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"In this Notice of Proposed Rulemaking, EPA is proposing amendments to three separate sets of regulations relating to fuels. First, EPA is proposing to amend certain of the renewable fuels standard (RFS2) program regulations. We believe these proposals will facilitate the introduction of new renewable fuels as well as improve implementation of the program. This proposal includes various changes related to biogas, including changes related to the revised compressed natural gas (CNG)/liquefied natural gas (LNG) pathway and amendments to various associated registration, recordkeeping, and reporting provisions. This proposed regulation includes the addition of new pathways for renewable diesel, renewable naphtha, and renewable electricity (used in electric vehicles) produced from landfill biogas. Adding these new pathways will enhance the ability of the biofuels industry to supply advanced biofuels, including cellulosic biofuels, which greatly reduce the greenhouse gas emissions (GHG) compared to the petroleum-based fuels they replace."

Read full text of regulation here

"Fossil fuels are running out.

Bioenergy, or renewable energy made from biological sources could be our planet’s future sustainable energy source in a world where these fossil fuel supplies are lowering everyday.

Bioenergy Day, held Tuesday from 9:30 a.m. to 1:30 p.m. at the State Botanical Garden of Georgia, will teach students through hands-on exhibits how energy is generated through wood, corn and other biomass and how it could be economically feasible in the future."

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In Tennessee, Governor Bill Haslam and U.S. Senator Lamar Alexander are promoting switchgrass for ethanol production, as a DuPont venture gets ready to begin production next year. Switchgrass is widely grown in East Tennessee and can offer several benefits to the region and country including reducing the strain on corn production, which creates higher prices.

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"Researchers at the University of Georgia may be close to finding it. A report by Susan Mittleman on Georgia Public Broadcasting and transcribed on the Public Broadcasting Atlanta website (pba.org) describes a promising new process for making ethanol and other biofuels from vegetation common to this area, such as switchgrass and pine or poplar trees.

The idea of making fuel from biomass is not new. But like corn-based ethanol, fuel synthesized from biomass has so far been too expensive to make it practical."

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"The single most important barrier to the use of lignocellulosic biomass such as switchgrass, populous, sorghum and miscanthus for production of biofuels is the resistant nature of the biomass itself. The problem lies in the conversion or degradation of complex biomass to make products of interest.

New research from scientists at the University of Georgia who are members of Department of Energy’s BioEnergy Science Center (BESC) provides a genetic method for manipulating a group of organisms, called Caldicellulosiruptor, that have the ability to use biomass directly at temperatures over 160 Fahrenheit. The ability to modify the microbes to make the needed fuel products is a required first step for modern industrial fermentations.  This allows researchers to combine the natural ability to consume renewable plant materials with an altered improved ability to make what is needed."

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"The U.S. Department of Energy today announced it would fund its three Bioenergy Research Centers for an additional five-year period, subject to continued congressional appropriations. The three Centers —including the BioEnergy Research Center (BESC) led by Oak Ridge National Laboratory, the Great Lakes Bioenergy Research Center (GLBRC) led by the University of Wisconsin-Madison in partnership with Michigan State University, and the Joint BioEnergy Institute (JBEI) led by Lawrence Berkeley National Laboratory—were established by the Department’s Office of Science in 2007 as an innovative program to accelerate fundamental research breakthroughs toward the development of advanced, next-generation biofuels."

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"When Li Tan approached his colleagues at the University of Georgia with some unusual data he had collected, they initially seemed convinced that his experiment had become contaminated; what he was seeing simply didn’t make any sense.

Tan was examining some of the sugars, proteins and polymers that make up plant cell walls, which provide the structural support and protection that allow plants to grow. Yet his samples contained a mixture of sugars that should not be present in the same structure."

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"When Blount County farmer John Davis decided to enter the switchgrass business, he did so with some trepidation.

"I'm a cautious individual," said Davis, who last year planted the native grass on less than an eighth of his family farm through a contract with Genera Energy, which is working with more than 60 East Tennessee farmers to grow the up-and-coming bioenergy crop. He also wasn't sure he could part ways with the beef cattle business he'd been in all his life, even though, with today's production costs, the farm was barely breaking even."

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In Tennessee, Genera Energy has planted several plots of switchgrass along interstate corridors in Tennessee in conjunction with the Tennessee Department of Transportation (TDOT). The test plots are designed to see if switchgrass can help reduce maintenance costs by reducing the need for mowing and may also have the added benefit of producing biomass for energy and reducing erosion at highway interchanges.

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"Energy crops and agricultural residue, like corncobs and stover, are becoming part of rural America’s energy future. Unlike the more common biofuel derived from corn, these are non-food/feed based cellulosic feedstocks, and the energy content of the biomass makes it ideal for converting to sustainable fuel.

Last January in Vonore, Tenn., DuPont Danisco Cellulosic Ethanol (DDCE) opened a new biorefinery with the goal of producing at large-scale biofuel from cellulosic feedstock, beginning with corncobs and stover and moving to switchgrass.

DDCE, along with partners University of Tennessee Biofuels Initiative, Genera Energy and the state of Tennessee are working to establish a several-thousand-acre switchgrass crop for the biorefinery."