How to Choose an EV Charger for Your Business — Complete Buying Guide

Buying commercial EV charging equipment is a bigger decision than it looks. The charger you choose determines your electrical infrastructure requirements, your ongoing operating costs, your ability to scale, and—critically—whether your customers, employees, or fleet vehicles actually get charged reliably.

This guide walks you through every decision you need to make before purchasing, from charging level to network platform to installation planning.

Step 1 — Define Who Is Charging and Why

The most important question is: who are you charging, and what do they need?

Employees at Work

Employees arrive in the morning and leave in the evening, giving them 8–10 hours of dwell time. Level 2 charging (7.7–19.2 kW) is almost always sufficient. A standard Level 2 charger adds 25–60 miles of range per hour, meaning most EVs fully charge during a typical workday.

Customers at Retail or Hospitality

Customers typically stay 30 minutes to 4 hours. For short dwell times (quick-service restaurants, convenience stores), DC fast charging (50–150 kW) is recommended. For longer dwell destinations such as full-service restaurants, hotels, and movie theaters, Level 2 charging works well.

Fleet Vehicles Returning to Depot Overnight

Fleet vehicles often remain parked for 8–16 hours, making Level 2 charging suitable in most cases. However, high-power Level 2 (19.2 kW / 80A) or DC fast charging may be necessary for vehicles with larger battery packs or fleets operating multiple daily shifts.

Public Highway Corridor Charging

Drivers stopping specifically to recharge need the fastest charging available. DC fast charging between 150–360 kW is the standard solution for highway and travel corridor locations.

Step 2 — Understand Charging Levels

For most commercial applications, the decision comes down to Level 2 charging, DC fast charging, or a combination of both.

Step 3 — Assess Your Electrical Infrastructure

This is where many buyers encounter unexpected costs. Before selecting any charger, you need to understand:

• Available panel capacity — How much spare amperage does your electrical panel have?

• Distance from the electrical panel to the parking area — Longer conduit runs increase installation costs.

• Utility service voltage — Whether your site has 208V single-phase or 480V three-phase power significantly affects charger options.

• Utility interconnection lead time — High-power DC fast chargers may require 6–18 months for utility service upgrades.

A 32A Level 2 charger requires a 40A circuit. Installing 10 Level 2 chargers at 32A each requires approximately 400A of panel capacity, which many commercial buildings do not have.

Smart load management (dynamic load balancing) helps maximize existing electrical capacity by intelligently distributing power among chargers, allowing more charging stations without major electrical upgrades.

For 150 kW+ DC fast chargers, you'll almost certainly need 480V three-phase utility service with significant available capacity. Some projects require transformer upgrades or entirely new utility service, potentially adding 6–12 months and $50,000–$250,000+ to the project budget.

Talk to Verdek's Engineers About Your Site →

Step 4 — Decide on Network Management

Networked chargers connect to cloud-based management platforms that provide:

• Access control

• User authentication

• Billing and payment processing

• Energy monitoring

• Remote diagnostics and management

For most commercial installations, networked chargers are well worth the additional hardware cost and annual subscription.

When You Need Network Management

• You want to charge customers per session or per kWh.

• You need to restrict access (employees only, validated customers, etc.).

• You require energy usage reports for sustainability reporting or employee reimbursement.

• You're deploying five or more chargers and need remote monitoring to maximize uptime.

When Unnetworked Chargers May Be Sufficient

• Small employer-provided charging (2–4 chargers) offered free to employees.

• Private fleet depots with only company-owned vehicles.

• Temporary or event-based charging installations.

Open-protocol OCPP-compliant chargers provide flexibility by allowing you to switch network providers without replacing hardware. Verdek recommends OCPP-compliant chargers for all commercial installations.

Step 5 — Plan for Future Scale

One of the most expensive mistakes businesses make is installing infrastructure that cannot grow with future demand.

When designing your charging installation:

• Install conduit to all parking spaces, not just the spaces receiving chargers today.

• "Make-ready" conduit typically costs $500–$1,500 per space, but can save $3,000–$8,000 per space when expanding later.

• Reserve sufficient electrical panel capacity based on your long-term charging goals, not just your initial deployment.

• Choose modular charging systems (such as ChargePoint Express Plus or ABB Terra 360) that allow additional power modules to be added without replacing existing hardware.

Step 6 — Calculate Total Cost of Ownership

Hardware cost is only one part of the overall investment. Over a typical 10-year ownership period, consider the following expenses:

Federal tax incentives, including the 30C Commercial Clean Vehicle Credit, currently provide a 30% tax credit for commercial EV charging equipment and installation costs, up to $100,000 per location. Many utility providers also offer additional rebates ranging from $500 to $5,000 per charger.

Frequently Asked Questions

Q: How long does it take to install commercial EV chargers?

A simple Level 2 installation in an existing building can typically be completed within 1–4 weeks, including permitting and commissioning. Projects requiring utility upgrades or significant electrical work may take 3–12 months, so early planning is essential.

Q: Do I need to hire a special electrician for EV charger installation?

You should hire a licensed electrical contractor. Some states require additional EV-specific certifications. Verdek can recommend qualified installation partners in your area.

Q: What is the best EV charger for a small business?

For businesses with 1–10 parking spaces at workplace or retail locations, a networked Level 2 charger such as the ChargePoint CT-4000 or EvoCharge iEVSE typically offers the best balance of price, reliability, and features.

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