Japan discusses Luna Ring project for lunar solar power
Updated
Updated · russpain.com · May 1
Japan discusses Luna Ring project for lunar solar power
6 articles · Updated · russpain.com · May 1
The concept envisions an 11,000km band of solar panels around the Moon’s equator, with power sent to Earth by microwaves or lasers and converted at rectenna receiving stations.
Backers say the system could generate up to 13,000 terawatts of continuous electricity, but major hurdles include beam accuracy, transmission losses, space debris protection, lunar construction and cost.
The idea, revived as Japan seeks safer low-carbon energy after Fukushima, remains conceptual and could also support hydrogen production using lunar-made materials and robot assembly.
Could AI’s massive energy demand force humanity to build a power station on the Moon?
Is the Luna Ring's trillion-dollar cost a bigger hurdle than beaming power safely from the Moon?
What happens when one nation can switch off an energy beam from the Moon to Earth?
Harnessing Moon-Based Solar Energy: The LUNA RING Project’s Path to Japan’s Clean Energy Future
Overview
The LUNA RING project, conceived by Shimizu Corporation, aims to harness continuous solar energy from the Moon to reduce Japan's heavy reliance on imported fossil fuels, which surged after the 2011 Fukushima disaster caused a sharp drop in nuclear power. This dependence threatens Japan's energy security, economic stability, and climate goals. While the project promises clean, abundant energy, it faces major technical challenges, including harsh lunar conditions, inefficient wireless power transmission, and enormous costs. These hurdles fuel expert skepticism and highlight the need for international cooperation and new space governance frameworks. Despite difficulties, global interest in space-based solar power is growing, driven by its transformative potential.