Photovoltaic Power Systems (PVPS)
Systems being tested at the Muğla University Photovoltaic Outdoor Test Site
Since 2002, four independent 4 X 2.5 kWp PV arrays are continuosly monitored. These arrays consist of 20 Single Crystal Silicon modules, 27 Multi-Crystal Silicon Modules, 45 Amorphous Si Thin Film Modules and 60 CdTe Thin Film Modules. All modules are placed on angle adjustable metal frames.
Building Integrated Photovoltaic Systems
The first building integrated rooftop photovoltaic system in Turkey with a 25.6 kWp power output was connected to the Muğla University Campus grid in May 2003. The PV system consists of 214 multi crystalline silicon PV modules (120 Wp under STC) covering a 215 m2 area with a slope of 18°. The annual avarage energy production of the system is about 35,000 kWh with an average annual yield of about 1390 kWh/kWp-year (a performance ratio of 0.79)
The first building integrated “Photovoltaic Facade” in Turkey with 40.3kWp consisting of a triple junction a:Si TWIN140, and single junction a:Si KA64, was connected to the Muğla University Campus grid and has been monitored since 17th February 2008.
Facade:
30.15k Wp with four 6 kW 3 phase inverter
210 modules of 140 Wp, TWIN 140 tripple junction a:Si, covering 395 m2
10 modules of 75 Wp TWIN 75 tripple junction a:Si covering 10 m2
Towers :
West tower: 65 m2, 76 modules of 64 Wp single junction a:Si 5kW single phase inverter
East tower: 71 m2, 84 modules of 64 Wp single junction a:Si 5kW single phase inverter
Double axis photovoltaic tracking sytems
A joint project with Deutschen-Energie-Agentur GmbH (dena) for the enhancement of public perception and market development of photovoltaic and solar thermal systems in Turkey as part of the “solar thermal and photovoltaic systems in German schools and institutions abroad” programme was completed by September 2009.
Two-axis tracking platforms with astronomical and irradiation controlled tracking and two grid-connected PV systems were installed on ~ 52 m2 of the main campus of the University during the project. 168 (84 x 2) special design 95 Wp back contact monocrystalline silicon photovoltaic modules are used in these systems. SUNSET SUNString 5000 inverters are utilized for grid connection. In simulations, the yearly performance ratio of these tracking systems was found to be 2013 kWh/kW.
A hybrid PV system
The performance of the 15 kWp (Polycrystalline Silicon) Hybrid PV System installed on the carports are also under study. 9 kW water pumps driving water fountains at the entrance of the campus are also powered by a hybrid PV system with storage capacity.
PV outside lighting
The total power of the 53 lamp posts on campus is around 3 kWp powering 2 x 60 LED lamps. The solar lamp posts are powered by 40 to 75 Wp PV modules charging storage batteries of 12V 24 Ah - 80 Ah.
Solar Thermal System
Water and Space Heating
As a part of the joint project with Deutschen-Energie-Agentur GmbH (dena), a large area solar hot water system with measurement rigs and data collecting systems has been installed on the roof of the Muğla University Sitki Kocman Sports Hall to provide hot water for the showers (via a buffer tank) and the swimming pool. A high power heat exchanger is used for energy transfer from the solar panels to the end user. Excess energy from this system is utilized in experiments for space heating/cooling .
Lumber Drying Kiln
A lumber drying facility, that has a 40 m3 internal volume and a 40 m2 air collector surface with an annual capacity for drying 300 m3 lumber, has been established within the scope of the DPT (State Planning Organization) project entitled “Examination of Design, Installation and Drying Economy of Auto Regulatory Lumber Drying Kiln Powered by Solar Energy Condensation System in of South Aegean Climate Conditions”.