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State of Rajasthan - Section

Section 46 in Rajasthan Electricity Regulatory Commission (Terms and Conditions for Determination of Tariff) Regulations, 2009

46. Norms of operation.

- The norms of operation as given hereunder shall apply:
(1)Target Availability for recovery of full Capacity (Fixed) charges for thermal power stations
(a) (i) Kota TPS and Suratgarh TPS 82%
  (ii) Other coal, lignite and gas based thermalpower stations 80%
  (iii) Lignite fired thermal power stations usingCFBC technology:
  For the first year of operation 70%
  For second year of operation 72.5%
  For third year of operation 75.0%
  For Fourth year of operation 77.5%
  Fifth year and onwards 80.0%
(b) Ramgarh Gas thermalpower stations 70%
(2)Target Plant Load Factor for Incentive
(a) (i) Kota TPS and Suratgarh TPS 82%
  (ii) Other coal, lignite and gas based thermalpower stations380%  
  (iii) Lignite fired thermal power stations usingCFBC technology:
  For the first year of operation 70%
  For second year of operation 72.5%
  For third year of operation 75.0%
  For Fourth year of operation 77.5%
  Fifth year and onwards 80.0%
(b) Ramgarh Gas thermal power stations 70%(based on gas availability)
(3)Gross Station Heat Rate - For existing stations
(a)Coal-based thermal power generating stations,
Sl. Unit Size Gross Station Heat Rate (kCal/kWh)
1. 110 MW 3000 kCal/kWh
2. More than 110 MW and upto 250 MW 2500 kCal/kWh
(b)Lignite-fired thermal power generating stations
The gross station heat rates specified under clause (a) above for coal-based thermal power generating stations shall be corrected, using multiplying factors as given below:
(i)For lignite having 50% moisture: Multiplying factor of 1.10
(ii)For lignite having 40% moisture: Multiplying factor of 1.07
(iii)For lignite having 30% moisture: Multiplying factor of 1.04
(iv)For other values of moisture content, multiplying factor shall be pro-rated for moisture content between 30-40 and 40-50 depending upon the rated values of multiplying factor for the respective range given under subclauses (i) to (iii) above.
(v)Moisture content be determined at the stage of firing.
(c)
(i)Gas Turbine/Combined Cycle generating stations
Open cycle - 2830 kCal/kWh
Combined cycle - 1950 kCal/kWh
(ii)Ramgarh GTPS
Open Cycle - 2925 kCal/ kWh for FY 2009-10 with annual reduction of 15kCal/kWh
Combined Cycle - 1950 kCal/kWh for FY 2009-10 with annual reduction of 10kCal/kWh
Note: - The annual reduction be applicable till the target heat rate as mentioned at (i) above is achieved.
(4)Gross Station Heat Rate - For new Generating stations,
(a)Coal and lignite based thermal power generating stations
= 1.065 X Design Heat Rate (kCal/kWh)Where the Design Heat Rate of a unit means the unit heat rate guaranteed by the supplier at conditions of 100% MCR, zero percent make up, design coal and design cooling water temperature/back pressure.Provided that the Design Heat Rate shall not exceed the limit as specified under Regulation 26(ii)(B)(a) of CERC (Terms and Conditions of Tariff) Regulations, 2009 including amendments thereof shall be applicable.(Appendix-2)
(b)Gas-based / Liquid-based thermal generating unit(s)
= 1.05 X Design Heat Rate of the unit for Natural Gas and RLNG (kCal/kWh)= 1.071 X Design Heat Rate of the unit for Liquid Fuel (kCal/kWh)Where the Design Heat Rate of a unit shall mean the guaranteed heat rate for a unit at 100% MCR and at site ambient conditions; and the Design Heat Rate of a unit shall mean the guaranteed heat rate for a unit at 100% MCR, site ambient conditions, zero percent make up, design cooling water temperature/back pressure.
(5)Secondary fuel oil consumption
(a)Coal-based generating stations: 1.0 ml/kWh
(b)Lignite-fired generating stations: 3.0 ml/kwh
(6)Lime stone consumptionNormative lime stone consumption for lignite based generating station using CFBC technology shall be computed in the following manner:Limestone consumption (kg/kWh) = 0.056 x normative specific lignite consumption (kg/kWh) Savg (%)Savg = Weighted Average inorganic sulphur content in lignite
(7)Auxiliary Energy Consumption
(a) Coal-based generating stations:  
  i. For above110 MW and up to 250 MW units  
  (i) With cooling towers 9.0 %
  (ii) Without cooling towers 8.5 %
  ii. For 110 MW capacity units at KTPS 10.5%
  iii. For 195 to 250 MW units at KTPS and STPS 9.0 %
  iv. 500 MW units  
  i. Steamdriven boiler feed pumps  
  (i) Withcooling towers 7.0%
  (ii) Withoutcooling towers 6.5%
  ii.Electrically driven boiler feed pumps  
  (i) Withcooling towers 8.5%
  (ii) Withoutcooling towers 8.0%
(b) Gas Turbine/Combined cycle generating stations:  
  (i) Combinedcycle 3.0%
  (ii) Opencycle 1.0%
Note. - For Ramgarh GTPS additional auxiliary consumption of 3% for open cycle and 2% for combined cycle for number of days gas compressors are used.
(c)Lignite-fired thermal power generating stations:
i. The auxiliary energy consumption norms shall be 0.5 percentage point more than the above auxiliary energy consumption norms of coal-based generating stations at (7) (a) (I) above.ii. Lignite based generating station with CFBC technology 11.5%Note. - The auxiliary consumption shall include electricity consumption towards water pumping operation up to the pipeline distance of 50 Kms. The treatment for additional energy consumption and cost thereof for pipeline beyond 50 km shall be in accordance with the Regulation 48.
(8)Transit LossesNormative transit and handling losses for fuel based generating stations, as a percentage of quantity of fuel dispatched by the fuel supply Company during the month:
(a)Coal/lignite supply
(i) Pit head generating stations- 0.15%
(ii) Non-pit head generating stations  
2009-10 2010-11 2011-12 2012-13 2013-14
1.5% 1.3% 1.1% 0.9% 0.8%
(b)Liquid or any other fuel -
(9)In case of considerable variance in the norms and actual value in the year immediately preceding the tariff period, the Commission may allow the generating company to achieve the normative level over a period of time.