Nuclear powerhouse Constellation Energy announced Tuesday it will spend roughly $100 million to upgrade critical electrical systems and plant equipment at its Calvert Cliffs nuclear power plant, where the company may pursue license renewals.

The German government has announced that it is closing the Gorleben salt mine in the Wendland region of Lower Saxony, officially removing the site from consideration as a repository for radioactive waste. Gorleben became a target of antinuclear protests after being proposed as a potential repository in the 1970s.