Chicken waste turned to watts

December 26, 2009 John Murawski, The News and Observer, Raleigh, N.C.
Chicken farm

Image from Wikipedia

A Nevada energy developer says it has developed an environmentally clean way of using animal waste from chicken farms across the state to light up homes and offices. Green Energy Solutions wants to convert the bird droppings into methane and use the clean-burning gas as a renewable fuel to generate electricity.

The new company is one of many that hope to benefit from a 2007 state law that requires electric utilities to increase their reliance on renewable fuels, such as solar energy, poultry waste and swine waste. But green remedies, like all answers to complex problems, cause side effects.

Poultry waste, despite its abundance, has so far proven a problematic fuel. When burned directly, it spews air emissions comparable to those from a coal-burning power plant. Green Energy Solutions proposes to solve that problem by extracting methane from the waste and leaving behind an odorless sludge that can be used as fertilizer.

In recent public filings with the N.C. Utilities Commission, the developer has said it is building a power plant in South Carolina that is set to begin operating in June 2010. According to filings, it is operating several similar facilities in Europe and has contracts or commitments with 13 poultry farms in North Carolina to supply organic fuel. Green Energy Solutions would generate electricity at the farm and sell the power to an electric utility.

Company vice president Julian Cothran says Green Energy Solutions has submitted proposals to Progress Energy and Duke Energy, as well as to ElectriCities, which represents municipal power agencies, and to GreenCo, an arm of the state's rural electric cooperatives.

"The challenge is getting a power purchase agreement signed to sell the electricity," Cothran said. "We're not polluting the atmosphere. We're not polluting the ground."

Representatives from the power companies were not available for comment, but Cothran told the utilities commission in a recent filing that the utilities have been slow to embrace Green Energy Solutions. Progress Energy said the price was too high and signing a 25-year contract was too risky. GreenCo was not responsive, Cothran said in a filing. Cothran said the prices he's negotiating are confidential, but the talks are continuing.

In the filing, Cothran cites among his qualifications two engineering degrees and 40-plus years' experience in engineering in the U.S. Army and private industry. He launched the company in Nevada in 2007 with colleagues.

The only colleague named in the company's registration with the N.C. Department of the Secretary of State is A.T. Mathis, listed as Green Energy Solutions' president, treasurer and secretary. Mathis did not return a phone call or an e-mail message, and Cothran did not respond to further questions about his partner.

Green Energy Solutions shares a street address with another Mathis venture, Boss Business Services, which specializes in asset protection planning, tax advice and other business services. Last month, Boss Business Services launched a new product, the Business Optimizer, which costs $495 and is guaranteed to help customers find $2,500 in tax overpayments, missed deductions and other oversights.

Solutions is not the first company to try to tap poultry waste as a renewable resource. Fibrowatt, based in Pennsylvania, operates a facility in Minnesota and has selected three sites in this state for development. Fibrowatt, which would burn the waste, hasn't signed contracts to sell power in this state, and was fined $65,000 this month for exceeding pollution limits in Minnesota.

Methane as source

Methane is used to generate electricity in North Carolina and elsewhere in this country, primarily by tapping large concentrations of gas seeping from landfills.

Burning methane is "carbon neutral," Cothran said. When burned, methane emits about half the carbon dioxide that is emitted by burning coal. Burning coal introduces new carbon dioxide into the atmosphere, whereas burning methane releases carbon dioxide that would have come out anyway when animal waste deteriorates naturally.

"It's total waste-to-energy," he said.

Distributed by McClatchy-Tribune Information Services.

3.8 /5 (17 votes)  

Filter


Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

Husky
Dec 26, 2009

Rank: 5 / 5 (1)
i am all for green, but it needs to get cheaper, companies and consumers want to recoup their investment in 5-10 years, not waiting 30 years for it to break even or even pay more
flaredone
Dec 26, 2009

Rank: not rated yet
..but it needs to get cheaper..
In another words, it just needs to get greener, because cost of technology reflects the consumption of matter and energy required for its introduction.
Sciencebee
Dec 26, 2009

Rank: 5 / 5 (1)
Sounds like Green Energy Solutions is trying to get a premium for their electricity using the 2007 state mandate as leverage. That is 100% speculation though.
Rank 3.8 /5 (17 votes)
Related Stories
Relevant PhysicsForums posts
  • Force free body diagram problem on gym equipment
    created1 hour ago
  • Empirical data regarding shower heads and water
    created9 hours ago
  • feed hold button on CNC lathe
    createdFeb 09, 2012
  • RFAC in Fortran
    createdFeb 09, 2012
  • dynamics 2/32
    createdFeb 08, 2012
  • dynamics
    createdFeb 08, 2012
  • More from Physics Forums - General Engineering

More news stories

Netflix light on flicks as viewers soak up TV shows

Like most fresh faces that arrive in Hollywood, Netflix wanted to be a movie star. But now it's learning what many in Tinseltown have known for decades: Movies are sexy, but the real money is in television.

Technology / Business

created 36 minutes ago | popularity not rated yet | comments 1

Sony's Hirai refuses to abandon dire TV business

Struggling Japanese entertainment giant Sony will not abandon its cash-bleeding television business, its incoming CEO says, but he acknowledges tough decisions lie ahead including over redundancies.

Technology / Business

created 1 hour ago | popularity not rated yet | comments 0

New error-correcting codes guarantee the fastest possible rate of data transmission

Error-correcting codes are one of the triumphs of the digital age. They’re a way of encoding information so that it can be transmitted across a communication channel — such as an optical fiber o ...

Technology / Computer Sciences

created 3 hours ago | popularity 5 / 5 (3) | comments 2 | with audio podcast

Small modular reactor design could be a 'SUPERSTAR'

(PhysOrg.com) -- Though most of today's nuclear reactors are cooled by water, we've long known that there are alternatives; in fact, the world's first nuclear-powered electricity in 1951 came from a reactor ...

Technology / Energy & Green Tech

created 3 hours ago | popularity 5 / 5 (5) | comments 9 | with audio podcast

Advanced power-grid model finds low-cost, low-carbon future in West

(PhysOrg.com) -- The least expensive way for the Western U.S. to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other ...

Technology / Energy & Green Tech

created 3 hours ago | popularity 5 / 5 (1) | comments 3 | with audio podcast


Curry spice component may help slow prostate tumor growth

Curcumin, an active component of the Indian curry spice turmeric, may help slow down tumor growth in castration-resistant prostate cancer patients on androgen deprivation therapy (ADT), a study from researchers ...

Antidepressants and pregnancy: Women must consider the impact of drugs on baby, and of depression on baby, themselves

Upon learning they are pregnant, most women dutifully nix the alcohol, sushi and caffeine. But what about antidepressants?

To avoid early labor and delivery, weight and diet changes not the answer

One of the strongest known risk factors for spontaneous or unexpected preterm birth – any birth that occurs before the 37th week of pregnancy, most often without a known cause – is already having had one. For women ...

Arthritic knees, but not hips, have robust repair response

Researchers at Duke University Medical Center used new tools they developed to analyze knees and hips and discovered that osteoarthritic knee joints are in a constant state of repair, while hip joints are not.

The power of estrogen -- male snakes attract other males

A new study has shown that boosting the estrogen levels of male garter snakes causes them to secrete the same pheromones that females use to attract suitors, and turned the males into just about the sexiest ...

Fool's gold may prove an unlikely alternative to overexploited catalytic materials

Catalytic materials, which lower the energy barriers for chemical reactions, are used in everything from the commercial production of chemicals to catalytic converters in car engines. However, with current catalytic materials ...