Part 1: Generators at the Historic Folsom Hydro Power House in Folsom, California. Tour with Power House Docent Bill Henning. Learn about the forebay, see the turbines, see the original generators built by Elihu Thomson at GE. This powerhouse preceeded the Niagara Falls installation by Westinghouse. Part 1 of 3 videos on the Folsom Power House.