Naturno hydropower plant
| Naturno hydropower plant | |||
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| location | |||
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| Coordinates | 46 ° 39 '7 " N , 10 ° 59' 35" E | ||
| country | Italy | ||
| Waters | Vernagt reservoir in the Adige. | ||
| Data | |||
| Primary energy | Hydropower | ||
| power | 230 MW | ||
| owner | Alperia | ||
| operator | Alperia | ||
| Project start | 1958 | ||
| Start of operations | 1963 | ||
| turbine | Pelton turbine | ||
| Energy fed in 2020 | 304 GWh | ||
| was standing | 2020 | ||
The Naturns hydropower plant is a storage hydropower plant in Naturns in South Tyrol , which is fed by the Vernagt reservoir . The power plant uses a very high drop height of 1135 m. It is the largest high-pressure hydropower plant in South Tyrol and is operated by Alperia .
location
The power plant is located in the municipality of Naturns in the Kompatsch district between the left bank of the Etsch and the Naturner Sonnenberg next to the Sonnenberg cable car . The power house itself is located behind the switchgear on the mountain range.
The water intake is in the Vernagt reservoir in Schnalstal, 15 km away . From there, a pressure tunnel leads to the moated castle on the Naturnser Sonnenberg. On this route, the water of the Pfossen, Graf, Mastaun and Penaudbach is still fed. The two-chamber water lock is 100 m high. From there, the water falls to the power station using a 2 km long pressure pipeline laid openly in the area, made from a single steel pipe.
history
The Naturno hydropower plant was built from 1953 to 1956 by the Etschwerke of the cities of Merano and Bozen, today merged into Alperia, and commissioned in 1963. The two-story reinforced concrete powerhouse was planned by the architects Dalla Bona & Zamolo (Bozen) and Willy Gutweniger (Merano).
Between 1999 and 2001 the pressure tunnel was completely renovated and the pressure pipe was covered with an anti-corrosion layer on the inside.
technology
The Naturno power plant consists of three double horizontal Pelton turbines . Two machine groups each with two Pelton turbines with 30 MW from Siemens / Voith and a three-phase synchronous generator with 66.4 MVA, one machine group with two Pelton turbines with 50 MW from Riva-HYDROART and a synchronous generator with 110 MVA from Ansaldo . The processed water flows into the Adige after 425 m.
