Complex sentence: The water that cools the pipes is used in a turbine generator to generate electricity because of the supper heating of the water the pipes ware out which is the cause the San Onofe Nuclear power plant being shut down.
Split into simpler sentences: The water that cools the pipes is used in a turbine generator to generate electricity. The supper heating water that flows through the pipes ware out the pipes which is the cause the San Onofe Nuclear power plant being shut down.