Perovskite-silicon tandem solar passes 33% conversion efficiency in lab [Sept 2025]

Another incremental but meaningful record: a perovskite-silicon tandem hit ~33.1% efficiency in the lab last week. If commercialized, tandems could push module-level efficiency beyond today’s silicon limits, cutting area, balance-of-system costs, and potentially easing land-use pressure. What’s the most realistic path to durability (ion migration, moisture, UV) that gets perovskite-silicon into mainstream utility projects by 2027–2028?