Green Car Congress  
Go to GCC Discussions forum About GCC Contact  RSS Subscribe Twitter headlines

Researchers find Nissan LEAF creates less CO2 than Toyota Prius hybrid in west US and Texas, but more in N. Midwest

1 July 2015

Regionally specific lifecycle CO2 emissions per mile traveled for plug-in hybrid electric vehicles (PHEVs) and battery electric vehicles (BEVs) in the US can vary widely based on grid emission factors (i.e., the “carbon footprint” of electricity production and use), according to a new study by researchers at Carnegie Mellon University. Under some conditions, the battery electric Nissan LEAF can produce higher emissions than a Toyota Prius hybrid. The paper is published in the ACS journal Environmental Science & Technology.

The team characterized the vehicle emissions across the United States under alternative assumptions for regional electricity emission factors, regional boundaries, and charging schemes. Among the findings were that:

Continue Reading “Researchers find Nissan LEAF creates less CO2 than Toyota Prius hybrid in west US and Texas, but more in N. Midwest”

Comments (2)

CMU policy briefs outline benefits and potential for adoption of electrified vehicles in the US

1 July 2015

Researchers at Carnegie Mellon University (CMU) have published two new policy briefs, along with accompanying videos, about the benefits of electrified vehicles and the potential for their adoption in the US. The briefs condense the findings of a number of recent papers coming out of the CMU group led by Professor Jeremy Michalek.

The first—“Electric Vehicle Benefits and Costs in the United States”—shows that the benefits of vehicle electrification vary based on vehicle type; driving style; climate; how supplying electricity is generated; and time of charge. To achieve the best outcomes, the brief suggests, plug-in vehicle adoption should typically be focused on HEVs and PHEVs by city drivers in mild-climate regions with a clean electricity grid, such as San Francisco or Los Angeles. Further, drivers should not be encouraged to charge at night in coal-heavy regions.

More... | Comments (2)

Toyota, Nissan and Honda agree on details of H2 station support in Japan

1 July 2015

Toyota Motor Corporation, Nissan Motor Co., Ltd., and Honda Motor Co., Ltd. have agreed on key details of their joint support project for the development of hydrogen station infrastructure in Japan. (Earlier post.) The joint project (conducted alongside the Japanese government’s support for hydrogen stations) will cover one-third of the hydrogen station operating expenses incurred by infrastructure companies, and was first announced on 12 February.

Annual financial support per station is limited to ¥11 million (US$89,000). (The annual limit is ¥13 million (US$106,000) where two or more mobile stations are operated.) The partners envision funding support until around 2020. 100 hydrogen stations will be constructed initially, with a gradual increase expected thereafter. The total value of the support is estimated at around ¥5-6 billion (US$41-$49 million).

More... | Comments (1)

Study of size-dependent properties of Mg nanoparticles in H2 storage suggests path to better performance; potential for better on-board tanks

1 July 2015

Although magnesium hydride (MgH2) is a promising solid-state hydrogen storage material, its slow hydrogen sorption kinetics have limited its application. Recent studies have shown, however, that with smaller Mg particles, the sorption kinetics improve. Since volume change during sorption generates stress, leading in turn to plastic deformation, the fundamentals of the mechanical deformation of the Mg particles are a significant issue.

Now, researchers from China and the US, including a colleague from GM R&D, have used in situ transmission electron microscopy to elucidate the size-dependent mechanical properties of Mg nanoparticles used for hydrogen storage. The team tested different sized nanoparticles to gauge their mechanical properties and discovered lessons on how one might engineer the nanoparticles to improve their performance. Their paper is published in the journal Applied Physics Letters.

More... | Comments (0)

BMW Group and NTU Singapore launch US$965K electromobility research program; Electromobility in Asia and Smart Materials

1 July 2015

BMW Group and Nanyang Technological University (NTU Singapore) launched a new electromobility research program, involving the all-electric BMW i3 and plug-in hybrid sports car BMW i8. This new research program will be conducted at the Future Mobility Research Lab located on the NTU campus, which is the BMW Group’s first joint lab in Southeast Asia.

Both parties will be injecting a combined S$1.3 million (US$965,000) to drive the new research projects, on top of the initial S$5.5 million (US$4.1 million) funding allocated to the joint lab in 2013. The new research program will focus on two new areas, Electromobility in Asia and also Smart Materials. This is in addition to the original three research topics on which the joint lab is already working: Advanced Battery; Driver Enhancement; and Intelligent Mobility.

More... | Comments (0)

Mercedes-Benz sets Pikes Peak diesel record with near-production C 300 d

30 June 2015

Mercedes-Benz has set a new record for the diesels in the Pikes Peak hill-climb race with a near-production C 300 d 4MATIC. Test driver Uwe Nittel completed the 19.99 km (12.4-mile) route—which includes 156 bends with a change in altitude of 1439 meters (4,721 feet)—in just 11.37 minutes.

The 150 kW (204 hp) C 300 d 4MATIC (in Europe known as 250 d) fitted with a 7G-TRONIC PLUS automatic transmission competed in the hill-climb race in largely series-production configuration. As is customary for a racing car, the interior was cleared out. The modifications included the safety measures required by the regulations, such as a roll-over cage, racing tank, fire extinguishing system, enhanced brakes and ultra-high-performance tires (UHP).

More... | Comments (2)

Skeleton Technologies launches new range of high-performance ultracapacitors; up to 111 kW/kg and 9.6 Wh/kg; hybrid truck application coming

30 June 2015

Skeleton Technologies (earlier post) has launched a new range of cylindrical ultracapacitors that offers specific power performance of up to 111 kW/kg (SC450, 450F) and specific energy up to 9.6 Wh/kg (SC4500, 4500F) with ESR as low as 0.075 mΩ (SC3000, 3000F)—the highest performance cylindrical cell ultracapacitors in the market.

Through the use of its patented graphene material, the new series features a capacitance of up to 4500 farads (the SC4500 cell). By contrast, the closest competitor product has a capacitance of 3400 farads. Skeleton claims this is the single biggest increase in energy density for ultracapacitors in the past 15 years.

More... | Comments (5)

United Airlines invests $30M in Fulcrum BioEnergy; renewable jet fuel offtake agreement, potential joint development of production

30 June 2015

United Airlines made a $30-million equity investment in US-based Fulcrum BioEnergy, Inc., the developer of a process for converting municipal solid waste into low-cost sustainable aviation biofuel. (Earlier post.) The investment is so far the largest single investment by a US airline in alternative fuels.

In addition to the equity investment, United and Fulcrum have entered into an agreement that contemplates the joint development of up to five projects located near United’s hubs expected to have the potential to produce up to 180 million gallons of fuel per year.

More... | Comments (1)

The Automotive Research Center at the University of Michigan’s Annual Program Review: The Driving Force Behind Autonomous Vehicles

30 June 2015

by James Garay, ARC

In the fall of 1994, the U.S. Army Tank Automotive Command (TACOM) awarded MEAM [Mechanical Engineering and Applied Mechanics] a three-year, $7.5-million research grant to establish an Automotive Research Center (ARC) at the U-M.1

Twenty-one years later, the ARC, which operates as a consortium of six universities[2] collaborating with partners from both industrial and government sectors, gathered once again on the University of Michigan’s North Campus for its 21st Annual Program Review. Professionals representing each of the three aforementioned domains (academia, government, industry) comprised the event’s nearly 300 attendees.

More... | Comments (0)

New operando technique shows atomic-scale changes during catalytic reactions in real-time; applications for batteries and fuel cells

30 June 2015

A new technique developed by a team of researchers led by Eric Stach at Brookhaven National Laboratory and Anatoly Frenkel at Yeshiva University reveals atomic-scale changes during catalytic reactions in real time and under real operating conditions. An open access paper on the work is published in the journal Nature Communications.

The team used a new microfabricated catalytic reactor to combine synchrotron X-ray absorption spectroscopy and scanning transmission electron microscopy for an unprecedented portrait of a common chemical reaction. The results demonstrate a powerful operando—i.e., in a working state—technique that is generalizable to quantitative operando studies of complex systems using a wide variety of X-ray and electron-based experimental probes. This may have a tremendous impact on research on catalysts, batteries, fuel cells, and other major energy technologies.

More... | Comments (0)

Tire-integrated triboelectric generator harvests electricity from rolling tire friction; est. up to +10% fuel econ

30 June 2015

A group of University of Wisconsin-Madison engineers and a collaborator from China have developed a triboelectric nanogenerator (TENG) that harvests energy from a car’s rolling tire friction. An innovative method of reusing energy, the nanogenerator ultimately could provide automobile manufacturers a new way to squeeze greater efficiency out of their vehicles.

The TENG is a novel energy harvesting device to convert mechanical energy into electricity based on the universally known triboelectric principle—i.e., the generation of an electric charge resulting from the contact or rubbing together of two dissimilar objects. Specifically, the nanogenerator relies on the triboelectric effect to harness energy from the changing electric potential between the pavement and a vehicle’s wheels.

More... | Comments (3)

4 more cities sign Global Clean Bus Declaration raising total to >40K ultra-low emission buses by 2020; London to trial BYD electric double-decker

30 June 2015

Four additional cities—Amsterdam, Lima, Catalonia (Barcelona) and Rome—signed up to the Global Clean Bus Declaration at the 1st global Clean Bus Summit in London.

The Global Clean Bus Declaration, developed by the Mayor of London Boris Johnson in partnership with the C40 Cities Climate Leadership Group, launched in Buenos Aires in March 2015 with 20 original signatories. Bus manufacturers including BYD, Volvo, Wright Bus, Optare, Mercedes, Evo Bus, and Alexander Dennis attended the London summit and committed to supporting cities in delivering fleets of new ultra-low emission buses. The World Bank and Green Investment Bank have also signed up to this commitment.

More... | Comments (2)

Green Car Congress © 2015 BioAge Group, LLC. All Rights Reserved. | Home | BioAge Group

Other Recent Items...
Audi launches next-gen A4 with new Millerized TFSI engine; g-tron model w/ Audi e-gas
29 June 2015  | Com. (2)
Volkswagen announces successful completion of 2-year drop-in renewable diesel evaluation with Solazyme and Amyris
29 June 2015  | Com. (0)
DOE to award $20M to projects to recover rare earth elements from coal and coal byproducts
29 June 2015  | Com. (2)
Opinion: Why Buffett Bet A Billion On Solar: Miles Per Acre Per Year
29 June 2015  | Com. (31)
Mercedes-Benz increases engine range for refreshed A Class compact
28 June 2015  | Com. (0)
New Samsung silicon anode with graphene boosts volumetric capacity of LiCoO2 Li-ion cell 1.5x after 200 cycles; gravimetric capacity the same
27 June 2015  | Com. (2)
LanzaTech gas fermentation technology at core of €14.6M EU Steelanol project; 25K t/year demo plant
26 June 2015  | Com. (0)
Volkswagen AG coordinating new €6M EU research project on drop-in biocatalytic solar fuels
26 June 2015  | Com. (3)
California ARB approves $373M funding plan for advanced vehicle technologies in FY2015-2016; up from $150M last year
26 June 2015  | Com. (0)
New lifecycle analysis of WTW GHG emissions of diesel and gasoline refined in US from Canadian oil sands crude
26 June 2015  | Com. (7)
LowCVP: 5 Ps for influencing uptake of low emission vehicles at local level
26 June 2015  | Com. (0)
Chevrolet introduces new Cruze; new 1.4L EcoTec turbo; new 1.6L diesel coming to US in 2017
25 June 2015  | Com. (4)
Germany’s CONVERGE project presents results; architecture of cooperative systems for future mobility
25 June 2015  | Com. (0)
Alphabet Energy introduces PowerModules for modular thermoelectric waste heat recovery; partnership with Borla for heavy-duty trucks
24 June 2015  | Com. (2)
Ford Smart Mobility shifts from research to implementation; company announces new programs, next areas of focus
24 June 2015  | Com. (0)
Navigant forecasts global smart urban mobility market to hit $25.1 billion in 2024
24 June 2015  | Com. (0)
NREL: battery second use offsets EV expense, improves grid stability; recommendations
24 June 2015  | Com. (4)
Opinion: Expect A Wave Of Consolidation In The Oil Industry
24 June 2015  | Com. (1)
Stanford team develops new low-voltage single-catalyst water splitter for hydrogen production
23 June 2015  | Com. (16)
DOE CEMAC report examines US opportunities in automotive Li-ion batteries
23 June 2015  | Com. (0)
IH2 technology licensed for demonstration plant to convert woody biomass into drop-in hydrocarbon transportation fuels
23 June 2015  | Com. (5)
Ford assessment of two cylinder deactivation strategies for award-winning 3-cyl. EcoBoost
23 June 2015  | Com. (2)
Jaguar Land Rover’s Sixth Sense R&D: monitoring driver heart rate, respiration and brain activity to reduce accidents
23 June 2015  | Com. (0)
BorgWarner R2S two-stage turbo boosts performance of new top-end Ford 2.0L diesel
22 June 2015  | Com. (2)
24M emerges from stealth mode with new semi-solid Li-ion cell; <$100/kWh by 2020
22 June 2015  | Com. (22)
Volvo Trucks approves 100% renewable diesel for all Euro 5 engines, prepping certification for Euro 6
22 June 2015  | Com. (0)
Saft to provide 800 kWh Li-ion system for hybrid ferry
22 June 2015  | Com. (0)
Toho Tenax’s prepreg helps to cut 1.1MW Tajima Rimac electric racer’s weight
22 June 2015  | Com. (2)
New PSA 1.2-liter 3-cylinder turbo takes International Engine of Year category award
22 June 2015  | Com. (3)
Boeing ecoDemonstrator 757 expands testing; green diesel blend, energy harvesting windows, 3D-printed flight deck component
20 June 2015  | Com. (0)
EPA and NHTSA propose Phase 2 GHG and fuel efficiency standards for medium- and heavy-duty trucks
19 June 2015  | Com. (0)
Toyota unveils new diesels with advanced thermal insulation combustion; 15% more fuel efficient, 25% more torque; 44% thermal efficiency
19 June 2015  | Com. (47)
NRC report finds Federal analysis to set LD CAFE and GHG standards generally of high quality; some technologies and issues should be re-examined
19 June 2015  | Com. (0)
DOE to issue incubator funding opportunity to help advance bioenergy development; algal biofuels a main focus
19 June 2015  | Com. (0)
ARPA-E awards $55M to 18 projects in two new programs: TERRA for transportation energy and GENSETS for distributed generation
19 June 2015  | Com. (0)
Reducing the weight of the 2016 Malibu
18 June 2015  | Com. (3)
Etihad Airways and partners launch roadmap for sustainable aviation biofuels in UAE
18 June 2015  | Com. (0)
Free piston/ORC system for automotive waste heat recovery being tested at University of Brighton
18 June 2015  | Com. (0)
Mercedes-Benz premieres 2nd generation GLC and plug-in hybrid GLC 350 e 4MATIC
18 June 2015  | Com. (0)
National Marine Manufacturers Association endorses use of isobutanol in marine fuel market
18 June 2015  | Com. (2)
Dahn Lab at Dalhousie signs exclusive 5-year research partnership with Tesla, beginning in 2016
18 June 2015  | Com. (1)
Researchers find synergy between lithium polysulfide and lithium nitrate as electrolyte additives prevent dendrite growth on Li metal anodes
17 June 2015  | Com. (2)
BMW wins overall International Engine of Year 2015 for hybrid drive system in i8 PHEV
17 June 2015  | Com. (4)
GM to premiere new efficient 1.4L turbo at Frankfurt IAA
17 June 2015  | Com. (2)
PSA Peugeot Citroën and Bolloré Group sign strategic cooperation agreement on Bluesummer EV and car sharing
17 June 2015  | Com. (2)
DDFlyTrain flywheel hybrid technology to deliver around 10% fuel savings, rapid ROI
17 June 2015  | Com. (2)
Opinion: The Dark Side Of The Shale Bust
17 June 2015  | Com. (4)
Automakers develop consensus list of priority locations for next 19 H2 fueling stations in California
16 June 2015  | Com. (34)
New catalytic method for converting algal oil to gasoline- or jet-fuel-range hydrocarbons
16 June 2015  | Com. (0)
Joule issued patent on production of medium chain-length alkanes from sunlight and CO2; diesel, jet fuel and gasoline
16 June 2015  | Com. (2)
Jaguar Land Rover showcases remote-control and autonomous 180˚ turn technologies
16 June 2015  | Com. (0)
New generation GKN Hybrid Power flywheel hybrid system for Audi R18 e-tron
16 June 2015  | Com. (5)
EBI ketone condensation process for drop-in jet fuel or lubricant base oil from biomass; up to 80% lifecycle GHG savings
16 June 2015  | Com. (0)