Denver's second electric company - the LaCombe Electric Company - built their plant at the corner of 14th St. and the South Platte River in 1900. The original plant consisted of two brick buildings, side by side, one of which made power for street arc lights, the other of which produced commercial power. The smaller brick building on the left is the arc light plant as it was in 1920. The buliding on the right is a larger generating plant built in place of the commercial power building in 1918.

LaCombe Electric was crushed in a rate war with the incumbant Denver Gas and Electric, and was bought out by DG&E in 1902.

The plant itself still exists today as Xcel Energy's Zuni plant. Part of the arc light generating building is still present in the existing structure.