In May 1964 the Baltimore Light was fully automated and became the first atomic-powered lighthouse in the world. A small atomic reactor, developed by the Martin Company in a joint effort with the U.S. Coast Guard and the Atomic Energy Commission, was installed. Similar in size to a 55-gallon oil drum, the reactor was intended to supply continuous electricity for 10 years without refueling. Never getting beyond the experimental stage, the reactor was removed around a year later and the concept was never pursued further.