Contingent on the Heat which occures during Summer, atomic power plants worldwide will have problems. The temperature in rivers is going to rise. So, less cooling water can be used from these rivers. And the other way: To avoid breaking the limit for minimum quantitiy, less warm water from the atomic power plants can be preluded into the rivers, because this would harm fish and the ecosystem.
Several atomic power plants will have their performance lowered. Take an example from 2006 / Germany: Operator and concern E.ON Energie web reduced the output from their atomic power plants by 50 % (!). The cause was the high temperature of the river “Weser”, whose water is directly used for cooling.
Atomic power plants do not guarantee security of supply.
The electricity price will rise.
This is an old blog entry made by me, but the Centre for European Economic Research now (on July 31st 2009) says, that cooling water is getting short because of climate change: HERE
They say, reactors will be without cooling water.
Source: ZEW Mannheim