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Study finds more than a quarter of charging stations were nonfunctional

A brand new research discovered that multiple out of 4 public charging stations within the Bay Space have been nonfunctional when examined. Relying by yourself expertise that will sound like rather a lot, or a bit…

As an electric car driver, there’s nothing extra irritating than displaying as much as a charging station and discovering it to be nonfunctional. It occurs extra usually than it ought to, and researchers on the College of California Berkeley tried to get some precise information on it.

The dataset is predicated on 678 chargers at 181 stations within the Bay Space:

A complete of 181 open public DCFC EV charging stations and 678 EVSEs with CCS connectors have been recognized within the 9 counties of the Higher Bay Space and visited between February 12, 2022 and March 7, 2022.

The outcomes have been disappointing. In accordance with the research, greater than a fourth of all chargers have been discovered to be nonfunctional when examined:

General, 72.5% of the 657 EVSEs have been purposeful. The cable was too quick to succeed in the EV inlet for 4.9% of the EVSEs. Causes of twenty-two.7% of EVSEs that have been non-functioning have been unresponsive or unavailable screens, cost system failures, cost initiation failures, community failures, or damaged connectors.

The research additionally questions the reported uptime by charging community operators:

A random analysis of 10% of the EVSEs, roughly 8 days after the primary analysis, demonstrated no general change in performance. This stage of performance seems to battle with the 95 to 98% uptime reported by the EV service suppliers (EVSPs) who function the EV charging stations.

The research determined to exclude Tesla automobiles since they aren’t thought-about “public chargers” since they solely work with Tesla automobiles. Nevertheless, they did cite one other survey about Tesla Superchargers:

In the identical survey, solely 4% of Tesla homeowners reported a significant problem with the Tesla closed DCFC system.

This seems to be higher than the chargers examined within the research, which have been primarily operated by EVgo and Electrify America.

Briefly, the research concludes that there’s loads of room for enchancment:

The findings recommend a necessity for shared, exact definitions of and calculations for reliability, uptime, downtime, and excluded time, as utilized to open public DCFCs, with verification by third-party analysis.

You’ll be able to learn the total research here.

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