Hydroelectric power generation is particularly interesting as the fundamentals of the technology is basically the same as it was more than hundred years ago. The big brains that invented the three-phase generator and basic water turbine designs certainly understood what they did, long before computers and sophisticated numeric hydrodynamics models were available.
However, in a country like Sweden with its large built base of hydroelectric power, dams have been modified and enlarged and stations rebuilt and modernized. More importantly, all smaller installations today are completely automated, unmanned and remote controlled. Naturally, this development has rendered a large number of stations, particularly smaller ones obsolete.
This particular station with its 2 x 500 kW generators was put into built in 1906 and appears to have been in continuous service until 1992 when it was replaced with a new anonymous installation a bit upstream. It is amazing to imagine that this station delivered almost 90 years service with seemingly the same equipment and installations that are seen on pictures from the very early days. Today, the station is forgotten and has been absorbed by the surrounding forests.