Hydroelectric generation uses water power to drive turbines and is an important means for producing the electricity so essential for modern life. Facilities have been becoming smaller, with generators able to use diverse water power sources. We’ll look at an ultra-small generator developed in Gifu that’s highly portable and works even with shallow, slow moving water. Already tested powering street lights, it promises to allow people in the world’s remote regions to generate their own electricity for the first time.
In the energy sector, wind energy is a breath of fresh air. But how does it all work? In this video, we explore how wind power is created by harnessing the power of Mother Nature herself and transforming it into clean, renewable energy. Even though human beings have been using the wind to power their technology for centuries, we have still only scratched the surface of what it can do. Learn how 20-story- tall turbines transform wind into electricity that makes up 4.1% of the United States’ energy each year. The answer to a clean energy solution is blowing in the wind. This video should provide some insights, and you can visit our website for more information!
Transcript:
Renewable Energy 101
We’ve been harnessing the wind since the ancient Egyptians used sailboats to travel, and windmills were used in agriculture in China over 2,000 years ago.
Americans were using wind turbines to produce electricity as early as the 1800s. You may have seen fields of turbines in wide-open spaces where you live since more than three-quarters of U.S. states produce wind energy on a large scale.
It may look small from a distance, but a modern turbine can be as tall as a 20-story building, with airplane wing-shaped blades that are as long as a football field. The blades spin at a slow speed — about one revolution every three seconds. A computer inside the box that sits at the top of the tower controls the direction of the blades to make sure they capture the most wind possible. The blades are connected to faster spinning gears inside the box that create kinetic energy. A generator converts that energy into electricity, which travels down the tower through a cable. The cable connects to the power grid that serves our communities.
See, all it takes is a little fresh air to make the turbines go around.
About Green Mountain Energy: As the nation’s longest-serving renewable energy retailer, we’ve been on a mission to change the way power is made since 1997. By choosing our 100% clean, renewable wind and solar energy plans for their homes and businesses, Green Mountain customers have avoided more than 81 billion pounds of CO2 emissions to date — that’s like taking 8.6 million cars off the road for an entire year! But, we’re more than just an energy company. We’re helping our customers make a positive environmental impact, support a cleaner grid and green their carbon footprints with sustainable living solutions, renewable energy plans and the purchase of carbon offsets. And, our 501(c)(3) nonprofit organization, Green Mountain Energy Sun Club®, has donated more than million in grants to nonprofits for sustainability projects focused on renewable energy, energy efficiency, resource conservation and environmental stewardship. For more information, visit greenmountainenergy.com and gmesunclub.org. Together, we’re building a cleaner, greener tomorrow.
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For Decades the wind turbine has been at the center of renewable energy generation. But the future of blade-less wind turbines is interesting, as it is poised to decentralized wind energy production. So what does solid state wind turbines look like, and what impact will they have? Let’s take a deeper dive!
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0:00 Overview
0:36 Advantages and Disadvantages
1:22 3 Types of Hydro Power
1:59 Primary vs. Secondary Sources
2:52 Equation for Potential Energy
4:12 Example Problem 1
5:59 Example Problem 2
Newberry Volcano — the largest volcano in the Pacific Northwest — is the site of an experiment that’s aiming for a breakthrough in geothermal energy.
The experiment is one small step in the high-risk, high-reward world of next generation
geothermal. The goal is to replace fossil fuels with this always-on, renewable energy. The challenge, however, is getting it to work.
#geothermal #renewables #proofofconcept #geothermalenergy Video Rating: / 5
Explore how geothermal energy— the heat in the Earth’s crust— is being used to create renewable electricity and power.
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While the weather in Iceland is often cold, wet, and windy, a nearly endless supply of heat bubbles away below the surface. In fact, almost every building in the country is heated by geothermal energy in a process with virtually no carbon emissions. So how exactly does this renewable energy work? Jean-Baptiste P. Koehl explores the two primary models for harnessing the planet’s natural heat.
Lesson by Jean-Baptiste P. Koehl, directed by Charlotte Arene.
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Discover in video how a solar power plant works. In a solar power plant, electricity is generated using sunlight.
penambahan kapasitor pada battery akan meningkatkan cca dan menurunkan IR resistance battery hal ini akan meningkatkan performanya battery saat digunakan.
kami sudah menggunakan ini dalam kurun waktu 4 tahunan dan membuktikan battery kami masih bisa diandalkan selama itu Video Rating: / 5
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Energy too cheap to meter – that was the promise of nuclear power in the 1950s, at least according to Lewis Strauss chairman of the Atomic Energy Commission. That promise has not come to pass – but with some incredible new technologies, perhaps it still could. The question is – should it?
Hosted by Matt O’Dowd
Written by Matt O’Dowd
Graphics by Leonardo Scholzer
Directed by Andrew Kornhaber
Produced By: Kornhaber Brown
If we want to convert mass into energy, fission gives the most bang for our buck. Unfortunately that “bang” can be literal. Use of nuclear energy may risk the proliferation of nuclear weaponry, and there’s also the problem of nuclear waste, and the specter of horrible accidents. This last one was painted in terrifying detail in the recent dramatization of the Chernobyl disaster. Nuclear reactors sound scary because the disasters are pretty epic. However the reality is that far, far more people die from straight up air pollution due to coal-fired power plants than ever died in a nuclear reactor accident. In fact the radioactivity around coal-fired plants is also higher due to the trace but completely uncontained radioactive products of coal burning.
But the most compelling attraction is that nuclear power doesn’t directly produce carbon emissions. In fact nuclear power may be our most sure path to reducing carbon emissions and halting climate change. But can we do nuclear power safely enough? There are modern ideas – including the much-hyped thorium reactor – that suggest maybe we can. Before we can understand those we’ll need to review how nuclear reactors work.
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The students in Aaron Sebens’ fourth grade class are installing solar panels on their classroom roof for a project that goes above and beyond a normal day in school. From researching solar panel installation, to generating funds for the project via Kickstarter, these are students who put their plans into action. Their accomplishments go beyond the classroom and stress the importance of getting people of all ages involved in renewable energy.
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Directed by: Joel Kefali and Ella Yelich-O’Connor
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Lorde – Solar Power (Lyrics)
I hate the winter
Can’t stand the cold
I tend to cancel all the plans (so sorry, I can’t make it)
But when the heat comes
Something takes a hold
Can I kick it? Yeah, I can
My cheeks in high colour, overripe peaches
No shirt, no shoes, only my features
My boy behind me, he’s taking pictures
Lead the boys and girls onto the beaches
Come one, come all, I’ll tell you my secrets
I’m kinda like a prettier Jesus
Forget all of the tears that you’ve cried, it’s over (over, over, over)
It’s a new state of mind — are you coming, my baby?
Acid green, aquamarine
The girls are dancing in the sand
And I throw my cellular device in the water
Can you reach me? No, you can’t
Turn it on in a new kind of bright, it’s solar (solar, solar, solar)
Come on and let the bliss begin
Blink three times when you feel it kickin’ in
That solar power
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