The OurEnergyLibrary aggregates and indexes publicly available fact sheets, journal articles, reports, studies, and other publications on U.S. energy topics. It is updated every week to include the most recent energy resources from academia, government, industry, non-profits, think tanks, and trade associations. Suggest a resource by emailing us at info@ourenergypolicy.org.
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Because of its special energy driving mode, electric vehicles can improve the efficiency of energy utilization and reduce the pollution to the environment, which is being paid more and more attention. But the charging behavior of electric vehicles is random and intermittent. If the electric vehicle is disordered charging in a large scale, it causes great pressure on the structure and operation of the power grid and affects the safety and economic operation of the power grid.
With the development of V2G technology in electric vehicle, the study of the charging and discharging characteristics of electric vehicles is of great …
View Full ResourceA large number of electric vehicles are connected to the family micro grid will affect the operation safety of the power grid and the quality of power. Considering the factors of family micro grid price and electric vehicle as a distributed energy storage device, a two stage optimization model is established, and the improved discrete binary particle swarm optimization algorithm is used to optimize the parameters in the model. The proposed control strategy of electric vehicle charging and discharging is of practical significance for the rational control of electric vehicle as a distributed energy storage device and electric vehicle participating …
View Full ResourceElectric Vehicles (EVs) and hybrid Electric vehicles (HEVs) are going to reshape the future of the transportation sector. However, adopting large numbers of EVs and HEVs will impact the electric utilities as well. Managing the charging/discharging of substantial numbers of distributed batteries will be critical for the successful adoption of EVs and HEVs. Therefore, this paper presents a review study about the recent control and optimization strategies for managing the charging/discharging of EVs. The paper covers different control and operation strategies reported in the literature as well as issues related to the real time dispatching of EVs in the smart …
View Full ResourceIn June 2016, the City of Columbus, Ohio, won the U.S. Department of Transportation Smart
City Challenge, laying the foundation to become a model for future sustainable transportation in
the United States and abroad. With the support of the U.S. Department of Energy’s Vehicle
Technologies Office, the National Renewable Energy Laboratory worked with the City of
Columbus, The Ohio State University, Clean Fuels Ohio, the Mid-Ohio Regional Planning
Commission, and American Electric Power to develop a plan for the expansion of the region’s
network of charging stations to support increased adoption of plug-in electric vehicles (PEVs) in
the local market. …
Mobility is going to change rapidly in the coming years as electric vehicles (EV) proliferate, ride sharing continues to grow, and eventually autonomous vehicles (AV) enter urban fleets. This is especially true in cities where new forms of mobility are concentrated and where investment in supporting infrastructure is needed
to accommodate this growth. These changes coincide with the evolution towards cleaner, more decentralized and digitalized energy systems and services, and increasing electrification.
Today, public- and private-sector stakeholders deploy policy, infrastructure and business models based largely
on current patterns of mobility and vehicle ownership. The uptake of privately owned EVs is …
The transportation sector is a major energy consumer, accounting for roughly 29% of primary energy use in the United States. 80% of this energy is for on-road vehicles, which are predominantly powered by petroleum gasoline or diesel. Unfortunately, petroleum-powered vehicles have a number of downsides. They are inefficient: a typical gasoline car converts only 17%-21% of the chemical energy in the fuel into useful work. Petroleum fuels are expensive per unit energy compared to other fuels, and they would be even more so if the U.S. government did not subsidize oil production by more than $4 billion per year. They …
View Full ResourceConsidered as a pooled resource, the growing number of electric vehicle batteries could provide a wide range of valuable grid services, from demand response and voltage regulation to distribution-level services, without compromising driving experience or capability. Electric utility companies can use new communications and control technologies, together with innovative tariffs and incentive structures, to tap the sizeable value potential of smart electric-vehicle charging to benefit utility customers, shareholders, vehicle owners, and society at large. This will mean influencing, with increasing precision, where and when EVs are charged through a combination of partnerships, incentives, and market structures. In its early stages, …
View Full ResourceFor more than 100 years, national parks have provided a haven for Americans seeking to escape congested cities burdened with noise and air pollution. Names such as Yellowstone, Redwood National Park, the Badlands, and Arches National Park evoke images of towering mountains, wildflowers, free-flowing rivers, and lush tree canopies. However, these treasured areas are becoming polluted from passenger vehicle emissions—which account for 40 percent of emissions that originate in national parks—as well as from ozone and smog from other sources, including coal-fired plants situated upwind from national parks.2 The Obama administration’s efforts to reduce these forms of pollution—such as the …
View Full ResourceElectric vehicles (EVs) offer important advantages over conventional gasoline-powered cars, including less-expensive fueling and maintenance costs, and significantly fewer global warming emissions.
In Oregon—home to more than 5,000 electric cars and hundreds of public recharging locations—EVs are already saving drivers more than $3 million in fueling costs. In 2014, driving the average new gasoline vehicle 100 miles cost Oregon’s drivers around $12.16; driving the same distance on electricity cost an average of only $3.41.
Oregon’s EVs also offer significant climate benefits. Because electricity in Oregon is a cleaner energy source than gasoline or diesel, EVs can help cut emissions from …
View Full ResourceThanks in part to forward-looking state policies, Georgia has become one of the fastest-growing markets for electric vehicles (EVs) in the United States. As of July 2014, Georgia had the second-most registered EVs in the country, while Atlanta surpassed Seattle to claim the second-highest percentage of EV registrations among major U.S. metropolitan areas.
These advanced vehicles bring substantial economic benefits to Georgia. Driving the average new gasoline vehicle 100 miles cost Georgia’s drivers around $13.57 in 2014. Driving the same distance on electricity cost an average of $3.53 in the state, and as little as $0.40 if the EV was …
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