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Net emissions resulting from the use of plug-in hybrid electric vehicles (PHEVs) depend on the efficiency of the conventional vehicle fleet; PHEV CD (all-electric, charge-depleting mode) efficiency; charging strategy; battery pack capacity; driving patterns; and generator mix used for charging. Scott Peterson, J. emissions.
WTW GHG emissions of vehicles across driving patterns and PHEV charging scenarios. coal, hydro, natural gas) on well-to-wheel (WTW) energy use and greenhouse gas (GHG) emissions of plug-in hybrid electric vehicles (PHEVs). Driving patterns affect the WTW performance of PHEVs in two ways, they found. Click to enlarge.
In a new study published in the journal Applied Energy , Carnegie Mellon University (CMU) researchers found that controlled charging of plug-in hybrid electric vehicles (PHEVs) reduces the costs of integrating the vehicles into an electricity system by 54–73% depending on the scenario.
Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. million vehicles and would have increased by 3 tpd from power plants.
Strategies to promote adoption of hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs) with small battery packs offer more social benefits (i.e., We find that, in the base case, plug-in vehicles (PHEVs and BEVs) may produce more damage on average than today’s HEVs. Michalek et al. Click to enlarge.
The environmental benefit of a large-scale deployment of plug-in hybrid electric vehicles (PHEVs) in the Canadian province of Alberta could vary significantly, ranging from a 40% to a 90% reduction in greenhouse gases, according to a study by electrical engineers at the University of Calgary’s Schulich School of Engineering. Mahdi Hajian.
One of the common arguments you hear from people in America who are not fans of the idea of electric vehicles is that they are mostly charged from electricity produced from coal power plants. Heavy Coal Using States Accounted for Only 10% of EV Sales in 2020. The argument that EVs are powered mostly from coal simply isn’t true.
life-cycle study of three Li-ion battery chemistries for plug-in hybrid (PHEV) and battery-electric (BEV) vehicles generated a number of findings and identified opportunities for improving the environmental profile of Li-ion batteries for use in plug-in and electric vehicles. Results by battery chemistry and stage for PHEV batteries.
Developing technologies for the conversion of biomass and coal-to-liquid fuels. By 2035, cellulosic ethanol and/or coal-and-biomass-to-liquid (CBTL) fuels with carbon capture and storage could replace about 15% of current fuel consumption in the transportation sector (1.7–2.5 emissions, according to the report.
Compared to an internal combustion vehicle fueled with gasoline, PHEVs that employed petroleum fuels (gasoline and diesel) offered a 40-60% reduction in petroleum energy use and a 30-60% reduction in GHG emissions. PHEVs fueled by E85 offered a 70-90% reduction in petroleum energy use and a 40-80% reduction in GHG emissions.
A ccording to John O'Dell for Edmunds.com : "Chelsea Sexton, executive director of Plug In America , an advocacy group for PHEVs, has deeper concerns, though, maintaining that the story " borders on the irresponsible , ignoring the full picture and cherry-picking negative facts from different studies in order to prove a point that doesn't exist."
This is especially important for assessing the GHG emissions of PHEVs. For battery EVs, the GHG emissions for “fuel/electricity” production are dominated by the coal and natural gas used in electricity generation. This study uses recent data on industrial-scale battery production and considers regional battery supply chains.
The team compared the WTW results of the analysis of current vehicle WTW technologies to a number of advanced vehicle architectures including both a grid-independent HEV without plug-in capabilities and a PHEV (plug-in HEV) with a 20 mile (PHEV 20) and 40 mile (PHEV 40) all-electric range; a SI ICE, and a CNG engine.
The PHEV (Plug-in Hybrid Electric Vehicle), a subset of the electric car, combines a primary electric motor with a much smaller back-up engine fueled with a hydrocarbon/biofuel mix. (In In this paper PHEV refers solely to the long-range PHEV of 60 miles (100 km) electric-only range.) It is much more than that.
The program commits city departments to the leasing of pure battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) to replace aging city vehicles, including those with conventional internal combustion engines. The LADWP will lease 44 BEVs and 113 of the PHEVs. per mile for EVs vs. $0.37
Compare GHG emissions and costs of PHEV and BPEV with those of regular cars. that gasoline engine-generators in SHEVs and PHEVs have the same efficiency relative to diesel. Building on the SHEV drivetrains, they assumed PHEVs with an electric range of 50 km (31 miles) and. TCO of future wheel motor PHEV may. We therefore.
They also note that large-scale production of synthetic fuels or hydrogen from coal or gas offers the potential for GHG emissions reduction—but only if CO 2 can be captured and stored. High quality diesel fuel can be produced from natural gas (GTL) and coal (CTL). ICE-based vehicles and fuels.
WTW energy demand and GHG emissions for EV and PHEV drivetrains for various electricity sources; gasoline ICE vehicle is solid square, hybrid the hollow square. A critical electricity mix can be identified which divides optimal drivetrain performance between the BEV, PHEV and ICE vehicle. Click to enlarge.
The same commute in a plug-in hybrid electric vehicle (PHEV), meanwhile, would take a whopping 318 gallons. But wait, aren’t PHEVs the environmentally friendly choice ? “If Water Supply, Researcher Says By Jennifer Bogo Popular Mechanics March 7, 2008 "A 30-mile commute in a gasoline-powered car would require the withdrawal of 18.9
Increased sales for hybrids and PHEVs. An industrial capital expenditure and fuel price adjustment for coal and residual fuel has been applied to reflect risk perception about the use of those fuels relative to natural gas. Energy consumption by LDVs (including commercial light trucks) declines in the Reference case, from 16.1
Power and Associates estimates combined global sales of hybrid-electric vehicles (HEVs), plug-in hybrid-electric vehicles (PHEVs) and battery-electric vehicles (BEVs) will total 5.2 Global HEV, PHEV and BEV sales in 2010 are forecasted to total 954,500 vehicles, or 2.2% million units in 2020, or some 7.3% million units (about 5.5%
The crop-to-electricity conversion model assumes that half of the biomass is converted in biomass boilers and the other half is co-combusted with coal to generate electricity. A 150 km (93-mile) -range BEV model was derived by increasing the battery size in the PHEV model.
Primary energy sources in model include fossil fuels (crude oil, natural gas, and coal); non-renewable non-fossil sources (nuclear); and renewable sources (hydroelectric, wind, solar, and biomass). The team used a model (Global Energy Transition, GET-RC 6.1)
CNG vehicles may emit less CO 2 per km than electric vehicles (EV) and plug-in hybrid vehicles (PHEV), depending on the fuels used to produce electricity. In 2020, CNG cars are expected to emit less CO 2 per km than PHEVs in all the regions shown in Figure 3.7, assuming 10% of the vehicle-kilometres of PHEVs is electrically driven.
O ften when I talk about Plug-Ins , I say that PHEV's are a perfect embodiment of the 80-20 rule. But in the case of the PHEV , the logic goes something like this: Roughly 80% of our daily trips are under 35 miles. Here's a piece of it: Why do PHEVs reduce greenhouse pollution ? And the remaining 20% are longer trips.
However, US coal shipments, which are primarily via rail, decline slightly. California’s Zero-Emission Vehicle regulation, which nine additional states have adopted, requires a minimum percentage of vehicle sales of BEV and PHEV. Freight rail ton-miles grow by 20% during the same period, led primarily by rising industrial output.
GREET 2020 updates the specific energy and bill-of-materials (BOMs) of lithium-ion batteries (LIBs) for electric vehicles (EVs), including battery electric vehicles (BEVs), hybrid electric vehicles (HEVs), and plug-in electric vehicles (PHEVs). There is also a new LIB cathode chemistry, LiNi 0.5 O 2 (NMC 532).
Estimated difference in life cycle GHG emissions (gCO 2 eq mi −1 ) of selected plug-in electric vehicles (2013 Nissan Leaf BEV, 2013 Chevrolet Volt PHEV, and 2013 Prius PHEV) relative to selected gasoline vehicles (2010 Prius HEV and 2014 Mazda 3). Chevy Volt PHEV (EREV). Toyota Prius PHV PHEV (blended). Yuksel et al.
This would require an extremely rapid build-up of the EV + PHEV parc, to reach 75% by the same date. To get there means that 90% of new vehicle sales would have to be EV + PHEV by 2030. Blow the tops off all those mountains in Appalachia, burn that coal! This is plainly unrealistic.
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.
of respondents believe hybrids and plug-in hybrid electric vehicles (PHEVs) are the most appealing to consumers overall. Respondents predict that coal will remain the primary energy source for EVs in 2020 (28.9%), followed by Fossil fuel/oil (21.4%). Nearly 68.8%
Lifecycle GHG emissions per km for different powertrain types (ICEV, LW-ICEV HEV, PHEV, and BEV) in selected counties. The values in the boxes are the percent of counties where HEVs/PHEVs/BEVs have less emissions (blue box), similar (±5%) emissions to ICEV comparator (white box), or more emissions than the ICEV comparator (light orange).
While non-fossil fuels are expected to account for half of the growth in energy supplies over the next 20 years, the Outlook projects that oil and gas, together with coal, will remain the main source of energy powering the world economy, accounting for more than 75% of total energy supply in 2035, compared with 86% in 2015.
Applications are sought to develop electrochemical energy storage technologies that support commercialization of micro, mild, and full HEVs, PHEVs, and EVs. It is also being tested for stationary source applications such as remote power supplies (gensets) and coal-fired power plants.
For the study, they define EVs as including both battery-electric (BEV) and plug-in hybrid electric (PHEV) vehicles. Alternatively if PHEVs comprise 90% of EVs, the ?TCE With linking at the 10% RES level, total GHG emissions are about the same with EVs as without. TCE of $40/vehicle- year with 100% EVs assumes 90% of EVs are BEVs.
DOE will focus on partial electrification because hybrid electric (HEVs) and plug-in hybrid electric (PHEVs) can access existing infrastructure. The greenhouse gas emissions of gas-to-liquids (GTL), coal-to-liquids (CTL), and coal-and-biomass-to-liquids (CBTL) without carbon capture outweigh the potential benefits for petroleum displacement.
With the current fuel mix of the US power sector (about half coal, about 30% “carbon-free”), CO 2 emissions for HEVs and EVs are similar. The analogous progression for CO 2 emissions is less clear. —Deutch and Moniz. Deutch and Moniz note that manufacturing is key to achieving a commercially successful EV battery pack—i.e.,
High-temperature, high-strength, lower-cost permanent magnets (PMs) are needed for traction motors for HEVs and PHEVs. Applications are sought that use new materials and designs that allow better heat transfer out of the capacitor to reduce internal heating problems and increase life expectancy. Improved Magnetic Materials for Motors.
The Boulder team’s BAU reference scenario was unmodified from the 2014 EPA US9R database, including EPA’s efficiency and cost estimates for future gasoline ICEV, HEV, PHEV, BEV, and ethanol vehicles. Electricity generation from natural gas increases over time in both scenarios, whereas generation from existing coal plants declines.
Researchers at DOE's Pacific Northwest National Laboratory also evaluated the impact of plug-in hybrid electric vehicles, or PHEVs , on foreign oil imports, the environment, electric utilities and the consumer. The study also looked at the impact on the environment of an all-out move to PHEVs.
Mitsubishi Triton to target BYD Ute and Ford Ranger with all-new plug-in hybrid system READ MORE: 2023 Mitsubishi Outlander PHEV long-term review: Laziness destroys our fuel savings, but plug-in potential is clear READ MORE: Is this a window into the Mitsubishi Triton’s all-electric future in Australia? 2024 Mitsubishi Triton.
The Partnership’s budget for electrochemical energy technologies has increased as the importance of PHEV battery development has increased. At present, about 75% of the funding is focused on near- and midterm development efforts directed at HEV and PHEV applications, and only 25% is directed to long-term R&D. Recommendation 4-4.
For instance, electricity generated from coal or natural gas is associated with higher carbon emissions, while renewable sources like wind or solar energy contribute negligible carbon pollution. However, the production of electricity for EV charging can result in carbon emissions, depending on the energy source.
When produced and distributed in high volume, hydrogen can be made efficiently from a variety of feedstocks including natural gas, biomass, and coal with sequestration at levelized costs of $3-6/kg, which, when adjusted for the efficiency of the FCV, is comparable to $1.50-%3.00/gallon gallon of gasoline in today’s vehicles.
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