Why This Solar Breakthrough Matters More Than Perovskite

The Solar Underdog That Could Rival Perovskite. Go to https://surfshark.com/undecided or use code UNDECIDED at checkout to get 4 extra months of Surfshark VPN! Perovskite solar cells are smashing efficiency records and starting to hit the market, but what if the real future of solar is a material you’ve probably never heard of? It’s called kesterite, and new research suggests it could match perovskites’ efficiency without any toxic lead in the stack. That could mean even cheaper, cleaner, and more efficient solar panels for your home down the road. Scientists just simulated a version of kesterite that could reach a 33.56% efficiency, brushing up against the theoretical limit for solar cells. The kicker? Kesterite is durable, where perovskite struggles to survive the great outdoors. With new kesterite efficiency records set this past year… could this underdog race ahead of perovskite and reshape the future of solar? Watch The Most Controversial Battery at CES 2026 https://youtu.be/Kt4c0o_3eyY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ Video script and citations: https://undecidedmf.com/the-solar-underdog-that-could-rival-perovskite/ Get my achieve energy security with solar guide: https://link.undecidedmf.com/solar-guide Follow-up podcast: Video version - https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA Audio version - http://bit.ly/stilltbdfm Join the Undecided Discord server: https://link.undecidedmf.com/discord 👋 Support Undecided on Patreon! https://www.patreon.com/mattferrell ⚙️ Gear & Products I Like https://undecidedmf.com/shop/ Visit my Energysage Portal (US): Research solar panels, heat pumps, and more to get quotes for free! https://undecided.link/energysage For a curated solar buying experience (Canada) EnergyPal's free personalized quotes: https://energypal.com/undecided Tesla Referral Code: Get 1,000 free supercharging miles or a discount on Tesla Solar & Powerwalls https://ts.la/matthew84515 👉 Follow Me Mastodon https://mastodon.social/@mattferrell X https://twitter.com/mattferrell https://twitter.com/undecidedMF Instagram https://www.instagram.com/mattferrell https://www.instagram.com/undecidedmf Facebook https://www.facebook.com/undecidedMF/ Website https://undecidedmf.com 📺 YouTube Tools I Recommend Audio file(s) provided by Epidemic Sound http://bit.ly/UndecidedEpidemic TubeBuddy https://www.tubebuddy.com/undecided VidIQ https://vidiq.com/undecided I may earn a small commission for my endorsement or recommendation to products or services linked above, but I wouldn't put them here if I didn't like them. Your purchase helps support the channel and the videos I produce. Thank you. Chapters 00:00 - Intro 02:14 - Kesterite Composition & Competency 04:10 - Kesterite's Model Efficiency 06:15 - Recombination 09:41 - Production Methods 10:59 - Conclusion