The Space-Based Solar Power Market: From 56.9 Billion to a Trillion-Yuan Frontier

In the race toward a sustainable energy future, an ambitious frontier is rapidly taking shape beyond Earth's atmosphere. Space-based solar power (SBSP) - once the stuff of science fiction - is now emerging as one of the most transformative opportunities in the global energy landscape. According to a research report by Central China Securities, the global space-based solar power market reached approximately 56.9 billion RMB in 2026 and is projected to skyrocket to 1,099.8 billion RMB by 2035 - a nearly twenty-fold expansion within just a decade. This article unpacks the technology, drivers, applications, and competitive dynamics behind this astronomical growth.

Space-based solar power (SBSP) is the use of solar photovoltaic technologies to generate electric energy from solar rays captured by photovoltaic devices such as satellites (in orbit) or spacecraft (in space). Thus, the key SBSP application envisions large scale solar arrays located in geostationary orbit about Earth, that would continually capture and deliver unlimited amounts of solar energy (at a rate of approximately 1,360 watts/m2) wherever it is located on Earth by means of microwave (or laser) transmission systems to receive stations located on the ground.

This idea originated with Peter Glaser in the United States in 1968, who proposed placing giant solar satellites into geostationary orbits (approximately 36,000 km above the surface of the Earth) so that they would receive continuous access to sunlight - free from periods of darkness (night), as well as clouds and atmospheric interference (attenuation). Utilizing SBSP would provide the globe with non-stop, extremely reliable, and weather-independent electricity when compared to terrestrial (ground) photovoltaic systems, which are impacted by night, clouds and atmospheric attenuation.

The growth trajectory of the SBSP market is nothing short of breathtaking. In 2026, global installed capacity stands at approximately 0.18 gigawatts (GW) with a market value of about 56.9 billion RMB. By 2035, capacity is expected to exceed 90 GW - a 500-fold increase in less than a decade. This expansion is driven almost entirely by two major waves: short-term demand from communication satellite constellations, and long-term demand from space-based data centers and AI compute infrastructure.

Short-Term: The Low-Earth Orbit Satellite Race

The global low-Earth orbit (LEO) satellite market is entering a "first-come, first-served" frenzy for orbital slots. China alone has applied to the International Telecommunication Union (ITU) for over 200,000 orbital slots across 14 constellations, all of which require completion by 2039. With near-Earth orbit capacity estimated at only about 60,000 satellites, competition is intensifying rapidly. Each new-generation communication or compute satellite now demands 25 to 100 kilowatts of power - five to twenty times more than traditional satellites, dramatically amplifying the demand for onboard solar power systems.

Long-Term: The AI Compute Frontier

Perhaps the most exciting driver lies beyond satellite communications. SpaceX has applied to the U.S. Federal Communications Commission for permission to deploy one million AI-capable orbital data-center satellites, each requiring 100 kilowatts of power - twenty times that of existing Starlink satellites. Google, Amazon, and other tech giants are simultaneously advancing their own space-based compute initiatives.

This shift is not coincidental. Ground-based AI data centers face crippling constraints: electricity shortages, cooling bottlenecks, and land scarcity. Space offers an elegant solution - near-limitless solar energy (with three to five times the generation efficiency of terrestrial PV) and an ultra-cold ambient environment that drastically reduces cooling requirements. As one industry report notes, this dynamic has positioned SBSP as the "energy heart" of an emerging orbital AI ecosystem.

The SBSP ecosystem is characterized by high upstream barriers and rapidly evolving downstream competition. The upstream - specialty materials (germanium substrates, radiation-hardened encapsulants), epitaxy equipment (MOCVD), and high-purity compounds - remains concentrated among a handful of global players including Spectrolab, SolAero, AXT, and IQE.

The midstream battery and module manufacturing segment is witnessing intense activity. Legacy leaders include Azur Space, Flexell Space, and China's CETC, alongside emerging private-sector giants such as GCL Tech - identified by HSBC as the largest producer of next-generation space solar cells - and Zhonghuan New Energy, which recently partnered with Heimian Optoelectronics to develop perovskite/silicon tandem cells for space applications.

Downstream, demand is driven by satellite manufacturers, aerospace primes, defense agencies, and commercial space infrastructure developers. North America currently accounts for over 40% of the global SBSP market share, but China is rapidly closing the gap with aggressive national programs including the "Xingshu Plan" for a thousand-satellite orbital AI compute network.

Even with exciting predictions, there are still large obstacles to overcome. Launch costs are coming down due to reusable rockets but they need to continue to decrease in order to economically justify gigawatt level systems in orbit. Power transmitted from these systems need to be done with as much or better than the current 15-20% range of efficiency, as it would not compete otherwise in the market. Regulatory issues, such as the ability to coordinate between satellites, manage debris in orbit, and allocate frequency to beam power will require a global effort.

But the trends are clear; we are moving from research to building out our global solar-based power infrastructure. The US, China, Europe, and private companies (SpaceX, etc.) are investing billions into orbital energy generation systems. The conclusion that can be drawn is that we will have a trillion yuan market for solar-based power as long as we can get all of the logistical and regulatory problems worked out. For those who want to participate or be involved in this new industry, now is the time to start understanding and becoming involved in this transformative industry. It may be the case that in the future the solar panels we are using to supplement our energy needs will not be sitting on our roofs, but rather orbiting silently in space (approximately 36,000 km above the earth) providing clean and reliable electricity to the world that is craving this source of sustainable energy.