Ad from Western Electric Co. offering electric-power generators for lighting systems. Note also the ad from The Electrical Accumulator Co. for batteries, and from Poole & Hunt for a turbine water-wheel. Storage batteries were sold for use as load-leveling devices for many years. Early water-turbines adapted from mills changed to more specialized designs as engineers became more familiar with the technology.
From Electrical World, 1887.
National Museum of American History, SI negative # 78-17694