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Pentagon Urges Space-Based Solar Power
eldavojohn writes "The Pentagon issued a report indicating that space-based solar power 'has the potential to help the United States stave off climate change and avoid future conflicts over oil by harnessing the Sun's power to provide an essentially inexhaustible supply of clean energy.' The report, from the Pentagon's National Security Space Office, calls for funding the development of space-based solar power culminating in 'a platform in geosynchronous orbit bigger than the international space station and capable of beaming 5-10 megawatts of power to a receiving station on the ground.' The Pentagon's interest in such an effort stems from the need to acquire energy on the battlefield, which today often comes at a painful premium."
That's an excellent point.
... a basket owned by and controlled by the DoD.
Worse yet is something that didn't make it past the editing in my submission of this summary. I read around and it seems like a lot of people think that this budget for such an expensive extensive project would almost certainly be cut from any other alternative energy sources.
In my opinion, our defense spending is already through the roof, this could be a political move to put something powerful in space and get the money from alternative energy spending (or at least under the guises of it). Maybe my tin foil hat is on too tight but a lot of news sources were saying that this could drain and/or draw attention away from other just as valid efforts at escaping the grip of fossil fuels.
Like everyone's been saying, our solution to these problems of dependence on the middle east & emissions is going to be a host of different solutions specific to different areas. I fear that the funding and attention will go into this and we'll have all our eggs in one basket
My work here is dung.
Or they could direct the megawatt beam at things other then a power collector.....
It takes the military to come up with a REALLY stupid idea. We can develop better solar cells, or improve battery technology, or maybe put up more wind energy farms, but why not put the solar cells in space and beam the power down in focused beams with some sort of Buck Rogers scheme that has never been developed or tested and would probably, if it could work at all and not just be a cover for spending for a space weapons platform, be much more vulnerable to attack by potential adversary countries with access to space, e.g. the Russians or the Chinese. God save us from these morons.
Yes, this initial version doesn't generate a lot of power, but if the military were to actually go through with this plan, it would absorb the initial R&D costs to take orbital solar platforms from scribbles on the back of a cocktail napkin to a real, working prototype. Once the process is proven, then it would be a much smaller economic risk for the private sector to transition the technology to the civilian sector and expand capacity. Very few entities in the United States, let alone the globe, have deep enough pockets to absorb the immense financial risk and ready access to the limited pools of specialized aerospace engineering talent required as the United States military. Personally, I would rather have the military spending money on technology that has civilian benefits instead of buying yet another set of nuclear weapons.
Considering the military budget comes out of the pockets of us commercial and civilian users, it's hardly a "free ride."
It is impossible to switch to Ethanol. The Ethanol industry's own data (each gallon of Ethanol produced yields an excess of 17,000 BTUs. 125,000 BTU/gal Gasoline / 17,000 BTU/gal excess = 7) shows that it takes SEVEN gallons of Ethanol to replace ONE gallon of Gasoline. The average yield of Corn is 135 Bu/acre and each Bushel of Corn yields 2.68 Gal of Ethanol. To replace Gasoline with Ethanol made from Corn grown in the US would require 44 Million MORE acres of agricultural land than the TOTAL acres of agricultural land available in the US.
Add to that the fact that it is limited to one crop per growing season, is a mono-culture highly susceptible to natural or artificial pathogens, drought, floods and hail and you have what is probably the least desirable energy source of all.
What is pushing the Ethanol industry? Corn ethanol subsidies totaled $7.0 billion in 2006 for 4.9 billion gallons of ethanol. That's $1.45 per gallon of ethanol (and $2.21 per gal of gas replaced). There are 17 NEW Ethanol plants being built in Nebraska because of those subsidies.
What makes the WHOLE THING A TOTAL DISASTER is that Ethanol is NOT the path or even a bridge to energy independence. It is merely a drain on the Federal treasury driven by greed and corruption.
Running with Linux for over 20 years!