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The Navy's new Riverine Command Boat (RCB-X)  (Source:
Navy hopes to cut its fossil fuel consumption in half by 2020

It seems these days that many people/organizations are trying to go green. We have companies like Dell installing solar panels in parking lotsnumerous auto manufacturers are selling/developing full-electric and gasoline-electric hybrid vehicles; and even homeowners look to reduce costs by using fluorescent lighting and eco-friendly building materials.

Not to be left out, the U.S. Navy is showing its "green" side with a new 49-foot Riverine Command Boat (RCB-X). The boat is powered by a 50/50 mix of NATO F-76 fuel and algae-based biofuel.

Although there is no talk about an increase (or penalty) in fuel efficiency by using the the fuel, it appears to be more of a policy decision with regards to stepping up the use of alternative fuels in the Navy's fleet.

"Going green is about combat capability and assuring Navy's mobility," said Rear Adm. Philip Cullom, director of the Chief of Naval Operations Energy and Environmental Readiness Division. "It is not just about natural security; it also strengthens national security. By having reliable and abundant alternate sources of energy, we will no longer be held hostage by any one source of energy, such as petroleum.”

As with all new and experimental technology, the price to use such fuel in this prototype vehicle is astronomical. And when we say astronomical, we mean it -- the Marine Corps Times reports that the Navy bought 20,055 gallons of algae-based biodiesel at a jaw-dropping cost of $424 per gallon.

According to Wired, the Navy uses 80,000 barrels of oil per day to fuel its ships and wishes to cut that number in half within a decade through the use of biofuels and nuclear power.

"First and foremost, energy conservation extends tactical range of our forces while also preserving precious resources," Cullom added. "Our goal, as a Navy, is to be an 'early adopter' of new technologies that enhance national security in an environmentally sustainable way."

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RE: your cave is calling you
By JediJeb on 10/29/2010 2:43:26 PM , Rating: 1
Getting biofuel production on pace with petroleum also will be a major challenge. Skeptics wonder whether there’s enough arable land in the U.S. to grow the grasses and other plants needed to produce industrial levels of biofuels — and, moreover, what effect a glut of energy agriculture would have on the price of food.

Right now the government is paying farmers to not grow crops and leave millions of acres of farm land idle just to prevent a glut of food crops from bottoming out the price of food and bankrupting farmers. So there is plenty of land to start growing biofuel crops on. Also for algae you don't need good crop growing land, you can grow it anywhere you can get water, which can be either fresh or salt water depending on the type of algae. The best places are right next to power plants so you can use the waste CO2 from the powerplant(coal oil or natural gas) to feed the algae.

RE: your cave is calling you
By Firebat5 on 11/1/2010 10:32:02 PM , Rating: 2
"Right now the government is paying farmers to not grow crops and leave millions of acres of farm land idle just to prevent a glut of food crops from bottoming out the price of food and bankrupting farmers."

As an active farmer, I can tell you in my experience that this is not true. Years ago the federal dollars given to farmers did do this. However, currently, the federal "safety net" has switched focus to emphasize crop insurance subsidization. Don't get me wrong I HATE the idea of federal monies flowing to farmers, but currently, by and large, the government does not pay farmers to not raise crops (assuming no fraud).

"So there is plenty of land to start growing biofuel crops on."

My observation, is that all "crop growing land" is already employed in the raising food-- either crops or protein (read beef). In recent years, many poorer crop acres have been converted from beef production to crop production. There are several factors involved involved in this including higher commodity prices(read biofuels), better farming practices, and depressed protein prices.

I can also tell you that, in our area at least, biofuels compete directly with food for acres (read higher food prices). Simply put, biofuels have raised demand for our products, and the market has responded by transfering acres from food (including proteins, in a roundabout way) to biofuels.


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