On 19 February 2013, Wenzel was sworn in as Deputy Minister-President and State Minister for the Environment, Energy and Climate Protection in the state government of Minister-President Stephan Weil. As one of the state's representatives at the Bundesrat, he served as chairman of the Committee on the Environment, Nature Protection and Reactor Safety.
In 2014, Wenzel led the negotiations on the future of controversial radioactive waste disposal facility in Gorleben.[3] From 2014 and 2016, he was one of the members of Germany's temporary National Commission on the Disposal of Radioactive Waste.[4]
When the Green Party had to leave the coalition government following 2017 state elections, Wenzel was succeeded by Olaf Lies. From 2017 until 2021, he chaired the State Parliament's Finance Committee and the Audit Committee.
Member of the German Parliament, 2021–present
In parliament, Wenzel has been serving on the Committee on European Affairs and the Committee on the Environment, Nature Conservation, Nuclear Safety and Consumer Protection.[5] In addition to his committee assignments, he is a member of the German delegation to the Franco-German Parliamentary Assembly.[6]
Other activities
German Energy Agency (DENA), Ex-Officio Chairman of the supervisory board (since 2022)[7][8]