Reichenau power plant

Reichenau power plant
	On the left the weir system, on the right the machine house
	location
Coordinates	753 218 / 189345 coordinates: 46 ° 50 '15 " N , 9 ° 26' 50" O ; CH1903: seven hundred and fifty-three thousand two hundred and eighteen / 189345
country	Switzerland Grisons
place	Domat / Ems
Waters	Alpine Rhine
Height upstream	577 m above sea level M.
	power plant
owner	Axpo AG 85% ; Canton of Graubünden 15%
operator	Axpo Hydro Surselva AG
construction time	1959-1962
Start of operation	1962
	technology
Bottleneck performance	18 megawatts
Average ; height of fall	17.75 m
Expansion flow	120 m³ / s
Standard work capacity	106.3 million kWh / year
Turbines	2 Kaplan turbines
	Others
was standing	1st January 2018

The Reichenau power plant is a run-of-river power plant on the Alpine Rhine . The weir of the power plant is about 2.6 km below the confluence of the Vorderrhein and Hinterrhein near Reichenau and is the only barrage on the Rhine as far as Lake Constance . Half of the weir lies on the ground of the municipality of Tamins , the rest of the system is in the municipality of Domat / Ems .

The power plant was built from 1959 to 1962 to supply the Ems-Chemie . Axpo AG has held 85% of the shares since 2003 , the remaining 15% are owned by the Canton of Graubünden . The operator of the plant is Axpo Hydro Surselva AG. Annual production averages 106.8 GWh.

The plant is built as a diversion power plant. The Rhine is dammed above Domat / Ems by a 78 m wide weir with four control openings. It directs a maximum of 120 m³ / s of water into the approximately one kilometer long headwater channel , which partly runs underground. At the end of this channel is the machine house with the two Kaplan turbines . The water then flows through a short underwater canal about 3.9 km below the confluence of the Vorder and Hinterrhein back into the natural river bed.

In April 2000, a fish ladder was put into operation at the weir of the power plant , which is mainly used by lake trout from Lake Constance. There was no fish migration aid in 2014. It is estimated that their installation will cost 3 to 5 million CHF, but it is not clear what kind of solution should be chosen.

Underwater side of the weir system
Control house of the defense system
Upper water side of the weir system
Weir bridge and computer system of the intake structure

literature

J. Lem: The Reichenau-Ems power plant . In: Schweizerische Bauzeitung . tape 84 , no. 42 , October 20, 1966, pp. 733-744 , doi : 10.5169 / seals-69001 .

Web links

Commons : Kraftwerk Reichenau - Collection of images, videos and audio files

swell

Kraftwerke Reichenau AG ( Memento from June 29, 2012 in the Internet Archive )

Individual evidence

↑ Editorial . In: TEC21 . 146th year, no. 10 , April 17, 2020, p. 3 .
↑ Relation: Domat / Ems (1684071). In: openstreetmap.org. Retrieved April 27, 2020
↑ Kraftwerke Reichenau AG. Canton of Graubünden, Office for Energy and Transport, accessed on April 27, 2020 .
^ ^A ^b Nordostschweizerische Kraftwerke AG (Ed.): Fish descent at the Reichenau power station . Project study. Brief description of Kraftwerke Reichenau AG, p. 4 ( gr.ch [PDF]).
↑ Fish ladder at KW Reichenau. In: Living Alpine Rhine. Retrieved April 27, 2020 .
↑ Office for Hunting and Fisheries Graubünden (ed.): Appendix 1: Data sheets of the obstacles in need of rehabilitation . S. 2–3 ( fischwanderung.ch [PDF]).

[1] Editorial . In: TEC21 . 146th year, no. 10 , April 17, 2020, p. 3 .

[2] Relation: Domat / Ems (1684071). In: openstreetmap.org. Retrieved April 27, 2020

[3] Kraftwerke Reichenau AG. Canton of Graubünden, Office for Energy and Transport, accessed on April 27, 2020 .

[:0-4] A ^b Nordostschweizerische Kraftwerke AG (Ed.): Fish descent at the Reichenau power station . Project study. Brief description of Kraftwerke Reichenau AG, p. 4 ( gr.ch [PDF]).

[5] Fish ladder at KW Reichenau. In: Living Alpine Rhine. Retrieved April 27, 2020 .

[6] Office for Hunting and Fisheries Graubünden (ed.): Appendix 1: Data sheets of the obstacles in need of rehabilitation . S. 2–3 ( fischwanderung.ch [PDF]).