Question 1

When does DC fast charging make sense for a parking lot?

Accepted Answer

DCFC makes sense at high-turnover locations where drivers stay less than one hour — highway-adjacent properties, convenience stores, retail plazas with quick-stop traffic, and fleet staging areas. It also makes sense at destination locations with high demand density, like airports and event venues, where throughput matters more than dwell time.

Question 2

What power requirements does DC fast charging need?

Accepted Answer

A single 150 kW charger requires dedicated 480V three-phase power. Four chargers at 150 kW each need 600 kW of available capacity — roughly equivalent to a small commercial building. Most sites require transformer upgrades, new utility service drops, and potentially demand charge management systems. Total electrical infrastructure can cost $100,000–$500,000 depending on site conditions.

Question 3

How much revenue does a DC fast charger generate?

Accepted Answer

A well-located DCFC unit averaging 8–12 sessions per day at $0.35–$0.50/kWh generates $15,000–$40,000 annually per port. Premium highway locations with higher utilization can exceed $50,000 per port. Revenue also comes from demand charges passed through to users, parking fees during charging, and convenience store or food service attach rates.

Question 4

What reliability standards should DCFC installations meet?

Accepted Answer

NEVI program guidance establishes 97% uptime as the minimum standard for publicly funded chargers. Professional installations should target 98%+ uptime with proactive maintenance contracts, remote monitoring, and same-day repair dispatch. Wins Parking monitors every charger 24/7 and maintains uptime records for every port.

Question 5

Which property types are best suited for DC fast charging?

Accepted Answer

Highway rest stops and travel centers, gas stations and convenience stores transitioning to EV, retail plazas with high traffic, airport parking facilities, fleet depots and logistics hubs, and municipal parking structures in downtown areas. The common thread is high vehicle throughput and willingness to pay premium prices for speed.

DC Fast Charging for Parking Lots