as long as it rains, and water is stored at a higher elevation than the turbine or impeller shaft of a machine. The power is stored as potential energy and is converted to kinetic energy by the power generating station. This station may convert this potential energy into electricity, in the case of a electrical generator, or the power can be used to directly power a shaft that will run machinery.
power that is generatedby using river water
No, it is renewable, as long as the rain keeps filling up the dams.
hydro electric power has been believed to have said that it lasts for around 50-70 years
yes, hydro-power is considered a renewable energy source because it is easily gained and easily "re-made". Other Examples of this is biomass, geothermal energy and windpower. non-renewable energy is considered anything that takes a LONG time to make, like millions and billions of years! an example is oil, coal or natural gas.
50 to 70 years
As long as there is rainfall, yes.
50 to 70 years
Geothermal power relies on the Earth's natural heat, which is estimated to last as long as the planet exists. This makes it a renewable and sustainable source of energy.
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.
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.
Tidal power is a renewable energy source that can last indefinitely as long as there are tides. Tidal power plants can operate continuously, generating electricity whenever the tides are moving in and out.
As long as the water flows, energy can be generated. It would be renewable.