Masdar to use more PV’s to power city

Solar power plant (Serpa, Portugal)

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With the recent drop in costs for photovoltaics (PV) and the effect of dust and haze on solar-thermal technology(the technology originally planned) has caused a rethink in supplying energy to Masdar. The utilities management company has decided to use 50% photovoltaics and 50% solar thermal due to costs. Although photovoltaics produce 20% less energy than solar thermal they will cost 33% less to install. The use of solar power will cost more than 2.5 times the cost per kwh than the current method generating energy via natural gas.

via the [SOURCE: The National]

CROSS POSTED ON UAELANDSCAPEARCHITECT.COM

White vs Green roofs at McGill

Henry Gass of McGill Daily reports

The fight for Montreal’s environmental future has recently reached new heights, as various environmental groups in the city promote the installation of energy-efficient green and white roofs.

Green rooftops, or rooftop gardens, are becoming more and more popular in Montreal, while white rooftops, flat surfaces with a white polymeric membrane stretched across, are just starting to be introduced.

Read the full article at the [SOURCE: McGill Daily - Green, white roofs come to campus]

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