Solar PV with more than 40% efficiency is now achievable.

Perovskite and silicon appear to be the dream combo for improved efficiency in solar PV technology, with the potential to more than double the performance of anything you may have on your roof today. If you live in America, you can now buy perovskite/ silicon solar panels manufactured in Europe. So what is Perovskite, how does it work with silicon, and when will you be installing 43% efficient panels for your home?

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Link to Chinese research paper

Oxford PV website

Explanation of the Czochralksi Process

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[jedics]

30% efficiency means 50% more energy than my 20% efficiency panels which means a huge improvement to my quality of life in winter :)

[TomMcinerney-gb]

Only a few years ago, perovskite PV were a lab curiosity. This is great news, thanks!

[steverichmond]

Thanks for making sense of many things .... in a light and humorous way

[justin_time]

40% efficiency solar cells would definitely make solar electric vehicles much more viable for lots of folks out there. Right now it seems that the typical range gain from adding solar cells to a vehicle is about 10-20 miles per day, but doubling current efficiency would bring it up to 20-40 miles per day, which I believe would cover most people's commutes. Very hope inspiring tech. I'm glad to hear that this one actually came to fruition. I hope the technology continues to improve too.

[EcoHouseThailand]

There seems to be a lot of talk about panel efficiency but for most people the priority is price per Watt. A cheaper less efficient panel makes more sense than a more expensive more efficient one. If roof space is the limiting factor then Watt/m2 is the key factor. Rarely discussed in the voltage of panels, it is easy to be over voltage on your inverter before you reach the max Wattage. I have been off-grid with Solar for 6 years - videos of my setup on my channel

[mellissadalby]

I am looking forward to longevitiy data on these new PV cells that make use of Perovskite as they go through their service life.

[markuslang]

Got it right just after 13 tries - got me. Thank you for your great work

[bloepje]

Currently the price per panel is much lower than the price per panel mounting equipment.
You pay more for 2 aluminium profiles that you have to screw on your panel to connect it to your roof.
So needing less panels is always better. Because the mounting is extremely expensive, not the panels.

[whodoctor]

Just discovered your content. I love it. Great work!

[peterjol]

My 4kw system was also the maximum amount of panels that would fit on my roof, in ten years it's more than paid for itself ..even though I recently did have to get a new inverter (which wasn't cheap), I really don't understand why people are still being slow to have systems installed. It makes damn good sense even for those who only interested IN money and investments and don't care about the planet or global and even more so if they can increase the panels, efficiency by so much more.

[andrewperkin]

Great video. Wish I had you as a teacher at school. If it reaches the market and effeciency claims are correct, this is hugely exciting.

[manickn]

Good stuff. I did a course on solar some years ago and perovskites were the most efficient.

[NameofaYouTubeChannel]

This is fantastic news! Thanks for keeping us up to date on all the latest green tech Dave!

[liamthompson]

Amazing to see research actually get to market. So many damp squibs.

[SchwuppSchwupp]

Thanks for providing the links to the research papers.

[fixeroftheinternet]

Great show Dave. Keep up tbe great work

[mahbubhossainsamm]

I planning to install solar panel in October’2025. 40% efficiency means not only zero energy bills but also a way of earning. 😎💵

[rofekahmed]

That is so cool I hope the green public get to use it as soon as possible

[jesseestrada]

You're excellent use of the a banger at the beginning is you farming view time. I know this because I had to watch 2 minutes twice cuz I was laughing so hard.

[FuIhat]

I hope to see the day when solar panels capture infrared light that change would be amazing, I'm sure someone is working on it