article thumbnail

EPA: preliminary data show average fuel economy of new light-duty vehicles reached a record high of 25.7 MPG in 2020

Green Car Congress

The period from 1975–1987 was marked by a rapid increase in average fuel economy, followed by a gradual decrease in fuel economy from 1988–2004. Conversely, truck SUVs reached a record 37% of the market in model year 2019, car SUVs reached a record 12% of the market, and pickups have increased in recent years to 16% of the market.

article thumbnail

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

Green Car Congress

Future plans call for commercialization of the technology and development of an industrial demonstration plant at 10 MW of electricity. 2004) Development of a Supercritical Carbon Dioxide Brayton Cycle: Improving PBR Efficiency and Testing Material Compatibility ( INEEL/EXT-04-02437 ). Final Report ( INL/EXT-06-01271 ).

article thumbnail

USDA: US corn-based ethanol reduces GHG emissions by 43% compared to gasoline, with additional benefits projected through 2022

Green Car Congress

Unlike other studies of GHG benefits, which relied on forecasts of future ethanol production systems and expected impacts on the farm sector, this study reviewed how the industry and farm sectors performed over the past decade to assess the current GHG profile of corn-based ethanol.

Gasoline 150
article thumbnail

Wisconsin, GLBRC researchers use chemical genomics to engineer IL-resistant yeast to improve biofuel production

Green Car Congress

This guided them in successfully engineering the new strain of yeast that not only shows resistance to ionic liquids but also improves sugar conversion and biofuel production. The technique of chemical genomics-guided bio-design is novel, and rich in potential for future applications.

Wisconsin 150
article thumbnail

The Real Reason for USA based Economic Recessions.

DIY Electric Car

During 2006 Oil was trading around $60/Barrel for most of that year going up and down but for the most part the oil price had been trending up since 2004?.but During 2004 and into 2006 the Federal Reserve was acting in the best interest of the American People by trying to control inflation. but gradually. tightening? About the Author.

USA 180
article thumbnail

New Study Concludes Substantial Quantities of Greenhouse Gas Emissions from Land-Use Change in the Boreal Forests for Oil Sands Production Are Unreported

Green Car Congress

What we found is an astonishing volume of present and projected future greenhouse emissions due to the conversion of biocarbon to carbon dioxide and methane. megatonnes of CO 2 eq in 2004, 35.8 Peter Lee, lead author of the report and Executive Director of Global Forest Watch Canada. megatonnes. megatonnes CO 2 eq in 2020.

Oil-Sands 191
article thumbnail

EPA Posts Peer Review of Renewable Fuel Standards Lifecycle Analysis

Green Car Congress

ICF International, an independent third-party contractor, coordinated the peer reviews which were conducted on four areas of the lifecycle assessment that in particular charted new ground, according to EPA: Land use modeling (use of satellite data/land conversion GHG emission factors). EPA’s approach to valuing future GHG emissions (e.g.,

EPA 150