Question

brief note on hydel power

Answer 1

Mini or Micro Hydro power

Hydro power is one of the best, cheapest, and cleanest source of energy, although, with big dams, there are many environmental and social problems as has been seen in the case of the Tehri and the Narmada Projects. Small dams are, however, free from these problems. This is in fact one of the earliest known renewable energy sources, in the country (since the beginning of the 20th century).

In fact, for the last few hundred years, people living in the hills of the Himalayas have been using water mills, or chakki, to grind wheat. The 130 KW small hydropower plant in Darjeeling set up in 1897, was the first in India. Besides being free from the problem of pollution, such plants are also free from issues and controversies that are associated with the bigger projects, namely affecting the lives of thousands of people living along the banks of the rivers, destruction of large areas under forest, and seismological threats.

New environmental laws affected by the danger of global warming have made energy from small hydropower plants more relevant. These small hydropower plants can serve the energy needs of remote rural areas independently. The real challenge in a remote area lies in successful marketing of the energy and recovering the dues. Local industries should be encouraged to use this electricity for sustainable development.

It is a technology with enormous potential, which could exploit the water resources to supply energy to remote rural areas with little access to conventional energy sources. It also eliminates most of the negative environmental effects associated with large hydro projects.

Answer 2

it shydropower or waterpower.derived from energy of falling water or fast running water.hydropower from many kinds of watermills has-been used as a renewable energy source.for irrigation and the operation of various mechanical devices such as sawmills textile mills dock cranes domestic lifts and ore mills.a trompe which rodUces compressed air from falling water,is some times used to power other mechinary at a distance.in1th century it became the source for generating electricity.worldbank view hydropower as a means for economic development without adding substantial amount of carbon to the atmosphere.but dams can have significant negative social and environmental impacts