Bettina Louis is has been an engineer for energy and process technology for 20 years and a teacher at a technical school for almost as long. Now retired, Bettina is volunteering for the End Of 10 campaign and organizing install events in Berlin.
Bettina Louis is has been an engineer for energy and process technology for 20 years and a teacher at a technical school for almost as long. Now retired, Bettina is volunteering for the End Of 10 campaign and organizing install events in Berlin.