Training Center Petaluma is the Coast Guard’s largest West Coast Training Center. – U.S. Coast Guard photo. ALAMEDA, Calif. — Coast Guard Training Center (TRACEN) Petaluma is scheduled to host a groundbreaking ceremony for a renewable energy microgrid on the base Friday at 3:30 p.m. The primary purpose of the microgrid is to enhance TRACEN Petaluma’s resiliency, which stems from the...