A thorough exploration of the central concepts that make solar power work.
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Chapters
0:00 Intro
1:16 P-N Junction
3:13 Space Charge Region
5:28 Supporting Structures
5:43 Anti-Reflective Layer
6:30 Front Contact
6:42 Passivation
6:56 Rear Contact
7:14 Module Video Rating: / 5
By combining solar panels and battery storage, these German homes are maximizing their renewable energy credentials.
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You might be wondering how solar panels hold up in snow. They do an amazing job (I think) at warming up and letting that snow slide right off. One thing I didn’t really expect was how shocking the avalanches are! #DIYsolar #solar #solarpanels
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Perovskite solar cells might revolutionize how humans generate energy from sunlight.
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In this video we’ll explore the world’s fastest improving new solar technology, and provide an exclusive peek inside the lab of a team working on this breakthrough material.
Imagine an inexpensive solution of perovskite crystals that can make a photovoltaic cell so thin, that just half a cup of liquid would be enough to power a house. A solar panel so lightweight, that it can be balanced atop a soap bubble. That is known as the holy grail of solar energy. So when will we see perovskite solar panels used for a solar power system for your home? Maybe sooner than you expect.
Currently, only 2% of global electricity comes from solar power. And 90% of that, comes from crystalline silicon-based solar panels, the dominant material technology.
While abundant, silicon has downsides related to efficiency, manufacturing complexity, and pollution that prevent it from being an absolute no brainer. Emerging thin films like perovskites present a bright future. Imagine solar cars like a solar tesla, solar yachts, or a solar plane.
Solar cell technologies can be classified into two categories, wafer-based or thin-film cells. Perovskites are the leading contender in emerging thin films. Topics covered in this video include applications, perovskite crystal structure, working principle of perovskite solar cells, efficiency limits, multi-junction solar cells, shockley-queisser limit, how solar works, solar simulator, band gap, manufacturing, vapor deposition, how solar panels are made, and the future of solar power.
More and more countries of the world are beginning to use alternative energy sources, including solar. Therefore, modest rooftop panels are being replaced by “solar farms” spread over vast areas. So, the fourth-largest solar power plant in the world, Benban Solar Park is located in Egypt, covers an area of 37 square kilometers, and generates a capacity of 1,650 MW. In third place is Shakti Sthala, located in the city of Pavagada in India. Its area is 50 square kilometers and has a capacity of about 2000 MW. The second is the Chinese Hainan Solar Park. It consists of 672 photovoltaic arrays and produces 2,200 MW. What is the largest solar power plant in the world and how is it arranged? Watch in our video!
#solar #invention #construction #technology
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Ask This Old House home technology expert Ross Trethewey sees a robotic, ground mounted solar array that mimics a sunflower.
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Steps:
1. The solar panel array is installed by securing four massive earth screws into the ground to act as a base.
2. The solar panel array is then craned off of a truck into place on top of the earth screws.
3. A trench is dug from the array to the house. Conduits are placed in the trench containing a hot, ground, neutral, and a Cat5 cable. The Cat5 cable allows the system to take in weather and location data.
4. Once the array is secured to the base and wired up, the latitude and longitude of the area is programmed into the system and it can be powered up.
Resources:
The solar flower Ross saw installed is called the SmartFlower, and it is manufactured by SmartFlower Solar (http://smartflowersolar.com/).
About Future House:
Ask This Old House home technology expert Ross Trethewey shows you the newest smart-home innovations. From automated home construction to energy monitors to robotic solar panels, and more, find out what’s happening now and what’s coming in applied home science.
About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
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Robotic Flower Solar Panels | Future House | Ask This Old House
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I described a new (3rd) class of solar power plants (in addition to solar panels and traditional CSP) and formulated the goals that we must achieve
Now we see solar energy which is reflected from this mirror, and focused in this way, and this receiver converts solar energy into water steam. It is a prototype of one of my solar heaters. My goals are described by this formula, which leads us to the cost of solar heat at the level of 0.5 cent / kWh, and it is approximately 10 times cheaper than the cost of heat from natural gas. In addition, this cheap thermal energy can be used to generate solar electricity which is cheaper than electricity from thermal and nuclear power plants. The 2nd half of this video will describe how we can turn this thermal energy into electricity 24 hours a day, both during the day and at night.
This is the prototype of my 2nd idea for the production of very cheap solar heat. I remind you that such experiments are described in detail in other videos of my YouTube channel, and this 2nd idea aims at these goals which lead us to this cost of our solar heat, 0.5 cent / kWh.
Here we can see that the total construction cost of my mirror should be about 10 $ / sq. m. This is realistically achievable because my mirror consists of this mesh of steel rods worth $ 3, and this reflective film at a price of 25 cent / sq. m.
The mirror of my 1st idea is more expensive, and it is a mirror version of cheap stainless steel. The wholesale prices of these mirror sheets are less than 10 $ / sq. m. I remind you that I am aiming for this cost of my stainless mirror, about 15 $ / sq. m.
This is just the beginning of my experiments, which will be described in my future videos. I will also research and describe other types of mirrors for cheap solar heaters, and for example, now I am showing the idea of this American company. It is a balloon, made of this transparent film and this reflective film which focuses solar radiation. This is also a balloon, but it is very large and was proposed by this Austrian company. Its reflective film focuses solar radiation in this receiver.
This German idea is the 2nd example, and the basis of this mirror is cheap and long-lasting concrete. I plan to start experimenting with the cheapest option of similar concrete mirror in 2 months. This is the 3rd example of cheap mirrors, and I have been testing these mirrors at this my solar station for almost 8 years.
Of course, we know about traditional solar heaters for large solar power plants, and this is the 1st type of the traditional heaters. This is the 2nd traditional type of solar heaters, and this is number 3. This is type number 4, and now I am showing the fifth traditional solar heater type which is used by this new solar power plant in China.
Unfortunately, these 5 traditional types use very expensive mirrors and systems to turn them according to the movement of the sun across the sky. Their cost is about several hundred dollars per square meter, and it is 30 or 50 times more expensive than those cheap mirrors which I will research and describe in my future videos.
So, I propose the 2nd road to cheap solar electricity, which is parallel to the 1st road of these 5 traditional types of solar heaters. The 2nd road goes through experimental and economic testing of various types of extremely cheap mirrors and through maximum simplicity of our solar heaters. The simplicity gives us the following advantages: Low cost, Reliability, Small investment.
Which of the two roads is better, we can understand by similar formulas, and the winner will be the road that will offer cheaper thermal energy at the temperature we need. So, it is only competition, and I am not an enemy of these traditional ways, and I believe in their prospects and ability to win against solar panels.
In addition, we understand that I must find cheap options for such turns according to the movement of the sun. That is why I am looking for different options which are several dozen times cheaper than traditional ones, and i will describe them in my future videos.
0:00 Intro
0:36 How the system works
1:12 Arranging a survey
1:24 How long do they take to instal?
1:42 The installation process
2:55 Can the panels damage the roof?
3:14 The currents
3:40 Generation meter
3:45 When do they start working?
http://whi.ch/SolarPVInstallation?utm_campaign=video_home&utm_medium=video&utm_source=youtube_channel&utm_content=solarpanelinstallation&utm_term=description With the cost of solar panels coming down, you might be thinking of installing some at your home. Watch our video to find out how solar photovoltaic panels work and see how the panels are installed on a concrete tiled roof. For more information about solar panels, and a checklist of what to look out for if you’re considering getting solar PV, visit http://www.which.co.uk/solar. To find a trusted trader in your area, join Which? Local at http://www.local.which.co.uk
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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!
LAST video:https://youtu.be/GFCsYictPFo
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Topics Discussed:
solar power,solar panels,solar cells,solar thermal system,solar panels plant,artificial photosynthesis,artificial photosynthesis solar panels,solar panels 2021,going solar,new type of solar panels,solar panels that produce fuel,solar panel energy storage,plant solar panels,photosynthesis solar panel,solar power plant,solar power reaction,breakthrough solar,solar panel research,solar panel efficiency,solar panel effect on environment,improved solar panels
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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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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.
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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
