Up to March 2011 it was averaging a capacity factor of 39%.
However, solar and wind plants have relatively low capacity factors.
As a result the actual capacity factor of the station is less than 5%.
There are several reasons why a plant would have a capacity factor lower than 100%.
They are among the world's most productive, with average capacity factors of 94% in the 1990s.
For commercial operation, a capacity factor of at least 35% is preferred.
Many have capacity factors, the measure of a plant's reliability, well below the national average.
The design also has an expected capacity factor of 90%.
Between 2007 and 2010, the capacity factor was around 30%.
The average capacity factor for the first five full years of operation was 27.2%.