Japan Advances OHISAMA Space-Based Solar Power Project for Earth Energy Transmission
Japan is progressing with the OHISAMA project to develop space-based solar power transmission, aiming for a demonstration in fiscal 2025. The initiative, involving Kyoto University and the Japan Aerospace Exploration Agency, seeks to capture solar energy in orbit and transmit it to Earth as microwaves, addressing limitations of terrestrial solar energy. Despite challenges in construction, efficiency, and safety, this project aligns with Japan's carbon neutrality goals by 2050.
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Japan is advancing the OHISAMA project, aiming to transmit solar power from space to Earth for commercial use. The initiative involves a partnership among industry, universities, and government, targeting a key demonstration in fiscal 2025.
A satellite equipped with solar panels will collect sunlight in orbit, convert it to microwaves, and send it to a receiving station on Earth, where it will be converted back to electricity. Led by Professor Naoki Shinohara of Kyoto University, the project also involves the Japan Aerospace Exploration Agency.
Challenges include constructing a large solar array in space and ensuring safe energy transmission. The government views this technology as vital for achieving carbon neutrality by 2050.
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