The 1921 hydroelectric dam was built on the remains of an earlier effort dating back to 1858 which had been destroyed two years after it was built by the strongest documented flood in the history of the River Duero.

The energy generated was put to industrial use and also used for pumping of water for irrigation and to mechanise the farm with an electric plow.

Today, this weir dam has a 4 meter drop and a flow rate of 3000 liters per second. The plant consists of two vertical axis Francis turbines with a 270 kV synchronous alternator each. In addition, it is fitted with three 110 HP water pumps to irrigate the farm’s various crops.