Austria’s largest solar plant is being built in Graz

Austria’s largest solar plant is being built in Graz

Austria’s largest solar plant will be built on the premises of the district heating power plant on Puchstraße in Graz. Austria’s largest solar plant with a total collector area of 7,000 m² is currently under construction in Graz. It will generate more than 3.5 million kWh of heat per year using solar energy. The plant, which is being

Austria’s largest solar plant will be built on the premises of the district heating power plant on Puchstraße in Graz.

Austria’s largest solar plant with a total collector area of 7,000 m² is currently under construction in Graz. It will generate more than 3.5 million kWh of heat per year using solar energy. The plant, which is being constructed by the Styrian company Solid and will be operated by Energie Steiermark, will begin feeding hot water into the supply
network in autumn of this year.

The largest section of the plant, which has an area of 5,000 m², was completed in 2007. It will now be expanded by a further 2,000 m² on the nearby premises of a district heating power plant. The new collectors are designed specifically for high temperature ranges between 70 and 90 °C. They are equipped with enhanced thermal insulation, special solar glass, detail optimizations, and are more efficient than the ones that were installed previously. “We expect to see a significant improvement in efficiency compared to the initial pilot tests that were conducted in 2007,” managing director of Solid Franz Radovic said.

Generally speaking, Energie Steiermark in Graz is trying to create as green a mix of different energy forms as possible, and wants to gradually reduce the use of natural gas, according to Chairman of the Board Christian Purrer of Energie Steiermark: “We welcome every contribution of solar heat, excess industrial heat and geothermal energy.”
The company already uses the excess heat from a steel mill with an annual output of 60,000 MWh and plans to expand the system with a heat pump.

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