Purpose of EV Charging Data and Reliability Standards
- Improve California EV driver experience and confidence in EV adoption.
- Increase the reliability of publicly or ratepayer funded Direct Current Fast Chargers.
- Support reliability monitoring, uptime enforcement, and maintenance planning.
Direct Current Fast Chargers (DCFCs) installed after January 1, 2024 that received state, ratepayer, or federal funding passed through a state agency must comply with the Standards, with some exceptions. These chargers must comply with the Standards for six years from the date of installation.
These Standards exclude:
- Chargers located at single-family homes and multifamily dwellings with 4 or fewer units.
- Level 2 chargers (although publicly accessibly Level 2 chargers must display information telling users how to report an outage).
- Temporary chargers, off-grid chargers and research chargers.
- Fleet chargers (although publicly accessibly fleet chargers must display information telling users how to report an outage).
- 97% Uptime Standard
- Uptime means the direct current fast charger hardware and software are online, the charger is available for use, and the charger successfully dispenses electricity.
- Uptime is calculated per port, not per station.
- Downtime due to vandalism (up to 10 days per incident), grid power loss, natural disasters, and planned maintenance (up to 72 hours per year) are excluded in calculating uptime.
- Operation and Maintenance Standard
- DCFC sites must display a mechanism for customers to report outages and malfunctions.
- Open Charge Point Protocol 2.0.1 Certification
- DCFCs installed after September 27, 2026 must support OCPP 2.0.1.
Semiannual Reporting
- DCFCs installed by September 27, 2026 must submit uptime reporting on a semiannual basis.
- 15-minute interval reliability data must be recorded and retained. These chargers may choose to submit hourly reliability data instead.
- Semiannual uptime reports must be submitted as .csv in the specified format. Reporting cadence is the following:
- January 1 - June 30 (due July 31).
- July 1 - December 31 (due January 31).
- The first reporting deadline is due January 31, 2027 for the period July 1, 2026 – December 31, 2026.
Hourly Reporting
- Networked DCFCs installed after Sept 27, 2026 must submit hourly reliability data through the CEC’s AWS S3 portal.