Cayuga Generating Station is an electricity-generating facility, located in Eugene Township, Vermillion County, near Cayuga, Indiana. Its almost identical, coal-fired units 1 and 2 were launched into service in 1970 and 1972, and have a combined name-plate generating capacity of 1,062 MWe. Unit 4 (121 MWe, launched in 1993) is powered by natural gas, but can also be switched to oil. There are also four minor oil-fired units (numbered 31–34, 2.6 MWe each) of internal combustion design.