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So they all say hydropower is a renewable energy source. Hydropower is considered renewable energy (https://www.energy.gov/eere/water/how-hydropower-works
Wiki classifies hydro as renewable:
Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat
Hydropower is renewable or not. Quiz ques answer it as renewable
Penn state Uni regards it as renewable by def: Hydropower is the most widely used renewable energy source for generating electricity.
And the list goes on....

All resources online classify hydro as a renewable source.

However, water is from the rain which is formed from vapor that rises, cool, and changes into tiny water droplets, which form clouds.
We have huge water sources in the world However in a theoretical scale it can be depleted and due to this, it should be classified as a nonrenewable source.
What do you all think?
 

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Matter (without article) is most commonly defined as any (physical) substance that has mass and takes up space. Water is a transparent fluid and a Liquid . ... Water takes all three common states of matter in nature : solid , liquid and gas. Water is liquid at standard temperature and pressure.


The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be ... The law implies that mass can neither be created nor destroyed, although it ...
 

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I think there are ten to fifteen little bitty snails that are almost extinct from that big dam they built down there at the Arizona Nevada Border. So me an Greta agree that they should tear down the damn dam............ to save them poor little bitty ten snails...........



We're gonna line em all up against the wall............
 
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The energy source for hydroelectric is not water, it's the heat from the sun that causes the water to evaporate. No water is lost in the process, it just washes by the turbines.

Likewise the sun is the energy source for wind, not air, you don't use up the air that passes the rotors of the fans.

Of course the sun's energy is just as finite as fossil fuels, by using it we are just burdening future generations when the sun goes out :biggrin:

Now nuclear power, that will still be good to go when the sun goes out, as long as we have the fissile materials.
 

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The only difference between those oxymorons and renewable energy is that renewable energy is a term that was invented to decieve.
 

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The energy source for hydroelectric is not water, it's the heat from the sun that causes the water to evaporate. No water is lost in the process, it just washes by the turbines.

Likewise the sun is the energy source for wind, not air, you don't use up the air that passes the rotors of the fans.

Of course the sun's energy is just as finite as fossil fuels, by using it we are just burdening future generations when the sun goes out :biggrin:

Now nuclear power, that will still be good to go when the sun goes out, as long as we have the fissile materials.

I almost have my portable Cold Fusion generator running.
Just need a couple investors and a tax break.
Triple return on the dollar. :wink:
 

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However, water is from the rain which is formed from vapor that rises, cool, and changes into tiny water droplets, which form clouds.
We have huge water sources in the world However in a theoretical scale it can be depleted and due to this, it should be classified as a nonrenewable source.
What do you all think?

Your wrong, BUT ... If one really thought we were going to run out of water, why would you only worry about how it is classified :vs_worry:


And engineers wonder why we talk down to them :biggrin:
 

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In the UK they run the some generators as motors during the night and pump the water back into the dam so technically they don't loss any water.
 

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Your wrong, BUT ... If one really thought we were going to run out of water, why would you only worry about how it is classified :vs_worry:


And engineers wonder why we talk down to them :biggrin:
Global warming will cause all the water to evaporate....


Except in Canada. But that’s only because they have snow and no water.
 

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We have huge water sources in the world However in a theoretical scale it can be depleted and due to this, it should be classified as a nonrenewable source.
What do you all think?
Theoretical scale? You just blew yourself up. If some theoretical event stops the water cycle of the planet, hydroelectricity will be the least of your worries.
 

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Hydro is really the only sustainable solar power there is. It is just solar pumped-storage. Every day the sun moves an amount of water so large that the combined industrial might of the world couldn't do it at full-run. It transports it to elevations no infrastructure supports. And then it washes down again in convenient channels.

As a society, if we could stop playing monkey for a bit, we could build a great hydro plant that supplied more than enough energy. Carefully planned, it could have minimal effect on the environment and wildlife. Maybe even beneficial to the wildlife. But we like to play monkey instead.
 

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Global warming will cause all the water to evaporate....


Except in Canada. But that’s only because they have snow and no water.
You get a sizable chunk of your electricity from our snow turbines.
 
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So they all say hydropower is a renewable energy source. Hydropower is considered renewable energy (https://www.energy.gov/eere/water/how-hydropower-works
Wiki classifies hydro as renewable:
Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat
Hydropower is renewable or not. Quiz ques answer it as renewable
Penn state Uni regards it as renewable by def: Hydropower is the most widely used renewable energy source for generating electricity.
And the list goes on....

All resources online classify hydro as a renewable source.

However, water is from the rain which is formed from vapor that rises, cool, and changes into tiny water droplets, which form clouds.
We have huge water sources in the world However in a theoretical scale it can be depleted and due to this, it should be classified as a nonrenewable source.
What do you all think?
Believe me, in Western Pennsylvania, USA., Water is "renewed" almost too often.
 

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The first hydroelectric system had generators built in 1895 by Pittsburgh's Westinghouse Electric (3,700 kW) 25 Hz.
It as at Niagara Fall, NY. I've visited this plant and it still amazes me.
 

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Unfortunately not everybody lives near a dam or waterfall. Some Hydro plants generate electricity by day and then use nuclear, gas, coal, or oil to generate electricity at night to pump the water back up stream or up the mountain to be reused the next day. Like matter, energy cannot be destroyed. Only changed. Kinetic to potential and back to kinetic with some thermal thrown into the mix.
So is Hydro a renewable? Sometimes yes and sometimes no.
 
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