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50 cubic meters per second are currently arriving in Munich. The Sylvenstein reservoir still has a low water volume of 28 million cubic meters. “We use this reserve to evenly supply the Isar with water and to keep it at a sufficient level. However, if the forecasts are correct, next Tuesday we will have used up 50 percent of our low water reserve since mid-June. For these two months we have been shooting the Isar water too.”
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The “escalation stage” is approaching
Conversely, this means that 50 percent are still left. If this reserve of 50 percent is not reached, however, the outflow must be “reduced”, according to Kröner. The formula is very simple: “The more the level falls, the less we give.” Although such an “escalation stage” has not yet been reached, attempts are being made to keep the level in Bad Tölz and Munich. “However, if we are heading below a sea level of 736.4 sea level, then I am not optimistic that the forecasts are the same as they are now.”
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However, at least 40 cubic meters per second would have to arrive in Munich for the waste incineration plant at the northern thermal power station in the city of Munich to work. The heat in the river water could pose a problem for the cooling water lines from the southern thermal power station due to the low level, explains Christian Leeb from the Munich Water Management Office when asked.
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Less water, less electricity and no more cooling for the elephants
“If the water temperatures are exceeded, the output of the power plants has to be throttled. When the discharge is low, the performance of hydropower plants is also significantly impaired, so that less electricity is produced.” In the worst case, even the elephants in Hellabrunn Zoo could no longer splash about. “Then the Auermühlbach will be throttled,” says Leeb. If this scenario occurs, the Eisbach through the English Garden would also have to be adjusted. The surfers would feel the consequences, according to Leeb: “The surfing wave would collapse.”
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The all-clear comes from Preussen-Elektra, the operator of the Isar2 nuclear power plant, not far from Landshut. “There are currently no heat-related operating restrictions at the Isar 2 nuclear power plant and none are to be expected,” says press spokeswoman Almut Zyweck on t-online request. Isar 2 is designed for a low level of the Isar. “Heat-related operating restrictions on Isar 2 have therefore not been necessary in recent years.”
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