CSU boss Markus Söder is calling for the lifetimes of nuclear power plants in Germany to be extended.
The plans of Federal Minister of Economics Robert Habeck to expand renewable energies are right, in order to become independent of Russian energies relatively quickly.
"But it would be foolish to get out of nuclear energy now," said the Bavarian politician on ZDF Morgenmagazin.
Habeck brought his plans for the expansion of green energy to the government cabinet on Wednesday and presented them later.
The piles should remain connected to the grid for at least a few more years and thus supply millions of people with electricity.
It is possible to quickly become independent of oil and coal from Russia.
That's not possible with gas.
"Then our economy would suffer massive damage, I think it would even partially collapse and a real social poverty trap could arise for millions of Germans," said Söder.
The main part of natural gas consumption is in industry and households in Germany, which together accounted for two-thirds last year.
Every second apartment is heated with gas.
Nuclear power plants would not be a substitute for this.
In power generation, the share was 13 percent.
Last year, the six nuclear power plants in Germany contributed 13 percent to electricity generation.
After the shutdown of three nuclear power plants at the end of the year, the share of power generation should also halve.
The three remaining systems are also scheduled to be shut down by the end of 2022.
One must concentrate on the energy sources that already exist.
"Switching off nuclear energy is a serious mistake." Söder announced that he wanted to expand wind energy in Bavaria.
"We will create exceptions to get significantly more wind - at least 500 wind turbines."