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It’s time for our second to final Physics episode. So, let’s talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it so useful to us as physicists and humans? In this episode of Crash Course Physics, Shini sits down to go over the basics of it all.
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Geothermal power can revolutionize the way we see renewable electricity. It’s the only renewable source of energy that can produce a base-load of electricity 24/7. Geothermal has the potential to replace the world’s entire fossil fuel based electricity production. Video Rating: / 5
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Could geothermal power be the future of electricity generation? Robert visits Cornwall to find out how Eden Geothermal are unlocking geothermal energy in the granite beneath the ground.
Their seriously impressive geothermal drilling rig might be the same kit you use to drill for oil and gas, but instead they are targeting clean, natural, sustainable energy from the rocks deep below. This is the first phase of a two well development which will completely power the eco-focused Eden Project making it carbon neutral as well as potentially power 17,000 surrounding houses.
What is really exciting about this project is that it feels like the beginning of a new geothermal energy industry could be on the horizon.
Eden Geothermal – https://www.edengeothermal.com/
Eden project – https://www.edenproject.com/
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Timestamps:
0:00 Introduction
2:05 Huge drilling rig
3:47 Need baseload
4:14 Deep drilling
5:39 Heating up
6:50 How does it work?
8:22 Flow & heat
9:29 Second well
10:40 Runs all the time
11:19 Big piece of kit
12:38 Geothermal potential
15:12 Round the clock
16:08 Not fracking
17:19 Obvious resource
19:17 Subscribe, support, join
Historical overshoot- and undershoot water wheels, Kaplan-, Francis-, and Pelton turbines, efficiency calculation and comparison, Run-of-River plants, storage hydro power plants, pumped hydro storage power plants, micro hydro power plants, tidal power plants.
All lectures:
1. Introduction to the Transition of the Energy System: https://youtu.be/u8gln8uTfys
2. Conventional power supply: https://youtu.be/Wd0W8zN0yEo
3. Solar Irradiance: Astronomical basics: Positioning of the sun during a year, Elevation and azimuth of the sun during a day and during the year from a terrestrial observer, Spectra of the sun for different “Air Masses” (AM): https://youtu.be/3IEyAoMJyA8
4. Solar Thermal Energy Systems: https://youtu.be/i-81RmsOJt8
5. PV – Basics: Principle of photovoltaic energy conversion. Characteristics of solar cells: I-V-curve, influence of irradiance level, spectrum of irradiance, spectral efficiency, MPP, Form Factor, influence of parasitic resistors, weak light effect, operation temperature, STC. https://youtu.be/PzAcKqqrKXw
6. PV Energy Systems: Installation, Mounting, Foundation, Substructures, Inverters, Conversion efficiency, Energy yield, Off-grid vs. On-grid systems, Configuration of PV systems, Wiring, Balance of System costs (BoS), Optimization of PV power plants. https://youtu.be/YZyLh7KsHJI Solutions to Exercise 6 – PV systems – plus homework.https://youtu.be/GST_1KFUscc
7. Wind Energy: Historical and actual development of wind power conversion.
Extractable power from the wind. Parameters of wind energy: Height, pressure, temperature, density. Weibull- and Rayleigh-distribution of wind velocity.
Theoretical conversion efficiency of wind power conversion, Betz efficiency. Types of wind power converters, tip speed ratio, cost, complementarity, software tool, literature.
7.1 Wind Energy: https://youtu.be/GhX9yTmENX0
7.2 Correlation of wind and solar power: https://youtu.be/yKVMXZ7bbrs
8. Hydro Power: Historical water wheels, type of turbines, run-of-river-plants, hydro storage power plants: https://youtu.be/FkOmeHho6wA
9. Geothermal Energy: Potential, Geology, Conversion Processes, Exploration, Costs https://youtu.be/KdpMWaf94qA
10. Biomass Energy: https://youtu.be/RHFXQsWjkt8
11. Energy Storage (part 1): https://youtu.be/SdL3Qhhj4Cw
12. Energy Storage (part 2): https://youtu.be/noV5HqwiVRI
13. Energy Storage (part 3): https://youtu.be/QxPFaOPvIU4
14. Optimization of a Wind-Storage-Transmission System https://youtu.be/eZILdBpYV5I
15. Flexibility of Demand & Supply, Demand Side Management (DSM) https://youtu.be/Hr9octo7b9w Video Rating: / 5
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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More About the Solar Powered Classroom: http://go.usa.gov/b77H
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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