The brief interruption of Unit's 2 production will be used by the Temelín technicians to modify the condenser. The device that cools the steam after passing the turbine allowed an increase of the plant output by several electrical megawatts since the last outage. Unit 2 has reached a higher output due to better cooling efficiency and thanks to a new method of cleaning up more than thirty thousand titanium cooling tubes within the device. (For additional information refer to https://www.cez.cz/cs/pro-media/tiskove-zpravy/6559.html). However, the power plant is about to tune the complete system yet. This should take place in the course of the second half of the next week.

The interruption of the electricity production of Unit 2 is planned by the technicians for several days. During this period, Temelín Unit 1 will normally produce electricity. ČEZ company planned the short disconnection of the generator from the transmission grid for the second half of the next week, although the block could have been further in operation. Favorable conditions occurred for the performance of the modifications as a relatively low power consumption is expected in the transmission system. The power plant staff plans to connect Unit 2 to the transmission grid in the period from September 23, the exact date will depend on the subsequent checks. 

From the beginning of this year, the power plant at Temelín produced 10 million megawatt hours of electricity.

The condenser - a piece of equipment of the power plant's non-nuclear part, which cools the steam after passing the turbine. It is a well-structured system of 32 thousand titanium cooling tubes. The reason for a large number of tubes is the need to get the largest possible surface area, on which the steam coming from the turbine can condense. The device can be seen in the context of a virtual tour here: http://virtualniprohlidky.cez.cz/cez-temelin/

Ing. Marek Sviták

Temelín NPP ČEZ Group Spokesman