Charging station reliability is important, but what does it mean in practice?
As revealed by Elizabeth France in her article, reliability is simple from an EV driver’s perspective –
Does the charging station work when they need it to?
Key takeaways for sharing:
- If drivers cannot depend on charging infrastructure, they won’t drive electric.
- In the EV charging industry, reliability is often measured in terms of uptime.
- There are different reasons why a charger may not work.
- Possible key performance indicators:
- the time needed to detect the service-affecting issue
- the time needed to escalate the service-affecting issue to the party responsible
- the time needed for the party responsible to repair/resolve the service affecting issue and restore service (known as mean time to repair or “MTTR”)
- the time needed to restore service (known as the mean time to restore service or “MTTRS”)
- For charging equipment in particular, the mean time between failure (known as mean time between failures or “MTBF”) can be considered.
- All things being equal, a high MTBF should lead to better uptime
- The metrics for reliability in the EV charging space are not widely known
Read Elizabeth’s article here for more.