New Era (Windhoek)

13 December 2012

Namibia: Windhoek Skyscrapers Turn to Green Energy

Windhoek — Windhoek's landscape has been transformed into a green zone with the installation of the largest roof-mounted crystalline photovoltaic system across a number of buildings in the town.

The systems are on top of the Nampower head office building, the Ministry of Environment and Tourism, the Hanns-Seidel Foundation, and now recently the International Pharmacy and the Woermann Brock /Ae //Gams supermarket in Klein Windhoek.

The largest installation at Woermann Brock supermarket has an output of 237kWp and comprises of 948 SW250 panels. The system will generate electricity supply to the supermarket with electricity for all general day-to-day requirements, ranging from the bakery to the butchery, cafeteria food-preparation, cooling and space lighting.

Based on the electricity consumption pattern data that have been captured so far, the energy produced will offset close to 40 percent of the supermarket's daily electricity consumption.

Annually, this will result in the production of 450 300kWh of clean electricity, thereby reducing the CO2 emissions by approximately 250 tonnes.

The Nampower installation comprises of 259 SW245 solar panels producing about 15 percent of the building's power requirements.

The array will result in reduced CO2 emissions of 66.672 tonnes for the year. The rooftop installation at the Ministry of Environment and Tourism consists of 833 SW255 panels with an output of 212.415 kWp.

The system is expected to produce 403 589kWh, while reducing the CO2 emissions by 223.184 tonnes. The Hanns-Seidel-Foundation consists of 39 SW240 panels with an output of 9.36kWp. Annually it produces 17 784kWh, minimising CO2 emissions by 9.835 tonnes. Installation at the International Pharmacy comprises of 89 SolarWorld 240W panels with a total output of 21.360kWp.

The system will have an annual energy production of 40 584kWh and a CO2 reduction of 22.443 tonnes. A local company Solar Age Namibia did all the multimillion-dollar contracts for installations, with technical support from SolarWorld Africa, the sub-Saharan African distribution arm of SolarWorld AG.

Solar Age Namibia are specialists in the development, design and sale of high-tech solar energy solutions. "Our partnership with SolarWorld has seen many successes thus far. Their world-class German technology which has a good standing in Namibia, coupled with our local expertise and knowledge of the location and environmental aspects, have been a winning combination, offering clients an environmentally friendly and cost-effective alternative energy solution," said Conrad Roedern, Solar Age Namibia Managing Director.

Woermann Brock says the decision to switch to solar energy was based on the moral obligation to conserve the planet by reducing carbon emissions that in turn will contribute to a viable future for future generations.

"It is also an economic decision because of the constant electricity price increase, thus we are trying alternative energy sources.

Every bit helps, whether it is changing to energy efficient light bulbs or generating a portion of your energy needs via a solar system at your household and business," says Jesko Woermann, Woermann Brock & Co Managing Director.

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