EV Charging Resources

This page offers resources to help public fleet managers plan and pay for EV supply equipment (EVSE). Much of this information is summarized from the Milestones for Electrifying Public Fleets, prepared by the Green Transportation Program.

EVSE Resources

Washington resources

Federal resources

Alternative Fuels Data Center

Electric Vehicle Charging Stations, U.S. Dept. of Energy, Alternative Fuels Data Center
Charging Infrastructure Procurement and Installation
Electric Vehicle Charging Infrastructure Trends from the Alt Fueling Station Locator

Charging resources:

EPA Energy Star

ENERGY STAR Certified Electric Vehicle Chargers
ENERGY STAR Program Requirements for EVSE
ENERGY STAR list for EV Chargers - Find and compare EV chargers that meet ENERGY STAR requirements

Federal Joint Office (U.S. Departments of Transportation and Energy)

Charging Forward: A Toolkit for Planning and Funding Urban Electric Mobility Infrastructure
Charging Forward: A Toolkit for Planning and Funding Rural Electric Mobility Infrastructure

General Services Administration

The General Services Administration (GSA) Blanket Purchase Agreement (BPA) is available to all government agencies authorized to lease or purchase vehicles from GSA Fleet. This includes most federal agencies but also many Native nations. You can use the agreement to procure a range of commercially available charging station options for level 1, 2, and DC fast charging, along with data subscription services.

EVSE purchasing resources include details about the BPA for EV charging equipment and integrating stations at your facility.

EV charging guides

A list of EV charging guides is provided here.

EV charging equipment vendors

Many companies offer equipment for charging EVs. Vendors in this space are continually changing and evolving; we will update this information often. The WA Dept. of Enterprise Services EVSE Contract # 04016 has an approved list of providers to assist your procurement needs.

A list of vendors is provided here.

Get Ready to Apply for Grants & Incentives

As you work to identify state, federal, and utility financing opportunities to support EVSE procurement or hardware installation:

Charging Speeds, Ports & Specifications

EV charging is categorized by charging speed and power levels, and alternating current (AC) versus direct current (DC). The power delivered by utility equipment through transformers to buildings is AC. The batteries in BEVs store and deliver power as DC. AC power, common for moderate-powered charging, must be converted to DC using the vehicle’s onboard charger. DC fast charging (DCFC) equipment supplies DC power directly from the utility service to the vehicle batteries, bypassing the on-board charger.

The information provided here addresses:

  • Charging speed
  • Charging ports
  • Charging specifications
Vehicle-to-Charger Ratios

The table provided here includes details to consider when planning to increase the number of vehicles that can share a single charging port. At first, it may be easiest to plan for one vehicle per EVSE port, but as facility staff gain experience with EVs, greater vehicle-to-port ratios will be more efficient.

Charging Network Options & Load Management

The choice of non-networked or networked charging equipment typically balances the needs at each site with costs of equipment, software, and employee time. You can use telematics equipment attached to each vehicle or a networked charging system to gather data about the new EVs and charging systems.

The information provided here addresses:

  • Non-networked systems
  • Networked systems
  • Telematics
  • Load management
  • Smart breakers
  • Bidirectional, V2G, V2X, or V2B charging
  • Open Communications Protocol (OCP)
Estimate Power & Charging Station Needs

Estimate the power demands for your new EVs to identify the number and types of EVSE or charging stations you will need for each location. The power demand is based on vehicle’s duty- and drive-cycles and the levels of charging required.

The information provided here addresses:

  • Things to consider
  • How much electricity will you need to charge the new EVs?
  • Calculate the charging load profile
Determine Where EVSE Should Be Installed

The information provided here addresses the need to:

  • Determine charging station locations and layouts
  • Assess power capacity
  • Employ best practices
Talk with Your Electrical Utility

Contact your utility when you have preliminary plans for adding EVs and charging equipment to your facility. The utility may have an EV customer specialist who can address technical questions, confirm the new electrical usage estimates, or explain if they have programs or incentives to support fleet or workplace charging.

The information provided here addresses:

  • Preparing for your conversation
  • Questions to ask your utility
  • Future-proof your plans
Policies for EV Charging

The information provided here addresses:

  • Are public agencies required to charge for visitor & employee charging?
  • How could EV charging models impact our fleet?
  • Sample EV Charging Station Policy – WA Dept. of Enterprise Services


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