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Why EVs Aren't a Climate Change Panacea

Cars That Think

“Electric cars will not save the climate. This is due to the 30 to 40 percent increase in emissions EVs create in comparison to manufacturing an ICE vehicle, mainly from its battery production. Behavioral change is hard How willing are people to break their car dependency and other energy-related behaviors to address climate change?

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Study finds total greenhouse gas footprint of blue hydrogen “quite high” due to fugitive methane

Green Car Congress

Our analysis assumes that captured carbon dioxide can be stored indefinitely, an optimistic and unproven assumption. Even if true though, the use of blue hydrogen appears difficult to justify on climate grounds. —Howarth and Jacobson.

Hydrogen 414
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Consortium proposes large-scale industrial cultivation of marine microalgae (ICCM) as solution to global energy, food, and climate issues

Green Car Congress

Members of the Marine Algae Industrialization Consortium (MAGIC), led by Duke University in North Carolina, have published an open-access paper in the journal Oceanography presenting the large-scale industrial cultivation of marine microalgae (ICMM) as an answer to pressing global energy, food and climate security issues. Greene et al.

Mariner 150
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Study: Energy sorghum may combine best of annual, perennial bioenergy crops

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The researchers conducted ecosystem-scale comparisons of carbon, nitrogen, water, and energy fluxes of Sorghum bicolor with maize and Miscanthus x. Maize, on the other hand, is highly productive but requires a great deal of water and nitrogen, and it loses carbon stored in its ecosystem through harvesting and tilling.

Energy 321
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Proposed CA LCFS pathways for corn starch ethanol with carbon capture and sequestration: as low as 37 gCO2e/MJ

Green Car Congress

RTE recently performed a detailed assessment of engineering designs for capturing, transporting and storing CO 2 , and integrating CCS with ethanol production. By comparison , the pathways without CCS ETCH21 (DDGS) has a CI of 82.30 CI = 37 gCO 2 e/MJ. gCO 2 e/MJ; ETCH219 (MDGS) has a CI of 76.46 gCO 2 e/MJ.

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Audi to introduce entry-level e-tron model with smaller battery pack, less range

Green Car Congress

By comparison, the 55 quattro features a 95 kWh battery with up to 255.4 These store up to 71 kWh of energy, which is delivered via a newly calibrated drivetrain and a high voltage system featuring additional optimisations for this application, and facilitate a range of up to 186 miles in the WLTP cycle.

Audi 191
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Penn State team devises new control strategy to enhance EV battery performance when driving in cold temperatures

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Comparison of energy balance between the “Battery Heating While Driving” case and the base case during simulated US06 drive cycle tests at −40 °C. The team found self-heating while driving to be very energy-efficient and fast, with the heating energy supplied from both stored battery energy and vehicle braking energy. Zhang et al.

Batteries 186