Perovskite Solar Had a Landmark Year in 2025. Here Is What Actually Changed.

Oxford PV delivered the first commercial perovskite-silicon tandem cells to a U.S. solar farm. LONGi pushed conversion efficiency to 34.85 percent, breaking silicon's theoretical 30 percent ceiling. Researchers published a self-healing passivator that activates under heat and moisture. Hydrogel cooling tests in Thailand and Saudi Arabia delivered efficiency gains above 12 percent. The year perovskite solar moved from interesting lab material to something you can actually buy.