How do solar panels work? - Richard Komp
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- Опубликовано: 4 янв 2016
- View full lesson: ed.ted.com/lessons/how-do-sol...
The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more power than the planet’s population uses. So is it possible that one day the world could be completely reliant on solar energy? Richard Komp examines how solar panels convert solar energy to electrical energy.
Lesson by Richard Komp, animation by Globizco.
We do not need deserts in order to get solar power. Put solar arrays above car parking lots. The United States has 24,000+ square miles of parking lots. Bonus; you get to park in the shade.
Same goes for most buildings
Or both
@@MrPinku9 electricity is lost the more it has to travel on a grid
@@robertl152 not if they release or someone rediscover the Nicola Tesla wireless grid - 0% loss ,all wireless....we are still pigs in the farm..
And if it’s snowing you don’t get so much snow on your car that you cant open the door
a 5 minutes video taught me more than what a professor in college has done for an entire semester
agree haha
To build your own DIY small wind turbine system you should buy a small wind turbine KIT. The only way you can pass electrical and building permits and be successful is to have a engineered and certified small wind turbine KIT.
To be honest, I don't think it's his fault.
No offence bro, but 1 semester is a lot of time :p
Lots of professors are there just for money, they don't care about students.
Should have paid better attention.
"There are political factors but for now let's focus on the physical problems."
Translation: "I'm not even going to touch that."
Edit: why are so many people asking me about the Schallingora Computer Reconstruction Scheme?
in other words how usa will spread "freedom" if they dont need resourses :D
More like:
There are political factors
*FBI OPEN UP*
But for now let’s focus on the physical problems
@@rgbill5948 looool
I find physical factors more of a challenge than political.
Hes afraid....people are...monitoring stuff like these...
i love ted ed. everything is explained in such a calm, smooth and short way.
im doing a hw assignment. What is light?
What are the 2 major physical barriers to using solar cells?
What are most solar cells made from?
What from the sun causes solar cells to produce electricity?
What causes voltage in solar cells?
those r my questions plz help
@@evanrobles1772 a whole month has passed, F but if you still somehow need answers, google it or watch the fuckin video-
These simple video and calm voice does not explain anything just creates an illusion of understanding. Ask yourself questions where the electric field came from? Why it stops working after 10 years? Etc. You will realize that you really don't understand it.
yeah
Ye bro
I have an engineering job interview in a solar energy company after two days .. wish me luck.
😊
Hey it's been 2 or 3 years, did you pass that interview ?
How did you go?
Say
*[REDACTED]*
brilliant video my friend, easy to understand and very well explained, thank you , 10/10 :)
Agree
lol.
1:56 The mobile electrons are collected by thin middle fingers at the top of the cell. XD
LOL
Just wonderful, I been tryin to find out about "how to build an electricity generator" for a while now, and I think this has helped. Ever heard of - Diyadison Penhloe Blaster - (should be on google have a look ) ? It is a good one off product for generating your own electricity without the hard work. Ive heard some awesome things about it and my m8 got great success with it.
I would love an updated video on the amount of energy the most efficient panels can convert. A lot has changed in the 6 years since this video was published.
yea gud idea
ruclips.net/video/yVOnHWnLSeU/видео.html
no real change. under 30% new, immediate deterioration
You got your wish
I see some new technologies that don't use silicon. But until now, the silicon makes up the majority
I’m getting solar panels when I get my own house
No you’re not
Why?
When*
Chidera they are expensive
yeahSOwhat oh look at you. you're so cool.
scientist: the weakness of solar power is a not sunny area
Egypt: HEHE BOI
فشخ مصر اكتر من تلات ارباعها صحراء
@@omarmessi2730 الدجاج الدجاج
menacing
Sahara desert: amateurs.
@@noobiou515 walls to protect the solar panel from sand, hire a guy to guard it, pay him with Fesikh
can we just appreciate and give props to Globizco's animation on this? Great job!
and the background music as well and sound effects!
+Rav3r916 Do you, or anyone by any chance, know where I can buy/download that background music?:)
+IceblueParamedic Good question. I actually don't know. +Ted-Ed should start putting in links to it for preview and/or purchase. I only know, from the credits, that it was created by Manuel Borda.
+Rav3r916
Most Ted-Ed vids like these have really good animation.
whiz 85 Fss
who watching in 2024 😂
😂😂😂
me bro 😂😂
🤣
😂
😂😂me
"The most common cells are made from silicon, a semiconductor that is the second most abundant element on Earth"
Love that he mentions the non-rarity of materials needed to make solar panels since this is something critics often say is an issue with the technology 😆
For More Solar related Videos please click Links of Solar Panel Related Videos
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Thanks for watching
Silicon comes from sand, it’s obvious that it’s abundant.
@@Paonporteur the problem isn’t abundance it’s the way it’s harvested. Cobalt and lithium mines in Africa which is where most companies get there’s uses child labor
@@christianv7997 that's the point he's making doofus
Yet the people don't realize fossil fuels are the limited resource.
There is a "typo" in 1:22. While it is correct that N-type material has more electron and P-type material has more holes, they are by themselves neutral. When we put the N and P type silicon together, electrons in the N material tend to travel across the junction and occupy the holes in the P material, which leads to positively charged N-type semiconductor on the top and negatively charged P-type semiconductor at the bottom (according to the video). Thus the "+" sign should be on top and the "-" sign should be at the bottom.
Thank you so much for making this video. I had researched photovoltaic cells so much and only through this video did I finally understand it.
I live in the Philippines, a very sunny country but also very rainy. There's a large mall near my city that uses solar panels to power up 30 percent of its electric consumption. I find it cool how they invested in supplying their own power even if only partially.
How tight must we bolt the solar panel on the frame
The way they work just feels so elegant
By far the best animation & background music.
I digs it.
The limitations are not as crucial as most people think
Oil and gas are not evenly distributed either, we have vast distribution and refinement networks for those and that isn't a problem. In essence all energy came from the sun and is simply stored sunlight anyway. Piece of wood? sunlight, piece of coal? sunlight... wind moving across a wind turbine, the uneven heating and cooling of the world by the sun....
+Dan Burrell You can transport oil and gas to where it's needed, can you transport sunlight?
+Joe Davis You can transport the electricity generated from it, which is already happening. I.E Norway selling electricity to Northen England.
+Joe Davis Do you mean like how we burn fossils fuels and then place into a power grid. Sure we can. I don't need a hydro dam in my drive way to benefit from them on a day to day basis.
Dan Burrell No, we don't usually do that because of the power loss that happens with long distance power lines. We transport the natural gas to the place that needs power and burn it there.
Dan Burrell Thousands of birds are flying into a new solar "mega-trap" in the middle of California's Mojave Desert, killing the avian lot at a rate of up to one bird every two minutes, according to the U.S. Fish and Wildlife Service (USFWS).www.weather.com/science/news/solar-plants-birds-20140818
Just because something has a benefit, doesn't mean that the negatives won't out weigh it.
news.nationalgeographic.com/news/energy/2014/11/141111-solar-panel-manufacturing-sustainability-ranking/
I cannot thank enough for these Ted Ed videos!! :D Stunning graphics and simple explanations make them the best!!!!
I literally just had the question of how they work and I thought, "Maybe Ted-ed has a lesson about it," and I was right. Go, Ted-ed! I wish they used it in school.
they do.
Im writing a paper on this exact thesis and this helped a lot, thanks.
Plagiarism
@@Imayebrook You don't know this person. You can't know if they're literally gonna rip content out of the video or if the video just helped their understanding of the topic. Also, it's not plagiarism if you properly cite your sources.
@@maddy3852 But this isnt wikipedia so its not your own words 1 and two theres no site listed
Hello. Did you finish writing the paper? I would love to read it.
These illustrations OMG! Genius.
Its computer generated dont get to exited
Thanks for this video. I understand the whole thing in just 5 minutes. I was researching for this thing for days👍
I had read about PN junction in My class so I wanted to learn more So Thank U
I love this channel so much! Thank you for providing such knowledge freely for everyone.
I think I've gathered way more useful information through this channel than by wasting my valuable life-time at school. It's such a shame how the education system is limited in the choice of topics and aren't even relevant to our own needs. There is so much to learn about life and the world we live in and to be able to learn a bit by a well-explained and visually stimulating video, is beyond fantastic. Much love, from Belgium. x
I LEARNED SOMETHING TODAY!
+SaltyPeppers Anyone else learn something ?
+SaltyPeppers You learn new things everyday
Did i just stumble on a 1 million subscription youtuber when learning random stuff
Kiki do you 😂😂
If you are ambitious to know the working principles of solar
ruclips.net/video/zyDt4TirhCk/видео.html
Well done! Simply explained, and easily digested.
Thank you Ted x , for making the concept simpler
👍
dat art though!
congrats to the artist for beautiful work!
*that
The animation is awesome again, and this time the music too! I heard it at the start and immediately liked the video. Then it just got better!
2:36
this is why i love ted ed.
they made this part short and not complicated
most company's would've left this part out
So cool! I'm doing a causal argumentative essay on solar energy/power for college and this is exactly what's in my content. There are other factors too like heat absorption and utilizing the thermal energy as well!
yay he said Finland!
+Niklas Halonen congrats my nordic brother
Torilla?
+Juhana Kaarlehto Kyllä
yee
+Niklas Halonen SUOMI ON UUSI MAAILMANMESTARI! HEI! MAAILMANMESTARI!
Great video! Easy to understand and very informative
This is very well explained! Thanks for the information, I needed information about solar panels for a school project! 👍
The first person to mention the play of business in this topic. Appreciate your videos
This really helped me with my research.
Thanks a lot.
no it didn't
thank you for explaining this ^^
The whole principle of operation of solar panels is very clearly explained:) Really helpful video!
*Oil and Nuclear companies disliked this video*
46% is better than coal and nuclear
Daniel Duerto These are laboratory efficiencies under light concentration of 300+ suns and the design of such cell is very expensive, and most likely will not hit the market very soon, i think these type of efficiencies are only applicable for programs like the ISS to power their station
Thats the best in the world, and cost hundreds of millions to produce. Nuclear and coal are much cheaper than this technology. So if you want every household to spend millions on solar panels that are only 5% efficient, go for it.
But don't force it upon anyone.
I personally prefer nuclear as it is clean.
As solar technology develops it will be a good option, but right now it is very expensive an inefficient.
Atlas Shrugged actually france shut their nuclear plans down bc they were more expensive to actually create an efficient nuclear plant.
you say nuclear power plants are clean?? Did you forgot about those RADIOACTIVE nuclear waste??
That then safely decays underground.
I always find it amazing how people just somehow come up with inventions like these. Someone was like "Hey, I'm going to make it where we can harness the suns energy! Mayyybe it I sandwich Crystal and Silicon, where an atom will knock an electron from its bond, and there the electron moves freely while the hole stays, we can take that electron and use its energy before it goes back to the hole."
Like what the hell? Haha
+Lord Zizumias The first "solar cells" were actually made of selenium.
+Lord Zizumias With Base Science knowledge, a group of scientist will likely make hundreds of concepts, which the better ones goes to test phase. A process that can take years until something effective, and usefull can apear. Is not just like "Hey! Brilliant idea!"
+Lord Zizumias - Fun fact: Albert Einstein is the discoverer of the photoelectric effect, and it is what he won the Nobel Price in physics for.
It is not exactly what powers a solar cell, that would be the photovoltaic effect, but they are very closely related, and in principle, acts the same way; A photon interacts with an electron, and thereby makes it emit the electron, which results in a direct energy transfer from light into electricity.
IchBinEin They still had significant help from other scientists, so I don't think it's fair to give them complete credit.
TheFishCostume - Heh, that's not what i am saying at all. I am merely stating the fact that Einstein discovered, and correctly analyzed the photoelectric effect. Besides, the scientist who actually discovered the _photovoltaic effect_ was Edmond Becquerel back in the 19th century.
But i think the credit is due to the early discoverers, as Solar panels and spectroscopy, among other things, wouldn't be possible, hadn't the interaction and correlation between light and excitation of electrons been discovered.
This was very informative, thanks for the help on my stem project!
The sun: Exists
Humans: *Hold my beer-*
lol
this gives me an idea to make umbrella from solar panel that can be used as battery charging device, so we can walk with umbrella on a sunny day and charging our phone in the same time.
btw how expensive is solar panel?
Nofan Felani good thinking.. expecting to see you on the news
i think it will be a bit too heavy/expensive because it will also need a dry battery but if you are saying that the energy is directly transferred from the panels to the phone then it might work!
Thats one of the dumbest ideas I heard no offense
Ahmad abdal is dry battery really that heavy? i mean is it different than normal battery like the one on the external power bank?
WannaBeMLG i know, and that's kinda the point here, you know because people these day loves something dumb
With how hot it would get, you wouldn't want to be holding that umbrella.
The animation in this video was really well done. I thoroughly enjoyed it.
Thank you sir 🙏🏻 this video is very useful to me and I learn easily 👍
Explanation is sooooo effective and complete 👍
Great visualization.
Muito bom a animação e o conteúdo é nota 10.
Thanks for the insight, it really broadened my knowledge in the industry.
2:38
_So what's stopping us on completely reliable on Solar power_
Answer : *Oil companies*
In Egypt we have a lot of open desert areas with 365 sunny days and many power outages!
That's great. Build solar farms and export your energy to other countries and become rich!
I've recently become a huge proponent of portable solar panels. They're a good transition to full-scale solar to prove the concept on a small scale that can be scaled up later. I have four portable panels and some power banks, and take them everywhere to show them off and get people hooked on solar, especially skeptics who want to see it for themselves before making n'y decisions. It's great!
They need to be able to make the light the panels absorb...either without heat, or heat that powers magnetism enough to suspend light over the panel....Lenses can magnify light, and spectrums can be duplicated...Panels should usable indoors and stacked up...not chasing the sun, needs to be the evolution. Glowing tee shirts convince me light can be harnessed for closed system panels, probably from chemically or magnetically treated particles.
I found this video very helpful ☺️
Thanks
I'm impressed
precise explaination! Thank you so much :)
I learn more in a day from your videos than 1 year in school
I have solar on my house, I only pay a fee every month of 12.99. Great savings and worth it
How much did you pay to install them ?
@yeahSOwhat Depends on how many kw they installed but for 4kw it can range from £3,000 to £5,000. Maintenance is minimal since all they do is sit there. The only maintenance needed is cleaning them to prevent shadowing. Durability can also last up to 30 years easy.
@yeahSOwhat No.1. Not everyone can afford it.
2. Oil companies still need money.
3. You still need some kind of backup incase there is not enough energy being made.
Well going by some research you usually start seeing profits after around 7 years of getting a solar panel due to really cheap electric costs
@@genericasianperson6405 The year that you start to profit from pv panels depend by the country and the climate. E.g. it will take longer to start making profit in Germany because electricity is more expensive as they tend to use more green energy compared to something like France as a lot of their energy is nuclear which is dirt cheap, and by climate especially during winter as the pv panels tend to be covered by snow especially in North regions. In winter you will tend to use more energy than what pv panels can produce.
Thanks for the video. You helped me learn a lot
Thanks for the video! Really nice explanation!
Highly valuable video, globally. We are grateful: TED-Ed.
We can use other ways plus using solar panels.
We need to use more renewable energy
No we need sustainable energy. The population at present and the growth of the population will deem renewable energy such as wind and solar insufficient. For personal use such as cars, homes and private businesses yes it will work. But as the sole power source is absurd and will result in blackouts due to insufficient supply to demand. We need fusion energy, we are focusing too much resources to the wrong area.
wind power
Agreed 🦄
Nuclear
"other ways"
But you offer no solutions.
You are the typical protester who chants CHANGE but has no plans or models for it.
great video i love how you explained things
Superb video.
Understanding of solar panel is explained in simplest language.
Original intro, smooth animation...
10 out of 10
Great video. Tho you should remember that in the summer we get sun light for almost all of the time (Finland is called the land of midnight sun after all). It's just the winter when there is not a lot of sunlight
The best video on how solar panels work . My teacher just wanted to finish the topic😂 but this man ...
very well done with the explanation. thanks
Saudi Arabia should invest the money they've stacked from oil and cover their dessert with solar panels! They only have one major population concentration anyways. It's also important we look at solutions to merging solar panels with nature in order to not alter the current ecosystem.
Good news: The Saudi government is doing this. It was announced in March 2018.
I think so. Cuz 95% of its land is covered by dust so why not? Plus it's freaking hot out there so this is an ideal condition to install solar panels.
Actually here in the UAE, KSA's neighbour, a small city and research center called Masdar has been established for the aim to be green. My school took us for a trip there. There is a whole field of solar panels for electricity, the subway is lighted with skylights and uses electric cars. Also, the buildings don't use paint so they won't waste money and effort on painting buildings.
it is not as good as it may look, for it to be efficient it has to be clean and it may need fixing every now and then so it is not a good idea to make it in a dessert
Frankie diaz it wouldnt really taste nice
(This is a joke it was obviously a typo)
Very informative! Thanks for sharing it!
I always have Wondered how solar panels work and this video has answered my life long question this video is very informative
I make presentation about solar cell just from here, and that's enough
I really satisfied with this video :D
I thank TED-Ed for making this video
The N-type silicon (very thin top layer) actually has a positive charge due to the phosphorous impurities donating an electron to the Boron, which is added to the bottom p-type silicon. This creates the electric field needed for electrons to flow in one direction rather than recombining.
i LOVED TO WATCH THIS VIDEO FOR KNOWLEDGE BUILTUP. THANKS TO TED-ED TEAM...
Wow! understood the whole theory just in 05 minutes. It's amazing🙄 Thank you Tedx
The artwork was fantabulous for this one.
Trying to get an at home job, that’s why I’m here. Glad I came.
Thank you very much for bangla subtitles.
Seattle or Finland or VANCOUVER CANADA :)
I truly ask myself some wacky questions, but thanks for answering this lingering thought i had!
+Finland mensioned, torilla tavataan!
I used this video on my science fair, and it helped ALOT,
Great!
Quito-Ecuador
2020
It makes me mad that Brazil, where things are melt by the sun, doesn't have any solar panel. But in Japan, with not even a third of this sunlight, almost every house has its one.
it's in our hands
I am from Brazil and it is true
His sound was also as gud as the lesson he taught...magnificent voice
Thanks for helping others understand that amazing energy
Very Informative &well explained Video about Solar cell. Thank you Ted Ed Team
We can easily overcome the logical and natural problems discussed in the video, but unfortunately we can't change business and political minds.
This epic
If you are ambitious to know the working principles of solar
ruclips.net/video/zyDt4TirhCk/видео.html
If you are ambitious to know the working principles of solar
ruclips.net/video/zyDt4TirhCk/видео.html
It's not like we can't change these interests, it's just that we have to be properly motivated to force such changes
"Why are we not funding this??!"
well europe is on it's way. americans are both uneducated and led by corrupt individuals on all government levels
The Mighty Pickle Rex whoa whoa whoa, not all Americans are uneducated, but don't get me wrong I am with you on the green energy in Europe.
when your leaders are uneducated and corrupt, everyone is uneducated and corrupt, since the government is what makes the decisions and foots the bills.
The Mighty Pickle Rex Wrong.
The Mighty Pickle Rex incredibly biased and wrong, first lady really think it's possible to make sure that the homes of three million people are powered when we live in the Northern Hemisphere? European countries have a lot smaller population than us, and they don't have as much space, because they relinquished all their territory from their so they have the ability to only have heavily urbanized areas well in America, ever since Manifest Destiny. There has been a lot of controversy on where should people be able to live when the city gets too crowded because in Europe the people have basically gone abstinent, however in America we still have baby making machines
Awesome man, just awesome. Keep doing like that :)
Literally thank you so much. Carrying my chemistry project at 4am 🙏🙏
They really called us Seattle homies out like that :(
Qqq
I've been to Seattle only in The Last Of Us 2
@@gabri7613 really unique area for a game. More original than cities like New York.
wait a solar panel is just a giant diode?
+samramdebest - Right on. You can actually induce a current by shining light at an LED, given that it is about the same wavelength as what the LED normally emits.
+IchBinEin was a bout to say so, LED but in the reverse mode
+samramdebest I guess a Light Dependant Diode would be an apt description for it.
Now I wait for the first Idiot try to make Solarpanels shine by putting 230V direcly on it.....
Yup! And *every* diode is a Light Emitting Diode, it's just most don't emit in visible wavelengths.
Such a beautiful representation about solar energy ❤ the way u explained TedEd keep it up
Very good video ... the information helped me a lot
The P and N stands for positive and negative charge, but we'll make it complicated and say P and N
Lol I'm watching this in class rn and I looked this video up on my phone lolol
Well did you pass it's been 9 months
Thank you. I didn't know this much 😇
Great video - thanks:)
3 large solar plants at 3 different deserts. If one is in the night the others will power the population, if all three go out we use coal, or a rationed amount of power.
One in the Mexican Desert, Gobi Desert, and African Desert.
Maybe one in Australia because we have summer when northern hemisphere has snow. But good idea, but they would have to be huge.
+LewisTheAussie wait deserts don't have snow........
+LewisTheAussie Antarctica is technically a polar desert.
+Winter heat decrease the efficiency of solar panel =x
+Winter Transferring the Energy from cenbtralized places will cost too much loss. Also the Place is not optimal in the desert regarding efficiency and maintenance.
Third, you screw up the whole termodynamics of the planet with that.
So, in fact, your Idea sounds good but will be in reality like spending recources in a unefficient Project which will cause disasters on a global scale.
I love Ted Ed