Exploring solar panel efficiency breakthroughs in 2020

Exploring solar panel efficiency breakthroughs in 2020. Get Surfshark VPN at https://surfshark.deals/undecided and enter promo code UNDECIDED for 85% off and 3 extra months for free! The past year has had some really interesting advancements with perovskite and multijunction solar cells, which are going to have a big impact. Plus, what if I told you it might be possible to harvest power from shadows?

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50 Comments

  1. D R on April 29, 2021 at 12:33 am

    Thank you Mr. Ferrell for the work you put in to make these videos. I always thought that the future of humanity begins with renewable forms of energy and not fossil fuels. However the fact that the solar panels are not necessarily being recycled at the end of their useful lives and could have some drastic impact on the environment means that we need to find a way to make such technology recyclable at the end of life. Higher output of energy is not really an improvement if the environment is at risk. Humans and other life forms need clean water to drink and non polluted food supply. We humans need to keep improving the environment for our descendants and all life forms (except mosquitoes)…

  2. God of the Eternal light. on April 29, 2021 at 12:33 am

    Not good enough to phase out the power companies for home owners.

  3. Wes Johnston on April 29, 2021 at 12:34 am

    Generate energy with shadows? There is hope for the “dark sucker” theory. Google it!

  4. Mohammed Ftouni on April 29, 2021 at 12:35 am

    It is important to understand the Shockley-Queisser limit is not for a specific material. This limit is for the most optimum junction (a material with the perfect bandgap). Any other single-junction made of a material with a higher or lower bandgap has a less theoretical maximum efficiency. If the bandgap is higher than the optimum value, then the cell will generate higher voltage but it will be harder for photons to excite electrons and give them the energy needed to overcome the bandgap energy barrier. In other words higher voltage but less current and overall less output power. On the other hand, a single junction made of a material with lower bandgap energy would generate more current because now more photons have enough energy to excite electrons. However, it would generate less voltage; because any electron excited to high energy in the conduction band will lose some of its energy to settle lower energy just above the edge of the bandgap. And the energy lost as a phonon (vibration and heat). This settling down happens much faster than the process of extracting the electrons out of the cell. So this time we have less voltage, higher current but still less output power.
    So to overcome the maximum theoretical limit we have to use several junctions. So perovskites are not the solution. but tandems are the solution. whether silicon tandems or perovskites tandems or silicon-perovskites tandems.

  5. jason durst on April 29, 2021 at 12:35 am

    don’t led’s make current when exposed to light?

  6. Kiki Riski on April 29, 2021 at 12:36 am

    We just speedup trend solar panel like tesla e-car to reduce significant cons and boosted up efficiency.

    He how abiut using some magnify co collect more light with less solar panel

  7. SINGKEW LAW on April 29, 2021 at 12:37 am

    NOT SURE BUT IF SILICON CAN BE CRUSHED AND STILL KEEPS IT’S CAPACITY TO WORK IN A SOLAR CELL, WE COULD MANUFACTURE SOLAR PAINT AND SOLAR TARPS TO USE AS PERFECT DWELLINGS FOR COLD BUT SUNNY PLACES UP NORTH AND HAVE HEAT AND LIGHT 24/7 FOR PERHAPS SCIENTISTS RESEARCHING UP THERE??? JUST AN IDEA!!

  8. The Lucky Egg on April 29, 2021 at 12:37 am

    Insolight – Solar panels with record efficiency

    30% is not bad

  9. Jim Vanderveen on April 29, 2021 at 12:37 am

    Take a look at hybrid PV-thermal panels

  10. Dplik on April 29, 2021 at 12:38 am

    Great Video Matt, thank you much!

  11. myphonyaccount on April 29, 2021 at 12:38 am

    You didn’t explain how shadows generate power.

  12. Joao Gabriel Amado on April 29, 2021 at 12:39 am

    what about SolarCity / Tesla Solar Panels ?

  13. king shablooshki on April 29, 2021 at 12:40 am

    you can cook people like bacon on these things

  14. Mr blue Sky on April 29, 2021 at 12:40 am

    This is what I’ve been talking about we must combine not only frequency but vibration ! Meaning different band Frequency ,I just want to know why somebody didn’t somebody think of this before Now ? light is a Wave ! Hello ,Hello , Again!
    Good job don’t stop Shining

  15. GermanMythbuster on April 29, 2021 at 12:44 am

    I dont think "Shadow Solar" will become a thing, too little power harvested.
    For sensors yes and may be for neash ultra low power devices.

  16. Dr. Robotnik on April 29, 2021 at 12:46 am

    SEG sounds like some sort of optocoupler type of relationship but I definitely don’t claim to understand how the shadow portion generates electricity. Maybe it’s intended to be part of the layered concept to balance how a solar cell efficiency currently drops quickly under partial sun.

  17. Songo on April 29, 2021 at 12:47 am

    Generate electricity from passing shadows? Put that stuff under train tracks asap. Subways and airports …F..anywhere there is high traffic like Time Square. PR wonderland.

  18. N The One on April 29, 2021 at 12:48 am

    If the shadow tech is any better than current solar, you can just have a mechanical shade that adjusts to keep the 50% covering and you’ve got a product

  19. James LaRoche on April 29, 2021 at 12:49 am

    That was cool how you hinted at the idea of deriving power from shadows at the beginning of the video… my mind instantly started spinning and considering the possible options! I just found this channel and I already love it because of things like this. I’m not even 2 minutes into the video yet… My guess about the power from shadows idea would be that it has something to do with the temperature difference between an area that’s being shaded vs an adjacent area in full sunlight. Like using a large solar shade in Arizona or something to create a sharp temperature gradient and then running some sort of Stirling Engine like device off it? Idk but I’m super interested to find out!

  20. Marjorie Zapanta on April 29, 2021 at 12:56 am

    Very factual and informative! Thank you for generously sharing your thoughts Matt 🙏😊 Renewable energy, solar in particular is rapidly grows and patronize globally 👏Great innovation and research 👏😊👏

  21. Old Man Jim H on April 29, 2021 at 12:56 am

    Your low volume background sound is very distracting.

  22. Janis Möller on April 29, 2021 at 12:57 am

    Hey Matt, your videos are great: a good combination of informative and fun! Thank you for the great work!
    I think it is worth mentioning that hydrogen has due to the needed high pressurized storage a significantly worse efficacy than todays battery storage. As this is a physical limitation, this will limit hydrogen to specific applications. EVs with a battery will have lower costs per mile than ones powered by fuel cells, because of that.

  23. New Guy on April 29, 2021 at 12:58 am

    Wow. This video is one of the best wrapups of the various solar cell technologies.

  24. tony tran on April 29, 2021 at 1:04 am

    As a kid I was fearful of the Shadow Man….with this solar energy concept….Hey Shadow Man, where are you?

  25. Monu Kumar on April 29, 2021 at 1:06 am

    I have an idea to go beyond 50% efficiency with less than the price of mono crystalline, working on it. Hope this dream will come true.
    Hint – Rather than researching on solar cell material we have to redesign the optics, that can create a significant change in efficiency.

  26. Element Zero on April 29, 2021 at 1:10 am

    Good video

  27. KevinYSC on April 29, 2021 at 1:12 am

    What about quantum dot technology used for solar cells? Is that going anywhere?

  28. Kerry Smyth on April 29, 2021 at 1:14 am

    Is SurfShark a front for Chinese VPN spy services?

  29. Ray Purchase on April 29, 2021 at 1:15 am

    I’m looking forward to solar paint.
    Imagine painting an entire wall with special paint.
    It might be less efficient than panels, but the area could be enormous.

  30. MegaSnail1 on April 29, 2021 at 1:16 am

    Thank you for sharing the research. I look forward to sharing your video with others.

  31. prasad Kadu on April 29, 2021 at 1:17 am

    Future is solar .. soon in 100 years oil n gas will run out .. then its only solar wind n other green ones

  32. Sana Costa on April 29, 2021 at 1:19 am

    Here’s a list that helped me out.
    whinyl.com/tbspnls-guide/
    In the end, I went with #5.

    "3:59"

  33. id104335409 on April 29, 2021 at 1:19 am

    If you are harvesting power from the difference between light and shadow – Why not just combine that with regular solar panels and put the "shadow" part of the device on the back side of the panels encapsulated in black.

  34. Brian on April 29, 2021 at 1:20 am

    Multijunction is only really for lab bragging rights and space applications. The price isn’t viable for consumers, but that’d be great if the price would come down. And you never mentioned CdTe. It has a streamlined manufacturing process compared to Si, but the scale of Si levels that edge cost-wise. It’s one to watch for sure

  35. Gomi350z on April 29, 2021 at 1:21 am

    A good use for the shadow panels is roof shingles, shingles on a roof are overlapping. When the panels are played down the light absorbing side of one will cover the shadow side of the one above.

  36. NIHAL TEMP ACCOUNT on April 29, 2021 at 1:21 am

    The amount of research done and the presentation definitely deserves a sub. Luv ur content. Keep it up!

  37. D Wnright on April 29, 2021 at 1:21 am

    We had solar panels installed on our roof in Perth (Western Australia) in circa 1981. I am sure with multi layer applications we will hit commercially available close to 50% efficiency panels in 20 years or so.

  38. Mingkui Wang on April 29, 2021 at 1:22 am

    this is the biggest cheating in this century.

  39. AlmightyGTR on April 29, 2021 at 1:22 am

    Hey Matt, did you look into this new breakthrough? /watch?v=82Wi3DK9a9c. Looks interesting, not sure how expensive it is though. Upto 50% efficiency improvement over traditional setup.

  40. Natas Diablo on April 29, 2021 at 1:23 am

    Jaykee the Wolf: how come this fellow does not describe those factors limiting the efficiency of regular Si panels??
    Luis: don’t know.
    Jaykee the Wolf: start there. begin by dissipating heat away and keep things a cool 25 oC and see what happens.
    Luis: what if you kept same irradiance Btu/m2 and same temp??
    Jaykee the Wolf: like how many licks it will take to the center of a tootsy roll pop: the world may never know.
    Luis: ..

  41. Withnail1969 on April 29, 2021 at 1:24 am

    Perovskite is a dead end. It’s been researched for 10 years or more, and it’s come to nothing.

  42. Michael Felder on April 29, 2021 at 1:24 am

    Would thermal electric generator tech (TEG) be applicable if the heat generated behind and around the large surface areas in solar farms?
    Seems logical. 1st principles says it should be done.
    Might be fractional amounts on one TEG, but I know the nerds and techies will solve it when designing the CHEAP device, so it can be deployed by the millions in the solar farms.
    Thoughts

  43. Onedge70 Moparsuperbee on April 29, 2021 at 1:24 am

    Very cool!:)

  44. SINGKEW LAW on April 29, 2021 at 1:26 am

    ALONG WITH OTHER IDEAS I HAD ON THIS ISSUE. IMAGINE USING NIGHT VISION TECHNOLOGY TO REPLACE THAT GLASS AND USE LIGHT PLASTIC INSTEAD WITH NIGHT VISION INCORPORATED INTO IT. NOT ONLY WOULD WE BE ABLE TO MAGNIFY EXISTING LIGHT AT NIGHT BUT DURING DAY TIME A CELL COULD BE 100X MORE EFFICIENT…JUST A THOUGHT AGAIN!!

  45. Martin Andersson on April 29, 2021 at 1:27 am

    At around 0:50 you say that the average price of a solar cell is 0.13 USD per watt. Where did you get this from? According to my googling the average price measures in several dollars.

  46. Ab Renos on April 29, 2021 at 1:28 am

    cool, shadow generator is super interesting, delving into this technology will be lots of fun!!

  47. Paul Isham on April 29, 2021 at 1:28 am

    Surfshark sucks! No live support…chat room only.

  48. zxc hjk on April 29, 2021 at 1:29 am

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  49. Nick Schroeder on April 29, 2021 at 1:31 am

    1) By reflecting away 30% of ISR the albedo, which would not exist w/o the atmosphere, makes the earth cooler than it would be without the atmosphere like that reflective panel set on the dash. Remove the atmosphere/GHGs and the earth becomes much like the moon, a barren rock with a 0.1 albedo, 20% more kJ/h, hot^3 on the lit side, cold^3 on the dark. Nikolov, Kramm (U of AK) and UCLA Diviner mission all tacitly agree.

    2) the GHG up/down welling, “trapping”/”back” radiating/delaying/intercepting, 100 % efficient, perpetual warming loop requires "extra" energy which according to RGHE theory it gets from

    3) the terrestrial surface radiating that "extra" energy as a near ideal .95 emissivity black body which

    4) it cannot do because of the non-radiative heat transfer processes of the contiguous atmospheric molecules.

    1+2+3+4 = 0 Greenhouse Effect + 0 Greenhouse gas warming + 0 man caused climate change.

    All science backed up by experiment, the gold standard of classical science.
    https://www.linkedin.com/posts/nicholas-schroeder-55934820_climatechange-greenhouse-co2-activity-6749812735246254080-bc6K

    version 1.0 021321 matt

  50. alsmith20000 on April 29, 2021 at 1:32 am

    Not convinced by the shadow stuff.

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