EMTOC Microgrid Near Completion in Gaithersburg, Largest in U.S.
MCDOTApr 24, 2026
Construction on the David F. Bone Equipment Maintenance and Transit Operation Center (EMTOC) Microgrid Project in Gaithersburg is set to wrap up at the end of April 2026, having begun in June 2024. The system includes 4.84 megawatts of solar power and 2 megawatts of battery storage, making it the largest renewable-powered transit depot and transit depot microgrid in the United States. EMTOC will also be the first bus depot on the East Coast to produce green hydrogen on site and is designed to eventually support more than 200 zero-emission buses.
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Source: Montgomery County, MD, “April 2026 Ride On Newsletter”, received Apr 24, 2026.
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Key dates
2026-04-30
effective — EMTOC Microgrid construction completion
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