Dalešice Hydro Power Plant on the
Jihlava River
The Jihlava (german: Igel) is a river in the Moravia (Czech Republic), a right tributary of the Svratka River. It originates in the Bohemian-Moravian Highlands ''(Českomoravská vrchovina)'' upland at the elevation of 665 m and flows to the Nov ...
is a large power plant in the
Czech Republic that has four
Francis turbine
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use today, and can achieve over 95% efficiency.
The proces ...
s with a nominal capacity of each
Dalešická elektrárna funguje přesně třicet pět let
/ref> and a total capacity of . The old turbines before the 1999–2007 reconstruction had a capacity of each. The plant includes the lower Dalešice-Mohelno Dam.
Dalešice Dam
Dalešice Dam lies in the Czech Republic. It was built between 1970 and 1978 together with the Mohelno Dam as a water source for the nearby Dukovany Nuclear Power Station. As it has the fastest-starting turbines of all dams in Czech republic (less than 1 minute to full power) it also acts as emergency source in case some of the reactors in Dukovany shut down (for that reason it was also initially equipped with total capacity of 450 MW to back-up one of the four 440MWe VVER440 reactors). Thanks to the turbine capability to act as pumps it also plays significant balancing role for distributing network when it pumps water back to the higher reservoir during the night, and uses it again to produce electricity during the daily consumption peaks. The gravity dam
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. ...
is high (the highest in the Czech Republic, second-highest rockfill dam in Europe), so the reservoir is also the deepest in the Czech Republic . The reservoir has a capacity of .
Mohelno Dam
The Mohelno Dam is through-flow dam, acting as the lower reservoir of the Dalešice-Mohelno pump-dam complex. The gravity concrete dam is long, 7.75/32 m wide and 38.65 m tall. It creates 7-km-long lake and has total capacity of . It includes single Kaplan turbine (1.2 MW) and single Francis turbine (0.6 MW). In case of total blackout, the Mohelno turbines can jumpstart the Dalešice Francis turbines and together start the Dukovany NPP. Thanks to this the whole Dalešice-Dukovany complex is certified for fully autonomous operation independent of the external distribution network.
References
External links
Official webpage
Energy infrastructure completed in 1978
Pumped-storage hydroelectric power stations in the Czech Republic
Třebíč District
Hydroelectric power stations in the Czech Republic
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