Hydroelectricity the cheapest power option

Started by ganeshbala, Nov 17, 2009, 11:26 AM

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ganeshbala

Hydroelectricity the cheapest power option

Rivers have always been revered for the life and fertility they bring to communities. Even when the waters rise in flood, they renew the land.

Ancient Egyptians, for instance, eagerly awai­ted the annual flooding of the Nile. The silt kept the land from losing its fertility. It's not for nothing that it has been called the "gift of the Nile".

Indeed, rivers are an imperative for community living and virtually every civilisation has a sacred river.

What if this power could be controlled, to irrigate land, to produce power? Water mills are, after all, one of the oldest examples of the use of hydropower, used to grind grist.

So the canal builders and the weir makers have a special place in the order of reverence. And then came hydroelectricity, thousands of millions of watts of electric power generated by channelling rivers to turn giant turbines. At one stroke men became like gods.

They could control and direct nature to their exclusive benefit. There were doubters, as always, but they were dismissed as Luddites.

The 20th century was the high point of the cult of dam builders, and independent India's first prime minister called them the "temples of modern India".

As the years passed into decades the dams proliferated, some of the rowdiest rivers were tamed, vast tracts of land irrigated and millions of watts of cheap clean power produced to light homes and turn the wheels of industry.

pradeep prem

this is greater idea
it can produce for all time with dam water
with use of turbine