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What is Renewable Energy?



We’re all familiar with energy. Flip a light switch, that’s energy. Take a shower, you’re using energy. Cooking, energy. Driving a car, energy. For most of us, that energy comes from sources that are nonrenewable, meaning once they’re gone, they’re gone. Fossil fuels are the number one example of a nonrenewable resource. As more of the world needs power and we continue to advance our societies, we’re going to need to look at different ways to get energy. Here’s what renewable energy is and what role it has to play:



1. Renewable means “not depleted when used.”
When you go to the fridge and grab a few ingredients to make dinner, you’re depleting your resources. Sure you can go out and buy more, but for the time being, in your home you’re dealing with nonrenewable resources. When you use something, it goes away. Nonrenewable resources are the same. Once we’ve used up all the coal on the planet, we won’t be able to get more, at least not in a reasonable amount of time. Renewable energy, on the other hand, will still be around in the next hundreds or thousands of years.

2. Renewable must be on a human timescale.
An important consideration is our human timescales. Fossil fuels are renewable...if you have a few million years to wait around. We don’t. Renewable energy gives continuous energy that is consistent with human timescales. It is naturally replenished not in thousands of years, but in a few days, weeks, or months.



3. These are the top sources of renewable energy.
So, what are the renewable energy resources we have on our planet? Wind energy is one that is increasing in popularity. Wind is naturally occuring and not going to slow down anytime soon, so there’s no risk of running out. Solar power is another form, since the Sun will continue to shine for another few billion years. Some other notable renewable energy sources are hydropower and geothermal.
 
Apr 3, 2020
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We're all acquainted with vitality. Flip a light switch, that is vitality. Wash up, you're utilizing vitality. Cooking, vitality. Driving a vehicle, vitality. For a large portion of us, that vitality originates from sources that are nonrenewable, which means once they're gone, they're gone. Non-renewable energy sources are the main case of a nonrenewable asset.
 
Dec 12, 2019
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It seems there are two versions of what we call renewable energy. One sort is more harvested energy, like wind-to-electricity or water-plus-gravity-to-electricity, that sort of thing. We harvest the energy and turn it into energy of some sort. Then there is converted energy, where we change one thing into something else and generate either heat or electricity: Photovoltaics are one example, and solar steam plants are another.
Actually, Fossil fuels are a form of renewable energy if you look at it as a process: A pile of dead animals and a swamp or three: bury and let mature for a couple of million years and bingo! Coal and Petroleum!
Actually, if you remove the "Due on Thursday" requirement from the thing, all forms of energy are ultimately Solar in nature, and solar energy is what? Renewable? Non-Renewable?
About the only truly renewable form of energy I can think of is wood: Plant the trees, collect the seeds, harvest the wood and burn. Plant the seeds (trees) collect the seeds,.. Rinse, lather, repeat.
It's all a matter of the time-scale it's viewed against.
 
Jan 12, 2021
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Renewable energy is made from resources that nature will replace, like wind, water and sunshine. Renewable energy is also called "clean energy" or "green power" because it doesn't pollute the air or the water. Unlike natural gas and coal, we can't store up wind and sunshine to use when we need to make more electricity. If the wind doesn't blow or the sun hides behind clouds, there sometimes isn’t enough power for everyone. Another reason we use fossil fuels, like coal and natural gas, is because they're cheaper. It costs more money to make electricity from wind or sun.
 

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