Who We Are As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a dec...
. Minimum Qualifications Apprentice License holder for 4 years Completed 7,500 hours of training under control and direction... of a licensed master plumber Advanced knowledge of the tools and materials related to the plumbing service field Must possess...