Operation
Coal is delivered to Jeffrey EC by a unit train. A unit train contains about 110 cars, constructed of aluminum to conserve weight, and is approximately 1 mile (1.6 km) long.
Jeffrey EC burns the coal delivered by about 11 miles (18 km) of coal train cars each week. The heating value of this coal is about 8,400 BTU/lb (19.5 MJ/kg) and at full load Jeffrey EC burns about 3,000,000 pounds (1,400 metric tons) of coal per hour.
Jeffrey EC has the capacity to generate 1,857 MW of electrical power.
Jeffrey EC is not located close to any large bodies of natural water. Its water supply comes from the Kansas River and two nearby wells.
The overall efficiency of the conversion process is about 33%, or about 1/3 of the coal's available chemical energy is converted to electric energy. The remainder of the energy (2/3) is rejected to the environment as low-grade waste heat with poor thermodynamic availability.
Steam generating (nuclear, gas, coal, geothermal, and solar furnace) energy centers, like Jeffrey, operate their steam plant on the Rankine cycle.
Read more about this topic: Jeffrey Energy Center
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