Industry jargon
Uptime and reliability
EV charger uptime and reliability describe how consistently charging equipment remains usable over time. Operators often track these measures using charger or EVSE status data, although commercial KPI definitions can differ. UK Public Charge Point Regulations set a specific reliability requirement for a CPO's rapid public network. Public charge points rated 50 kW and above must achieve at least 99% reliability on average across that network over each calendar year. The UK calculation uses OCPI EVSE object statuses and defined exemptions. A general marketing claim such as "99% uptime" is therefore not automatically the same metric as statutory network reliability. V