Gas 2.0

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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. Read the rest of this entry »

This 100% biodiesel-powered, 78 ft wave-piercing trimaran aims to set an around-the-world speed record while maintaining a net zero carbon footprint. The Earthrace left Sagunto, Spain, on April 27, and has already made excellent time across the Atlantic, landing in Panama just 8 days later.

Inspired by the desire to “connect with people about the need to get renewable fuels into our energy mix and to inspire them to do something,” the Earthrace has already generated a whirlwind of publicity. Much of this is due to the boat’s eco-technological appeal. It’s been described as “a rally car but for oceans”, with the ability to submerge up to 23 feet underwater while powering through the ocean. The “eco-” part doesn’t just include circling the globe on 100% biodiesel. Parts of the boat are made from a hemp-based composite, bedding foams are made from canola oil, and the operation’s total carbon footprint has been balanced by purchasing carbon credits. Read the rest of this entry »

It looks like Solazyme will be making algal biodiesel for the US military, after a test-drive demonstrated the fuel’s superior cold-weather properties when compared to commercially-available biodiesel.

Former Director of Central Intelligence and Under-Secretary of the Navy R. James Woolsey tested the fuel himself by driving to the Worldwide Energy Conference & Trade Show in an unmodified 2008 Ford F450 fueled by 100% algal biodiesel. Read the rest of this entry »

Increased world demand for grains and vegetable oils due to population growth (esp. in China and India), the weak dollar, agricultural production problems around the world, and $100/barrel oil are some of the driving factors accounting for increasing food prices.

After covering 22 of the most popular myths about biodiesel, I realized I’d only given lip service to a major issue: increasing food prices. In Myth #2, I mentioned that the goal of biodiesel production is to move away from food-based feedstocks.

But until that happens, the question remains: if I use biodiesel made from soybeans right now, am I contributing to the larger problem of increasing commodity prices and starving poor people? Read the rest of this entry »

Most of us are at least vaguely familiar with biodiesel, but how much do we really know? While biodiesel is easily the most popular alternative fuel available, it’s commonly misunderstood or misrepresented by inaccurate information. Since the most frequent question I get is, “So what exactly is biodiesel, anyway?“, I decided to write a tome covering all the basics—a one stop shop for all your biodiesel- related questions.

It’s been exactly one year since I published the first Biodiesel Mythbuster on GreenOptions.com, and its popularity made a sequel inevitable. By way of a short introduction, here’s what I wrote last year: Read the rest of this entry »

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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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 »

Farmers in Northern Queensland, Australia, are investigating another approach to producing renewable fuel: growing diesel trees. As weird as that sounds, it’s real, and it isn’t a scientific breakthrough. We’ve actually known about the trees for over 300 years.

As Treehugger reported earlier this week, farmers in the more tropical region Queensland purchased about 20,000 Brazilian diesel trees, or Copaifera langsdorfii, with the intention of having a living oil-mine in 15 years. According to Purdue University, a 100 acre plot of trees could produce about 25 barrels of oil per year.

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PetroSun has announced it will begin operation of its commercial algae-to-biofuels facility on April 1st, 2008.

The facility, located in Rio Hondo Texas, will produce an estimated 4.4 million gallons of algal oil and 110 million lbs. of biomass per year off a series of saltwater ponds spanning 1,100 acres. Twenty of those acres will be reserved for the experimental production of a renewable JP8 jet-fuel.

Gordon LeBlanc, Jr., CEO of PetroSun, had this to say:

“Our business model has been focused on proving the commercial feasibility of the firms’ algae-to-biofuels technology during the past eighteen months. Whether we have arrived at this point in time by a superior technological approach, sheer luck or a redneck can-do attitude, the fact remains that microalgae can outperform the current feedstocks utilized for conversion to biodiesel and ethanol, yet do not impact the consumable food markets or fresh water resources.”

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While virtually everyone is familiar with the use of biodiesel as a substitute for diesel fuel, there are a few novel uses that may not have crossed your radar. Biodiesel can produce hydrogen, clean up oil spills, degrease your tools, heat your home, and more.

Here’s My Top 15 Unexpected Uses for Biodiesel:

1. Producing Hydrogen for Fuel-Cell Vehicles

This was the big story of the month: Researchers at InnovaTek have developed hand-sized microreactors that can turn biodiesel (or any other liquid fuel) into a hydrogen stream for use in an adjoining fuel-cell. Chevron has already invested $500,000 to develop hydrogen refueling stations for fuel-cell powered cars. InnovaTek hopes to eventually install the microreactors in vehicles, which would allow cars to fill up on biodiesel but be powered by a much more efficient and even cleaner-burning electric drivetrain. See the full story here.

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