. In some plants, renewal fuels such as biogas are co-fired with coal.
Thermal Power in India
Thermal Power Karthik Madhavan SCMHRD, Pune.
Facts• Convert energy rich • Other sources - landfill fuel into electricity and gas and biogases heat. • Electricity consumes• Accounts for over 65% 80% of the coal of Indias generated produce. electricity. • Coal and lignite - 57%• Fuels - coal, natural of installed capacity. gas, petroleum • Low calorific value and products, agricultural high ash content of waste and domestic Indian coal. trash / waste.
Current Status• Installed capacity of Thermal Power in India is 1,41,327.18 MW which is 66.99%.• Coal Based Thermal Power is 1,20,103.38 MW which comes to 57.38%.• Gas Based Thermal Power is 18,903.05 MW which is 9.03%.• Oil Based Thermal Power is 1,199.75 MW which is 0.57%.• On average, about 0.7 kg of coal to generate a kWh.• Indian coal has a GCV of about 4500 Kcal/kg.• Maharashtra is the largest producer of thermal power in the country.
Current StatusGenerators MW %State 58,089 41.10Central 42,094 29.78Private 41,144 29.11 Total 1,41,327 100 Source: Ministry of Power
Technologies• Steam cycle facilities• Gas turbines• Cogeneration and combined cycle facility• Internal combustion
Issues• Maintenance and operating costs are high• Long time required for erection and putting into action• A large quantity of water is required• Great difficulty experienced in coal handling• Presence of troubles due to smoke and heat in the plant• Unavailability of good quality coal
Issues• Maximum of heat energy lost• Problem of ash removal• Thermal efficiency is just about 45%• Clearances from Ministry of Environment and Forests• Land acquisition• Site accidents due to process hazards, bad plant designs, technical errors, inadequate training of personnel employed• Coal shortage
Recommendations• Informed decision making• Clear procedures and standards for environmental aspects• Make energy auditing compulsory to ensure optimal power utilization• Natural air flow and other low power demand utilities to beat the power needs• Ancillary industries to be set up near thermal power plants