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2. Space solar power is gaining momentum as a futuristic idea to beam solar power down to Earth.
3. Startups like Space Solar and Reflect Orbital are working on satellite-based solar power technology to sell sunlight to solar farms after dark.
The concept of beaming solar power down to Earth from space is becoming more feasible, despite financial and technological challenges. This advancement poses a potential threat to fossil fuel stakeholders as space solar development gains momentum. The idea of wirelessly transmitting solar power 24/7, regardless of weather conditions, is attractive due to its potential to reduce land use issues associated with ground-based solar projects.
Numerous startups, such as Space Solar and Reflect Orbital, are actively working on space solar power technology. Reflect Orbital plans to launch a network of mirror-equipped satellites into orbit to reflect sunlight to specific targets on Earth, providing additional sunshine for solar farms before dawn or after dark. Additionally, Japan’s OHISAMA initiative is developing a satellite to beam solar power down to Earth from a 250-mile altitude.
NASA has experience with in-space solar technology but has not prioritized space solar power for investment. However, they are exploring related technologies such as in-space servicing, assembly, and manufacturing. NASA recently launched a lightweight solar sail for propulsion using sunlight pressure, which could inspire new applications of solar technology. Overall, the space solar industry is making strides towards scaling up orbiting solar arrays and addressing sustainability and space debris challenges.