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Thursday, May 22, 2008

Garbage Will Lead the Biofuel Revolution

“Don’t let invasive biofuel crops attack your country” was the warning delivered by concerned scientists yesterday at a UN meeting in Germany. Scientists from the Global Invasive Species Program (GISP), the Nature Conservancy and the International Union for Conservation of Nature all warned that bioenergy crops could prove ecologically and economically disastrous, as many of the proposed energy crops are in fact invasive species.

This warning could easily be aimed at entrepreneurs and venture capitalists, and be read as: “Don’t let invasive biofuel crops attack your business plan/investment.” Indeed, while Coskata and other cellulosic biofuel startups are stressing “non-food feedstocks,” perhaps the real next step is “non-crop feedstocks” — to that end, many biofuel startups are targeting garbage, waste and leftovers as feedstocks that are both low-cost and low-risk.

In their new report, “A Risk Assessment of Invasive Alien Species Promoted for Biofuels,” GISP lists 28 plant species already being cultivated for biofuel use that are classified as invasive. And “invasives,” as defined by the National Invasive Species Council, can be subject to stifling federal and state regulations.

This is a serious potential regulatory monkey wrench for the biofuel startups depending on America’s cropland being quickly converted to green waves of energy grasses. But it could be a boon for startups focusing on using waste products as biofuels. Agricultural wastes, like corn stover and sugarcane bagasse, are being targeted in the U.S. by startups like Mascoma and Coskata and in Brazil by Brenco and KiOR.

Coskata’s first biorefineries will use currently available feedstocks — wood chips, sugarcane waste and municipal trash. The company estimates that municipal waste could be used to produce 8-10 billion gallons of fuel annually. The untapped market of industrial waste could double that. “Industrial waste gases off of steel mills could provide another 10 billion gallons,” said Wes Bolsen, Coskata’s chief marketing officer and VP. “Those gases are exactly what Coskata’s microbes could eat. They’re burning bug food. Coskata is actively approaching steel producers to turn those gases into fuel.”

But Coskata still believes there’s a place for sustainably and safely grown energy crops. “The energy crop market is a few years away,” Bolsen told us. “We’re going to wait and see it develop in a sustainable way before we decide to build a $400 million biorefinery dependent on any one of those crops.”

The logical conclusion of this progression is Craig Venter’s much-vaunted “fourth-generation biofuels.” Venter has said that by next year, his startup, Synthetic Genomics, will be producing octane from the ultimate waste product - carbon dioxide.

GISP recommends risk assessment and information gathering before any country moves full-steam ahead with energy crop plantations. That might be a little late as both the U.S. and the EU have already passed legislation mandating increases in non-food biofuels. In the mean time, we haven’t seen anyone raise objections to using garbage as a feedstock…yet.

To read more on biofuels:

An A to Z of the Biofuel Economy

15 Algae Startups Bringing Pond Scum to Fuel Tanks

Primer: What You Need to Know About Brazilian Biofuels

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World’s Largest College-Based Solar Farm Coming to Florida

Sun setting over Grayton Beach in Northwest Florida. (Image credit: Ebyabe at Wikimedia Commons under a GNU Free Documentation license.)The Sunshine State might have a lot of catching up to do when it comes to solar energy installations, but it’s now on a fast track toward big improvements.

The tide began turning when Gov. Charlie Crist, a Republican with a strong environmental sentiment and an affinity for renewable energy, first took office. Then came the debut earlier this year of Florida’s largest solar array to date, a 250-kilowatt installment in Sarasota County.

And now comes the news that Florida Gulf Coast University (FGCU) in Ft. Myers has been singled out by state lawmakers for an $8.5 million allocation to build a 16-acre solar farm on its campus. While the funding still needs a final OK from Crist, who’s likely to approve, the money would help FGCU construct what would be the largest university-based solar farm in the world.

Once the allocation is cleared by the governor, FGCU officials plan to move forward aggressively, with plans to begin construction in October and finish by next summer. Upon completion, the state-funded solar farm is expected to provide 100 percent of the campus’ energy needs.

While that project alone could save the school $22 million in energy costs over the next three decades, university officials have even greater ambitions. In addition to the state funds, they hope to collect enough private donations to cover the cost of another solar array that could generate one further megawatt of power.

With developments like this, Florida’s energy security future looks a little brighter every day.

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How To Reduce Vampire Power

Vampires, Phantoms, and Bears, Oh My!

Okay, so there aren't any bears in this story. But there are vampires, phantoms, idlers, and warts. In this case, however, we're talking about vampire power, phantom loads, idling standby current, and wall warts. They all basically refer to the same thing: electronic devices with two sharp, pointy teeth that latch into your wall sockets and suck blood...err...electricity all day, all night, whether on or "off," whether charging batteries or not. These devices include TV's, VCR's, DVD players, answering machines, iPods, cell phones, stereos, laptops, desktops, anything with a remote, anything with a charger, anything with a clock display. They are everywhere. Lurking.


Top 10 ways for you to fight the vampires

  1. Unplug your devices. It's as simple as that. Pull TV/computer/stereo/etc power cords out of the outlet. If they're not in use or if they're totally unneccesary (are you really going to ever use that VCR player again?), unplug.
  2. Reduce your demand. Sure, electronic gizmos are fun. But do you really need 2 TVs for one room? If the answer is yes, then at least follow number 6's advice!
  3. Use the other off switch. Many devices also have an 'off' switch in the back. For example, most computers come with one 'soft' power switch on the front, which takes it from standby to on. Separately, there is usually a real 'on/off' switch located in the back on the power supply (near where the power cord goes in).
  4. Plug your devices and chargers into a power strip. And when you're not using those devices, turn off your power strip.
  5. Remove chargers from the wall when you're not charging. Your cell phone charger, iPod charger, laptop charger, etc. keeps drawing electricity even if your phone/Ipod/laptop/etc isn't charging. So if your phone says "Charge complete" (or worse, isn't even attached to your charger), pull out the charger.
  6. If you're in the market for new electronics, buy Energy Star qualified. Energy Star takes standby power into account and their qualified devices draw less than the average when in their "off" mode. Some of their best electronic items include cordless phones and audio equipment.
  7. Get a phone that tells you to unplug it. Nokia announced in May 2007 that it will be rolling out new phones with audible alerts (they say, "Battery is full, please unplug the charger.") This feature will first appear in models 1200, 1208 and 1650 (they will most likely start in Europe).
  8. For your various computer accessories, try a smart strip. These work really well when it's not feasible to be constantly unplugging your devices. Check out the Isole Plug Load Control. This power strip saves energy by monitoring occupancy. The Smart Strip Power Strip monitors power differences between computers and peripherals. This way, when you shut down your computer, the Smart Strip automatically shuts off the accessories. The Mini Power Minder also works by communicating between your computer and your accessory.
  9. To learn about the power consumption of your electronics, look into a Kill-A-Watt. This device will tell you about the efficiency of your electronics, whether turned on or "off." It can actually be kind of fun (and definitely enlightening) to run around your house and see how much juice each piece of equipment takes, in both and and standby mode. You'll likely be surprised. (If you want something a little more hardcore, try Watts Up?).
  10. If you're up for a whole house project, check out GreenSwitch, a wireless home energy control system that let's you cut off power to your various electronics quite easily. For other whole house devices, here's a wiki that might be right up your alley.


(Image from GOOD Magazine)

Basics of vampire power

Most people think that when you turn something off, it actually turns off. Most people assume that it stops drawing power. Unfortunately, that's not true in the case of most electric devices. Most of them just hover in standby mode, waiting for you to 'turn on' the power again.

A 1999 study in New Zealand conducted by the Energy Efficiency and Conservation Authority indicated that 40% of microwave ovens used more electricity to power the clock and the keypad over the course of the year than actually heating food. Big screen TV's (and their respective cable boxes and satellites) up to 30 watts when off. A computer left turned on can potentially draw as much current as a refrigerator. And what about those chargers? Even when your cell phone (or other battery operated device) isn't charging, even if it's not even plugged in, it's still drawing power. It may even add as much as 10% to your energy bill.

This is bad news for your wallet and bad news for the environment. Studies conducted by the Lawrence Berkeley National Laboratory estimate that standby power consumption in the US accounts for 5% of all residential power consumption. That means Americans spend more than $3.5 billion annually on wasted power. It also means that our standby power is responsible for 27 tons of carbon dioxide emissions.

The International Energy Agency (IEA) estimates that globally standby power is responsible for 1% of carbon dioxide emissions (to contextualize that number, it is estimated that 2-3% of CO2 emissions are from air travel). And let's be honest. Those numbers are probably growing given the affinity many of us have for new gadgets and fancy appliances.

What's being done on the manufacturer and policy side?

  • Some manufacturers are making appliances and electronics more efficient (we applaud them): Energy Star takes standby power into consideration when evaluating products.
  • In 1997, the EU negotiated with consumer electronic manufacturers to reduce standby losses of TV's and VCR's; in 2000, the EU worked on an agreement to reduce standby losses of audio equipment; in 2003, an agreement was reworked for TV's and DVD players.
  • In 1999, the IEA launched the One Watt Initiative, an international action plan to reduce standby power in all appliances to one watt by 2010. The plan would reduce CO2 emissions by 50 million tons if OECD countries participated (that's the equivalent of taking 18 million cars off the road). In 2000, Australia endorsed the One Watt Initiative.
  • In 2001, President Bush signed Executive Order 13221 requiring the federal government to purchase electronics with one watt or lower of standby draw.
  • On January 1, 2006, a California Energy Commission regulation went into effect limiting standby power-consumption of consumer-electronic devices, including DVD players and stereos. Under this legislation, TV's and DVD player that consume more than three watts in standby mode are illegal, power adapters are limited to 0.75 watts (which will fall to 0.5 watts in January 2008), and as of 2007, stereos without permanent display clocks are limited to 2 watts, while those with clocks are limited to 4 watts.

Additonal Resources