THE Pentagon may seem an unlikely promoter of alternative energy, but the biggest consumer of oil in the United States is looking at ways to become just that by partnering with private firms.
"When you don't use as much fuel, not only does it not cost you as much, but it also saves lives and injuries of those people who would have to deliver fuel through hostile territory," Assistant Army Secretary for Installations and the Environment Keith Eastin said.
Despite reducing its overall energy consumption by five per cent between 2005 and 2007, the US military spent $US13 billion ($18.46 billion) on energy in 2007 and requested an additional $US5 billion ($7.1 billion) due to a spike in oil prices.
The stakes are high, with the army estimating that reducing fuel consumption by just one per cent translates to about 6400 fewer soldiers in fuel convoys, a favourite target of insurgents in Iraq and Afghanistan.
All of this has added up to renewed urgency for the Pentagon to reduce its energy consumption. It is already federally mandated to obtain 25 per cent of its electricity from renewable sources by 2025.
Hundreds of small companies are expected to benefit from the military's green energy push, developing everything from alternative fuels to electric vehicles and efficient power generators.
One low tech initiative that has yielded surprisingly big results is spraying tents with a layer of hard foam. The insulation helps maintain steady temperatures inside the tents, reducing fuel consumption for heating or cooling by 50 per cent and saving an estimated 100,000 gallons of fuel or $US2 million ($2.84 million) per day.
"Each gallon you save is a ton of money that can be used elsewhere, either at the installation or fighting the war," Mr Eastin said. He estimated that a three-dollar gallon of fuel can end up costing up to $US28 ($40) on the battlefield after factoring in transportation and security costs.
With a staggering $US7.7 billion ($10.93 billion) spent last year on aircraft fuel alone, the US Air Force is the military's biggest energy consumer.
It is purchasing renewable energy, reducing aircraft loads and certifying its entire fleet to fly on a 50/50 synthetic fuel blend by 2011.
"Our efforts to drive a domestic source of synthetic fuels is a piece of the puzzle to be more secure as a nation and as the air force," said Kevin Billings, acting air force secretary for installations, environment and logistics.
(Pasted from Daily Telegraph)
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