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A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gasemissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. EH&E) and Adjunct Professor of Environmental Health at Harvard’s T.H.
C2G emissions are a sum of WTW emissions and emissions associated with vehicle manufacturing. Using current technologies, all evaluated biofuel, battery electric, and hydrogen fuel cell vehicle pathways offer significant C2G GHG emissions reduction compared to the current gasoline internal combustion engine vehicle.
Blue Bird Corporation will offer a factory-certified electric repower program on select gasoline- and propane-powered Blue Bird school buses. The company is collaborating with Lightning eMotors to develop this repower electric vehicle (EV) powertrain system. Earlier post.) Earlier post.)
However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.
In a commentary in the journal Joule , Rob McGinnis, founder and and CEO of Prometheus , a company that is developing technology to remove carbon dioxide from the air and turn it into fuels, discusses the technology advances that could lead to the potential price-competitiveness of renewable gasoline and jet with fossil fuels.
In the first quarter of 2021, hybrid electric vehicles made up 18.4% Demand for electrically-chargeable cars also increased in Q1: battery-electric vehicles made up 5.7% Demand for electrically-chargeable cars also increased in Q1: battery-electric vehicles made up 5.7% Gasoline and diesel cars. Data: ACEA.
The SL 43 features an M139 in-line two-liter, four-cylinder gasoline engine with an electric exhaust gas turbocharger—used for the first time in a production vehicle. The turbocharger is operated via the 48-volt electrical system, which also feeds the belt-driven starter-generator (RSG).
Audi is adding a new member to its A3 family: the A3 Sportback 30 g-tron natural gas vehicle. Operation with natural gas or biomethane makes the compact model economical and more climate-friendly with low emissions. With full gas tanks, the car has an NEDC range of up to 495 (307.6 The A3 Sportback 30 g-tron 1.5
Increased economic activity and a changing fuel mix in the electric power sector in 2021 will lead to a significant increase in energy-related carbon dioxide emissions this year, according to the US Energy Information Administration’s (EIA) August Short-Term Energy Outlook (STEO). Gasoline prices averaged $3.14
The ICCT has conducted a comprehensive global and temporal life-cycle assessment of GHG emissions from a variety of alternative passenger car powertrains and fuels. The life-cycle GHG emissions of cars registered in 2021 are compared with those of cars expected to be registered in 2030.
Although all-electric vehicles (EVs) produce zero tailpipe emissions, there are upstream emissions of greenhouse gases from electricity production. Annual well-to-wheel emissions from a typical ev by state, 2015. West Virginia’s electricity production is 95.7% Source: DOE. Click to enlarge. Data: DOE.
In a recent open-access paper published in ACS’ Environmental Science & Technology , researchers from the University of York report that alcohols in windshield washer fluid account for a larger fraction of real-world vehicle emissions than previous estimates have suggested. Cliff et al. —Cliff et al.
by Michael Sivak, Sivak Applied Research The overall advantage of battery electric over gasoline vehicles, in terms of well-to-wheels emissions of greenhouse gases, has been well documented. However, the emissions of electric vehicles depend greatly on the energy source used to generate the electricity that powers them.
On this basis, and of Pareto efficiency, Emissions Analytics argues, until battery-electric vehicles can reach certain performance characteristics, government and industry support should switch immediately from EVs to full hybrids to create maximum welfare. The test cycle was made up of five repeats of the EQUA cycle, totalling 741 km.
The new VW Golf is now also available in certain markets with natural gas drive: the Golf TGI is equipped with a 1.5-liter liter four-cylinder engine with 96 kW / 130 PS and three natural gas fuel tanks. The tanks are integrated into the underbody and permit a range of around 400 kilometers (WLTP) in pure natural gas mode.
BMW i Ventures has invested in Prometheus Fuels ( earlier post ), a company removing CO 2 from the air and turning it into zero-net carbon gasoline that it will sell at gas stations, at a price that competes with fossil fuels, starting as early as this year. The effective upgrading of alcohols to gasoline, diesel, and jet fuels.
The US Environmental Protection Agency (EPA) released its 28 th annual Inventory of US Greenhouse GasEmissions and Sinks (GHG Inventory), which presents a national-level overview of annual greenhouse gasemissions from 1990 to 2019. CO 2 emissions decreased 2.2% Total GHG emissions in 2019 were up 1.8%
In 2024, a small electric SUV with a range of 300 miles produces 52% fewer life cycle greenhouse gas (GHG) emissions than a comparable gasoline vehicle. Electric vehicles (EVs) have no tailpipe emissions, but nearly three quarters of the GHG emissions for a gasoline vehicle come from the tailpipe (vehicle.
Other fuels that play a role in commercial trucking include gasoline (23%) and compressed natural gas (0.4%). Electric and other categories each register less than 1%. About 32% of all electric trucks nationwide are in California, where for every electric truck there are about 300 diesel trucks (all years, Classes 3-8).
A new University of Michigan study finds that making the switch to all-electric mail-delivery vehicles would lead to far greater reductions in greenhouse gasemissions than previously estimated by the US Postal Service (USPS). The Postal Service said in February that at least 10% of the new mail trucks would be electric.
The US Department of Energy (DOE) has published a Beyond Tailpipe Emissions Calculator that provides estimates of total greenhouse gas (GHG) emissions associated with driving an electric vehicle (EV) or plug-in hybrid electric vehicle (PHEV), including emissions from the production of electricity used to power the vehicle.
Average values for WTW GHG emissions for oil sands and other crudes, tight boundary. When the oil sands products refined in the United States are considered—a mixture of oil sands and lower-carbon blending components—the GHG emissions are, on average, 9% higher than the average crude processed in the US. Source: IHS CERA.
The results of the Life Cycle Assessment (LCA) of greenhouse gasemissions and primary energy demand of the cars tested by Green NCAP in 2022 show that the current and continuous trend towards larger and heavier cars, significantly increases the negative impact on climate and energy demand.
Total greenhouse gasemissions in the European Union (EU) decreased by 3.8% The large decline in emissions, achieved before the COVID-19 crisis, was mainly due to reduced coal use for power generation. This decrease brought EU emissions to 24.0% from 2018 to 2019.
greenhouse gasemissions were 6,472.3 from 2016, according to the US Environmental Protection Agency’s (EPA’s) latest Greenhouse Gas Inventory. The decrease in total greenhouse gasemissions between 2016 and 2017 was driven in part by a decrease in CO 2 emissions from fossil fuel combustion. Transportation.
Hyundai Motor Group will collaborate with the Saudi Arabian Oil Company (Aramco) and King Abdullah University of Science and Technology (KAUST) jointly to research and develop an advanced fuel for an ultra lean-burn, spark-ignition engine that aims to lower the overall carbon dioxide emissions of a vehicle.
Analysis of a study by S&P Global Mobility shows the number of new near-zero emission diesel trucks on the road in the US increased 10.2% Near-zero emission trucks are advanced diesel technology manufactured in the 2010 and later model years. are electric, and the remainder are gasoline or other fuels. are CNG, 0.3%
A team of researchers in China suggest that, in the context of promoting the use of clean fuel vehicles and increasing vehicle fuel efficiency, CO 2 emissions of China’s urban passenger transport sector could reach a peak of 225 MtCO 2 in 2030. A paper on their study appears in the journal Energy Policy. —Li and Yu.
The California Air Resources Board will conduct a public hearing 21 February to consider approving for adoption a proposed Zero-Emission Airport Shuttle regulation. For 2026 and later model years, heavy-duty ZEV airport shuttles will be required to certify to the proposed Enhanced Zero-Emission Powertrain Certification requirements.
Projects will work to lower emissions by leading the expansion of EV charging stations to facilitate the transition from fossil fuel-powered vehicles to electric vehicles. Fiscal Year 2021 Low Greenhouse Gas (GHG) Vehicle Technologies RD&D DE-FOA-0002475. Fully Electric Powered, Hydraulic Assisted, Compact Track Loader.
Researchers led by a team at Washington State University (WSU) have developed a unique and inexpensive nanoparticle catalyst that allows a solid-oxide fuel cell to convert logistic liquid fuels such as gasoline to electricity without stalling out during the electrochemical process. —Qusay Bkour, lead author. Gray, Steven R.
Based on preliminary economic activity and energy data, Rhodium Group estimates that greenhouse gas (GHG) emissions in the US slightly increased in 2022, rising 1.3% This reversal in 2022 was largely due to the substitution of coal with natural gas—a less carbon-intensive fuel—and a rise in renewable energy generation.
With alternative fuel vehicles now approaching 1% of new vehicle production, however, they are in fact beginning to have a “ measurable and meaningful impact ” on overall new vehicle fuel economy and CO 2 emissions. In the analysis, EPA uses overall fuel economy in mpg equivalent (mpge) and tailpipe CO 2 emission values.
In a paper being presented at WCX SAE World Congress Experience in Detroit this week, a team from MIT is proposing the use of a flex-fuel gasoline-alcohol engine approach for a series-hybrid powertrain for long-haul Class 8 trucks. We think that the way to enable the use of electricity in these vehicles is with a plug-in hybrid.
Neste, the world’s leading producer of renewable diesel and sustainable aviation fuel (SAF), is beginning the final phase of testing of a renewable gasoline for drop-in commercial use in the existing fleet. The EU recently increased its target for the reduction of the greenhouse gasemissions by at least 55% by 2030.
These include fully-electric systems, as well as a gasoline-generated EV system (known as e-POWER at Nissan, earlier post ) in which a gasoline engine generates electrical power stored in a battery (series hybrid), which can then be delivered to all four wheels through a pair of high-output electric motors.
A small electric SUV with 300 miles of range produces 52% fewer life-cycle greenhouse gasemissions than a comparable gasoline vehicle, according to the U.S. Greenhouse gasemissions from production and distribution are currently around double that of gasoline production and distribution, the DOE notes, but that's more.
Southern California Gas Co. SoCalGas) will demonstrate a combination of technologies that will produce hydrogen from renewable natural gas (RNG) at SunLine Transit Agency’s hydrogen fueling station in Thousand Palms, California. The demonstration project will integrate two core technologies.
A strategy of introducing E30 fuel and gradually shifting from E15 to E30 consumption will have appreciable environmental effects due to reductions in greenhouse gasemissions. The slow turnover of vehicles currently on the road requires the proposal of immediate solutions compatible with the present infrastructure and engine design.
The US Energy Information Administration (EIA) forecasts that US energy-related carbon dioxide (CO 2 ) emissions will decline by 11% in 2020. In EIA’s latest Short-Term Energy Outlook , US energy-related CO 2 emissions are forecast to fall more than the 5% decline in gross domestic product (GDP) in 2020. Source: U.S.
accounting for the emissions generated during production of the vehicle and the fuel. To derive the emissions figure, T&E said that it made a number of assumptions for their calculations: The average gasoline lifetime driving distance of 175,000 km (108,740 miles) is taken as the starting point. l/100 km (37.3 mpg US) and 7.1
XL plug-in hybrid electric (PHEV) Ford F-150 pickup trucks improve fuel consumption by up to 50% and reduce CO 2 emissions by one-third when compared to their standard gasoline-powered vehicles. For example, Washington’s goal is to reduce greenhouse gasemissions to 25% below 1990 levels by 2035.
liter, direct and port fueled injection, inline 4-cylinder gasoline engine commonly used in the Camry line of vehicles. The “Dynamic Force Engine” achieves one of the world’s best thermal efficiencies of 40% in gasoline powered vehicles according to Toyota.
Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. This enables further reduced fuel consumption and emission levels plus powerful torque even at low engine speeds. Compared with other gasoline engines, the intake valves of the 1.5
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