Pentagon considering study on space-based solar power

The Pentagon's National Security Space Office (NSSO) may begin a study in the near future on the possibility of using satellites to collect solar energy for use on Earth, according to Defense Department officials. The military's work in this area also could aid development of a system that could provide energy to non-military users as well, according to Lt. Col. Michael Hornitschek, chief of rated force policy on the Air Force staff at the Pentagon. Hornitschek, who has been exploring the concept of space-based solar power in his spare time, recently briefed the NSSO on the concept of space-based solar power, and stimulated interest in conducting a formal study, according to Lt. Col. M.V. 'Coyote' Smith, chief of future concepts at the NSSO. Hornitschek would lead work on the study on behalf of the NSSO if the NSSO elects to pursue it, and he said he hopes that a system could be deployed in roughly 20 years.

John Mankins, president of the Space Solar Power Association in Washington, said space-based solar power could offer a massive improvement over terrestrial solar collection devices because constant exposure to the sun avoids the nighttime periods where terrestrial systems cannot collect solar energy. The ability to constantly gather solar energy would allow a space-based system to avoid safety concerns to other satellites or people on the ground by constantly transmitting energy to Earth at a level that is high enough to be useful but low enough so as not to cause any damage, said Mankins, a former NASA official who previously served as manager of advanced concept studies at NASA headquarters.

Jeff Kueter, president of the Marshall Institute, a Washington think tank, said it is too early to determine if space-based solar power is viable, but said that if the concept is successful, it could be a potential 'game changer' for energy use. The concept could find broad bipartisan support as it could meet the desires both of conservatives seeking to end dependence on foreign energy sources, as well as liberals who are looking for an environmentally friendly source of energy, Kueter said. The concept of space-based solar power might appear to threaten traditional energy industries. However, the rapidly increasing demands for energy and diminishing supply of natural resources means that traditional energy companies may need to find new ways of doing business in the future, and they could likely find a way to be a part of the space-based solar power effort through ways like contributing expertise in areas like energy distribution, he said.

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