Analysis of the Electrify America Q3 2021 Report to California Air Resources Board reveals an average utilization rate of their DC fast charger highway corridor and urban locations of 4.8%. This is just one of the findings and data points from the just released EVAdoption report, California EV Charging Network Utilization.
Most charging locations suffer from a combination of a high cost of deployment and a low number of daily charging sessions. As such, utilization — the percent of session time in a 24-hour period of individual chargers — has become a key metric to monitor the health of the industry and individual companies and charging locations. Unfortunately, the utilization metric is also generally a well-kept secret among the networks.
The one exception is Electrify America, which is required as part of Volkswagen’s diesel-gate scandal settlement to produce public reports outlining its progress toward commitments. This report — based on data from Electrify America’s Q3 2021 California report — includes key findings, analysis, and 14 charts.
The data and charts cover three charging use case/location types:
- Highway corridor/urban locations
- Multi-family unit developments (MUD)
Charts and data included for each location type include:
- Number of locations/charging ports/ports per location
- Number of charging sessions per day
- Utilization rate (percentage)
- kWh used per session
- Time per charging session/per day
And for most metrics, the data is presented as:
- Mean (average)
- Top quartile
- Bottom quartile
- Highest data point
Purchasers of the report will also receive the raw data in an Excel file.
Sample Chart: Corridor DC Fast Chargers Average 0.6 Hours Per Session
Corridor/urban DC fast chargers saw a mean, median, and top quartile of 0.6 hours (35 minutes) of use per session, while the bottom quartile averaged a slightly shorter session time of 0.5 hours (30 minutes) per session.