Is Orbital Solar Feasible for the Future?

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China's plan to launch a 2GW orbital solar project by 2050 raises concerns about its limited capacity compared to existing energy sources like the Three Gorges Dam. While the scientific and engineering challenges of orbital solar are deemed manageable, the high costs of launching and maintaining such systems are significant barriers. The feasibility of orbital solar is further complicated by security risks, including potential attacks on the power stations and concerns about creating a "death ray" effect from power transmission. Discussions highlight that while geostationary orbit may simplify power transmission, the large antenna sizes required pose additional challenges. Overall, the economic viability of orbital solar remains questionable compared to terrestrial solar solutions.
  • #31
Well personally I feel it highly depends upon the application. It may be an unnecessary application for here on Earth due to logistical issues, but what if you are one day going to create a space-based economy and you need to transmit power from one location to another?

Also, if the satellite can orbit the Earth multiple times a day and it charges up, it can even power a location at night.
 
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  • #32
BWV said:
geosynchronous orbit

CCatalyst said:
the satellite can orbit the Earth multiple times a day
Got to pick one or the other.
 
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  • #33
CCatalyst said:
and it charges up
A satellite based battery could introduce the need for some drastic new technology. The "charging up" would be best carried out on Earth but multiple orbiting power stations would eliminate the eclipse problem and remove the distance problem with a site in geosynchronous orbit.

From pretty much every angle, the orbiting power station throws up problem after problem.
 

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