In the past decade, wind power capacity has tripled, and it’s projected to double in the decades to come. Wind is now America’s top renewable source of electricity generation, and the domestic offshore industry is finally taking off, as major manufacturers debut ever larger and more powerful turbines. While the industry faces some challenges with permitting, public opposition from various interest groups, and the obvious intermittency issues, there’s no doubt that wind is poised to play a major role in the energy transition. The question is just how fast it will grow.
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The Rise Of Wind Power In The U.S. Video Rating: / 5
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Yes, we have solar panels, but they don’t work in the same way plants do. But what if the future Of solar was panels that didn’t create electricity that needed to be used that instant, but instead created fuel that could be used any time? Come join us as we discuss why this technology is so game-changing!
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The meltdown at a nuclear power station in Fukushima, Japan, ten years ago stoked anxieties about nuclear energy. But nuclear is one of the safest, most reliable and sustainable forms of energy, and decarbonising will be much more difficult without it.
Further content:
Sign up to our newsletter about climate change: https://econ.st/38bLSO9
The Economist also has a new weekly newsletter, Simply Science: https://econ.st/3uWjw4b
Find all our coverage on science and technology: https://econ.st/3c3aEB1
See our latest coverage on climate change: https://econ.st/3uY1ZZd
Why didn’t the Fukushima disaster spur reforms in Japan? https://econ.st/3e8BDxS
The lessons about nuclear power, ten years on from Fukushima: https://econ.st/3c2fcYC
What is the future of Britain’s nuclear reactors? https://econ.st/3bg8ejt
Why smaller nuclear reactors might be better: https://econ.st/38dMQcz
How the world relies on Russia for nuclear power plants: https://econ.st/3kMqy6V
Listen to an episode of The Intelligence podcast about nuclear arms control: https://econ.st/3kO6i4N
Will nuclear energy power war zones? https://econ.st/3qsdipr
Could floating reactors be a better option? https://econ.st/3uTIvVM
The most promising zero-carbon resources: https://econ.st/3kLlYG9 Video Rating: / 5
Greg Foot is joined by explorer and explainer extraordinaire Tom Scott at Kelvedon Hatch to demonstrate nuclear energy!
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Watch Part Two: https://youtu.be/-GGx6bBJv2U
Watch Tom Scott’s video all about Britain’s end-of-the-world-bunkers: https://www.youtube.com/watch?v=BTPToO-gfTE
Welcome to BBC Earth Lab! Here we answer all your curious questions about science in the world around you (and further afield too). If there’s a question you have that we haven’t yet answered let us know in the comments on any of our videos and it could be answered by one of our Earth Lab experts. Video Rating: / 5
Covering the topics of Geothermal Energy, Earth Energy, Sun Under Our Feet, Geothermal Energy Explained, and more!
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Despite being one of the cheapest and most reliable sources of renewable energy, there is no harnessing of heat from the ground outside of Iceland. In this video, we are going to learn what is Geothermal energy, its advantages, and disadvantages, what are those challenges that stop us from getting energy from Earth, and much more. So be sure to watch until the end.
What is geothermal energy?
Geothermal energy is heat in the earth. The word geothermal comes from the Greek words ‘geo’ which means earth and ‘therm’ means heat. Geothermal energy is a renewable energy source because heat is continuously produced in the earth. People use geothermal energy to bathe, heat buildings, and generate electricity.
How does it work?
Humans can harvest geothermal energy by:
-Geothermal power plants, using heat from within the earth to generate steam to generate electricity.
And,
-Geothermal heat pumps, using heat near the earth’s surface to heat water or heat buildings.
Geothermal power plant
In geothermal power plants, wells are drilled 1 or 2 miles into the earth to pump steam or hot water to the surface. You’ll likely find one of these power stations in an area with lots of hot springs, geysers, or volcanic activity, as these are places where the earth is extremely hot just beneath its surface.
Now, let’s break down its working step-by-step:
-Hot water is pumped from below through a high-pressure well.
-When the water reaches the surface, the pressure drops, causing the water to turn into steam.
-The steam spins a turbine, which is connected to a generator that produces electricity.
-The steam is cooled in the cooling tower and condensed back into the water.
-The cooled water is pumped back to earth to start the process again.
Not all geothermal energy comes from power plants. Geothermal heat pumps can do everything from heating and cooling homes to heating swimming pools. These systems transfer heat by pumping water or a refrigerant-a special type of liquid, through pipes just below the earth’s surface, where the temperature is constantly between 50 and 60 degrees Fahrenheit.
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Hi Friends,
Welcome to Let’s Grow Up Youtube channel. Today we are launching a fantastic video. in this video, we explained the History of Hydropower or Hydroelectric. What is Hydro Power? What is History? Everything you will learn in this video. Not only history but also learn about some scientists and how the turbine was invented.
#History of Hydro Power
# Hydropower
#Hydroelectric Power Plant
#how hydroelectric power works
#What is Hydro Energy
# History of the water wheel
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Let’s Grow Up Team
Never Stop Your Learning:) Video Rating: / 5
The sun. One of the most powerful energy sources ever available to humans.
The process of exploration this energy began more than two thousand years ago, requiring at first colossal knowledge and skills from a person. Thanks to this labor, today, solar energy has become the cheapest in history. But why, with all its cheapness, is it not used so widely?
#technology #invention
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What are disadvantages of geothermal energy? Do they outweigh pros for geothermal energy? Should more people get geothermal energy at home? Learn more in this video!
Visit our channel Dynamic Earth Learning for other introductory sustainability and science videos!
📝 See Dynamic Earth Learning’s lesson plan for this video in our store:
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👀 Check out the accompanying blog post for More Food Without Risking Natural Resources on Dynamic Earth Learning’s website:
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A short animation that explains what is geothermal energy and the process used to obtain this renewable energy resource. Part of a series of animated videos that helps explain the volcanism in the Easter Caribbean. The series was commissioned under The Volcano Ready Communities Project (VRCP) St. Vincent and the Grenadines. The project is funded by the Caribbean Development Bank through The Community Disaster Risk Reduction Fund and implemented by The UWI-SRC in collaboration with project partners NEMO St. Vincent and the Grenadines, St. Vincent and the Grenadines Red Cross Society, The Ministry of National Mobilisation Social development & Youth SVG & API – The Agency For Public Information : St. Vincent and the Grenadines. For more information on the VRCP can be found here: https://bit.ly/3kcnaSA Video Rating: / 5
Perovskite solar cells are a remarkably cheap solar cell technology and have achieved remarkable growth since their inception a decade ago, sharply increasing in efficiency from 3.8% to 25.2%, near to their theoretical efficiency. Thus, the perovskite solar cell could be the future of solar energy. Perovskite solar cells are a new technology and still needs to be scaled up for commercial applications, but perovskites have the potential to revolutionise the energy harvesting market, with cheap, high efficiency solar energy in the near future. In this video, we’ll explore perovskite solar panels and how they might energize our future.
If you’d like to support us make bigger and better content, please check out our Patreon:
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Please consider following us on the following media platforms:
We’d like to give a special thank you to Samuele from Bullaki ltd, for permission to use, and sending us, fantastic lab footage in the manufacturing of perovskite solar cells:
Scientific Video Protocols (Bullaki ltd), Back-Contact Perovskite Solar Cells | Prof. Sir Richard Friend et al. (University of Cambridge) https://youtu.be/nvuNC29TvOY;
Bullaki ltd, Spray Coated Perovskite Solar Cells, https://youtu.be/ayYOy7ycP_k.
Other Sources:
Global Energy Graphs – https://ourworldindata.org/energy
SEM Images of OPV:
Cardinaletti, Ilaria, et al. “Toward bulk heterojunction polymer solar cells with thermally stable active layer morphology.” Journal of Photonics for Energy 4.1 (2014): 040997.
Perovskite Review:
Roy, Priyanka, et al. “A review on perovskite solar cells: Evolution of architecture, fabrication techniques, commercialization issues and status.” Solar Energy 198 (2020): 665-688.
Revolutionizing solar power with perovskites | Sam Stranks | HT Summit 2017 – https://youtu.be/bXJysl6-5dk
Perovskite Stock:
Stock footage provided by Videvo, downloaded from www.videvo.net
https://www.youtube.com/watch?v=sCdpOO3n8IE
References:
[1] – Revolutionizing solar power with perovskites | Sam Stranks | HT Summit 2017
(https://www.youtube.com/watch?v=bXJysl6-5dk)
[2]- https://ourworldindata.org/grapher/energy-consumption-by-source-and-region
[3] – “Cost and Performance Characteristics of New Generating Technologies, Annual Energy Outlook 2019” (PDF). U.S. Energy Information Administration. 2019. https://www.eia.gov/outlooks/aeo/assumptions/pdf/table_8.2.pdf
[4] – NREL Best Research-Cell Efficiency Chart https://www.nrel.gov/pv/cell-efficiency.html
[5] – Chamberlain, G.A., 1983. Organic solar cells: A review. Solar cells, 8(1), pp.47-83.
[6] – Xiao, Z. and Yan, Y., 2017. Progress in theoretical study of metal halide perovskite solar cell materials. Advanced Energy Materials, 7(22), p.1701136.
[7] – Saliba, M., Matsui, T., Seo, J.Y., Domanski, K., Correa-Baena, J.P., Nazeeruddin, M.K., Zakeeruddin, S.M., Tress, W., Abate, A., Hagfeldt, A. and Grätzel, M., 2016. Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency. Energy & environmental science, 9(6), pp.1989-1997.
[8] – Konstantakou, M. and Stergiopoulos, T., 2017. A critical review on tin halide perovskite solar cells. Journal of Materials Chemistry A, 5(23), pp.11518-11549.
[9] – Bullaki, The Path to Perovskite on Silicon PV | Prof. Henry Snaith, https://www.youtube.com/watch?v=sbe9Z5oEs5o&t=2s
[10] – Perovskite/silicon tandem solar cells approaching 30% efficiency in lab, https://pv-magazine-usa.com/2020/01/31/tandem-cells-approaching-30-efficiency/
[11] – Advanced Science News, Almost 40% conversion efficiency predicted in new perovskite solar cell, https://www.advancedsciencenews.com/almost-40-conversion-efficiency-predicted-in-new-perovskite-solar-cell/
[12] – Liu, Z., Sofia, S.E., Laine, H.S., Woodhouse, M., Wieghold, S., Peters, I.M. and Buonassisi, T., 2020. Revisiting thin silicon for photovoltaics: a technoeconomic perspective. Energy & Environmental Science.
00:00 – Introduction
01:46 – Some Basic Solar Cell Physics
02:17 – Silicon
03:12 – Organic Solar Cells
03:52 – Perovskite Solar Cells
05:18 – Tandem Solar Cells
06:02 – The Future of Perovskites
07:13 – Outro
#SolarEnergy #Perovskites #Renewables #OurEden Video Rating: / 5
Part 3: Real World Field Tests now up on the channel: https://www.youtube.com/watch?v=5jl8vHHn7_s
This open source turbine can be built for about half the cost of a 120 watt solar panel, and will produce about ten times the power per day. It can be plugged into any appropriate waterway without the need for earthworks, and uses only basic off the shelf and recycled materials, and basic hand tools.
The turbine is now working and producing power.
Part Two (with full power output results) here: https://www.youtube.com/watch?v=ibCu0PxIZA4
Help directly support us creating more prototypes and tutorials by joining the channel:
https://www.youtube.com/channel/UCyjzaMkXTTp9P20UZbxDH6w/join
This technology was produced in partnership with COACT, an open source green tech incubator in Barcelona. COACT exists to help all kinds of innovators working on green technologies. To learn more, and apply for a residency visit https://www.coactlab.org
And thanks to the good people at Ca La Fou (https://calafou.org/) for the rest.
Once the design is optimized I’ll produce a full open source construction tutorial on
the website: https://opensourcelowtech.org
the Facebook page: https://www.facebook.com/opensourcelowtech.org/
and the Facebook group (which is the main discussion forum): https://www.facebook.com/groups/opensourcelowtech/
My name is Daniel Connell. I prototype and develop basic technologies which anyone can make using recycled materials and simple tools.
The aim is for everyone everywhere to be able to build and maintain their own infrastructure; producing their own energy, food, clean water, communications, and anything else they need.
All designs are open source and license free for any purpose, and full construction tutorials and how-tos are available on the opensourcelowtech.org website.
A couple people have asked if I sell the file for the 3D printed impeller. I don’t, it’s free:
STL (mesh, 28 MB): https://drive.google.com/open?id=18NuQbyD55YhnAM9aj_lBrWgHAxp3iZxE
Iges (nurbs, 14 MB): https://drive.google.com/open?id=1HL_y-HwpomukQ7ORQf2E57Zy7ytoWTKN
Feel free to play around and experiment with them however you like, but please let me know how it goes and what your results are, as that’s always good to see.
It seemed to work ok, but I’m going to instead be using computer cooling fans as they seem to do higher revs at lower toque, and be a lot more accessible in other parts of the world.
#water #turbine #DIY #hydro #renewable #energy Video Rating: / 5
