 However, because the head (difference between reservoir level and the river level at the foot of the dam) that actually occurs is higher than the designed head (), the power available exceeds 750 MW half of the time for each generator.Each turbine generates around 700 MW; by comparison, all the water from the Iguaçu Falls would have the capacity to feed only two generators.On November 10, 2009, transmission from the plant was completely disrupted, possibly due to a storm damaging up to three high-voltage transmission lines.