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posted to alt.energy.homepower,alt.energy.renewable,alt.survival,rec.boats.cruising
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Grow alge, no tractor required.
"Dale Eastman" wrote in message link.net... wrote: Biodiesel is just replacing one type of emission with another - and it takes a lot of power to harvest/process the stuff. One square mile is 640 acres. One square mile is 5280 feet by 5280 feet. A tractor pulling a 30 foot wide disc plow will requi 5280/30 = 176 passes. That's 176 linear miles to plow the entire 640 acres. Now the next question is, how much horsepower (fuel consumed) to cover the 176 miles? And then there are the herbicide/pesticide/fertilizer/harvest passes also. Take it away Nick. |
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