High Quality Content by WIKIPEDIA articles! The Paatsjoki River hydroelectric power plants are a series of hydroelectric installations on the Paatsjoki River.The Paatsjoki River flows from Lake Inari in Finland and for most of its duration, it marks the border between Russia and Norway. On the river there are several Norwegian and Russian hydroelectric stations. The operations of the stations is governed by several international agreements (Agreement between the Soviet Union and Norway on 18th of December 1957 about the usage of hydroelectric installations on the Paatsjoki River