How many hydroelectric stations were built on the Volga River?

There are a total of eight hydroelectric stations built on the Volga River. These stations are part of a series of reservoir complexes that have transformed the river from a free-flowing waterway into a chain of man-made lakes, which also include navigation locks.1

In addition to the stations on the Volga, there are three hydroelectric stations located on its major tributary, the Kama River, bringing the total for the combined system to eleven stations. Together, these facilities provide an installed generating capacity of approximately 11 million kilowatts of power.1