Data from: Consumer evaluations of charging infrastructure and preferences for fast charging infrastructure
Data files
Sep 26, 2024 version files 400.08 KB
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charging_experiment.xlsx
396.59 KB
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README.md
3.49 KB
Abstract
We investigate fast-charging behavior during long-distance trips, recognizing that the factors influencing charging choices in long-distance trips may differ from routine trips, and the trade-off between cost, charger availability, detour time, and recharging time can be more important.
Our analysis is based on data from experiments on fast charging choices during long-distance travel by owners of both Plug-in Hybrid Electric Vehicles (PHEVs) and Battery Electric Vehicles (BEVs). A total of four choice experiments were conducted for each respondent, each featuring two unlabeled options with varying charging types, cost per 100 miles, charging times per 100 miles, detour time, charger availability, wait times, and facility availability. To better understand the exogenous factors affecting charging choices, we also examine the interaction effects of household income and BEV range.
README: Data from: Consumer evaluations of charging infrastructure and preferences for fast charging infrastructure
We have submitted our raw data (charging_choice_experiment.csv)
Descriptions
charging_choice_experiment_Data
- id.Response ID: Each ID uniquely represents a respondent.
- income: the range represents respondents' annual household income. some are N/A, meaning the respondents did not answer this question.
- gender: 1 represents male, and 0 represents female
- bevUserMake: This field indicates the brand of BEVs, such as Tesla, Kia, Chevrolet, etc. The label "others" is used for respondents who are PHEV owners; for these participants, the survey randomly assigns a fictional BEV with varying ranges, such as 250 miles, 275 miles, etc.
- bevFinalRange60PU: This represents 60% of the BEV's range. During the charging choice experiment, respondents were presented with a charging scheme that involved recharging their BEVs from 20% to 80% of the full range, equating to a total recharge of 60% of the BEV's range.
- experiment: totally there are four charging choice experiments for each respondent, including choiceExp1, choiceExp2, choiceExp3,choiceExp4.
- Each choice experiment presents a binary, unlabeled choice between 1 and 2. Each option differs in terms of charging time, charging cost, detour time, wait time, and available facilities.
- Choice (chosen): For each binary choice experiment, the option selected by the respondents.
- Choice (not chosen): For each binary choice experiment, the option not selected by the respondents.
- Cost.alt_1: For unlabeled choice 1, the charging cost per 100 miles. 4: $4; 8: $8; 18: $18; 25: $25
- Chargetime.alt_1: For unlabeled choice 1, the charging time per 100 miles. 5: 5 minutes; 10: 10 minutes; 15: 15 minutes; 20: 20 minutes
- Detour.alt_1: For unlabeled choice 1, the detour time to charging stations. 2: 2 minutes; 5: 5minutes; 10: 10 minutes; 12: 12 minutes
- Chargewait.alt_1: For unlabeled choice 1, the chance of wait for charging. 0: no chance of waiting; 1: possible chance of waiting;
- Waittime.alt_1: For unlabeled choice 1, the wait time for charging. 0: No new text. Just the display from above: “No chance of Waiting”; 4: 4 minutes; 8: 8 minutes; 12: 12 minutes
- Facility.alt_1: For unlabeled choice 1, the wait time for charging.
- No amenities
- Restrooms only
- Restrooms + Convenience Store
- Restrooms, Coffee shop/restaurants, play area/green outdoor space
- Cost.alt_2: For unlabeled choice 2, the charging cost per 100 miles. 4: $4; 8: $8; 18: $18; 25: $25
- Chargetime.alt_2: For unlabeled choice 2, the charging time per 100 miles. 5: 5 minutes; 10: 10 minutes; 15: 15 minutes; 20: 20 minutes
- Detour.alt_2: For unlabeled choice 2, the detour time to charging stations. 2: 2 minutes; 5: 5minutes; 10: 10 minutes; 12: 12 minutes
- Chargewait.alt_2: For unlabeled choice 2, the chance of wait for charging. 0: no chance of waiting; 1: possible chance of waiting;
- Waittime.alt_2: For unlabeled choice 2, the wait time for charging. 0: No new text. Just the display from above: “No chance of Waiting”; 4: 4 minutes; 8: 8 minutes; 12: 12 minutes
- Facility.alt_2: For unlabeled choice 2, the wait time for charging.
- No amenities
- Restrooms only
- Restrooms + Convenience Store
- Restrooms, Coffee shop/restaurants, play area/green outdoor space
Methods
This study conducted a questionnaire survey in February and March 2024, targeting existing plug-in electric vehicle (PEV) owners. The respondents were sampled from the California Department of Motor Vehicles (DMV) database, specifically targeting PEVs of model year 2015 and later. The survey was distributed to 4,120 PEV owners, of whom 1,265 began the survey. A total of 1,102 respondents completed the choice experiment, and 1,086 completed the entire questionnaire. This survey aims to quantitatively evaluate the factors influencing charging preferences for long-distance trips using stated preference (SP) data. We designed a choice experiment to examine the preferences of BEV owners regarding faster charging on long-distance trips. The choice experiment considers several factors, including charging type – label (fast: 100kW to 125kW or ultrafast: 250kW to 400kW), charging cost, charging time, detour time to the charger, whether there is a chance of having to wait at the charger, the typical wait time, and whether there were different amenities available at each charging location. This design allows us to understand preferences for charging speed, time, detour distance waiting time, and facilities at charging locations.