A very small hydro plant (for a single home) might be built in a couple of weeks. LARGE scale hydro plants, with large dams, may take decades to construct. The Three Gorges project in China began construction in 1994, and isexpected to be complete in 2012.
hydro electric power has been believed to have said that it lasts for around 50-70 years
As long as there is rainfall, yes.
solar powerwater (so long as it keeps on raining)wind power (ditto)hydro-electric power (ditto)wave, river, tidal and ocean power.
solar powerwater (so long as it keeps on raining)wind power (ditto)hydro-electric power (ditto)wave, river, tidal and ocean power.
power that is generatedby using river water
So long as you have a reliable source of water and you are not having a bad impact on the environment diverting and using this water it is a very environmentally friendly way of producing energy.
Hydro electric power is made quite quickly, once the infrastructure is in place. The infratructure can take several years to complete. Generating the power, however, takes a matter of seconds once water starts flowing into the turbines.
Hydro-power is the cleanest source of energy. It is powered by the force of flowing water which turns the generator to generate electricity. Considering the amount of CO2 released in the atmosphere and its consequential global warming effects, Hydro Power is considered safest, cleanliest and most favour form of generating power. Even the UNFCCC provides highest credit for Hydel Projects.
Hydro power depends on suitable water sources and terrain where you can build a dam to obtain the necessary head of water, so it can't be built anywhere, whereas a nuclear plant can be sited in most areas apart from earthquake zones, provided there is a supply of cooling water. So hydro is more limited in application, but I guess if there are the right conditions for building it, this will be the most economical in the long run, and there are no pollution worries. Nuclear plants should be compared with fossil fuel plants rather than hydro, as the choice is then more valid.
No, it is renewable, as long as the rain keeps filling up the dams.
As long as the rain keeps falling, keeping the dams full, then hydro-power is 100% sustainable.
Charles A. Falcone has written: 'Long range trends in the character of electric power systems' -- subject(s): Electric power systems