Workplace charging stations are private charging stations that are designated for employees only. From the last quarter of 2019 to the first quarter of 2021, the number of workplace chargers increased by 28% to a total of 9,894 chargers. The vast majority of workplace chargers, nearly 95%, were Level 2 as of the first quarter of 2021. In that same quarter, Level 1 chargers accounted for about 4% and DC fast chargers accounted for less than 1%.
Source: National Renewable Energy Laboratory, Electric Vehicle Charging Infrastructure Trends from the Alternative Fueling Station Locator: First Quarter 2021. Golden, CO, 2021.