Power Demand and Load Requirements
High-speed EV chargers require a substantial electrical load to support fast energy transfer.
- Level 3 chargers need between 50 kW to 350 kW per unit
- Total site load may exceed 1 MW for multiple charging points
- Requires three-phase power at 480 volts or higher
- Load calculations must consider peak usage and future scalability
Grid Proximity and Supply Availability
The site’s distance from high-capacity grid infrastructure impacts installation speed and cost.
- Prefer locations near existing substations or high-voltage feeders
- Longer distances raise costs for trenching and cabling
- Areas with weak grid supply may need significant upgrades
- Early utility engagement is key for capacity confirmation
Transformer and Switchgear Configuration
Dedicated transformers and upgraded switchgear are critical for handling high-speed charging loads.
- Transformers must match the voltage and capacity of the chargers
- Medium-voltage step-down systems are often required
- Switchgear must support protection, metering, and fault handling
- High amperage panels are needed for safe energy distribution
Utility Coordination and Regulatory Permits
Permitting and collaboration with utility providers ensure safe and legal grid integration.
- Applications include interconnection agreements and load approvals
- Timelines depend on utility upgrade needs and grid readiness
- May require environmental and trenching permits
- Site plans must comply with electrical codes and fire safety norms
