Gas 2.0

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It’s hard to believe that one of America’s greenest cities lacks a true biodiesel station. Yes, San Francisco has an Olympic station on Third Street however is only supplies commercially licensed diesel vehicles with “B20” which even in the controversial biodiesel world isn’t that green. If the building and fire departments sign off, then Dogpatch Biofuels will open in the near future. Yes, we can wait to smell all the great restaurant cooking oil waste from SF’s top level eateries filled into the hungry car engines. Read the rest of this entry »

In Europe, not so much…

Brazil, which has to a large degree lead the ethanol charge because of its ability to use sugar cane for ethanol production rather than corn, now relies on the biofuel for 16% of its energy needs. This puts ethanol at #2 in Brazil for largest energy sources, right ahead of hydroelectric, which accounts for 14.7% of electricity production. Both of these sources, however, are behind petroleum, which is the largest energy producer in Brazil.

In the US, on the other hand, ethanol still does not play such a prominent role, even though 23.7% of the annual corn crop is going to create biofuels. The market share that ethanol commands in the US will likely only increase, especially as new technologies allow for the production of cellulosic ethanol and sources other than corn come into vogue.

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Biofuels are increasingly lumped into a single category of environmentally apocalyptic dead-end solutions. As the food vs. fuel debate rages on, it’s no wonder that the general public believes this.

But not all biofuels are created equal, as the chart above illustrates (click the image to see full size). It’s one of the best depictions I’ve seen of how each biofuel feedstock has completely different impacts on overall greenhouse gas emissions, water and pesticide use, and the energy required to produce the fuel. (Click on the chart for the full image) Read the rest of this entry »

Homemade ethanol guru Floyd S. Butterfield and Silicon Valley entrepreneur and innovator Thomas J. Quinn want to see you making ethanol in your backyard. Their creation, called the E-Fuel 100 MicroFueler, is a stacked washer-dryer sized reactor that can convert sugar into ethanol for (they claim) $1.00 per gallon.

Before you get too excited, please note that the unit is probably too expensive for your next block party, unless you’ve got an extra $9,995 lying around somewhere. Fortunately, state and Federal tax credits can halve this, but that still keeps it out of the price range of the average American. Read the rest of this entry »

Converting the nation’s vehicle fleet to run on 85% ethanol (Flex-Fuel) may have gotten a whole lot easier.

AAMCO, one of the world’s largest chains of automotive service centers, has started an initiative designed to promote environmental sustainability and energy efficiency across the nation.

The Eco-Green Auto Service initiative will certify automotive centers that meet a stringent set of criteria while adding services that cut emissions, improve mileage, and reduce hazardous waste associated with owning a vehicle.

AAMCO is also promoting alternative fuels by installing E85 conversion kits that allow vehicles to run on ethanol blends up to 85%. Their service centers will use kits provided by Flex Fuel US ®, called the FLEX-BOX SMART KIT™, which is the only ethanol conversion kit fleet-certified by the EPA.

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Scania (part of Volkswagen) builds modified, heavy-duty diesel engines designed to run on almost pure ethanol (E95, or 95% ethanol, with a 5% ignition improver).

If that sounds weird, that’s because it is. US auto manufacturers make a big deal out of converting cars and trucks to run on ethanol/gasoline blends of up to 85% ethanol. Scania has done better than that for 15 years, and guess what, their engines can run on 100% biodiesel too, without any modification. Read the rest of this entry »

As Green Car Congress reported earlier this week, ethanol production is up 37% for the first quarter of 2008.

Ethanol plants in the US are now pumping out approximately 21.4 million gallons of corn-based ethanol every day, which has already amounted to 1.9 billion gallons for the year.

The upshot of all this production is progress toward the ethanol quotas required by the new Renewable Fuels Standard, which mandates 15 billion gallons of ethanol be produced from corn in the US by 2015.

But check this out: the Renewable Fuels Association estimates that in 2015 it will take 1/3 of the total US corn harvest to meet those quotas. The estimation is based on producing 3 gallons of ethanol from one bushel of corn, and a total corn harvest of 15 billion bushels.

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There’s always a better whey.

A Wisconsin cheese producer, Joe Van Groll of Stratford, Wisconsin, has a way with whey.

For nearly a decade, Van Groll experimented using the waste product of cheese manufacturing, whey permeate, to manufacture ethanol. During the past four years, he’s been doing just that, and believes his process can produce ethanol for less than $1 a gallon.

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Researchers at Michigan State are trying to get corn-stover to digest itself after harvest. Doing so would mitigate the costly pretreatment steps needed for the production of cellulosic ethanol from the non-edible parts of the corn plant.

MSU’s scientists are adding genetic material to the corn’s genome, genes that would normally be responsible for the digestive enzymes produced by fungi and the microbes in cow rumens. The newly transgenic plants store these enzymes in vacuoles in the leaves and stalk in a way that doesn’t affect the plant while it’s alive.

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Would I put you on? It’s true, algae-based biofuels are being produced from CO2 emitted from smokstacks.

It’s happening through a company called GreenFuel, headquartered in Cambridge, Mass.

GreenFuel has been partnering with Arizona Public Service Company to create biofuels from algae grown using carbon dioxide (CO2) emissions from a power plant. The companies successfully grew algae at APS’ Redhawk natural gas power plant in Arizona, and is moving their tests to a coal-fired power plant at Farmington, NM.

According to a release from APS, algae at Redhawk grew at levels 37 times higher than corn and 140 times higher than soybeans, which are now used to create biofuels. Read the rest of this entry »