrystalline technology, using Sharp modules. The two systems were also intended to illustrate differences in efficiency, as the Kaneka modules take up a much larger physical area for the same amount of energy output. The thermal system utilizes state-of-the-art Viessman evacuated tubes, and provides domestic hot water to the building. Energy output from all three systems is illustrated and tracked using a Fat Spaniel monitoring system, with both a web page and a custom-built kiosk for visitors and students to check in on energy production. The web page provides historical data, so that students can study how the systems have performed over time.