EVITP EV Charging Standards 2 — Questions and Answers
Question 1: What is Vehicle-to-Grid (V2G) technology?
- EVs discharging energy back to the grid during peak demand (Correct answer)
- GPS navigation for EVs
- Remote diagnostics
- Autonomous driving
Correct answer: EVs discharging energy back to the grid during peak demand
V2G enables bidirectional power flow from EV batteries to the grid.
Question 2: What grounding requirements apply to EV charger installations?
- Equipment grounding conductor, GFCI protection, and proper bonding per NEC (Correct answer)
- No grounding needed
- Only the charger needs grounding
- Grounding is optional
Correct answer: Equipment grounding conductor, GFCI protection, and proper bonding per NEC
Multiple layers of grounding and fault protection are required.
Question 3: What site assessment is needed before EV charger installation?
- Electrical capacity, panel space, distance, ADA compliance, utility coordination (Correct answer)
- Only distance to outlet
- Just parking space count
- Only electricity cost
Correct answer: Electrical capacity, panel space, distance, ADA compliance, utility coordination
Multiple electrical and physical factors must be evaluated.
Question 4: What is demand response for EV charging?
- Adjusting charging based on grid capacity and electricity demand (Correct answer)
- Customer complaint handling
- Warranty response
- Maintenance scheduling
Correct answer: Adjusting charging based on grid capacity and electricity demand
Demand response coordinates charging with grid capacity.
Question 5: What is the 80% continuous load rule?
- EV charging load must not exceed 80% of breaker rating for 3+ hour operation (Correct answer)
- Battery charges to 80% only
- 80% efficiency requirement
- 80% of spaces need chargers
Correct answer: EV charging load must not exceed 80% of breaker rating for 3+ hour operation
Continuous loads (3+ hours) cannot exceed 80% of circuit protection rating.
Question 6: What documentation is required after EV charger installation?
- Inspection approval, manuals, warranty, load calculations, as-built drawings (Correct answer)
- Only a receipt
- Just a photo
- No documentation needed
Correct answer: Inspection approval, manuals, warranty, load calculations, as-built drawings
Thorough records serve regulatory and practical purposes.
EVITP EV Charging Standards 2
What is Vehicle-to-Grid (V2G) technology?