by Charles F. Scott, but engineering problems and the general shortage of cash the company was going through was holding back development. Westinghouse eventually introduced their "Tesla" poly-phase transmission/motor system in 1893. Image gallery References External links Xcel Energy website for the plant Telluride Power Co. - Pioneering AC in the Rocky Mountains, by Alan E. Drew, ieee-pes.org Ames Hydro Plant description, with photos, movies, & links Energy infrastructure completed in 1891 Historic American Engineering Record in Colorado Hydroelectric power plants in Colorado Buildings and structures in San Miguel County, Colorado 1891 establishments in Colorado Xcel Energy dams