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The world largest thin-film rooftop photovoltaic power plant was connected to the grid Wednesday after four months of construction. Over 37,000 First Solar thin-film modules have been installed on the 90,000 sqm large rooftop of a logistic centre in Ramstein, Germany. Three inverters convert the continuous current into alternating current. Under the supervision of COLEXON up to 40 mechanics and electricians were working at the construction site. Thorsten Preugschas, board member of RPSE AG, is proud of the success:" With this landmark project we were able to confirm our strong position as a project developer, demonstrating high product and service quality, a quick implementation and excellent price-performance ratio for our costumers." The solar power plant will produce about 2.4 million kWh per year. Based on a feed-in tariff of 46.3 cent/kWh the installation will earn over 1.1 Mio Euro per year. This also accounts for saving of 2 tonnes of CO2 emissions per year.

In neighborhoods across the country, there's a battle brewing: the environmentalists vs. the aesthetes. As "green"-minded homeowners move to put in new energy-efficient windows, solar panels and light-reflecting roofs, they are bumping up against neighbors and local boards that object, saying the additions defy historic-district regulations, will look ugly or damage property values.

Emerson had originally considered placing condensers separate from the building. Instead, the condensers were installed on the data center roof near the computer room's air conditioning systems, saving about 2.5 miles of copper piping.

The Pacific Northwest National Laboratory (PNNL) developed flexible solar panels that can be installed on roofs.

"Is solar power a bright investment? It costs £12,500 to install solar cells on your roof, but new tariffs should give you a return of at least £25,000. So what's the catch? There isn't one, says Miles Brignall"

The solar industry is booming, ramping up production capacity and driving costs down steadily towards the mythical "Grid Parity" point - the price point when solar on your roof beats paying your utility bill. That's a game changer and the solar industry is steadily heading that direction.