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CMU study finds that coal retirement is needed for EVs to reduce air pollution

Green Car Congress

Electric vehicles charged in coal-heavy regions can create more human health and environmental damages from life cycle air emissions than gasoline vehicles, according to a new consequential life cycle analysis by researchers from Carnegie Mellon University. UC stands for uncontrolled charging and CC stands for controlled charging.

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EIA projects decline in transportation sector energy consumption through 2037 despite increase in VMT, followed by increase

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Specifically, AEO2019 projects that: Increases in fuel economy standards temper growth in US motor gasoline consumption, which decreases by 26% between 2018 and 2050. trillion miles in 2018 to 3.5 trillion miles in 2018 to 3.5 However, US coal shipments, which are primarily via rail, decline slightly.

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CMU study finds controlled EV charging can reduce generation cost, but at greater health and environmental costs depending upon the generation mix

Green Car Congress

Results from the study also suggest that with sufficient coal plant retirement and sufficient wind power, controlled charging could result in positive net benefits instead of negative. A paper describing the work is published in the ACS journal Environmental Science & Technology. other parts of the US and the world could be different.

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Australia Goes All-in on Green Hydrogen

Cars That Think

And while coal plants still supplied over half of Australia’s power in 2021, change is afoot. The 124-megawatt solar plant adjacent to Korea Zinc’s Townsville refinery, completed in 2018, cut a quarter of the coal-heavy grid power it had been using to run its power-intensive electrolytic process. Why a hydrogen truck?

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EIA: light duty vehicle energy consumption to drop 25% by 2040; increased oil production, vehicle efficiency reduce US oil and liquid imports

Green Car Congress

LDVs powered by fuels other than gasoline, such as diesel, electricity, or E85, or equipped with hybrid drive trains, such as plug-in hybrid or gasoline hybrid electric, increase modestly from 18% of new sales in 2012 to 22% in 2040. LDV energy consumption declines in AEO2014 Reference case from 16.0 quadrillion Btu in 2012 to 12.1

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How to Prevent Blackouts by Packetizing the Power Grid

Cars That Think

Spiking demand for electric heat collided with supply problems created by frozen natural-gas equipment and below-average wind-power production. Second, conventional coal and nuclear plants are being retired for economic and policy reasons, removing stable sources from the grid. unprecedented and deadly winter freeze.