Coffee – the dark and invigorating brew that fuels Americans every morning – could soon be providing energy to far more than just our bodies and minds. Engineers at the University of Nevada have proven that used coffee grounds can be effectively used as a source for both biodiesel and solid fuel pellets.
Details of their findings can be found here [PDF].
Every 1,000,000 pounds of coffee grounds can produce just slightly over 13,900 gallons of biodiesel and 847,600 lbs of solid fuel pellets. Since Starbucks generates an estimated 210,000,000 – yes, 210 million – pounds of spent coffee grounds per year in the US, the researchers at the University of Nevada believe that Starbucks could amount to 2,920,000 gallons of biodiesel and 89,000 tons of fuel pellets. This would represent just slightly less than 2.00% (1.986%) of the estimated 147,000,000,000 gallons of diesel fuel required by the US and Europe annually. Now that’s some go juice!
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Tags: Biofuel | Coffee | Economy | Energy Independence | Food & Drink | Politics | Society | Starbucks | Technology | The Environment