Read more about the Sunnyside Powerhouse and the San Francisco and San Mateo Electric Railway.
To add to the recently revealed photo of the Sunnyside Powerhouse, here are five more images from the same album at the San Mateo County Historical Association, including unseen interior shots from the engine room. They were taken by a photographer from the company that supplied the engines, Risdon Iron Works, on the occasion of the opening of the powerhouse and the new electric streetcar line in April 1892.
These new photos are unmatched by any other known ones of Sunnyside’s lost landmark, all of which date to after the powerhouse ceased to operate in 1901. These show a car house and power plant just constructed, ready to revolutionize San Francisco’s urban railways with the introduction of electricity for propulsion. For the first time, the machinery of the powerhouse engine room can be seen.