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EPA: US GHG fell 0.5% y-o-y in 2017; power sector down by 4.2%, transportation up 1.21%

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Year-over-year, US greenhouse gas emissions were 0.5% lower in 2017 than the prior year (after accounting for sequestration from the land sector), and power sector emissions fell 4.2%, according to the 2019 edition of the US Environmental Protection Agency’s (EPA) annual report on greenhouse gas (GHG) emissions.

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Sandia study finds more California gas stations could provide H2 than previously thought; NFPA 2 code

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A study by researchers at Sandia National Laboratories concludes that a number of existing gas stations in California can safely store and dispense hydrogen, suggesting a broader network of hydrogen fueling stations may be within reach. The study determined that 14 of the 70 gas stations—i.e.,

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EPA: US Greenhouse Gas Emissions Rose 1.4% in 2007

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The US Environmental Protection Agency (EPA) has released the national greenhouse gas inventory, which finds that overall emissions during 2007 increased by 1.4% Among domestic transportation sources, light duty vehicles represented 61% of CO 2 emissions, medium- and heavy-duty trucks 22%, commercial aircraft 8%, and other sources 10%.

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EPA: US greenhouse gases dropped 3.4% in 2012 from 2011; down 10% from 2005 levels

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US greenhouse gas emissions by gas. The US Environmental Protection Agency (EPA) released its 19 th annual report of overall US greenhouse gas (GHG) emissions, showing a 3.4% Annual US greenhouse gas emissions relative to 1990 (1990=0). Source: EPA. Click to enlarge. decrease in 2012 from 2011. The Inventory of U.S.

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Sandia progressing to demo stage with supercritical CO2 Brayton-cycle turbines; up to 50% increase in efficiency of thermal-to-electric conversion

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Research focuses on supercritical carbon dioxide (S-CO 2 ) Brayton-cycle turbines, which typically would be used for bulk thermal and nuclear generation of electricity, including next-generation power reactors. The Brayton cycle could yield 20 MW of electricity from a package with a volume as small as four cubic meters.

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Energix Research Successfully Tests Micro GTL Process

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Energix Research , a developer of gas-phase catalysis processes, technologies and systems, says it has successfully produced gas-to-liquids (GTL) products using its electrically activated nanocatalyst process. —Juzer Jangbarwala, CEO of Energix Research, Inc.

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US DOE Issues Request for Information on Hydrogen and Fuel Cell Market Development; Reports to Congress on Program

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Hydrogen produced by water electrolysis has the potential to be a useful means of storing excess electricity generated using wind, solar, and other intermittent renewable energy. Biogas, including anaerobic digester gas, can be reformed to produce hydrogen and used in a fuel cell to produce significant amounts of electricity and heat.

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