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EIA: US energy-related CO2 emissions in 2012 lowest since 1994; reflects drop in coal use

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The largest drop in emissions in 2012 came from coal, which is used almost exclusively for electricity generation. During 2012, particularly in the spring and early summer, low natural gas prices led to competition between natural gas- and coal-fired electric power generators.

Coal 265
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Vega Biofuels’ pilot torrefaction plant to use new process to lower costs of biomass feedstock; site remediation biomass

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Vega Biofuels announced that its Joint Venture (JV) partner, Agri-Tech Producers, LLC (ATP) has developed a new and patent-pending process that significantly reduces the cost of some of the biomass feedstock for the company’s Allendale, SC pilot torrefaction plant by using site remediation biomass.

Cost Of 236
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Stanford study finds current carbon capture technology inefficient & increases air pollution

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Even if you have 100 percent capture from the capture equipment, it is still worse, from a social cost perspective, than replacing a coal or gas plant with a wind farm because carbon capture never reduces air pollution and always has a capture equipment cost. Only when wind replaced coal itself did social costs decrease.

Pollution 271
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SRI developing process for co-gasification of methane and coal to produce liquid transportation fuels; negligible water consumption, no CO2

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Researchers from SRI International (SRI) are developing a methane-and-coal-to-liquids process that consumes negligible amounts of water and does not generate carbon dioxide. In conventional CTL approaches, energy is supplied by burning a portion of the coal feed, which then produces carbon dioxide. HR0011-10-0049. DARPA solicitation.

Coal 257
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EPRI assesses status of 8 key power generation technologies for US; estimates of capital cost and levelized cost of electricity

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Comparative levelized cost of electricity in 2025 ($/MWh) at different CO 2 prices. Representative costs are reported in constant December 2010 US dollars. LCOE calculations are based on assumptions regarding future unit operations, operating costs, fuel prices, financing terms, and inflation. Source: EPRI. Click to enlarge.

EPRI 239
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Berkeley study finds renewable portfolio standards insufficient to meet 2030 GHG emission targets; new policy required

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The least expensive way for the Western US to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy that may include nuclear power, according to a new study by University of California, Berkeley, researchers. Click to enlarge.

Renewable 231
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Pratt & Whitney Rocketdyne Successfully Completes First in Series of Performance Tests on Compact Gasifier with Coal

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Pratt & Whitney Rocketdyne successfully completed the first in a series of performance tests on its compact gasifier, which is designed to help reduce the cost of coal gasification. The tests, conducted using Illinois coal, each lasted 12 to 37 hours at the pilot plant in Des Plaines, Ill., Earlier post.)

Coal 199