The idea of using a satellite system to produce solar energy from space is not a new concept. Many have thought about it and ultimately concluded that it was not feasible at present. John Mankins is heading a project for such a satellite which is being called "Solar Power Satellite via Arbitrarily Large PHased Array" (SPS-ALPHA). The idea incorporates several small relatively light weight pieces that reduce the cost of manufacturing. The system concept works by integrating several curved mirrors on a satellite to direct the sun's energy to photovoltaic cells and then sends a radio frequency energy to earth (and space stations as well). It is projected that the system will be able to generate thousands of megawatts. This concept is still in the design phase and the next step is to create a working prototype. So far, this is the closest and most promising idea for satellite solar power.
I have often wondered about the possibility of satellites being used for energy collection. This would be a significant solution to eliminating the need for solar fields that take up space, or wind farms that are noisy and disturb wildlife. One of my first questions is in regards to solar storms. They occur all the time and large ones can even temporarily disrupt our power grid. Would solar storms damage the collection satellites (overload) or increase the energy output? Or is there no effect? I would also question how easy it would be to maintain and fix them. Overall, I am excited to see what happens with the project. This has the potential to solve energy needs on a global scale.
http://www.msnbc.msn.com/id/46993879/ns/technology_and_science-space/#.T4SC5XnhdlA
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