ENERGY
Energy consumption and their sources (EN3 & EN 4)

Details of energy consumed in Tata Steel are exhibited in Table 5.3.

Table 5.3: Energy consumption at Tata Steel

Particulars 04-05 05-06
  Quantity Joules (1015) Quantity Joules (1015)
Power and Fuel Consumption        
1 Electricity        
a) Purchased Units (M.KWH) 1589.83 18.878 1871.27 22.220
b) Own Generation        
i) Through Diesel Generator Units (MKWH) 10.11 0.127 12.96 0.163
ii) Through steam turbine/generator Units (M.KWH) 1025.48 12.881 1018.88 12.798
2. Coal        
a) Coking Coal (Million Tonnes) 3.57 101.180 3.65 103.448
b) Blast Furnace Injection Coal Quantity (Million Tonnes) 0.22 5.527 0.38 9.546
c) Middling coal & ROM (Million tonnes) 0.62 11.521 0.64 11.892
3. Furnace oil (Kilo Liters) 10619.16 0.416 11160.68 0.437
4. Others        
  LDO (Kilo Liters) 6642.53 0.241 7093.81 0.258
  LPG (Tonnes) 2947.16 0.379 3387.25 0.436
  NG (Tonnes) 3120.86 0.118 2823.46 0.106
  Purchased Oxygen (t) 437200 2.063 537561 2.537

Consumption per unit of production is indicated in Table 5.4. The consumption per unit of steel production does not include the energy consumption in mines. The details of Mine energy consumption are furnished separately under EN17. The energy consumption at stockyards and marketing offices has also not been reported, as the same is insignificant.

Table 5.4: Energy consumption at various units per unit of production

Particulars Steel
(per tonne)
Tubes (per tonne) Bearings
(per no.)
Ferro Alloys
(per tonne)
Rings & Agrico
(per no.)
Growth Shop
(per tonne)
CRC West
(per tonne)
WIRE DIV.
(per tonne)
Electricity (KWH) 425.00
(414.00)
96.00
(117.00)
0.72
(0.79)
3829.00
(3828.70)
1.20
(1.19)
813.02
(506.89)
159.97
(158.38)
211.94
(213.34)
Furnace Oil (Liters) -
0.82
- - - - 16.24 (8.23) - 23.58
(22.76)
Coking Coal (Tonnes) (0.87) - - - (-) - - -
Others               -
Light Diesel Oil (Liters) 0.71
(0.58)
- - - - - 9.0
(10.84)
8.19
(9.15)
LPG (Kgs) - - - - - - 13.05
(13.42)
9.23
(7.04)
NG (Kgs) - - - - - - - 25.26
(25.41)

Note: Figures in brackets are for the year 2004-05 and are modified wherever necessary.

Energy efficiency and renewable energy initiatives (EN17)
The Steel Works have integrated iron & steel production facilities at Jamshedpur and its specific energy consumed was 29.15 G. Joule/tonnes of crude steel during 05-06. This is a decrease of 0.103 % over the previous year. The reducing trend of energy consumption per tonnes of steel production is depicted in Fig.5.7.