biofuels

Where will biofuels and biomass feedstocks come from?

When it comes to biofuels we have choices. We can do it poorly, using short-run approaches with no potential to scale, poor trajectory, and adverse environmental impact. Or we can do it right, with sustainable, long-term solutions that can meet both our biofuel needs and our environmental needs.

We do need strong regulation to ensure against land-use abuses. I have suggested that each cellulosic facility be individually certified with a LEEDS-like "CLAW" rating, and that countries which allow environmentally sensitive lands to be encroached be disqualified from CLAW-rated fuel markets.

We think a good fuel has to meet the CLAW requirements:

C -- COST below gasoline
L -- low to no additional LAND use; benefits for using degraded land to restore biodiversity and organic material
A -- AIR quality improvements, i.e. low carbon emissions
W -- limited WATER use.

Cellulosic ethanol (and cellulosic biofuels at large) can meet these requirements.

Environmentally, cellulosic ethanol can reduce emissions on a per-mile driven basis by 75-85% with limited water usage for process and feedstock, as illustrated later. Range, Coskata, and others currently have small-scale pilots projecting 75% less water use than corn ethanol, with energy in/out ratio between 7-10 EROI (though we consider this a less important variable than carbon emissions per mile driven).

Sustainable land use

The question about biomass production that arises first is about land use: how much will we need? What will it take? Is it scalable? For conservatism, I assume CAFE standards in the U.S. per current law, though I expect by 2030 to have much higher CAFE and fleet standards (hopefully up near 54mpg or a 100% higher that 2007 averages), which will dramatically reduce the need for fuel an hence biomass. Yes, this would include lighter vehicles, more efficient engines, better aerodynamics, low-cost hybrids, and whatever else we can get the consumer to buy that increases mpg.

Scientist says biofuel boom endangers world’s largest rainforest

A fifth of the Amazon rainforest — the world’s biggest carbon sponge — has disappeared since the 1970s. The Brazilian government has succeeded in recent years in slowing the deforestation rate, but its efforts have recently been faltering. Bungle in the jungle. Photo: iStockphoto In the last four months, 2300 square miles of rainforest got […]

A pragmatic view of cellulosic biofuels

So Vinod Khosla is not happy with with my recent attack on his (willful) ignorance, "Khosla blows his credibility dissing plug-ins." Gristmill has given the billionaire a platform to defend himself, but he just spouts even more nonsense in the bizarrely titled post, "Pragmatists v. environmentalists, part I":

I have been accused of dissing hybrids. I was mostly discussing Prius-type parallel hybrids and all the support they get, when one can get the same carbon reduction by buying a cheaper, similar-sized and -featured car and buying $10 worth of carbon credits. I was objecting to greenwashing (powered by a large marketing machine) that suggests hybrids can solve our problems ...

Corn ethanol, which has been heavily maligned in the mainstream media, reduces carbon emissions (on a per-mile-driven basis) by almost the same amount as today's typical hybrid ...

The Prius is the corn ethanol of hybrid cars ...

Seriously! This is like one of those newspaper puzzles: Can you spot all the errors?

Thus spake Chairman Peterson of the House Ag Committee

David already pointed to it, but it bears repeating: House Ag Committee Chairman Colin Peterson, a tireless champion of ethanol and any other big-ag project he can get his mits on, has declared that cellulosic ethanol could well never “get off the ground.” At best, he declared, cellulosic ethanol stands at least 10 years away […]

Notable quotable

"I really think the more I look at this whole cellulosic issue, there is a lot bigger problem to overcome here than people realize in terms of the feedstocks. We have a lot of work to do in that regard. I’m not sure cellulosic ethanol will ever get off the ground." — Rep. Collin Peterson […]

Hybrids and biofuels: The road ahead

Many people make the mistake of comparing apples to oranges. One has to compare futures to futures and current status to current status. All technologies improve, but some improve more than others.

The Prius gets 46 mpg, while a similar-sized Toyota Corolla gets 31 mpg. One of our investments (Transonic) is trying to make an engine that (if it works!) can be placed in a Prius to produce a vehicle that will have lower carbon emissions than the hybrid Prius at below $1,000 in marginal cost. Other efficient engine efforts abound. If battery technology efforts like Seeo (one of our investments), EEstor, silicon nanowire batteries (or similar efforts that others have funded and many we are evaluating) are successful, we will get the same effect (better petroleum mpg) with a plug-in -- if we can also clean up our grid at the same time!

From my perspective, if I have to pick between a 5-10 times lower cost/performance battery and a cleaned-up electrical grid in the next 5-10 years (or even 20-25 years), or pick cellulosic fuels in 50 percent more efficient ICE engines, I consider the latter lower risk and significantly more probable.

I am confident that cellulosic biofuels without significant land-use impact or biodiversity impact can achieve costs of $1.25/gallon in less than five years and below $1.00 per gallon in 10 years (more details on that, especially on land use / biodiversity and sources of biomass, in a upcoming paper). At this price point, the technology will be adopted broadly and rapidly worldwide, even if oil prices decline substantially.

Smart people talk about serious questions

Check out this cool new site, BigThink. It’s a collection of short video interviews with notable or famous people, asking them a series of common questions. Strangely addictive. The environment section is fairly anemic thus far (the site just launched a few weeks ago), but you can watch Mitt Romney, Dennis Kucinich, John McCain, and […]

Prius: Green or greenwash?

I have been accused of dissing hybrids. I was mostly discussing Prius-type parallel hybrids and all the support they get, when one can get the same carbon reduction by buying a cheaper, similar-sized and -featured car and buying $10 worth of carbon credits. I was objecting to greenwashing (powered by a large marketing machine) that suggests hybrids can solve our problems.

Corn ethanol, which has been heavily maligned in the mainstream media, reduces carbon emissions (on a per-mile-driven basis) by almost the same amount as today's typical hybrid. Despite the similar environmental profiles, one is a media darling and the other is demonized, despite its more competitive economics.

My main complaint has been the lack of critical analysis in this space. Corn ethanol (which I don't believe is a long term solution) has been framed by the oil companies' marketing machine, farm policy critics, and impractical environmentalists (though the NRDC and Sierra Club support corn ethanol's transition role as I do, subject to certain constraints). The Prius and hybrids have been positioned by Toyota's marketing machine. The public is gullible.

I am open and hopeful, especially longer term, on serial plug-in hybrids (a point I'll address in Part III). Price still remains a major issue. Even for serial hybrids, the ability to keep cost, or at least monthly payments, close to that of a regular ICE (internal combustion engine) car is unclear. Maybe another blogger with knowledge of practical automotive costs can detail the likely trajectory of serial hybrid costs (say, with a typical 40-mile "battery range"), as this remains the critical question.

The Prius is the corn ethanol of hybrid cars, and we should recognize that. It has increased investment in battery development, but beyond that it is no different than Gucci bags, a branding luxury for a few who want the "cool eco" branding (70%+ of Prius buyers make more than $100k per year).

In this series, I will try to lay out my views on hybrids as a whole -- what I believe hybrids are good for and what they are not. (My paper on Biofuels Pathways (PDF) delves into the details.)

Seed-and-chemical giant sees its profit triple

In a gold rush, the firms that supply the gold diggers with tools — not the gold diggers themselves — make the highest and steadiest profits. That’s a platitude, but it’s also usually true. And it’s now playing out in the boom in corn-based ethanol. Don’t waste much time envying corn farmers. Sure, they’ve seen […]