Navy Taps Oceans for PowerApril 2010
By Grace V. Jean
As the Navy dives headlong into the challenge of meeting its alternative energy goals within the next decade, technologists are striving to help the service harness solar power trapped in ocean waters to generate electricity for its shore-side bases.
Facilities ashore consume a quarter of the Navy’s annual energy resources. Most are powered by the U.S. electrical grid, which relies on fossil fuel generators. In addition to being tied to the turbulent prices of foreign oil, the grid infrastructure is vulnerable to hacker attacks, says R. James Woolsey, senior advisor at Vantage Point and former co-chair of the Defense Science Board’s study on energy and defense.
Naval installations are shifting to grids powered by renewable energy sources, says Rear Adm. Philip Cullom, director of the Navy’s fleet readiness division. Within the next 10 years, officials plan to generate half of the service’s shore-based installation energy requirements from alternative sources.
“This is where renewables make a huge difference,” says Cullom, who is leading the Navy’s task force on energy. Officials intend to boost the use of solar, wind, ocean and geothermal energy sources on bases and in some cases also supply power to the U.S. grid.
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Algae to solve the Pentagon's jet fuel problemSuzanne Goldenberg, US environment correspondent
guardian.co.uk, Saturday 13 February 2010 16.04 GMT
The brains trust of the Pentagon says it is just months away from producing a jet fuel from algae for the same cost as its fossil-fuel equivalent.
The claim, which comes from the Defense Advanced Research Projects Agency (Darpa) that helped to develop the internet and satellite navigation systems, has taken industry insiders by surprise. A cheap, low-carbon fuel would not only help the US military, the nation's single largest consumer of energy, to wean itself off its oil addiction, but would also hold the promise of low-carbon driving and flying for all.
Darpa's research projects have already extracted oil from algal ponds at a cost of $2 per gallon. It is now on track to begin large-scale refining of that oil into jet fuel, at a cost of less than $3 a gallon, according to Barbara McQuiston, special assistant for energy at Darpa. That could turn a promising technology into a market-ready one. Researchers have cracked the problem of turning pond scum and seaweed into fuel, but finding a cost-effective method of mass production could be a game-changer. "Everyone is well aware that a lot of things were started in the military," McQuiston said.
The work is part of a broader Pentagon effort to reduce the military's thirst for oil, which runs at between 60 and 75 million barrels of oil a year. Much of that is used to keep the US Air Force in flight. Commercial airlines – such as Continental and Virgin Atlantic – have also been looking at the viability of an algae-based jet fuel,
http://www.guardian.co.uk/environment/2009/jun/28/china-algae-carbon-capture-plan">as has the Chinese government.
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http://www.guardian.co.uk/environment/2010/feb/13/algae-solve-pentagon-fuel-problemPreviously posted here:
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