Betaray is a spherical glass solar energy generator developed by German architect André Broessel of Rawlemon Studios. Prototype uses a transparent ball lens and dual-axis tracking device to concentrate ambient light, including sunlight, moonlight and cloudlight, up to 10,000× intensity. Impressive early tests suggest up to 35% higher efficiency than conventional dual-axis photovoltaic designs and ability to operate under diffuse or cloudy conditions.
A Despatch report states Betaray harvests up to 70% more solar energy than flat solar panels. Sphere design allows power generation in low light conditions, enabling effective energy capture even on overcast days or at night using moonlight .
Stanford analysis explains sphere concentrates diffused ambient light into a focused beam onto a compact solar cell array, reducing silicon cell area to around 25% of typical panels while maintaining transparency and scalability.
Recent professional commentary reinforces Betaray potential as revolutionary clean-energy technology. A LinkedIn post notes capturing cloudlight or moonlight without direct sunlight, asserting 35% efficiency gain versus conventional panels using minimalist materials and aesthetic integration into architecture.
Betaray concept won finalist recognition at World Technology Network Award 2013. Designers envision use in hybrid buildings, electric vehicle stations, water heating and architectural integration with nearly 99% transparency and weatherproof design.
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