Industrial Rooftop Erongo Mountains

Site Overview
Location Erongo Mountains, Namibia
Coordinates 21.43° S, 15.93° E
Average global irradiance 2,383 kWh/m2/yr
Average temperature 19.9 °C, 67.8 °F
Average precipitation 370 mm/yr, 14.6 in/yr
Technical Overview
Date onstream September 2011
System capacity 51.24 kWp
Panel type SF140-L (140 W)
Number of installed panels 366
Tilt angle, orientation 12°, -165° N
Expected output 113,752 kWh/yr
Total CO2-reduction 64,042 kg/yr, 141,187 lbs/yr
Inverter 4 x STP 15000 TL
Financing Bank
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HopSol provides turn-key solutions for photovoltaic power plants. HopSol´s head office is located in Switzerland and the headquarter of HopSol Africa (Pty) Ltd has been established in Windhoek, Namibia, for its customers in southern Africa, where they have specialized in fulfilling the requirements of the solar industry for desert regions. Furthermore, HopSol acts as a wholesaler of all relevant parts for photovoltaic solar power solutions. Superior quality of modules and balance of equipment, along with engineering experience for desert conditions are crucial success factors.

For this project, Solar Frontier modules were chosen due to their superior properties under African climate conditions. With a total capacity of 51.2 kWp, this was the largest solar installation in Namibia at that time of installation. The climate in this region is characterized by extreme daily variations in temperature, concentrated sun irradiation, dust, and sandstorms. Solar Frontier´s thin-film modules are expected to produce approximately 110,000 kWh per year with the installed 366 panels – significantly more energy output compared to other technologies. The high yield, helping Omaruru Beverages Pty Ltd (OASIS Mineral Waters) build a sustainable and profitable business model, was one of the reasons for choosing Solar Frontier CIS modules.

By consequently avoiding the use of toxic substances like lead or cadmium, Solar Frontier obtained the RoHS certificate, documented evidence of their ecological mission. This is yet another convincing argument not only for residential customers, but also for the government, in striving towards an independent, self-sufficient and sustainable national energy production.