Revolutionizing Energy: The Rise of Space-Based Solar Power
In recent months, the concept of space-based solar power (SBSP) has gained significant traction, primarily driven by advancements in technology and funding within the aerospace and defense sectors. With the potential to revolutionize energy supply, SBSP aims to harness solar energy in orbit and beam it back to Earth or to other satellites, thus addressing energy needs even in shadow conditions. This article explores the latest developments, particularly focusing on startup initiatives, feasibility studies, and emerging technologies.
Recent Developments in SBSP
Mantis Space: A New Contender in SBSP
On March 12, 2026, Mantis Space, a New Mexico-based startup, announced the closure of a $10 million oversubscribed seed funding round. This influx of capital marks a significant step for the company as it aims to develop laser-based solar power satellites positioned in Medium Earth Orbit (MEO). These satellites will feature large solar arrays capable of beaming power using high-precision lasers, which are finely tuned to match the absorption peaks of solar cells, thereby achieving efficiency rates that surpass direct sunlight by 20-30%.
The primary objective of Mantis Space is to alleviate the energy challenges faced by satellites during their eclipse periods—typically one-third of their operational life. By deploying this innovative technology, satellite operators can reduce their reliance on onboard battery systems, effectively doubling or even tripling the utilization of their missions. The first payload is expected to launch in early 2028, featuring four laser beams per satellite, which will enhance power delivery capabilities.
UK Feasibility Studies Highlight Potential
In parallel, a UK government report released in February 2026 has underscored the technical feasibility of small-scale SBSP systems for deployment in the early 2030s. This report builds on earlier studies from 2021, confirming that while the physics of wireless power transmission has been validated, significant challenges remain, such as launch costs and in-space assembly.
The report indicates that SBSP systems could achieve capacity factors ranging from 81% to 95%, significantly outpacing terrestrial renewable energy sources—solar energy typically offers 11-25% capacity, while offshore wind achieves around 48-50%. This positions SBSP as a competitive alternative in the energy landscape of the future.
Global Context and Future Outlook
As countries ramp up their investment in SBSP technologies, China is reportedly planning to deploy a 1-km-wide solar panel by 2028. Meanwhile, the United States, Europe, and Japan are engaged in early-stage research and development, aiming to explore the potential applications of SBSP in both civilian and military sectors. While no specific defense-related SBSP initiatives have been reported recently, Mantis Space’s technology is informed by expertise from the Sandia National Laboratories, particularly in military-grade laser systems.
Limitations and Challenges Ahead
Despite the promise of space-based solar power, the industry faces hurdles. Most current developments are focused on space-to-space power beaming rather than Earth-based transmission, which remains largely pre-commercial. The lack of gigawatt-scale demonstrations further complicates the path toward widespread adoption. As technologies evolve, addressing these limitations will be crucial for the future of SBSP.
The Role of Advanced Technologies in SBSP
Innovations in sensor and control systems are pivotal for the success of SBSP initiatives. For instance, high-performance MEMS accelerometers are essential for stability and precision in satellite navigation systems. Additionally, the ZQXXSGDSS System, which features high-performance single-tube PIN quadrant detectors, plays a critical role in precise laser beam positioning and tracking, ensuring efficient power delivery from satellites to their targets.
Furthermore, advanced sensor modules, like the Advanced Sensor Module that integrates a 9-DOF MEMS IMU, enhance motion sensing and stabilization of satellite platforms. These technologies collectively contribute to the overall efficiency and reliability of SBSP systems, paving the way for their potential deployment in the near future.
Conclusion
As the landscape of energy generation evolves, space-based solar power emerges as a pioneering solution with the capability to meet the energy demands of the future. With startups like Mantis Space leading the charge and studies confirming the feasibility of SBSP technologies, the aerospace and defense sectors are on the brink of a transformative shift. As industries invest in the necessary technology and infrastructure, the next decade may see SBSP transitioning from concept to reality, fundamentally reshaping how we approach energy in both space and on Earth.
References
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Orbital Solar Power Provider Startup Mantis Space Announces Funds (aviationweek.com) - 3/13/2026
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Mantis Space exits stealth with $10 million for orbital power delivery (pv-magazine-usa.com) - 3/12/2026 Mantis Space closed a $10 million seed round to develop laser-based solar power transmission for satellites operating in the shadow of the Earth. March 12, …
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Mantis Space Emerges from Stealth with $10M Seed (payloadspace.com) - 3/12/2026 New Mexico-based Mantis Space formally exited stealth today with the announcement of $10M in seed financing.
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NASA to Cover Upcoming US Spacewalks 94, 95 Outside Space … (www.nasa.gov) - 3/12/2026 On March 18, NASA astronauts Jessica Meir and Chris Williams will conduct U.S. spacewalk 94, exiting the orbiting laboratory’s Quest airlock to …
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Solar Power From Space: How Close Is It to Reality? - Impakter (impakter.com) - 3/11/2026 An orbital solar farm could provide clean, firm power when the wind isn’t blowing and the sun isn’t shining. byAriq Haidar · March 11, 2026.
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Enormous solar power array seen from orbit photo of the … - Space (www.space.com) - 3/5/2026 Enormous solar power array seen from orbit | Space photo of the day for March 5, 2026. News. By Ian Stokes published March 5, 2026. This stunning satellite …
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Out of this world: Is space-based solar power the next big thing? (energyadvicehub.org) - 2/25/2026 Published in February 2026, “Feasibility of small-scale space based solar power … The next round is expected to open on 30 March 2026, giving …
