List of longest running hydroelectric power plants

This is a list of oldest hydroelectric power plants that are in operation.

More than 100 years

• Ames Hydroelectric Generating Plant, constructed in 1890, 134 years old.
• Appleton Powerhouse, USA, 2.2MW, constructed in 1901, 123 years old.
• Big Quinnesec Falls, USA, 4.4 MW, constructed in 1914, 110 years old.
• Brule powerstation, Wisconsin, USA, 5.3 MW, constructed in 1919, 105 years old.
• Fala Hydro Power Plant, Slovania, constructed in 1918, 106 years old.
• Pharping Hydropower Station, Nepal, 500kW, constructed in 1911, 113 years old.