Hydroelectric power:
This uses the potential energy of water and converts it into kinetic energy. This method could be used if water is falling from a high altitude by running turbines and producing electricity.
Electrolysis:
By electrolysis of Demineralised water Hydrogen evolves in the cathode and this could be burnt to obtain energy.
Evaporation Method:
Purified water could be evaporated and made into super heated steam and using this turbines are operated to produce energy.
Of all the three processes Hydroelectric power is the most economical and environment friendly method. Electrolysis method is still not a commercial success as cost of making energy is very high when compared to the conventional methods
Evaporation method is used only in places where there is plenty of fuel available like in Gulf countries where they could not even fully use the natural gas when they drill for oil. More plants of this type are set in those areas
Electrolysis. Use electric current to break up the hydrogen and oxygen. Obviously, you have to add energy to the water to break up the molecule, but if the energy is cheap, then water can act as a battery by storing energy.
Kinetic. Run water through a turbine, create energy. You'd need a dam or a really steep drop and lots of pipe and a pelton wheel. Again, water functions more as a battery, storing solar energy in the form of potential kinetic energy. If rocks evaporated and rained down on the highlands, you could harvest their kinetic energy as they rolled down the hills. Hopefully you get the idea.
Of course, water was the first thing to give energy on earth.
You get in a boat, and the water takes you downriver, there's energy.
You set up a waterwheel, and the water turns the wheel, and creates energy used to grind bread, make electricity, etc.
Fuel cells combine hydrogen gas and oxygen gas, and create electricity to power cars, with only water as the byproduct.
Or you can take the water molecule, and take it apart, and it creates an atomic bomb.
Or the 90% of the water in your body can help keep you alive.
That's good energy right there.
If water is way up high, you can let it fall down and extract some of its potential energy on the way down, with turbines. That's how hydroelectric dams work.
If water is real hot and under pressure, you can release it into a cooler, lower pressure environment, and capture some of the heat and pressure as energy on the way out with turbines again. That's how coal fired and nuclear powered generators work.
You can't actually get energy just from the water itself though.
Yes,it is possible to get energy form water named as hydroelectricity.It is the cheapest and renewable natural resource.
In the core of a star with at least 80 Jupiter masses of gravity. Those water powered car things are scams. Water is a low energy stable chemical and does not react chemically to form any chemical with a lower energy content, you can use energy to react it to hydrogen and oxygen which can react chemically to form water again but it takes more energy to turn water to hydrogen and oxygen then you get back by burning the hydrogen and water. Even if we find an efficient way of doing so, you would get no more energy than what you put into it.
yes
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Yes. Steam energy, hydro power and cars that run on water.
70% of our body contains water so of course water gives energy,
Yes.
And, they did so in the 1800s.
Not unless you add something to it.
hydroelectricity
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