Public Notice : Notice issued under section 64(2) of the Electricity Act 2003
2009-10

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3. Generation Performance and Projection

3.1 Generation Performance

The Petitioner has existing generation facility of 420 MW (2x210 MW) coal based thermal power plant at Bokaro and is also envisaging a plan for extension of another three units (Stage II) of 210 MW each.

Table 1 provides the performance of the generating units for the past four years and the projected generating units for 2009-10.

Table 7: Generation Performance Actual (MU)

Year	Generation (MUs)		Total	Station PLF (%)	Auxiliary Consumption (%)
Year	Unit –I	Unit-II	Total	Station PLF (%)	Auxiliary Consumption (%)
2005-06	1240	289	1529	41.56	14.23
2006-07	1412	1303	2715	73.80	12.04
2007-08	226	1569	1795	48.86	9.95
2008-09	826	1397	2223	60.43	8.37
2009-10	1500	990	2490	67.68	9.00

With the overhauling of unit I, petitioner expects the generation performance to further improve for FY 10.Also, unit II would be under capital maintenance for a period of three months, thereby generating only 990 MU.

3.2 Plant Load Factor (PLF)

A PLF of 67.68% is being projected for the plant in FY10. This increase is projected largely due to the availability of the first unit and better performance of unit II. As Unit II is expected to be available only for 9 months, the projected PLF is still lower than the normative value.

Table 8: Projected Generation Performance for FY10

Year	Generation (MUs)	PLF (%)
2007-08	1795	48.86%
2008-09	2223	60.43%
2009-10	2490	67.68%

3.3 Auxiliary Consumption

The auxiliary consumption is specific to a particular power station and depends on its configuration, age and related technical parameters. Auxiliary power is required for different equipments like feed pumps, cooling water pumps, air fans, coal grinding mills, ash handling equipments, common auxiliaries etc. of the generating station. The auxiliary consumption was 8.37% in FY 2008-09. Petitioner projects its auxiliary consumption at 9% for FY 10

Table 9: Auxiliary Consumption for FY’10

Year	Auxiliary Consumption (%)
2008-09	8.37
2009-10	9.00

3.4 Heat Rate

The actual heat rate for the generating plant has been 3075 kCal/kWh for the FY 2008-09, In the year 2009-10, petitioner proposes a heat rate of 3100 Kcal/kWh and hence would maintain the last year performance.

Table 10: Projected Heat Rate for FY’10

Year	Heat Rate (kCal/kWh)
2009-10	3100

3.5 Specific Coal Consumption

The Petitioner sources D grade coal from the collieries of Central Coal Fields Limited with calorific value of about 4200 kCal/kg.

Table 11: Specific Coal Consumption

Year
Year	Specific Coal Consumption (kg/kWh)
2000-01	0.705
2001-02	0.706
2002-03	0.695
2003-04	0.680
2004-05	0.685
2005-06	0.688
2006-07	0.656
2007-08	0.689
2008-09	0.715
2009-10	0.720

The Hon’able Commission has followed a trend of fixing a very stiff target for specific coal consumption. CEA reports on performance of thermal power plants have always brought out the fact that eastern region plants have a higher average values. The petitioner has always been achieving better figures in the region. Petitioner thereby requests the Honorable Commission to consider the specific coal consumption of 0.720 Petitioner in its generation plant for FY 10

Table 12: Specific Coal Consumption for FY’10

Year	Specific Coal Consumption (kg/kWh)
2009-10	0.720

3.6 Secondary Fuel Consumption

Due to the large number of outages experienced by the station due to transmission line trippings etc., the Petitioner has not been able to achieve the norm of 2 ml/kWh fixed by the Honourable Commission for specific oil consumption. The Petitioner observed a specific oil consumption of 2.78 ml/kWh during FY 2008-09 The following Table 7 below provides the trend in specific oil consumption over the last 7 years.

Table 13: Specific Oil Consumption

Year	Specific Oil Consumption (ml/kWh)
2004-05	2.33
2005-06	3.39
2006-07	2.31
2007-08	1.95
2008-09	2.78

Petitioner is planning to reduce its oil consumption and improve the specific oil consumption figure. Petitioner projects a specific oil consumption of 2.5 ml/kWh

Table 14: Projected Specific Oil Consumption for FY’10

Year	Specific oil consumption (ml/kWh)
2009-10	2.50

3.7 Summary

The Petitioner projects the following for the FY 2008-09:

Table 15: Projected Generation Parameters for FY’07

Year	Generation (MU)	PLF (%)	Auxiliary Consumption (%)	Heat Rate (kCal/kWh)	Specific Coal Consumption (kg/kWh)	Specific Oil Consumption (ml/kWh)
2000-10	2500	67.68%	9	3100	0.720	2.50