
Perovskite Tandem Solar: Breaking the 30% Efficiency Limit #351
From Clean Power Hour by Tim Montague, John Weaver
May 21, 2026 · 47 min
About this episode
Joel Jean discusses the advancements in perovskite tandem solar technology and its potential to surpass the efficiency limits of silicon solar.
Silicon solar is approaching a hard physical efficiency ceiling at 30%. Perovskite tandem solar is the only proven path through it. Joel Jean, CEO of Swift Solar, explains the technology, what the Meyer Burger acquisition brings, and where tandems sit on the road to commercial scale. After seven decades, silicon solar is closing in on its physical efficiency limit, and no previous thin-film technology has been able to outperform it at competitive cost. Joel Jean, CEO and co-founder of Swift S...
People in this episode
Hosts: Tim Montague, John Weaver
Guest: Joel Jean
Topics covered
- solar energy
- efficiency
- technology
- business
- entrepreneurship
Keywords
- perovskite
- tandem solar
- efficiency limit
- silicon solar
- commercial scale
Mentioned in this episode
Organizations: Swift Solar, Meyer Burger
Products: Perovskite tandem solar, silicon solar
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