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List of rooftop photovoltaic installations : ウィキペディア英語版 | List of rooftop photovoltaic installations
This page lists large-scale rooftop photovoltaic installation projects. Photovoltaic arrays in buildings are often either integrated into them, or mounted on to the their roofs. Arrays are most often retrofitted into existing buildings, usually mounted on top of the existing roof structure. In 2010, more than four-fifths of the 9,000 MW of solar PV operating in Germany was installed on rooftops.〔(Germany To Raise Solar Target for 2010 & Adjust Tariffs | Renewable Energy News Article ). Renewableenergyworld.com. Retrieved on 2011-03-24.〕 In 2011, the most common and newsworthy size for a photovoltaic power station is 1 MW.〔(NEXT TO GO MAINSTREAM: MASS ENERGY STORAGE ), Green Energy News. Retrieved on 2011-03-24〕 However, most of the large-scale stations are not installed on the roofs, but rather integrated with agriculture and some use innovative tracking systems that follow the sun's daily path across the sky to generate more electricity than conventional fixed-mounted systems. Many of all rooftop applications are done in small and medium-sized installations for consumption within the buildings that host the arrays. There are many large-scale installation projects which have been completed in the last decade and many are under construction or proposed. The following lists the rooftop photovoltaic installation projects that are larger than 1 MW in total installation size. It does not include rooftop installations of non-building structures such as detached carports and tunnels. ==Rooftop photovoltaic power stations== Many photovoltaic power stations are installed at the ground level. There are some large rooftop installations for the sole purpose of being power stations by connecting the systems directly to the grid to deliver electricity to customers. Many of these stations are installed on properties of non-utility companies such as warehouses through roof-area lease agreements and power purchase agreements between utility companies and property owners.〔(Solar Industry's Boom in N.J. Casts Shadow Over Program That Spurred It ), ''NY Times'', August 25, 2011. Accessed September 18, 2011〕
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