DC Fast Charging Infrastructure for Electrified Road Trips

DC Fast Charging Infrastructure for Electrified Road Trips
Author:
Publisher:
Total Pages: 0
Release: 2020
Genre:
ISBN:

To assess DC fast charging station network required for electrified road trips by 2030 in California, a new charging infrastructure simulation tool/model, EVI-Pro (Electric Vehicle Infrastructure Projection) RoadTrip, has been developed. In contrast to the existing EVI-Pro model that is primarily for short-distance travels, EVI-Pro RoadTrip is exclusively focused on road trips (long-distance travels, 100 or miles per day per vehicle). Also, the charging paradigm or strategy is different. EVI-Pro RoadTrip is built upon waypoint charging, in which vehicles are forced to stop to charge or replenish the on-board batteries, along the routes between origins and destinations. On the other hand, EVI-Pro is based on destination charging, in which charging is conducted when vehicles are parked in destinations (e.g., work, home). EVI-Pro RoadTrip takes coordinate-level origin and destination data for road trips (intra-state as well as domestic or international out-of-state) and estimates energy consumption and charging needs along the routes between origins and destinations on a minute-by-minute resolution. Based on charging demands for electrified road trips across the state, the optimal locations of charging stations are determined accounting for preferred land use types (e.g., commercial areas) and station service area (e.g., 5 or less miles). Based on station-by-station charging load profiles, the required number of plugs/connectors is estimated for each station and entire state. By comparing hosting capacity of the electric grid (circuit-level) and the charging load output from EVI-Pro RoadTrip, capacity deficit is also evaluated.

Wireless Charging in California

Wireless Charging in California
Author: Micah David Fuller
Publisher:
Total Pages:
Release: 2014
Genre:
ISBN: 9781321362527

The proliferation of the internal combustion engine vehicle has ushered in an unparalleled era of mobility over the past century at great cost to human health and the environment. In addition to mortality and morbidity concerns associated with air pollution, motor vehicles pose a significant challenge to global climate change goals. Curbing climate change and air pollution require us to make deep emissions cuts in the transportation sector. Battery electric vehicles have the potential to significantly reduce emissions; however, it is likely their adoption will be limited by range and recharge issues. Roadway-powered electric vehicles that can be inductively (wirelessly) charged while moving along a roadway have been suggested as a possible solution to the range and recharge issues. With wireless charging, the vehicle is charged as it moves along the roadway, reducing or even eliminating the need for lengthy stops to recharge. Using a least cost optimization model under a geographic information system framework in California, we have developed scenarios to explore the options for wireless roadway charging for different range EVs. We find that most long distance statewide travel between popular destinations could be accomplished with a 200-mile range EV and 626 miles of roadway with 40-kW dynamic charging at a capital cost of about $2.5 billion. This assumes that supplemental static charging is used when traveling between Northern and Southern California or to the upper extents of California near the Oregon-California border (static charging is conducted at a recharging site off of the highway). Our research not only shows that relatively little dynamic charging infrastructure is required to enable long distance travel between popular destinations in California but also indicates that the capital investment required to deploy such an infrastructure in California could be recovered within a 20-year period under relatively low vehicle volumes (300,000 to 1,000,000) consuming a relatively small amount of dynamic charging energy yearly (27 kWh to 138 kWh). Even at very low battery prices of $100 per kWh, our findings indicate that dynamic charging is more cost effective at extending range than increasing battery capacity alone. Finally, in our analysis of wireless charging and bus mass transit, our results suggest that wireless charging employed during bus layover periods can be an attractive and effective measure to reduce onboard energy storage requirements and capital battery electric bus costs, resulting in a solution than can better compete with existing fossil-fueled buses.

Cal Poly Electric Vehicle Charging Infrastructure Initiative

Cal Poly Electric Vehicle Charging Infrastructure Initiative
Author: California Energy Commission
Publisher: Independently Published
Total Pages: 30
Release: 2020-09-19
Genre:
ISBN:

This is a low cost print edition of a government publication. This report describes the results of the installation of 12 Level 2 electric vehicle charging portswith 12 dedicated parking spaces in two campus parking lots at California PolytechnicUniversity State University in San Luis Obispo. The goal of the project was to bring electricvehicle charging infrastructure to the university to increase the use of electric vehicles andthus reduce emissions associated with transportation by increasing workplace and destinationcharging. Usage data were collected from the stations over a 13-month period ending April 30,2016, to determine equivalent emission reductions as well as various vehicle and userstatistics. Specific objectives to increase workplace charging to eight users and destinationcharging to 150 users were set.The installation included 12 electric vehicle charging ports (six dual-charging stations)consisting of four Chargepoint CT4025 8-foot bollard dual charging stations and two CT40236-foot wall-mount dual charging stations. Greenhouse gas emission reductions were based onthe number of electric vehicle miles traveled. The internal combustion engine miles displacedwas determined by the measurement of energy delivered by the electric vehicle chargingstations and the energy use per mile of an average electric vehicle. The estimated greenhousegas emission reductions over the data collection period were more than 30,000 kilograms ofcarbon dioxide equivalent emissions and it is estimated that over the 15-year life of theproject, the reductions will reach 500,000 kilograms of carbon dioxide equivalent througheventual displacement of 1.6 million internal combustion engine vehicle miles.By the end of the 13-month data collection period, the number of workplace charging users oncampus has risen to 31 users, and destination charging users have reached 163 users.

Generalized Additive Models

Generalized Additive Models
Author: Simon Wood
Publisher: CRC Press
Total Pages: 412
Release: 2006-02-27
Genre: Mathematics
ISBN: 1584884746

Now in widespread use, generalized additive models (GAMs) have evolved into a standard statistical methodology of considerable flexibility. While Hastie and Tibshirani's outstanding 1990 research monograph on GAMs is largely responsible for this, there has been a long-standing need for an accessible introductory treatment of the subject that also emphasizes recent penalized regression spline approaches to GAMs and the mixed model extensions of these models. Generalized Additive Models: An Introduction with R imparts a thorough understanding of the theory and practical applications of GAMs and related advanced models, enabling informed use of these very flexible tools. The author bases his approach on a framework of penalized regression splines, and builds a well-grounded foundation through motivating chapters on linear and generalized linear models. While firmly focused on the practical aspects of GAMs, discussions include fairly full explanations of the theory underlying the methods. Use of the freely available R software helps explain the theory and illustrates the practicalities of linear, generalized linear, and generalized additive models, as well as their mixed effect extensions. The treatment is rich with practical examples, and it includes an entire chapter on the analysis of real data sets using R and the author's add-on package mgcv. Each chapter includes exercises, for which complete solutions are provided in an appendix. Concise, comprehensive, and essentially self-contained, Generalized Additive Models: An Introduction with R prepares readers with the practical skills and the theoretical background needed to use and understand GAMs and to move on to other GAM-related methods and models, such as SS-ANOVA, P-splines, backfitting and Bayesian approaches to smoothing and additive modelling.

One Mile, One Charger

One Mile, One Charger
Author: Jon Landis
Publisher:
Total Pages: 46
Release: 2022
Genre: Battery charging stations (Electric vehicles)
ISBN:

Informational Hearing on Electric Vehicles

Informational Hearing on Electric Vehicles
Author: California. Legislature. Senate. Committee on Energy and Public Utilities
Publisher:
Total Pages: 224
Release: 1993
Genre: Electric vehicles
ISBN:

Tuesday, March 23, 1993, room 112, State Capitol, Sacramento, California.

Southern California Plug-in Electric Vehicle Atlas

Southern California Plug-in Electric Vehicle Atlas
Author: UCLA Luskin Center
Publisher: Lulu.com
Total Pages: 189
Release: 2013-01-15
Genre: Reference
ISBN: 1300621591

The Southern California PEV Atlas provides a comprehensive series of neighborhood maps that characterize PEV ownership by neighborhood and project PEV ownership growth by council of government and utility service areas. Using a regional travel model, the Atlas also estimates time-of-day proximity of PEVs to charging opportunities at workplaces and retail centers. The Atlas maps additional charging opportunities at multi-unit dwellings and parking facilities. The Southern California PEV Plan, Atlas and other related reports can be found at the PEV Readiness Resource page. Funding for the Atlas was provided by the Southern California Association of Governments, the South Coast Air Quality Management District and the U.S. Department of Energy.