NASA's Next Great Observatory Could Detect Alien Solar Power Systems

This study investigates the detectability of silicon-based photovoltaics as technosignatures on exoplanets and measures the global energy potential of solar panels. Covering just 2.4% of Earth's land may meet global energy demands in 2022 with an average solar power density of 5.4 W/m2, while covering 23% would far surpass human needs.