Growing demand for energy from artificial intelligence applications and hyperscale data centers is spurring investment in space-based solar power, a technology that has been theoretically feasible for decades but is now attracting significant commercial interest and venture capital.
The concept involves positioning solar panels in orbit where they can receive continuous sunlight and transmitting the captured energy back to Earth via laser or microwave beams. Several emerging companies are moving toward commercialization timelines measured in years rather than decades. Virginia-based Overview Energy has announced plans to begin supplying power from space to electrical grids as early as January 2028 and signed an agreement earlier this year to provide up to 1 gigawatt of power to Meta, equivalent to a nuclear reactor’s output.
However, significant skepticism remains about the technology’s commercial viability. The company’s Meta agreement relies on technology that has not yet been tested in operational conditions, and even optimistic projections suggest space-based solar will not achieve cost competitiveness until 2040 at the earliest. Energy experts including Stanford physicist Amory Lovins have questioned whether the economics make sense given that established alternatives such as nuclear and geothermal power can produce electricity at lower costs.
Proponents argue space-based solar addresses a critical constraint facing terrestrial renewable energy: land availability. Utility-scale solar and wind installations require substantially more acreage per unit of power generated compared to conventional power plants, and rural communities have increasingly resisted large renewable projects. By eliminating terrestrial land requirements, space-based solar could theoretically meet a significant portion of new U.S. energy demand without additional ground-based construction.
Space-based systems would also offer dispatchability advantages, allowing operators to direct power to specific grids in real time as demand fluctuates, which proponents suggest could enhance energy security and grid flexibility.
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