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					                                                                                                      Efficiency                                         11/21/2011




Closed Cycle Gas Turbine Power Plant (Project Life = 25 Years)
Plant & Fuel Efficiency
US Dollars in Thousands

Heat Rate of Plant
Heat rate at Generators (kCal/kWh HHV)                                      1.5141       57.0000      57%
Heat rate at Generators (kJ/kWh HHV)                                         6,338
Actual Auxilliary Usage (% of Generator Heat Rate)                           0.00%
Auxilliary Usage (kJ/kWh)                                                      0
Transformer Loss (% of Heat Rate After Aux.)                                 0.00%
Effective Net Heat Rate (kJ/kWh HHV) - Year 1                                6,338
Effective Net Heat Rate (Btu/kWh HHV) - Year 1                               6,008
Efficiency                                                       21-22%     56.80%

Fuel Characteristics
Assumed Fuel                                                                   Gas
No. of Joules per Calorie                                                     4,186
Btu to kJ conversion                                             1 BTU =     1.0550    kJ
                                                         100,000 BTU =     29.305556   kWh            3,412      BTU/kWh
                                                               1 kWh =        3,600    kJ
                                                          1      MT             =             1,000    KG

Gas Price (USD/GJ)                                                           1.83




Fieldstone Africa (Pty) Ltd                                                                            Page 21             58ebf584-6c86-45de-b5d6-024ca3eeb11f.xlsx

				
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