Nuclear Power

They really should do it. The most expensive part of the facility, the facility itself, is already constructed. Even if they need new reactor vessels, it'll be more affordable than building a whole new plant.

Unfortunately about half of the article is behind a hard paywall

J. Trittin: "It was clear to us that we couldn't just prevent nuclear power by protesting on the street. As a result, we in the governments in Lower Saxony and later in Hesse tried to make nuclear power plants unprofitable by increasing the safety requirements."