Nuclear Power Plant Landshut Isar I + Isar II

Nuclear Power Plant Landshut Isar I + Isar II

Infobox NPP
Picture = KKI.jpg
Pic_des = Isar nuclear power plant
Country = Germany
Utility = Isar 1: E.ON
Isar 2: 75 % E.ON, 25 % SWM
Built = 1971
Start = March 21, 1979
End =
Reactor = 2
S_Reactor =
Capacity = 2.387
El_Prod = 19.051
for_year = 2007
El_Prod_avg = 18.484
Net_Prod = 406.418
as_of = 03/20/2008
Next to the Isar river, two base load nuclear power plants have been built, called Isar I and Isar II. They are fourteen kilometres away from Landshut, between Essenbach and Niederaichbach.


Passive safety features

Consequentially shielding:
The safety feature begins with the so-called “passive safety feature” which includes the radio-active materials in the reactor core (also by accidents) to protect them from the outside environment.

Safety in- and outward:
Fuel pellets, Fuel-Rod casings, reactor pressure vessel, biological shield, steel containment structure and the outer ferro concrete mantle are six of the most important passive safety features.

Active safety features

The passive safety installations are supplemented by a lot of automatically working “active safety systems” whose reliableness is based on their plural existence and their autonomously working in separate rooms.

This is as necessary for the internal electric power supply as for the reactor cooling system, which guarantees the reliable thermal dissipation in every operating status, even when an implausible accident ingresses (for example a break of a primary coolant line).

It constantly controls and compares all the important key operating parameters of the plant and activates automatically the necessary protection measures (independent from the plant operating personnel) if a parameter reaches a limit value.

For example the protection system may initiate a rapid shutdown and aftercooling procedure.

The future

On-site storage facilities

By law, all nuclear power plants are forced to store their atomic waste in on-site storage facilities near the power plant.

These temporary storage facilities have to be used until a final processing plant is built in a central location in Germany, to where all nuclear power plants would bring their atomic waste to. The usage of this storage is planned from 2030 onwards, so interim storage facilities are necessary.

The nuclear power plants Isar must also therefore have its own temporary storage facility, which has been under construction since 15 June 2004.

Work on the temporary storage facility at the Isar location was marked by protest actions from environmentalist and resident groups, which voiced concern about possible health effects.

By plan, the interim storage facility of Isar I+II should be finished in the first half of the year 2006 and can be used from then on.

Phasing-out of nuclear power

Concerns for the safety of nuclear power production were greatly increased after the Chernobyl accident in 1986, eventually leading to plans for its phase-out in certain countries. According to German Nuclear Phase-out regulations, Isar-I will be shut down in 2009, with operations in Isar-II continuing until 2020.

External links

* [ E.ON Nuclear Energy]

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