Porjus is a locality situated in Jokkmokk Municipality, Norrbotten County, Sweden with 328 inhabitants in 2010. Geographically it is situated by the shores of Lule River at 499 meter height. Porjus is known for having one of the oldest hydropower plants in Sweden (Porjus kraftverk - Porjus hydroelectric power station), built 1910–1915. The power plant was built to deliver electricity to the building of the railroad between Luleå and Narvik, where the mining industry shipped iron ore. Today, Porjus is a living village and the old power plant is a popular tourist attraction among many others.
https://en.wikipedia.org/wiki/Porjus