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Best practices for measuring the performance and stability of indoor photovoltaic devices

Nature Energy, Published online: 18 August 2026; doi:10.1038/s41560-026-02101-x

A major challenge for indoor photovoltaics is the absence of harmonized testing protocols, standards, and shared performance benchmarks. This Consensus Statement outlines recommended practices for testing and reporting device performance, power, efficiency and stability.

Ubiquitous Kelvin–Helmholtz instabilities driving plasma mixing on the Sun

Nature, Published online: 05 August 2026; doi:10.1038/s41586-026-10871-3

High-spatial-resolution observations of the solar photosphere reveal a far more complex and dynamic solar scene than previously observed and show that ubiquitous Kelvin–Helmholtz instabilities drive plasma mixing on the Sun.
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