PSS Studies

Methodology  Steady state studies

Power flow study to identify the impact of the SHEP plant on the capacity of the grid system especially across different load areas. The studies will cover the assessment: – Under normal grid condition – Under contingencies where an N – 1 (Category B) contingency sweep across the transmission network (>= 132 kV) will be conducted; and N – 2 (Category C) contingency sweep for the transmission network (>= 132 kV) within the same load area. The different generation output of the plant will also be considered starting with maximum facility output (100%). If issues in the grid system are identified as attributed to the SHEP output then the generation output will be reduced in steps until the output level where it will not impact the grid system is identified. The impact on the grid system thermal capacity, steady state voltage performance and stability as required by the MGC and TSRS will be assessed.

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