sentences:  The Power House and spillways are owned and operated by Ameren Missouri and has a 142 MW capacity.The powerhouse contains 15 generators, originally designed to produce 25 Hz instead of the 60 Hz alternating current used today.Keokuk and Hamilton Water Power landed contracts in 1910 to deliver 44.7 MW of electricity to three customers located in St. Louis, MO (more than 100 miles downstream), at a time when no electric power had been transmitted more than a few miles