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Write any four advantages of hydropower plant.
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Advantages of hydropower plant: 1. There is no air pollution and other environmental problems. 2. The material means of power generation (water) is available freely. 3. No fuel transportation cost so; hence there is no needy of fuel handling equipment. 4. No treatment on fuel is required. 5. No fuel waste is produced (like ash) so, no waste disposal problem. 6. Fuel can be used again and again. ( Renewable energy sources) 7. Generating cost is less and reduces day by day. 8. It saves fossil fuels (coal diesel oil etc.) which are limitedly available and can be used for other purposes. 9. Less man power is required per MW so, running cost is less. 10. Layout is simple. Auxiliaries are considerably less than those in the case of a thermal power station. 11. Power generation can be controlled quickly & rapidly without any difficulty. (By simply controlling flow of water) 12. There are no standby losses. 13. Efficiency of plant is highest (above 97%) and does not change with age. 14. Operating & maintenance cost are very low. 15. The life of plant is longest. 16. In addition to generation of electric energy H.P.P. is also useful for supply of drinking water, supply of water for irrigation purpose and it control the flood also. 17. Since, hydroelectric stations are situated far away from populated areas so the cost of the land is low. 18. The cost per kWh of a hydroelectric station is not considerably affected by the load factor, as in the case of a Thermal / Nuclear /Diesel Power P. 19. It is very neat & clean plant.

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