There are many options. Specifically, Germany can...
1) Continue with BAU, which is Germany paying the costs of closing the reactors and relying on Russian gas.
2) Restart them as quickly as possible. This would minimize the costs of relying on Russia for gas, but would increase the risks of reactor problems from natural disasters.
3) Harden them for natural disasters while restarting them as quickly as possible, which costs more.
4) Use the money spent to harden them on other sources of generation/storage/load shifting/etc, which I suspect costs more.
5) Some of the above based on the specifics in each case.
In addition, Germany would still be reliant on Russian gas for other industrial uses even if nuclear/renewables/coal/storage/etc were able to completely replace gas in the grid.
smells like $$$ and more delays. nuclear is already by far the safest method of power production, and emits far fewer radionuclides than coal, and those numbers are the old generation more dangerous pressurized water reactors.
water's lapping at our feet
Nuclear is less safe than grid solar, it slightly beats rooftop solar because standing on roofs is dangerous and most solar installs are new.
Hydroelectric vs nuclear is tricky because large dams save lives and by reducing flooding etc, and installing hydroelectric when building a dam is much safer than building the dam in the first place. Which makes calculating the deaths from hydroelectric power tricky. Low head dams on the other hand are dangerous, but are largely abandoned technology.
Yeah and making the solar panel, how green is that?
I would like to add that they should bring in bouncy castles around homes when installing solar panels, the kids can play on them and primarily will definitely save the installer from falling. You could also package them together, like "Daddy daddy let's install solar panels" and kids could play in different places in the neighborhood that installed them one after another.
And then you get a better image for the kids, plus you get to lower down the "people falling off roofs" statistic and make solar panel look even better.
I'm joking of course.
There are sometimes calculations where nuclear comes out on top of renewables. But these calculations are hugely more complicated for the nuclear side, and require nothing going wrong, or at least not much more than in the past, which is a dangerous assumption in my opinion. And with nuclear you lock yourself in.
A country needs to build up a large nuclear industry to make it profitable (or pay extra for imports), and to decommission plants or stop building them ahead of schedule increases the costs.
Depending from where you buy them, quiet green. Produced with 100% renewables, made in Germany with polysilicon made in Europe.
Why do you seem some emotional as if your identity is at stake here?
Not trying to defend the parent comment going off about bouncy castle, but I have a hard time believing that statement is true. This is the share of photovoltaic pannel production per region.
https://www.statista.com/statistics/668749/regional-distribu...
They also their own line of solar roof tiles in the pipeline.
there are a lot of reasons why dramatic expansion (of the kind needed to take the edge off climate change) of hydro power isn't feasible. for one most of the suitable sites are already used. and the environmental impact is substantial
The chart often used by pro nuclear sources comes from 2012, compares things to rooftop solar, etc. But more recent data is down as wind and solar deaths are extremely front loaded during construction.
PS: As to batteries etc. The fact nuclear power plants have hundreds of people drive to them every day is going to have associated traffic accidents over the lifetime of a power plant. Where you draw lines as associated deaths or not is somewhat subjective.
https://energytransition.org/2013/06/german-nuclear-plants-f...
Restarting nuclear isn't a bad idea, but it needs to be approached systematically and cautiously such that the risks from natural disasters and economic impacts are minimized, while also weighing the risks of continuing to support Russia.
Unfortunately, many plants across the world have not had accurate risk assessments done, both for natural disasters and economic risks.