Aluminium is a power intensive industry. The electrolysis process used to produce Aluminium requires large quantities of electrical power, cost of which is almost one-third of the total cost involved in production of Aluminium. The Direct Current (DC) required depends on the total number of cells or pots installed and the potline current involved. For meeting this huge power requirement most Aluminium smelters are equipped with their own Captive Power Plants.
Captive Power Plant I
- Capacity: 270 MW (4 X 67.5 MW)
- Location: Balco Plant, Korba
- Source of Coal: Gevra, Kusmunda & Manikpur Mines of South Eastern Coalfields Ltd. (SECL) in Korba.
- Source of Water: Hasdeo River
- Operation & Maintenance: BALCO’s own operation
Salient Features
- Primary Fuel : Thermal Coal
- Startup Fuel : LDO, Burning Oil & HFO
- Pulverizing System : Primary air system medium speed mill
- Water Source – DM water
- Steam turbine : Subcritical pressure, single reheating type, single-shaft, two cylinders, condensing steam turbine
Captive Power Plant II
- Capacity: 540 MW (4 X 135 MW)
- Location: BALCO Plant, Korba
- Source of Coal: Gevra & Kusmunda mines of South Eastern Coalfields Ltd (SECL) in Korba.
- Source of Water: Hasdeo River
- Operation & Maintenance: BALCO’s own operation
Salient Features
- Primary Fuel – Thermal Coal
- Start-up Fuel – LDO / HFO
- Pulverising System – Primary Air System with Vertical Roller Mills.
- Steam Turbine – Double cylinder, Impulse, Condensing and Nozzle & Throttle-governed turbine
- Turbo Generator – Air Cooled, Direct Coupled Generator, Static Excitation
Captive Power Plant III
1200 MW comprises of 4units of 300 MW each in which 2 Units are IPP and 2 Units are CPP.
- Capacity: 1200 MW (4 X 300 MW)
- Location: BALCO Plant, Korba
- Source of Coal: Gevra & Kusmunda mines of South Eastern Coalfields Ltd (SECL) in Korba.
- Source of Water: Hasdeo River
- Operation & Maintenance: BALCO’s own operation
- Installation / O & M: Balco’s own operation from 01.05.2016 onwards.
Salient Features
- Primary Fuel : Thermal Coal
- Startup Fuel : LDO, Burning Oil & HFO
- Pulverizing System : 5 Mills, ZGM133G Bowl Mill (4 Working + 1 Stand By)
- Water Source – DM water
- Steam turbine : Subcritical pressure, single reheating type, single-shaft, two cylinders, condensing steam turbine.
- CAPACITY : 1200 MW
- RAW MATERIAL : Coal, Water, Oil
- TECHNOLOGY : Thermal Power Plant with Pulverized coal fired boiler.
- BOILER :
- Manufacturer – HARBIN BOILER CO. LTD.
- Type – Natural Circulation, Sub critical, Reheat, Drum type & Corner firing.
- Capacity – 1025 TPH (BMCR),Operating SH Pr. 17.39 Mpa.
- TURBINE :
- Manufacturer – DONG FANG TURBINE FACTORY LTD.
- Type – Sub Critical, Reheat, Single Shaft. Double cylinder & Condensing Steam Turbine
- Capacity – 300 MW (normal); 3000 RPM
- GENERATOR :
- Manufacturer – DONG FANG ELECTRICAL MANUFACTURING CO. LTD
- Type – 2 Pole, synchronous generator at 20 KV and 10189 amps rated current with hydrogen cooled rotor and water cooled stator.
- Capacity – 300 MW (normal)