EVITP Infrastructure Planning and Development 2 — Questions and Answers
Question 1: When performing a site assessment for EVSE installation, which utility document is most critical to obtain first?
- Building occupancy permit
- Existing service entrance capacity report (Correct answer)
- Local zoning variance approval
- Environmental impact statement
Correct answer: Existing service entrance capacity report
The existing service entrance capacity report determines whether the utility can support added EV load without costly upgrades.
Question 2: A parking facility wants to install Level 2 EVSE in 20% of spaces as required by a local ordinance. Which planning step ensures future scalability?
- Installing all conduit and wiring for 100% of spaces immediately
- Running conduit sleeves to all spaces but wiring only the required 20% (Correct answer)
- Designing the electrical panel for current 20% load only
- Relying on wireless charging pads to avoid conduit planning
Correct answer: Running conduit sleeves to all spaces but wiring only the required 20%
Make-ready infrastructure—conduit without wiring—allows cost-effective future expansion without tearing up pavement.
Question 3: Under the ADA, what is the minimum number of accessible EV charging spaces required when a facility installs 10 total EVSE spaces?
- 1 (Correct answer)
- 2
- 3
- 4
Correct answer: 1
ADA guidelines specify at least 1 accessible EV charging space for every 1–25 total EV spaces provided.
Question 4: Which load management strategy is best suited for a multi-tenant commercial building seeking to add EVSE without upgrading the utility transformer?
- Static load calculation with no controls
- Dynamic load management software that throttles charging based on building demand (Correct answer)
- Installing a dedicated utility meter for each charger
- Using only DC fast chargers to reduce session time
Correct answer: Dynamic load management software that throttles charging based on building demand
Dynamic load management allocates available amperage across chargers in real time, preventing transformer overload.
Question 5: A project in a coastal region requires EVSE rated for a wet, salt-air environment. What minimum NEMA enclosure rating applies to the charger cabinet?
- NEMA 1
- NEMA 3R
- NEMA 4X (Correct answer)
- NEMA 5
Correct answer: NEMA 4X
NEMA 4X provides protection against corrosion, windblown dust, and hose-directed water, making it suitable for coastal salt-air environments.
Question 6: During infrastructure planning, which factor most directly determines whether a site needs a demand charge management system?
- Number of EV models expected to charge
- Utility rate structure with significant demand charges (Correct answer)
- Total square footage of the parking lot
- Age of the existing electrical panel
Correct answer: Utility rate structure with significant demand charges
Demand charges are based on peak power draw; a utility rate with high demand charges makes management systems economically necessary.
Question 7: What is the primary purpose of a traffic impact analysis during EVSE site planning in a high-density urban area?
- To estimate the number of EVs that will charge per day
- To assess queuing and circulation effects of drivers waiting for available chargers (Correct answer)
- To determine the voltage level of chargers needed
- To calculate the carbon offset from EV adoption
Correct answer: To assess queuing and circulation effects of drivers waiting for available chargers
A traffic impact analysis evaluates how driver queuing and circulation patterns for EVSE could affect surrounding roadways.
EVITP Infrastructure Planning and Development 2
When performing a site assessment for EVSE installation, which utility document is most critical to obtain first?