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Call to Action for a Truly Sustainable Renewable Future
August 8, 2013 – 5:07 pm | No Comment

-Include high octane/high ethanol Regular Grade fuel in EPA Tier 3 regulations.
-Use a dedicated, self-reducing non-renewable carbon user fee to fund renewable energy R&D.
-Start an Apollo-type program to bring New Ideas to sustainable biofuel and …

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Home » Algae/Other Aquatic Organisms/Seaweed, Business News/Analysis, Field Crops, Forestry/Wood, Opinions, Sustainability

Another Brick in the (Blend) Wall: Key Thresholds and Barriers for Biofuels

Submitted by on August 20, 2010 – 1:07 pmNo Comment

by Jim Lane (Biofuels Digest)  …But even were the US EPA to approve E15 ethanol blending, there are some other significant walls and thresholds to keep in mind.

Here are the Digest’s Top 10.

1. The $60 oil parity wall.  At the 2010 Advanced Biofuels Leadership Conference, Coskata CMO Wes Bolsen said, “If we didn’t believe that the price of oil was ultimately going to reach $100, none of us would be here.” …

2. The 23 gram algae viability wall.  23 grams per square meter per day. Sustainably above that yield, algal biofuels can be a goldmine. …

3. The 19.5 billion gallon blend wall for E15.  After the E10 blend wall, cometh the E15 blend wall, clocking in at 19.5 billion gallons.  …

4. The 40 billion gallon blend wall for Bu19 biobutanol.  Well, biobutanol gives us some options, doesn’t it. As we have reported in the Digest, biobutanol is generally approved for blending today at 60 percent higher levels than ethanol. …

5. The 2.5:1 EROEI wall. That’s energy return on energy invested, for the blissfully uninitiated.  …The returns have increased from corn to 2 to 1, and there’s still a lot of muttering. …

6. The 536 billion gallon energy security wall .  …

7. The 150 million acreage wall.    How much acreage is really available for biofuels development. …

8. The 560 million tonne animal feed wall. Virtually all (but not all) biofuels and advanced biofuels processes create a leftover biomass, which generally is marked for distribution as animal feed. …

9. The 1 ton per acre biomass residue wall. In Iowa, POET is offering guidance to farmers that they can sustainably remove up to 1 ton of biomass residues per acre for cellulosic ethanol production, without altering their fertilizer or other land-management strategies.  …

10. The aforementioned 13 billion gallons US E10 blend wall.   READ MORE

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