This technology is a solar power system that arranges multiple solar modules in a row between railway tracks. It uses receiver and transmitter coils wrapped around magnets on both sides of each module frame to wirelessly transfer power between adjacent modules and collect it in an energy storage unit.
Due to a shortage of land for solar power in Korea, there is a growing need to utilize existing spaces, and the idle space along approximately 3,800 km of railway tracks has emerged as a viable alternative. However, connecting modules on tracks with wires complicates disassembly and reassembly during repairs, posing safety risks to workers and causing train delays.
This technology uses magnetic coupling to connect modules and non-contact coils for power transfer, allowing for quick replacement by simply detaching a faulty module and attaching a new one. Modules are arranged on sleepers at alternating 10–15 degree angles, and the system includes sensors to monitor power generation by group and detect train vibrations. It can be applied to general railways, metropolitan subway lines, and rail yards, enabling large-scale power generation without land acquisition while reducing track maintenance time.
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