There was an interesting op-ed in the Times today on the benefits of solar energy being harvested in space and transmitted to the earth for consumption. The International Space Station is seen as the starting point for this program as it could serve as a first test case and initial assembly yard for the harvesters. While I’m all in favour of a plan like this, and I would like to see some direct benefits for money spent on the ISS I do question the economics of it at the moment. When I hear things like “Government scientists have projected that the cost of electric power generation from such a system could be as low as 8 to 10 cents per kilowatt-hour” I start to worry…Government scientists? Could be as low as? These do not inspire confidence. I would rather focus on things that are already working, or are closer to competing with coal fired electricity generation than expend political capital on a program such as this.
Even if we get beyond this, how do we divide the clean erergy spoils amongst the contributors to the ISS? Is Russia going to be happy to help subsidize something that will erode their fossil fuel industry to the benefit of Europe and the US? What other interested parties might attempt to throw up roadblocks or make unreasonable demands? Not that these concerns can't be addressed, but I think the full range of issues needs to be put on the table from the start.
Show me the numbers!
Wednesday, July 23, 2008
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