America's EV Charger Uptimes Were Overestimated in 2023, 'Reliability Report' Finds

A company called ChargerHelp provides certified technicians to service EV charging stations (for a monthly fee). And they've just issued their annual "reliability report," reports CleanTechnica: Its analysis of more than 19 million data points collected from public and private sources in 2023 - including real-time assessments of 4,800 chargers from ChargerHelp technicians in the field - finds that a"software consistently overestimates station uptime, point-in-time status, and the ability to successfully charge a vehicle...." [W]hen ChargerHelp technicians personally inspected 4,800 charge points, they found more than 10% were reported to be online but were in fact unable to complete a test charge... These findings by ChargerHelp are backed up by many smaller scale studies and surveys over the past several years that have found that claims of 95% uptime or greater do not match real world experience. A 2022 study of 657 chargers at 181 non-Tesla public charging sites in the San Francisco Bay Area determined that only 73% were capable of delivering a charge for more than two minutes, for example. [I]mprovements have been slow to materialize. In fact, driver satisfaction with public charging has only worsened over the past year, according to the latest J.D. Power Electric Vehicle Experience Ownership Study, released in February. As the variety, price, and range of EVs available to US drivers have become more attractive, mistrust of public charging now constitutes the most significant headwind for EV adoption, J.D. Power says. The report also "lists the biggest infrastructure pain points," reports the Verge, "including a failure to report broken stalls, inaccurate station status messages, aging equipment, and some habitually unreliable network providers (who go unnamed in the study, unfortunately)." EV chargers can break in many ways, the study concludes. These include broken retractor systems intended to protect the cable from getting mangled by vehicle tires, broken screens, and inoperable payment systems. There is also general damage to the cabinet and, of course, broken cables and connectors. Across the chargers recorded, ChargerHelp calculates that actual uptime is only 73.7 percent, compared to the 84.6 percent self-reported by the EV network providers.

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