Electric vehicle supply equipment (EVSE)
What is EVSE?
EVSE (Electric Vehicle Supply Equipment) refers to the equipment that delivers electrical energy from a power source to an electric vehicle (EV). It includes charging stations, connectors, and safety systems that manage power flow, monitor charging, and protect both the vehicle and user. EVSE can provide Level 1, Level 2, or DC fast charging, making it an essential component of EV charging infrastructure for homes, workplaces, and public charging networks.
Why EVSE Matters
- Safety: Ground fault and over-current protection.
- Interoperability: Standard plugs and protocols.
- User Experience: RFID or app control and alerts.
- Revenue and Compliance: Accurate metering.
How It Works
EVSE systems analyze:
- Handshake with the vehicle.
- Current and cable limits.
- Environment and safety.
- Authentication and billing.
Control systems manage:
- Start or stop commands.
- Load sharing.
- Tariffs and reports.
Key Technologies
- OCPP-enabled controllers.
- CCS or Type 2 connectors.
- Utility-grade meters.
- Contactors and RCDs.
- Firmware updates.
Applications
- Home, workplace, or public.
- Fleet depots.
- Parking operators.
- Utilities and municipalities.
Benefits
- Safer charging.
- Easier payments.
- Higher utilization.
- Better planning with data.
Use Cases
- App-controlled home charging.
- Corporate RFID programs.
- Roaming across networks.
- Smart city deployments.