What to consider when choosing a DC charger

What to Consider When Choosing a DC Charger

When selecting a DC EV Charger for your application, there are several key factors to consider: location, power requirements, number of EVs to be charged, connector types needed, and management/networking capabilities. As a business looking to install DC fast charging, you’ll want chargers that can deliver high power to minimize charging times, while also meeting evolving industry standards. Work with an experienced EV charger manufacturer to select the right DC chargers to meet your specific needs.

Typical DC Charger Power Levels

DC fast chargers typically have power levels from 50kW up to 350kW. 50kW chargers can add about 100 miles of range in 30 minutes, while ultra-fast 350kW models can add 200+ miles in 15 minutes. Higher power translates to less charging downtime for drivers. Consider what charging speed you need, as higher power requires more robust electrical infrastructure. An EV charger manufacturer can help determine the optimal power level based on your site and budget.

DC Charger Electrical Service Requirements

Installing DC fast chargers requires coordinating with your utility to install appropriate electrical service. Chargers over 50kW often require 480V 3-phase power at 200-1000A capacity. Power requirements go up dramatically for ultra-fast 100kW+ chargers. Working closely with an EVSE provider and electrician on-site assessments and utility coordination is crucial to ensure sufficient electrical infrastructure. Costs vary widely based on site factors.

DC Charger Connector Types

CHAdeMO and SAE Combo (CCS) are the two dominant DC charging standards globally. Most vehicles support one or both. Having both connectors at each station allows you to support all DC capable vehicles. The roles of Tesla and Chinese GB/T plugs are also increasing in certain regions. An EV charger company can advise on the best connector strategy based on your locations and target vehicles.

DC Charger Networking, Management & Payment

Reputable commercial EV chargers offer open charge point network protocols like OCPP to manage, control, configure, and monitor your chargers remotely through software. Central management provides usage stats, diagnostics, access control, cost optimization, driver payment processing, and other benefits. Select chargers that support open software integration for maximum flexibility and scalability as your charging network grows.

Facilities Needed for DC Fast Charging Sites

Quality DC fast charging sites require adequate parking spaces, lighting, signage, markings, canopies, and electrical rooms. ADA compliance is also mandatory. Sites must have sufficient power imported, with concrete pads for chargers and spare parts inventory stored locally. Well-designed layouts avoid crossing vehicle and pedestrian paths. Check with local authorities on space requirements as regulations evolve. EVSE providers offer site planning guidance.

Installing DC Chargers Along Highway Corridors

Motorway EV charging stations allow for convenient fast charging while enabling longer distance EV trips. Traffic flow impact, spacing from other services, dedicated EV parking, and restroom availability must be considered. Federal and state funding can offset costs through highway corridor fast charging programs. Utilize EV charger experts to navigate highway permitting/approvals and optimize site design for high vehicle turnover.

Costs for Business DC Fast Charging Installations

For a two-charger business site with 50kW CCS/CHAdeMO units, costs often range from $75,000 to $150,000+ in the United States depending on electrical upgrades needed, labor, permits and other variables. Costs rise further with higher power chargers, additional connectors, solar/storage, etc. Explore electric utility incentives/rebates and federal tax credits which can reduce outlays by 50% or more.

Ongoing Operation, Maintenance & Network Fees

While installation is the biggest upfront cost, ongoing fees for operation, land leases, maintenance, software and payment processing can really add up. Utilization and charging rates determine profitability over time. Ensure you budget ~10-20% annually for field service, repairs and software subscriptions to keep your DC chargers performing reliably for customers.

DC Fast Charger Installation FAQs

What permits do I need for installing DC fast chargers?

Electrical, building, environmental and highway permits with approvals often required from utility, local government and potentially state agencies. Experienced EVSE partners handle permitting.

How long does DC fast charger installation take?

With site work and approvals, typical lead time is 12-16 weeks. Charger manufacturing & shipping adds 4-6 weeks.

Can I upgrade the charging power later if demand increases?

Power sharing allows boosting power as future needs arise via larger transformers, higher voltages and battery buffers while utilizing your existing chargers.

Is it difficult for my electrician to install DC fast chargers?

Complex high voltage installations require EVSE specialists. We train licensed electricians to safely install and maintain fast charging equipment.

Who should I choose to install DC fast charging equipment?

Select experienced, licensed EV charging providers working nationally who offer turnkey solutions tailored to your goals. Vet after-sales support capabilities before committing