Producing ethanol using switchgrass produces more than 5 times as much energy as it takes to grow it, far more than corn based ethanol.

Question

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Switchgrass is a more efficient source for ethanol production than corn-based ethanol. Research has shown that producing ethanol using switchgrass produces around 540% more energy than it takes to grow it, while corn-based ethanol only returns around 25% more energy than it takes to produce it.

Producing Ethanol Using Switchgrass Produces More Than 5 Times as Much