2024 Perovskite Breakthroughs are the Future of Solar

[@UndecidedMF]

Download Opera for free using opr.as/04-Opera-Browser-UndecidedMF Thanks Opera for sponsoring this video! Do you think perovskites are going to live up to the hype? If you liked this, check out Is This Accidental Discovery The Future Of Energy? kzbin.info/www/bejne/kKq8YoOCidGgipI

[@MaDmanEXE]

That is just Chrome with privacy-breaking overlay from China

[@trevinbeattie4888]

I was wondering why Opera was doing a sponsorship, but after looking up their history found that my memories of the browser were incorrect. They started out as trialware, then changed to adware, and later on got bought by a group of Chinese investors before going public on NASDAQ. As far as I can tell their revenue model is through a contract with Google.

[@skidmoda]

I think we are still going in the wrong direction. I hope it comes out on top, but nuclear is by far a superior tech for energy. If we put the billions we basically burned on solar and wind to nuclear we'd I think be in a much better spot.

[@tracy419]

​@@skidmodamaybe if those pushing nuclear always stated they will only accept walk away safe versions that require zero active cooling, monitoring or maintenance. The kind that if the world decides to go crazy, they can passively shut themselves down with zero risk of going "nuclear". Guarantee that and market why it's the best way and you might actually get support. Otherwise, solar and wind is just fine for me and many others 🤷

[@grantramsay9956]

Reasons that I hope you’ll do an episode on fabric ductwork. 1. It’s been shown to save up to 40% of the energy cost on ventilation systems in HVAC 2. It’s LEED certified because the transport cost is a fraction of the transport cost of sheet metal ductwork 3. It’s safer, there was a sheet metal duct collapse last year in Colorado that hospitalized 6 people 4. It eliminates the need for HVLS fans, reducing energy consumption in buildings I think they are the future and I hope you do a video on them eventually

[@Sharon22301]

Decided on solar on my home in California. Decided on how I want the system to operate. Undecided on what panels to get, what batteries to get, what type inverter to get. I scour the internet every day doing research - taking notes, listening and paying attention to many points of view. This channel is one of my go-to's for information. Thank you!

[@jonathanlucas3604]

Good luck! I decided on 20kWh of lead-acid batteries since I'm interacting more directly with my system. I found some used PVs that I run at about 230 watts and use a Midnite Classic MPPT controller. No complaints with that part of the system. I regret not getting a more sophisticated inverter. 6000 watts continuous is enough for my air conditioner and most of my house, but doesn't include anything in the garage or outside.

[@helenjohnston3178]

A view from Scotland where we fitted solar & batteries last year. The technologies are going to keep moving, at some point you just have to go for it. There are good offerings now that are established so you don't have to be 'bleeding edge'. If you can, find a recommended local fitter. Consider if you can get everything in one system that has one interface to talk to it all. For example, our fitter included a heater for hot water so the system could do that in preference to export. Wasn't in our original plan. It has been really successful but, as it's a different make to the other kit, we can't control the different priorities as much as we want. This is a minor quibble though. Best of luck.

[@Sharon22301]

@@helenjohnston3178 I think that way too - the tech will continue to improve. I can't not do it because I think systems will be better in a couple years. I do know they will be better years from now but that won't stop me from making the best decisions now with the tech that is out there now.

[@ddyoder]

I’m a California resident and got solar within the last 3 years. Though NEM 3.0 makes the ROI take longer, if you have money upfront to pay cash for your PV system and battery it can still make sense. Especially if you drive any EVs or live in an area affected by blackouts. I’d recommend using a service like SolarEdge if you don’t have a trusted referral

[@mythicallegendary3992]

Check out signature solar, they have tones of different products from different competitors.

[@ArcticsVenom]

I used to work for OxfordPV (I left a few months ago to start a PhD in organic photovoltaics) and it's always nice to see them mentioned. They've got some of the best experts in the world working there, and I know full well they're on track to produce in no time, especially now I'm not there holding things back :)

[@adamomiceli]

😂😂😂

[@Milkshakman]

Is "organic photovoltaics" the same as "biophotovoltaics"?

[@ArcticsVenom]

@@Milkshakman Organic in that the active layer of the photovoltaic is made up of chemically organic material Mostly just large conjugated molecular acceptors like PCBM or Y6 mixed with polymer donor materials like PM6 What are biophotovoltaics? Living materials generating electricity? Like algae and stuff?

[@Milkshakman]

@@ArcticsVenom That's really interesting! Yeah, biophotovoltaics is just studying the use of photosynthetic microorganisms to generate electricity (currently the voltages are quite small). It's a very niche area of research that I kind of semi-actively keep tabs on, that's why I was surprised to see what I thought was a researcher of a related field. Keep up the good work!

[@cainweber1978]

Have you read Professor Barnham on this in Burning Answer? The holy grail is making methanol or ethanol to power a hydrogen cell for your home car. Crazy stuff really exciting

[@danilooliveira6580]

I think people underestimate how much better Perovskite cells can actually be. they are sensitive to the visible spectrum with a small dip to ultraviolet, while normal cells are mostly infrared. but here is the thing, because of rayleigh scattering, how much light scatters is inversely proportional to its wavelength, meaning the light that perovskites are more sensitive to get scattered more by the atmosphere... and that is not a bad thing, that is a feature, because now you have a solar panel that is not just sensitive to the direct infrared light, but also the scattered visible light, meaning it still generates energy when not in direct sunlight, it will also respond well to scattered and reflected light. meaning peroviskites are much better for example for vertical bifacial solar panels.

[@MrCiaranm]

Interesting thought, although I am not sure the conversion rate is constant with light intensity and/or angle of incidence. I imagine that will be a function of whatever architecture proves viable in the market.

[@CharveL88]

Sounds like copium. Absolutely none of that matters - beyond niche applications - if the value proposal for perovskites doesn't make sense. I'd be hesitant to invest in yet another corporate solar boondoggle with probably anyone other than a company like Tesla because the devil is in the details. If you can't make them cheap enough to be competitive at scale for what...an extra 5% efficiency...then it looks like just another venture capital stock pump scenario. Also, as a general rule, if Bill Gates is for it then the consumer interest definitely isn't the priority, as demonstrated over and over again with the type of things he backs.

[@debashritmishra5019]

You're right that perovskites' visible light sensitivity and Rayleigh scattering are interesting! While scattered light can be captured, it's generally less intense than direct sunlight. I'm curious to see more research on how much this actually contributes to overall energy generation compared to direct sunlight capture. Perovskites are definitely a promising technology though!

[@danilooliveira6580]

@@MrCiaranm it's smaller of course, but it's free gain. even if it's not the maximum possible energy they can capture at any given moment, it's more than a normal panel would at the same conditions. so if, for example, horizontal panels are not as logistically viable for your specific situation, you could use vertical bifacial perovskite instead and lose a lot less than you would with vertial panels. but even for normal horizontal panels, we are now talking about panels that will not only generate more energy, but will also have a less steep loss of efficiency curve as the sun goes down. it's a huge improvement over normal panels that the simple "more 4% of efficiency" don't make justice.

[@vnxdragon]

this mofo made a video on peroviskites 2 years ago and here we are .....i'm beginning to suspect all his "blah blah blah future blah blah" video are fake.

[@2dRgr]

Your program on Vertical Solar has changed my thinking forever. I see applying it to Perovskite panels as well as any others, reducing temps, damage, etc. extending longevity by eliminating several wear factors. Thank you and your brother for “Still Undecided”. I love the brotherly interchange and actual follow-up to thought provoking comments.

[@OldBillOverHill]

I have the documentation from MIT and the raw solar cells to build the collector. Just need to buy the land and go for it. Combined with an earth battery and solid state TEG I will be crazy secure and off grid.

[@lucashorigan7290]

You put out perfect content for nerdy homeowners that are looking to maximize. Thank you.

[@tktspeed1433]

homemaxxing to get the girls :D

[@ericmanley8875]

If anyone is curious, a big reason for the instability issue is that MethylAmmoniumLeadIodide (the main perovskite solar compound, although I'm sure newer advancements have all sorts of fun dopants or substitutions in there) is fundamentally a metastable state. This leads to some of the great charge transport phenomena, as perovskites are remarkably resilient to grain boundaries. However, being metastable means that injections of energy from things like heat, sunlight etc... can cause the PbI to leave into a more stable, less useful phase. Hopefully some of these researchers can solve this, but it is a truly tough nut to crack as the thing that makes the perovskites so efficient is also the heart of the problem.

[@MrThacke]

Perhaps implementing the recent 1199 Korean partial superconductor success chemistry onto the lead aspects of perovskite?

[@baomao7243]

Entropy. (Or, as I more commonly state, “real world.”)

[@a.b.d8927]

Sure it would 😂 that was not a superconductor. The problem is that perovskites (currently a bit more stable formamidinium instead of methylamonium is used, often alloyed with Cs) are inherently unstable under illumination and bias due to electrochemical oxidation of lattice iodide, which then triggers chain reactions leading to ultimately decomposition to various volatiles and PbI2.

[@emmettkeyser1110]

Folks getting way too excited over 15% increase in efficiency. lol. Efficiency alone doesn’t make up for total cost of ownership.

[@mnomadvfx]

@@emmettkeyser1110 "Folks getting way too excited over 15% increase in efficiency. lol. Efficiency alone doesn’t make up for total cost of ownership" #1. TCO is the efficiency gain + viable production time (25 yr target) + panel cost. Obvious it's going to take a while for scaling to take effect to reach current Si panel costs, but we all know that so you aren't saying anything anyone with half a brain doesn't already know. #2. The examples cited in this video are just the more stable options currently lurching towards production. There are tandem cells still in the lab with >33% efficiency which is over 50% more than the best commercial Si panels. Give it a few years for the perovskite supply chain to beef up and production scale and those more impressive figures will start to be accompanied by stability too.

[@Keith80027]

It is very interesting to me as a solid state physics from 1976 how much research and development has gone into the PN junction with huge increase in current. Love hearing from you .

[@刘勇顺]

do u know how to study energy band?

[@Bigphish5280]

It's been fun to follow evloving PV tech with you... thanks for the updates!

[@zeroone2221]

Thank you for everything you do brother!

[@energyideas]

This video needs to be updated daily because the PV materials world is constantly changing. While crystalline PV maintains a stable, proven technology. Looking forward to bi-facial perovskite that has passed IEC 61730. Thanks.

[@privacyvalued4134]

0:00 LOL. The choice for the background audio clip at the start of this video is hilarious. A choir of angelic voices. Thanks for cracking me up.

[@n2l2l]

Saule Technologies from Poland/Japan prints perowskites on large sheets of flexible plastic. They already have factory

[@dertythegrower]

​@@BobDevVi agree, but it is the way any good idea starts.. until you can scale up the idea. And most inventors are not rich enough to buy a small business building with extra hands andor employees.

[@n2l2l]

@@BobDevV They doing research from at least 8 years, factory has 4 years now, they doing business with one of largest solar provider in PL and developers to provide solar powered buildings facades. It has more than 1-2 years....

[@n2l2l]

@@BobDevV They cooperate with Columbus Energy, Ergis and Skanska. They/ve been at IDTechEx Show! in the US. Yes, with their tech it is mature.

[@brt5273]

​@@BobDevVthe way to solve the issue of degradation of some component is to make it affordably and easily replaceble in the main system, like replacing an AC filter. That's a problem that contributes to waste but if that can get the conceptual tech running and profitable, it can be improved over time to be more durable and lasting.

[@LittleBoobsLover]

yeah the way that 'startup' is communicating is far from good. They took public money, they made some real prototypes and installation on building blinds aaand there is no information about specification, energy produced, how long did they lasted. They opened small factory and what? No information about anything new. No info from their partners - are they producing anything with that technology?

[@sjsomething4936]

Thanks very much for the update Matt! I recently had my home re-shingled with the expectation that perovskite-based SPV would be produced commercially soon and I could install on the still relatively new shingles to help extend their lifespan and generate electricity for me as well, so this is definitely welcome news to me!

[@ElectricFS]

You go Oxford PV! I worked at that location when it was still Bosch Solar Energy (CISTech). Happy to see there is still life in PV development in Germany.

[@RFing22]

Exactly why I’m waiting to do solar on my house. Next 5-10 years their gonna get so much better

[@jebes909090]

or it wont be any better and you're just waiting for nothing

[@Sight-Beyond-Sight]

Videos like this are why I am subbed. I have been looking to solar for years, but the efficiency is not high enough to mitigate my entire bill.

[@LAZ-org]

Voltron ref in vid checks out 😉🫡👍

[@danielclermont4631]

When you give me 30 amps to my travel trailer on demand give a call.

[@michaelmartin9022]

So what's stopping you reducing your bill right now? I've got 400w and a Bluetti AC200Max. No, it's not running my house, but it runs an urn, thr odd dish-wash and a portable AC alright.

[@michaelmartin9022]

​@@danielclermont4631Modern LiFePO4 batteries (no, they don't "explode") can put out 100a no trouble

[@Sight-Beyond-Sight]

@@michaelmartin9022 I keep thinking that the next big tech leap will be released a few months after it is completed and I will regret building it. Also I am completing other projects and have not had the time or money to get to it. As I said, I have been looking at what I can do next. Currently working on my power panel to add future options including a transfer switch. I am passively getting my systems ready before purchasing the parts for the next leg. I have even debated on just a simple plug-in solar panel. I will probably just put in the core systems before approaching the panels.

[@udavster]

Perovskite has been the future of solar panels for the last 10 years, I think. I won't believe it's the future until I see the mass production and usage.

[@Khaos-y7n]

Yes and what will the price per watt be?

[@jonathangay5352]

... Well that would then be the present.

[@johnheath8882]

@@jonathangay5352 ...but the present doesnt exist yet? Is this a 'Back to the Future' thing?

[@mnomadvfx]

I think that the ideal is a tandem perovskite cell with multiple layers tuned for different em bands. Until that happens tandem Si + perovskite will be a cheaper intermediate tech.

[@mnomadvfx]

@@Khaos-y7n " Yes and what will the price per watt be? " As with everything, the initial price will be drastically more than what we will see after a couple of decades scaling.

[@Tony-Stockport]

I'm 11 months into a solar/battery/EV setup and your channel has been inspiring me since lockdown. I first looked into solar in 1999 when a panel's output was 250kW. My setup has 410kW panels so the advance is clear to see. We may be near the ceiling of PV's output potential but make no mistake in 2024 a normal sized family house can have most of its energy needs met by solar.

[@omnidrohne]

410,000 Watt per panel. That's impressive ;-)

[@Tony-Stockport]

@@omnidrohne 🤣 Good spot. I do exaggerate a bit.

[@deang5622]

​@@Tony-StockportWhy not edit your post and fix your obvious error?

[@crazyfrogextended]

...as long as they live in Arizona

[@dertythegrower]

All the solar deniers always use solar data from 2010 solar.. ignoring solar is getting better every year, just like CPU chips or 3D graphics cards..

[@skidmoda]

Yep well toss billions at a problem you gonna see some improvement. Doesn't detract from most of their points. Nuclear is still far more reliable and cleaner.

[@major__kong]

My beef with solar isn't solar. I have portable panels for camping and what not, and I might add some to my home. But it's cloudy half the year where I live. The issue is it being forced down my throat like EVs. What if I said, for essential liberty, we're going to force everyone to buy a firearm and take firearm training. You wouldn't like that very much, would you? So why should I like government forcing me what I can buy? The reality is that we'll need a mix of energy sources, even fossil fuels in spite of what the religion of green energy says. There's no such thing as green energy. Any energy extraction from the environment has negative consequences. We should be striving for less overall energy use not more efficiency. More efficiency just encourages people to use more energy. This is a well known but not well publicized effect

[@policeman1104]

@@skidmodanuclear is also much more expensive. Solars strength is its cheapness. Batteries can make up for a lot of reliability. By the way this is only a problem in areas without a lot of sun. And even there solar is very cost effective. I’m not even saying that we shouldn’t build nuclear. It should be used selectively though because of its cost. :)

[@illustriouschin]

It is not getting better. Stop scamming people.

[@Wasengenyie]

The problem is the storage, inverters, charge controllers. They aren't falling in price. They subsidise the panel. What a con

[@davefilicicchia6341]

It would be great if the Perovskite hurdles have finally been overcome. Yay for higher efficiency!

[@powoxi]

It's a brilliant product that has brought great convenience to me

[@franciscocunhaetavora9132]

Every year is the year of perovskite

[@craiggordon8723]

It has been really disappointing waiting for Perovskite. This technology is taking way too long to perfect. Once someone claims to have it - then it is going to take 10 years to find out if the real degredation of electric production has been worth it. In the meantime electrical rates keep going thru the roof. The only thing that may make solar worth it is the upcoming electrical shortage caused by AI and electric cars. Rates could go thru the roof!

[@hamjudo]

Just to clarify: by _year of perovskite_ the marketing managers mean _the year to invest in our company's version of perovskite._ In most cases this is over optimistic hype for potential investors. After perovskite technology is refined to the point where it is ready for wide scale deployment, it will take years to scale up the manufacturing to the point where it will see wide scale deployment. (If that ever happens.) I got some early flexible perovskite solar "panels" from a company that was going out of business. They only have single digit efficiency, but the intent was to make the cost per installed watt lower than silicon panels. In theory these could be glued to metal roofing. It was a plausible business plan when proposed, but they assumed that the cost per watt for silicon panels would drop at 15% per year. It actually was dropping at 50% per year. In the years it took to get their factory running at preproduction volumes, their business case fell apart.

[@a.b.d8927]

Huh? The technology has made faster advances than any other solar technology in the past, NREL record efficiency chart is a great comparison of different technologies. It is still at least 5-10 years away from the market, if it ever gets there. And it is very far from environmentally friendly since research into safe, lead trapping encapsulation is quite recent, solvents used (dmf and dmso for most efficient devices) are quite nasty, etc. Tin-based is not the answer, since environmental impact based on LCA is actually worse.

[@EpicVideos2]

​@@worstedwoolens Ai (LLMs to be specific) is very much an electricity hog. Training takes immense amounts of electricity but inference when used for consumers is actually considerably more. GPT-4's inference requires 128 A100 gpus which is basically a small data centre. With 0.2 billion monthly active users, 1 million concurrent users at peak time is not unreasonable. Inference for LLMs is batched at about 128, meaning they could need around 1 million gpus for inference. They trained it on 25,000 meaning they might use as much as 40x the electricity for inference than for training. The electricity demand of AI is expected to quadruple by 2030, taking up as much as 3% of global electricity demand!

[@rfree863]

Marketing hype for perovskite. Silicon is very cheap, nontoxic, highly durable, and the best are over 26% efficient cells and commercially available. everything perovskite is NOT.

[@lightningninja8585]

Slight correction: Whether it is p-i-n or n-i-p is decided by whether the p or n layer is deposited first (not the sunny side). The perovskite changes behavior depending on what material (p or n) it has been deposited on then. P-i-n (or inverted) cells are more stable probably because of less chemical reactions and C60 being the n layer, amongst other reasons. Thanks so much for your exciting videos!

[@ironysteeth]

Nice update. Advances definitely need to be had. If we can knock down the costs of the solar panel to be the equivalent of 5 years of energy costs, it would be transformative.

[@drewdevlin9192]

in Australia they are. 5kw pv systems can be $4500 and reduce bills by $1,100 per year. Why solar is so expensive in the "us of a" is something americans should be questioning

[@stevenjostwald]

I have a year 10 education in Australia. Equivalent to a sophomore in high school. I like who I am. In this video you start with Perovskites being the next big thing in Solar, and then introduce the video as to why we should even care You are the reason we should care You’re in my top 10 KZbinrs I love and trust Connecting with you makes me feel good about me

[@MicahFunk]

I love learning (I'm the perpetual student) about these advancements in solar energy. The biggest obstacle to overcome for solar energy is the fact that it costs money to get them. For the majority of people these days it wouldn't matter if it cost just $5k to become completely energy independent because it might as well cost $5 million. After all, they simply cannot afford even $5k. Look at a single mother trying to work two jobs to break even every month. Statically, we are worse off now than during the Great Depression. I'm seeing people use what credit they have left to buy food. Unless something drastically changes for these people they will never be able to afford an energy-efficient home or even solar panels.

[@swipekonme]

it needs to be subsidised in some way, maybe along with solar, if they install a weather station, they can upsell that data to subsidise the panel to you

[@cummerou1]

Regarding cost, i've seen people mention community solar being a possibility, with "credits" being allotted based on how much money you put in. So you basically get a partial refund on your energy bill.

[@13thxenos]

If only people who can afford it use it, soon the whole price of electricity goes down. That would benefit everyone.

[@DmitriyLaktyushkin]

As soon as cost is low enough people will start buying in. At the moment outside of some exceptionally sunny and expensive locations you are better off investing your money into market and that's the real reason solar is not taking off.

[@markjmaxwell9819]

25+% efficiency and a 25+ lifespan is something worth talking about. The perovskite and silicone tandem cells seem to be a good bet at the moment with the balance between longevity and efficiency solved. So basically the perovskite catches more of the visible spectrum of light to be converted to electricity with the silicon cells catching mainly infrared. I remember 15% efficiency and a fifteen year lifespan not that long ago so it's good to see solar is coming along nicely. We need to improve and evolve all the renewable technologies with recycling being factored into any new design to help with a cleaner future. Carbon fibre wind turbine blades that can be shredded with the carbon fibre reused and repurposed is an example. Whether people think renewable energy is the future or not it's not going to disappear so to embrace and try to improve it is in everyone's best interest. 😎🇦🇺👍

[@spamuel98]

Honestly, the only solar panel breakthrough I'm excited for is when someone starts selling miniature solar panels that can sit on the balcony of my shitty one bedroom apartment and plug into a standard wall outlet to lower my electricity bill. Anything over a couple hundred bucks is too expensive.

[@magicmaze1998]

Already exists (At least in Germany). Mini modules of 400-800kw. The cost starts at about 300 (without installation) I think. They are called "Balkonkraftwerke"

[@grantbuttenshaw]

Can you plug them into your wall socket? No. ​@@magicmaze1998

[@taffygeek]

Balcony solar. Just install yourself and can plug into a mains outlet are available. I'm not sure of the cost though.

[@grantbuttenshaw]

@@taffygeek DC solar straight into AC wall socket?

[@marthvader14]

Already exists

[@chaerulqalbiam7031]

1:07 Indonesian students in Korea, my seniors from Chem Dept. So Proud🎉🎉🎉

[@sreepadhprakash616]

Your videos are a great help for my research and Inventions.❤

[@AhTechus]

This is the best video I’ve seen on this topic

[@matiaslauriti]

It is crazy that our best commercial solar panels have 25% (more or less) efficiency. Today, when there is so much science and engineering into everything, knowing that a solar panel is 25% efficient and not 50% or 70% it is just crazy (due to what we are used to nowadays). I am sure I will be alive when someone finds a solution to the efficiency problem and goes from 25% to 60%, and later, maybe better, reaching 80% or 90%

[@billtaylor292]

Cars have been around over 100 years and they are still less than 30% efficient. Nobody mentions that.

[@matiaslauriti]

@@billtaylor292 not cars, but combustion engine. Electric cars are 98% efficient...

[@matiaslauriti]

@@jamesmcmanus That is true, but I was not talking about the other topics, just how efficient a solar panel is right now with all the excellent science and engineering we do have, just that!

[@stranger0152]

@@billtaylor292 Not really. When Turbo is used the efficency of combustion engine jumps to 60%

[@billtaylor292]

When you are paying for fuel, efficiency is important. Sunlight is free, the only downside to lower efficiency is the larger surface required for a given power output. Aside from that, the maximum accepted theoritical efficiency of silicon (which represents 99.9% of all solar cells in existence) is about 32%. There are alternatives using materials like cadmium or gallium arsenide, but their price and toxicity limits their widespread research and potential market. Due to the limitations within our current semiconductor technology, and the boundaries of the Shockley-Queisser Limit, producing a solar cell of any chemistry with an efficiency of over 45-50% is unlikely anytime in the near future.

[@dukeshaver199]

Hi Matt absolutely love your channel have been hooked for some time love the feel of the channel also love how you edit and the lighting audio et ceter also love the cuts and editing keep up the great work brother.

[@ChrisBairKeto]

the "that's the end of the video" gag was very well done!

[@typicalrockandroll]

I’m so glad solar panels are improving. I did a deep dive years and years ago and at the time the outlook was that solar couldn’t become any more efficient and ultimately we’d run out of raw materials. This year alone has had so many breakthroughs

[@Küçükdemirs]

I love your videos :)

[@RS_Power.]

Really glad your touching on this topic before it becomes more mainstream. Exciting to see where we go with this technology and how soon we can use it in the commercial market. Great video as always Matt! 🙏

[@fuzzy-02]

Imagine if we manage to get 80% efficiency instead of 20%ish. So many apocalypse novels would change their entire plotd!

[@Shaker626]

Thermodynamically impossible. That's like trying to get 80% efficiency from a Diesel engine.

[@elijanzen4015]

@@Shaker626 I’ve seen designs for solar panels that have multiple layers of solar cells that each capture a different portion of the light spectrum. Waaaay more complicated, but could get to that 80% in theory.

[@erictuffelmire6826]

You should probably search Shockley-Queisser limit

[@jasonbourne7171]

I have same thinking if solar have 80℅ efficiency how much it give output in rain and cloudy weather

[@TheExecutioner4]

@@elijanzen4015 dude i just thought about that and now i see ur comment. Like they started with cpu's making in layers so its possible. Its probably expensive but normal solar panels were too few decades ago..

[@scottr4086]

I never thought Voltron and solar panels would be in the same sentence! Well done sir, well done

[@sameerr0143]

Hi Matt, The issue i would like to hear is the recycling/disposal of the solar tech. With world almost in a mad race for solar energy harvest, similar to the popularisation of plastic in late 50s, without knowing how to "bury them after their death" they are going to come back as zombies to haunt humanity in long run!!! Please make some videos on emerging recycling or disposal tech in solar and wind energy sectors!! Love your content!!!

[@sameerr0143]

@@benjiro8793 awesome!! Thanks for the info. But here is the thing, China and India are building solar farms on large scale with India getting a e-waste policy just last year with already 187,200 tones of solar waste already existing with no recycling in sight!, in china we have no idea. Most of the tech for recycling exist only work on smaller scale or at scale up tech phase. We made the same mistake with plastic in the past, over sold recycling, exaggerated utility and safety! Are we making the same mistake with Li battery and solar tech????

[@samuelwinburn210]

First off, this is my first time seeing you, and this is great stuff. You’re not over sensualized and very practical. Second, sweet community note thing, that’s cool! Third, I’m an EE major, and I just took a course “Solid State Devices” which talks about this stuff. All in all, his charge carrier explanation for the interest of time was great. Another place you can learn more is by finding Simon Sze’s work on semiconductors

[@tjwreds1]

Voltron reference. well done.

[@LincolnDWard]

For anyone interested, perovskite is usually a high-pressure mineral (most of Earth's lower mantle has a perovskite structure), so that's why it's unstable at everyday pressures (and why all this engineering is needed to make a durable layer out of the stuff).

[@bluelemonify]

This video is incorrect, the efficiencies you are referring to (25%) is for tandem panel with perovskite as top junction + standard silicon as bottom junction, so cost is higher. Perovskite itself is about 5-10%.

[@UndecidedMF]

Yes, the cells I referred to are tandem cells, which I mentioned in the video.

[@erictuffelmire6826]

You literally have cells of higher cost per watt and now you also have lead or cadmium.

[@justincase5272]

Good to see you're revisiting the Perovskite advances! More to come.

[@tinkeringinthailand8147]

Fast forward 100 years (if we make it) maybe Matt's grand child will be debating on 70-80 efficiency, maybe more ;)

[@erictuffelmire6826]

You can't exceed Shockley quasar limit which is about 30%

[@skirata3144]

@@erictuffelmire6826Yesn’t the Shokley quasar limit solely applies to single junction cells. The current record for solar cell efficiency is already far past it at 47.6%.

[@oddsman01]

@@tinkeringinthailand8147 Consumer solar panels today are around 20% efficient for the more expensive option, 15% for budget models. In the early 80’s, 40 years ago, they were about 10%. For consumer panels, efficiency very likely will never rise above maybe 30% (which is still an amazing number). The major breakthroughs will probably come in cost and durability.

[@autobootpiloot]

Wow, I’m amazed at the power a solarpanel gives in your area. I’m from the Netherlands and we have the second most solar panels in the world (behind only Australia). A 400wp solar panel would give a max of 360kwh a year. And that’s under perfect conditions.

[@kenofken9458]

It's been almost 20 years, but the last time I was in Amsterdam, I don't recall seeing a lot of sunlight. On an 8 day trip I think we had one, maybe two of clear skies.

[@autobootpiloot]

@@kenofken9458 it depends on the season. But we are on the same longitude as New York City I believe so the winters are very dark. The best day of the year is about the same as the worst month of the year with my panels.

[@swiftlaker6]

This is the next blue LED

[@bryanchannell7715]

I used to study all these types of panels and so many more. thank you and your team for putting all this together so well matt

[@kma3647]

I love the audacity of a guy who presents himself as "undecided" who does a video on solar panels and features his own very nice house (paid for by his YT videos and activism) covered in solar panels. He then introduces a company and it's proprietary method, hawks his sponsor, hawks his own videos in a crosslink for even more revenue, and concludes that this company's breakthrough is the next big thing. Clearly "undecided." Green energy indeed. It's that double entendre that gets ya every time!

[@garrygballard8914]

I have been waiting for this one Matt. I heard about Perovskite many years ago and knew they would be the next advancement. You may remember me asking you about them. Tks for the update Matt. I love watching you. You’re always on top of things. 👍 bud.

[@chuckakung]

we don't need to hear about more breakthroughs. how about the next annoucement is the availabilty of a 400W perovkskite panel that has a 25 year warranty and is cheaper than a chinese silicon panel.

[@Paopao621]

Man, material science is amazing 🤩

[@john38825]

This is one of the technologies I've been hearing about for nearly 20 years just waiting for it to brrak into the market. Im hopeful but also pessimistic assuming itll be another decade or decades until it's really replaces silicone.

[@LDSkinny]

I'm in the same boat. I love to learn about these tech breakthroughs, and I do get excited for them, but I also recognize that logistics are often where the fun stops. An effective ~15% increase in generation for solar is pretty massive though. If you combine that with breakthroughs in battery tech, it could completely shift the viability of grid scale renewables.

[@brt5273]

Yeah I've been hearing about the dream of solar since I was a kid. Every year or two I see some new breakthrough that promises to advance the tech exponetially and place it within the grasp of average citizens. Then shortly after, that particular advancement either turns out to be bogus or info about it dries up with no explanation. Now I'm nearing the end of my life and we're still miles away from it being affordable enough up front and efficient enough to foreseeably make the jump to being a viable complete replacement for traditional energy systems. It seems the only tech that does advance and get implemented into society are those that cost us more and are designed to worm themselves into invading our privacy and further controlling our lives. I don't expect any sort of advancement like this to come to fruition before I'm gone, if ever. Good luck to future generations but don't hold your breath for energy utopia.

[@danilooliveira6580]

@@brt5273 I think you are just not seeing those inovations, because they are there. PV cells efficiency increased by more than 10% since the 90's, their durability also increased drastically, from something like 20% losses in a decade to less than 10% in 20 years. all the while the price dropped from US$10/Watt in the 90's to US$0.35/Watt today (or around 1$/Watt without subsidies). the problem is that Solar is ALWAYS improving, there is always some new revolutionary tech up ahead, so you never see the small cumulative improvements thoughout the years.

[@patrickrosa848]

Sorry? Perovskites photovoltaics have been discovered only in 2009! How can you have been hearing about it for 20 years?

[@grahortarg9933]

@@patrickrosa848 he speaks about solar panels as a whole. But I think he is kind of mistaken - solar panels are already pretty much in every third rural household here in Latvia. I see them everywhere. And we are a poor country with not much solar light in the year.

[@GeoffryGifari]

Among the renewables, which ones improve at the quickest rate?

[@thegaminghobo4693]

Solar. The other ones are sort of “solved” in the sense they’re very efficient and you can’t do much to improve it. Geothermal just uses steam which we’ve been doing for hundreds of years and wind turbines just use electric generators which is a subsection of the steam part.

[@thzzzt]

Yes, but how do I safely and discreetly expose my prostate to the sun?

[@corblimey8729]

This is the best channel for strategic info

[@willyouwright]

Elephant in the room.. lead... it's toxic.. how to manufacture and recycle or dispose..

[@UndecidedMF]

Good question. There’s actually progress on that: kzbin.info/www/bejne/fHTXdoqsmt6GqaM

[@anderslvolljohansen1556]

​@@UndecidedMFI expected that progress to be lead free perovskite solar cells, but all I saw was recycling of conventional silicon based solar cells.

[@NazimUdDin-tg8jg]

Same as Lead acid batteries 😅

[@UndecidedMF]

@@anderslvolljohansen1556 yes, that’s what they’re doing now, but their tech can work with a variety of panel types.

[@chrisprobert6]

Lead is only toxic if you keep it in your pocket. And lick it, four times a day..

[@tex8917]

i appreciate your channel so much, the breakthroughs in green energy and energy storage is quite encouraging. I am most hopeful that there will be breakthroughs in storage soon as that seems to be the biggest weakness hands down.

[@sagetmaster4]

One day...Matt will decide

[@Impatient_Ape]

The application of perovskites to solar energy was predicted decades ago... I was there... at the specialized conferences and conference session on using density functional theory to model the electronic band structure of materials like KNbO3, PBTiO3, SrTiO3, and other perovskite alloys. It's only taken 30 years to get here, but wow, it's nice to see it becoming a reality.

[@pedtrog6443]

I'm astonished at the number of knockers in the comments. What are people frightened of?

[@Awesnap]

Remember this is the internet. This thing I have very a thin grasp of knowledge of has created an opinion that must be expressed. If it doesn't cost -200 corners per sq mile and get 15 gigawatts per unicorn fart it's not worth pursuing

[@magesalmanac6424]

People hate change because it scares them

[@oddsman01]

Maybe it’s because they’ve heard this same story over and over for decades now. In 1959 there was a commercially available 10% efficient cell. In 2024, commercial cells are about 25%. The breakthroughs will almost always be in cost or more readily available raw materials, with a cap of maybe 30% efficiency years down the road. No one cares about theoretical or only in a laboratory environment. Real world is all that matters.

[@vplph]

Your videos are exhausting... They make me research and read more on the topic after i watched your videos... Vety exhausting 😉👍👍👍

[@gavinator354]

haha yessss Voltron!!

[@CamTracey]

Totally thought the same thing! Love it

[@satsumaimox]

Can you make a video on Thorium?

[@Entropy3ko]

I work with perovskites: I can safely tell you that they are not going to revolutionize solar panels any times soon, due to their poor environmental and operational stability

[@danielbenner7583]

What a vague criticism, hard to take seriously.

[@steve-qe7tj]

It's a moot point how much sun is actually used, since it is an unlimited resource. The more different ideas and products available, the better! The market will sort them out to the most inexpensive and durable items. Also we need to work on gadgets to clean these solar displays regularly. 💙💙💙

[@blardomodica]

Matt dude, please consider that there are contexts in which "why you should care" is definitely redundant to whoever can watch one of your videos understanding its contents ;D

[@pohkeee]

☝🏼🤓

[@blardomodica]

But then... that was so redundant! Why were you both so understanding, just tell me "get a life!" 🤣🤣😜

[@pkiddy0071975]

Matt! Please do a review of SmartFlower Solar. We need it!

[@nunyabiz1780]

But with fusion "just around the corner", why bother?

[@skidmoda]

It's 20 years away...again.

[@besknighter]

Because fusion is "just around the corner" for the last 50 years. Yeah, recently there has been some pretty great advancements, but not enough to warrant a shift from an already-working-and-getting-better industry to one that still needs to prove itself. Don't get me wrong, I'm hopeful too, but I also think practicality, urgency and diversity of tech are important factors.

[@blinco1539]

Even if it is “just around the corner” in a lab condition, scaling to a usable size, building plants, and improving infrastructure enough to manage the power output is going to take a while

[@nunyabiz1780]

@@besknighter but I heard it on this channel...just around the corner...hope in one hand and wish in the other, see which one comes true first.

[@rustygoods8015]

Let's not put all our eggs in one basket. Especially when the basket is half woven.

[@DivorcetheHorse]

Well, it's like this! As a consumer, I pretty much don't care what stuff is made of so long as it isn't toxic on the user level. All that matters is that it's better and it works as longer.

[@TimeFlies-d8b]

The perovskite research has been chasing effiiciencies of tiny devices for years now. The area you see on picture is not the area tested for efficiency (theyre much smaller) They fail miserably when scaled up, not to mention toxic lead

[@erictuffelmire6826]

The left wing people love fake futurism and green tech. As someone who has made these materials an often overlooked thing aside from lead and cadmium as you mentioned is they use very rare and expensive elements like indium and gallium.

[@donpuffalt2996]

Your information is very well presented, and your diction and intonation are excellent. One question: is it necessary to race through the material at such a breakneck pace? It would be easier to process the volume of information being presented if the narration was slightly less rushed.

[@martinsinclair8849]

You lost me when you mentioned gates he is not to be trusted

[@maureencallahan1604]

Gates is a globalist you should not trust any of them.

[@carloscontreras3633]

Yeah, I’m even getting a warning to not say mean things by KZbin on this post.

[@wisdomn]

ruzzian propaganda

[@FullStackFool]

Why?

[@fosterjful]

Very fascinating work. If there is ever some product testing; I'm your Huckelberry

[@thisiskaos9249]

Superman and woman 🦸‍♂️ 🦸‍♀️ have just spoken to me. The next iteration of Perovskite is going to be Kryptonite! Jokes apart, this was indeed an excellent, enlightening and encouraging video. Thanks for collating the updates.

[@dennisestenson7820]

Exponential growth is remarkable. When I was young, in the 80s and 90s, it seemed like we'd already discovered mostly everything there was to discover. My oh my, how wrong I was.

[@T-Wrex1864]

I was at Sharp electronics and youd be lucky to get any sort of efficiency vs cost out of any panel that came out of there before it closed.

[@DezMak]

The perovskite info is very informative but it's your summary of the Opera use cases that's pushing me to switch back after many years of not using it. Thanks for the concise summary of what it now does.

[@北京-t6p]

你们做得太好了！

[@abdieverkinzhon6502]

I am proud to be a part of KAUST. One of the best campuses in the world despite being so young

[@mystechry]

As a German citizen who has lost faith in our industry it always makes me happy when I hear that behind the scenes there are some local German and EU companies that still lead the industry and that our situation is not entirely lost. If only we could keep that momentum and not sell it al to china once again ...

[@Brian.-vc6yf]

Nice video. Hopefully this and other technologies will continue to improve solar panels and other sustainable systems.

[@rimor3579]

Matt, if possible, could you give us an update on perovskites at least once a year. This technology reads and sounds very promising. Thank you.

[@Seikatsu121]

I feel like this is going to be one of these things where people rave about how great the technology is and we end up never seeing it ever

[@Allan_aka_RocKITEman]

Great video, Matt...👍

[@martinjf467]

How come your main solar PV array is not set further to one side on the roof? You could have got at leat another full row up that way?

[@spinnymathingy3149]

So what’s the most important thing, the size of the panel or the cost per watt ? I’d suggest the cost

[@fabouwes9240]

Hey Undecided! In your next video, could you give us a deep dive on the recent graphene breakthrough from Tianjin International Center for Nanoparticles and Nanosystems ?

[@mikolajpodbielski]

how compares this to multi-junction silicone cells?

[@ShaneZarechian]

How do you keep yourself in the know about these things so you can make these awesome vids for us?

[@GM4ThePeople]

Good luck to the Frogpopper Institute, sounds exciting!! o/

[@ajjskins]

Another great video Matt As always!!!

[@SpidermanandJeny]

is it possible at some solar panel could eventually get to 50% efficiency? I'm really just asking the question I have no idea.

[@MuhammadmuzammilAhmedShah]

Nice explain

[@CNC295]

Have you considered doing audio books? I have to say that I think your voice would lend itself very well to doing bodio books Please seriously consider exploring that as a career option A c areer in addition to what you currently do. And thank you.

[@TechnoViel]

Is there a way to deactivate the automatic audio translations on this channel? While hearing a voice that resembles Matt's a lot in German is quite impressive, it is just not good enough to replace the original. At least not to people who don't have a problem listening to the English original. Turning this off for each video can be cumbersome on some devices (like Fire TV), so an option to turn this off permanently would be highly appreciated!

[@clivefinlay3901]

Had Sunpower Maxeon installed 9 years ago, they were the most efficient solar panels available at the time and are still a top performer with 21% efficiency.

[@Stepica]

vertical tab bar is the way, my guy