This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
Technology warming potential (TWP) for three sets of natural gas fuel-switching scenarios. (A) A) CNG light-duty cars vs. gasoline cars; (B) CNG heavy-duty vehicles vs. diesel vehicles; and (C) combined-cycle natural gas plants vs. supercritical coal plants using low-CH 4 coal. Source: Alvarez et al. Click to enlarge.
Among the transportation-related elements of US President Barack Obama’s new climate action plan, which he is outlining today in a speech at Georgetown University, is the development of new fueleconomy standards for heavy-duty vehicles post-2018. Preparing the US for the impacts of climatechange. Earlier post.).
This decrease was driven largely by a decrease in emissions from fossil fuel combustion resulting from a decrease in total energy use in 2019 compared to 2018 and a continued shift from coal to natural gas and renewables in the electric power sector. from 2018 to 2019, and CO 2 emissions just from fossil fuel combustion decreased 2.7%
In regions where the share of coal-based electricity is relatively low, EVs can achieve substantial GHG reduction, the team reports in a paper in the ACS journal Environmental Science & Technology. According to the 12 th Five-Year Plan of the China Coal Industry (2011?2015)
The IEA said that this reflects the continued domination of fossil fuels—particularly coal—in the energy mix and the slow uptake of other, lower-carbon supply technologies. Fueleconomy improvements accelerate where implementation of fueleconomy standards and other policy measures has been scaled up, the report notes.
To determine GHG emissions, UCS considered the fueleconomy, fuel type, and sales volume of each type of vehicle sold by each automaker in the 2013 model year (MY2013). ClimateChangeCoal Emissions Fuel Efficiency' Methodology.
The increase from 2012 to 2013 was due to an increase in the carbon intensity of fuels consumed to generate electricity due to an increase in coal consumption, with decreased natural gas consumption, according to the report. ClimateChange Emissions' Total US emissions have increased by 5.9% from 1990 to 2013.
In 2009, the carbon intensity of the electric power sector decreased by nearly 4.3%, primarily due to fuel switching as the price of coal rose 6.8% Increased use of natural gas in place of coal caused the sector’s carbon intensity to decrease. The fueleconomy of the total US fleet improved from 27 mpg US in 2008 to 28.5
USenergy-related carbon dioxide emissions and fossil fuel energy consumption. In the transportation sector, consumption and emissions trends in the past have been driven by changes in travel demand, fuel prices, and fueleconomy regulations. Other sectors have also increased their consumption of natural gas.
The lack of willingness to pay suggests that many consumers are poorly informed over the cost savings of BEVs and the causal link between fuel efficiency and CO 2 emissions, the authors note. This suggests that there are important market failures in consumer decision-making about fueleconomy. ”.Empirical —Tran et al.
Trucks therefore are an important place to look for energy savings and climatechange mitigation in the transportation sector. Among medium- and heavy-trucks, Class 8 trucks are the largest CO 2 emitters and fuel users, consuming two-thirds of all truck fuel, or 1.57 million barrels per day. mpg by 2025 (EIA, 2009).
Natural gas is projected to be the fastest growing fossil fuel, and coal and oil are likely to lose market share as all fossil fuels experience lower growth rates. Fossil fuels’ contribution to primary energy growth is projected to fall from 83% to 64%. Oil, excluding bio-fuels, will grow relatively slowly at 0.6%
This decrease was largely driven by a decrease in emissions from fossil fuel combustion, which was a result of multiple factors including a continued shift from coal to natural gas and increased use of renewables in the electric power sector, and milder weather that contributed to less overall electricity use.
DOE recognizes that technology developments can help make vehicles more efficient and alternative fuels more economic, but the deployment of any technologies it helps develop is largely determined by policies, such as Corporate Average FuelEconomy standards. Impartial DOE research can help inform these standards. fleets).
Among the direct transportation-related provisions in the extensive package are a low-carbon fuel standard for all transportation fuels; financial support for large scale demonstrations of electric vehicles; and financial support for automakers retooling plants to make electric vehicles. Clean Fuels and Vehicles.
Qiang Dai and Christian Lastoskie found that BEVs and FCVs in particular offer significant reductions in greenhouse gas emissions, especially if carbon capture and sequestration (CCS) technologies are implemented at the fuel conversion facilities. —Dai and Lastoskie. The system boundary for the LCA. Credit: ACS, Dai and Lastoskie.
Substantial emission reductions due to fueleconomy standards for passenger cars are already included in the current policy scenario. There are an estimated 6,683 operating coal-fired power plants in the world, with a combined capacity of 1,964 GW. A shift to more electric vehicles is also included. GtCO 2 ).
It does include the revised handling of fueleconomy standards to reflect the proposal for light-duty vehicles in model years 2012-2016. The natural gas share falls slightly due to the completion of coal plants under construction, and the addition of new renewable capacity.
We consider three indicative scenarios that vary the rate of technological improvement and changes in fueleconomy regulations. The Efficiency Policy scenario takes account of recent adopted or proposed fueleconomy goals. For climatechange, however, the nature of the substitutes will have a major impact.
As personal mobility increases, average new-car fueleconomy (including SUVs and light trucks) will improve as well, rising from about 30 miles per gallon (7.83 Significant increases in future fueleconomy across all transportation modes will lead to a further decoupling of transportation services and energy demand, the report finds.
Fifty years later, the USA is faced with a similar challenge, energy independency and climaticchange. Closer to home, the federal fueleconomy standards require the average fleet fueleconomy of OEMs that sell vehicles in the USA to be 35.5 ” A very clear, time-bound, one nation goal. mpg by 2016.
This trend is driven by major improvements in fueleconomy in many countries, especially in the largest car markets in the United States, China, Europe and Japan. PLDV demand for oil is based on four factors, according to WEO 2011: the rate of expansion of the fleet; average fueleconomy; average vehicle usage; and.
A range of advanced technologies developed under Topic Areas 1-4 will be deployed on a truck to demonstrate improvements in vehicle fueleconomy and emissions reduction using one of the following approaches: modifying/utilizing an existing “off-the-shelf” or prototype truck; or building a full prototype truck. Background. Earlier post.)
But the stronger governmental and consumer push for passenger vehicle fueleconomy gains driven by energy security concerns and climatechange initiatives have also led to reduced demand for oil in the OECD. Future world oil demand growth will be driven almost exclusively by emerging markets, the report concludes.
2/12/07 GM is aggressively pursuing plug-in hybrids "because of the tremendous potential to significantly increase fueleconomy," according to spokesman Brian Corbett. But I can tell you that this is a top priority program for GM, given the huge potential it offers for fuel-economy improvement." ( GM ). Red Herring ).
Frank has spent more than 30 years in breakthrough vehicle development, during which he received two world records for vehicle fueleconomy, designed nine generations of PHEVs, and was a four-time winner of US DOE Advanced Vehicle Design competitions. This helps to explain the climatechanges we are now experiencing.
If no one wants your car (because people think it sucks), then no one will buy it, regardless of how good the fueleconomy may or may not be. Denmark did that with Wind Power and now most of their energy comes from wind rather than oil, natural gas, or coal. GM is making strides increasing their cars fueleconomy.
If accompanied by aggressive efforts to get drivers out of their cars, compact growth programs could reduce auto-based 2030 CO 2 emissions by as much as 25% over and above any emissions reductions attributable to higher fueleconomy standards. The amount of emissions reduction possible in any urban area also depends on existing levels.
Trump also froze fines for fleet fuel-economy violators , after his administration lost a court battle to roll the fine amounts back—another move that indirectly likely suppressed the EV market. There’s been no about-face to a clean-energy economy. That said, coal is no longer specifically one of Trump’s crusades in 2024.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
270 
Let's personalize your content