Power is generated from the rapids of Niagara Falls using a process called hydropower. Hydropower utilizes the force of falling water to turn turbines in power plants, which then generate electricity. The Niagara River has three main sets of rapids: Horseshoe Falls, American Falls and Bridal Veil Falls. Waterfalls create large amounts of energy that can be harnessed for power generation. Hydropower plants near Niagara are capable of generating up to 4 million kilowatts of electricity at any given time, enough to power around four million homes across Ontario and New York State.