Operations at one of Spain’s largest hydropower plants have been halted due to drought-like conditions, foreshadowing the future of the rapidly receding Lake Mead.

Electric utility company Endesa SA has shut down its facility in Mequinenza, Zaragoza, Spain after its water levels receded below 23 percent capacity, Bloomberg reported. This is below the minimum required to produce electricity. The plant first opened in 1966, and until now, has never been shut down.