ENERGY AUDIT MANUAL FOR COAL INDIA LTD. & SUBSIDIARY COMPANIES

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Coal India Limited besides being the major producer and seller of Energy, is also one of the largest consumer of it. CIL will need electric power of about 1003 MW in 1989-90 and 1887 MW by 2000 A.D. to achieve the targeted coal production of 196 million tonnes and 370 million tonnes in respective years. Need for higher production by increased mechanisation, reorganisation, amalgamation, deeper operation and installation of coal handling equipments for supplying improved quality of coal to consumers has resulted in higher demands of energy consumption in coal mining operation.

In VII Plan the total National demand of electricity is expected to grow at the rate of 12.2% per annum and reach a level of 223 billion Kwh by 1989-90 from the level of 125.74 billion Kwh in 1984-85. The power demand of CIL will increase from 739.5 MW in 84-85 to 1003.0 in 89-90.

At present the transmission losses in India are about 21% while the same are about 6 to 12% in developed countries. If the transmission losses are brought down by 5% by 89-90 there will be a net saving of 14.77 billion Kwh of National basis. If 1% saving is effected by consumers a net saving of 2.23 billion Kwh is possible by 89-90.

Total installed capacity of power in India today is over 50,000 MW. Every additional MW of Thermal Power generation requires an investment of 1 to 1.5 crores. If average P.L.C. in the country can be increased from the present level of 51% every 2% saving will give us 1000 MW extra equivalent to about Rs. 1500 crores.

As a policy therefore, Coal India Ltd., is emphasising the need of energy conservation in coal production by efficient means of extraction, handling, utilisation and optimisation of coal, electricity and hydrocarbon fuel consumption. Coal India Ltd., initiated Energy Audit studies in its mines and plants to identify conservation opportunities. National Productivity Council which has considerable experience in this field was requested to assist in this endeavour and prepare an Energy Audit Manual for Coal India. A team of engineers from CIL and NPC visited 14 mines situated at subsidiaries of CIL and carried out Energy Audit studies. The audit reports indicate an energy saving potential of about 5% of the mines audited. Based on the above work Energy Audit Manual has been prepared along with case studies.

It is expected that CIL engineers after going through the Manual and illustrated case examples will be able to carry out Energy Audit activities in their sphere of operation. It is heartening to note that CIL could reduce their energy costs by about Rs. 5 crores in 1987-88. It is expected that the Energy Audit Manual will assist our engineers to achieve further savings in energy. Potential in Energy saving is large and we in Coal India must strive at all levels in our activities to conserve as much of Energy as possible. Energy saved is Energy produced without investment.

Case Studies/ Collier

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