Summary
A new Innofact poll shows 55% of Germans support returning to nuclear power, a divisive issue influencing coalition talks between the CDU/CSU and SPD.
While 36% oppose the shift, support is strongest among men and in southern and eastern Germany.
About 22% favor restarting recently closed reactors; 32% support building new ones.
Despite nuclear support, 57% still back investment in renewables. The CDU/CSU is exploring feasibility, but the SPD and Greens remain firmly against reversing the nuclear phase-out, citing stability and past policy shifts.
Nuclear power is great. But I do wonder if they might be targets in a war with Russia or something. Can they be prevented from meltdown in the case of a missile strike?
Huh? Modern nuclear power plants automatically stop the reaction. In addition to other safety features monitoring things like temperature, radiation, etc. for automatic shutoff, the rods are held in place via electromagnetism. In the event of a power loss, the reaction will stop because the rods fall out of place. (This may just be one type; other modern reactors have ways of automatically stopping the reaction in the event of a power loss.)
The main reaction can be stopped within seconds, but the secondary reaction cannot. If the reactor isn’t sufficiently cooled by running water through it, it will meltdown due to the secondary reactions.
Those are old designs, new ones basically stop once the water is removed.
Hence the ‘negative void coefficient’, modern designs lose reactivity as the water is removed.
Look at pebble bed and other designs.
Depends on the reactor type. I know the CANDU reactors that Canada uses are very difficult to meltdown since they use unenriched uranium fuel, and if the deuterium moderator disappears due to a missile strike or something, the reaction just fizzles instead of running away.