Typically, this can be quite costly to power plants in the form of reduced output, increase fuel consumption and increased CO emissions.
It was the first quarter of reduced output recorded in Singapore since the mid-1980's.
But the likely price, $100 billion a year in reduced output for the American economy alone, would be nothing to sneeze at.
The shortfall translates into a reduced output of graduates in 2015, just when they will be most needed.
The plant was officially opened in September 2011 at reduced output.
For the moment, however, there are reasons to wonder if this is the start of another season of reduced output.
The wires become filled to their capacity, and the system operator has to order reduced output from power plants.
People may simply keep their present employees and work them harder for the same time, or find ways to cope with the reduced output.
But the reduced output will mostly be in Disney's adult films, not its family movies or animated features.
They responded accordingly - reduced output in response to an increase in σ.