Gas 2.0

For the moment, the price at the pump is reasonable. A spike in demand or a terrorist disruption, however, will quickly remind us that we are desperately dependent on oil as we continue to consume 140 billion gallons of gasoline per year. Even in these recessionary times of moderate demand, we are running out of easy to extract oil from dessert sands. We are turning to sources of unconventional oil, such as tar sands in Canada, to produce oil with ever increasing greenhouse gas emissions.

For a while, corn ethanol was viewed by some as a step in the right direction. Now we are like the character in a Woody Allen comedy who explains, “I used to be a heroin addict; now I’m a methadone addict.” At a time when a billion people go hungry, many as a result of disappearing water on this heating planet, fuel from food is not the answer. Read the rest of this entry »

The 31st Symposium on Biotechnology for Fuels and Chemicals

One of the world’s most prestigious and established biofuels meetings, the 31st Symposium on Biotechnology for Fuels and Chemicals, is currently underway May 3-6 in San Francisco, with more than 800 scientists expected to attend sessions on topics ranging from commercialization of biofuels and their long-term sustainability to emerging technologies and turning algae into fuel.

We’re liveblogging (on Twitter) from today’s press meeting for the event.

You can also follow the author here, or just search for hashtag #biofuelsymposium.

The Good

The 9 billion gallons of ethanol that Americans used last year helped drive down oil prices. For those of us who fuel our vehicles with gasoline, as much as 10 percent of that gasoline is ethanol. The Energy Independence and Security Act of 2007 requires that more biofuel be used every year until we reach 36 billion gallons by 2022.

Reduced oil prices are good. We can go from good to great, if we move past fuel from food and haste to fuels from wood and waste. Although the economics do not yet favor major production, pilot plants are taking wood and paper waste and converting it to fuel. Other cellulosic material is even more promising. Some grasses , energy crops, and hybrid poplar trees promise zero-emission fuel sources. These plants absorb CO2 and sequester it in the soil with their deep root systems. These plants often grow in marginal lands needing little irrigation and no fertilizers and pesticides, standing in sharp contrast to the industrial agriculture that produces much of our fuel. (see Dedicated Energy Crops Could Replace 30% of Gasoline: Ceres, Inc. Wants to Make it Happen) Read the rest of this entry »

Cellulosic ethanol is, for some, the holy grail of alternative fuel, while others remain resolutely unconvinced, claiming such confidence in the potential of biofuel as a fool’s errand (or worse).

Beyond these entrenched extremes, ranging from wild optimism to abject skepticism, comes the real heavy lifting - understanding there are significant hurdles inherent in getting second generation biofuel from the lab into full-scale sustainable commercial production, but seeing those hurdles as challenges to be overcome, not as roadblocks from which to retreat, and working to bridge the gap from current reality to potential promise.

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It is well-known, of course, that the rich and their descendants will be completely immune to the effects of climate change. Thus, many of them have been driving efficiency-challenged cars that carelessly drain the last of the world’s oil, making their carbon footprint heavier than that of lesser beings.

So, from a climate-change point of view, who better to target with the security of their own driveway supply to power their gas guzzlers — from a carbon free fuel in place of oil? The I’ve got mine crowd.

Everyone who drives gas guzzlers could recoup the cost in a bit over a year. How?

Because this home ethanol distillation unit-cum-driveway pump invented by the Los Gatos company E-Fueler can distill ethanol from a nearly free feed stock; waste alcohol from vineyards or restaurants.
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If non-food cellulosic ethanol — “celluline” — is the future of sustainable biofuels, what are the best non-food crops to use to make it?

In a new study, researchers have shown that growing perennial grasses to make celluline rather than using corn stover or sugar cane is better for the environment because it increases soil health and stores much more carbon in the soil, thereby reducing greenhouse gases.

Current first generation ethanol is produced by fermenting the starch in corn kernels. This has become a controversial source of biofuel due to food vs. fuel concerns and the relatively low energy gain from the whole process.

But celluline represents a true departure from these concerns in that significantly more liquid fuel energy can be harvested from non-food portions of the plant — the stems and leaves. Celluline is still in the research and development stage, but many people have hung their hats on it as the holy grail that will replace corn ethanol and bypass concerns over food vs. fuel and energy gains (PDF).

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When the only factor that determined if farms lived or died was the price of food, farm income was rather boringly steady. Now that biofuels have given agriculture a value greater than staple food crops, farmers have seen some huge rewards. But with those rewards have come greatly increased risks — risks that farmers are finding out the hard way right now.

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In a new report, the Renewable Fuels Association (RFA) says the events of recent months clearly indicate that production of corn ethanol is not a major driving factor behind the continued high food prices at the supermarket.

In the report, “Will the Plunge in Grain Prices Mean Lower Food Prices at the Supermarket?,” the RFA points out that, while prices for agricultural staple commodities such as corn, wheat, and soybeans have all plummeted by about 50% in the last half year, food prices at the grocery store have remained highly elevated. At the same time, ethanol production has dramatically increased.

When the above factors are taken together, the link between grocery store food prices and corn ethanol production becomes dubious. Not only that, and also somewhat unintuitively, it seems that the diversion of relatively large portions of the US corn crop to ethanol production has very little effect on even the market price of corn.

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Editor’s Note: I was in Houston, TX, last week, celebrating the International Year of the Planet at the first ever joint meeting between the American societies of Soil Science, Geology, Crop Science and Agronomy. With a significant focus on biofuels, this conference was rife with interesting materials.

The Challenge: Find biofuel crops that are “pro-poor.”

One Answer: Crops that can be grown with limited resources by small-scale farmers, can be converted to biofuel with existing cheap technology, and can simultaneously provide food, fuel, and livestock feed.

In my last post I discussed how agriculture could regain its rightful place as the keystone of civilization due to the rise of biofuels over the next 30 years or so. But, in what seems a ridiculously colossal conundrum, hundreds of millions of impoverished people worldwide could face starvation due to competition of fuel land with food land.

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Editor’s Note: I’m in Houston, TX, this week, celebrating the International Year of the Planet by posting on topics covered at the first ever joint meeting between the American societies of Soil Science, Geology, Crop Science and Agronomy. With a significant focus on biofuels, this conference should be rife with interesting materials.

In a wide-ranging session on Tuesday dealing with global biofuel, food security and poverty issues, there was plenty for the presenters to disagree about — but the one thing they could all concur on was that the biofuel genie is out of the bottle and he’s here to stay.

Several times during the session the presenters highlighted the fact that biofuels have finally brought an inherent value to agriculture that was previously missing. This, more than anything else, is why biofuels are not going to go away. Up to now, the lack of agricultural value has caused a deep deficiency in the level of funding and investment that governments worldwide have provided for their agricultural security and infrastructure.

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