Aemetis Announces EPA Approval...

The Wall Street Journal's MarketWatch

Sept. 3, 2013, 8:45 a.m. EDT

...as the First Converted Corn Ethanol Plant to Produce D5 Advanced Biofuels Using Sorghum/Biogas/CHP

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Nexterra, UBC and GE celebrate opening of biomass CHP system

Biomass Magazine
By Nexterra Systems Corp.
September 14, 2012

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Mapping the Changes in Renewable Power Investment

Biomass Magazine
By Luke Geiver
September 13, 2012

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USDA announces REAP funding, 5 biomass projects benefit

Biomass Magazine
By Erin Voegele
August 14, 2012

On August 14 Agriculture Secretary Tom Vilsack announced that 106 projects have been awarded funding under the USDA Rural Development’s Rural Energy for America Program. The REAP program, which was authorized by the 2008 Farm Bill, provides grants and loan guarantees for agricultural producers and rural small businesses to reduce energy consumption and costs, use renewable energy technologies in their operations, and conduct feasibility studies for renewable energy projects.

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Landfill gas ranks Coca-Cola third in EPA green power users

Biomass Magazine
By Anna Simet
August 09, 2012

The U.S. EPA released its top 25 onsite green power generators through its Green Power Partnership program for this quarter, and Coca-Cola has ranked third, mainly because of a 6.5 combined-heat-and-power (CHP) system the company commissioned in April.

The facility was developed by and is owned and operated by Mas Energy. Located at Republic Services’ Hickory Ridge landfill in Atlanta, Ga., it’s located adjacent to Coca-Cola’s syrup plant and supplies it with all of its electricity, steam and chilled water needs.

Methane collected at the plant is cleaned, upgraded and delivered to the CHP plant via a six-mile pipeline owned by Atlanta Gas Light. There, three GE reciprocating engines convert the gas into power, and three Kickham heat-recovery engines use heat from the GE engines to produce steam. A York steam turbine-driven chiller then uses that steam to produce chilled water.

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BTEC webinar explores biomass CHP, district heating

Biomass Power & Heat
By Anna Austin May 26, 2011

The efficiencies of conventional or central station fossil fuel plants have not changed much in the past half century, according to John Cuttica, director of the Midwest CHP (combined heat and power) Regional Application Center.

“It’s hard to believe, but the efficiencies of these plants have not really increased in over 50 years,” he said. “For every 100 units of fuel that enters these plants, we only get about 30 to 33 units of electricity. The rest of the energy contained in the fuel is released into the atmosphere in the form of heat.”

On the other hand, efficiencies in thermal energy have increased to 80 percent or higher, he said, adding that a baseline to improve upon begins at about 50 to 55 percent efficiency.

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