The historical narrative is fairly straight forward. In the early 2000 the green party created a strategy to address climate change, and the main part of that was green hydrogen created from renewable energy. The idea was to replace existing oil and coal in the power grid with gas power plants, and in transportation it would replace diesel and gasoline.
From that two transition strategies was formed together with political alliances. The far left has opposed nuclear energy since the 60s, and hydrogen was a superior fuel without any of the drawbacks of nuclear, and so the green and the far left could join on this strategy. The center left and center right was also happy to build cheap natural gas power plants, reducing energy and heating costs for the working class, and provide new jobs. The natural gas power plants could be converted to hydrogen, which was the basis for declaring natural gas as "green" in EU, pushed by this coalition of political parties.
The strategy did not work out and green hydrogen never became economical viable, but despite this it is still the primary strategy for the green party. With climate change advocates in Germany being generally associated with the green party, the strategy being pushed end up being anti-nuclear and pro-natural gas. Abandoning this strategy would mean loosing the political alliances with the far left and center, and thus they are stuck with a failing strategy.
From that two transition strategies was formed together with political alliances. The far left has opposed nuclear energy since the 60s, and hydrogen was a superior fuel without any of the drawbacks of nuclear, and so the green and the far left could join on this strategy. The center left and center right was also happy to build cheap natural gas power plants, reducing energy and heating costs for the working class, and provide new jobs. The natural gas power plants could be converted to hydrogen, which was the basis for declaring natural gas as "green" in EU, pushed by this coalition of political parties.
The strategy did not work out and green hydrogen never became economical viable, but despite this it is still the primary strategy for the green party. With climate change advocates in Germany being generally associated with the green party, the strategy being pushed end up being anti-nuclear and pro-natural gas. Abandoning this strategy would mean loosing the political alliances with the far left and center, and thus they are stuck with a failing strategy.