Mechanicville Hydroelectric Plant is a 18.3-acre (7.4 ha) national historic district located at Mechanicville in Saratoga County, New York. The listing included one contributing building and three contributing structures. The district dates to 1897 and includes notable Queen Anne architecture. It was listed on the National Register of Historic Places in 1989. The station was designed to produce 5000 kilowatts from seven hydraulic turbine-generator units. Extensive renovations starting in 2003 have turned the plant into a working museum.