TL;DR
A crystal called perovskite, which can be coated onto glass or stacked on top of ordinary silicon solar cells, just set a world record at a size that starts to look like a real product. Engineers at UNSW Sydney and the Chinese manufacturer UtmoLight turned 23.5% of the sunlight striking a 30-by-30-centimeter panel, about the footprint of a pizza box, into electricity, a certified result announced Oct. 7, 2026. For households, the point is simple: a perovskite layer on top of silicon squeezes more power out of the same roof or the same field, and the companies building these panels say the aim is a lower cost for every unit of electricity, the number that ends up on a power bill. Layered perovskite-silicon panels are already coming off a 40-megawatt line in California and are signed up for multi-gigawatt production in India, with high-volume factories aiming for 2028. Our odds that layered panels reach high-volume production: chance it works 90%, likely by 2028. For the full odds and the timeline of breakthroughs on the road to cheaper solar power, subscribe.
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