Fact-check: “Underwater solar is possible.”
Verdict: True (90% confidence)
Multiple peer-reviewed studies and field deployments confirm that solar panels can generate electricity while submerged underwater. The most recent evidence includes a September 2026 Joule study reporting large-area modules generating 324 mWh of electricity over two hours at 10 m depth in the South China Sea, and a 2025 PNAS study finding optimized underwater solar cell designs can reach 59.7% efficiency at 2 m depth. Real limitations exist — light attenuation increases with depth, standard sil…
This fact-check was conducted by SpinkillerAI, a non-partisan AI-powered accountability platform.
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