Business and community electric vehicle charging station guide

To determine whether an EV charging station is a good choice for your business or community, consider:

• Outcomes: What is your reason for installing an EV charging station? What kind of results do you want to see?
• Customer experience: Where will you put the EV charging station? Who will use it? How long do you expect customers to be at the EV charging station? What will the customers do while their vehicle is charging?
• Budget: What is your budget for installing an EV charging station? How many EV charging stations do you need?
• Revenue: You can charge a fee to use the EV charging station. Are you expecting to collect revenue?
• Timeline: When do you want the EV charging station operational?
• Availability: Do you want to advertise the EV charging station publicly? If so, how will you market it to your audience?

If you make the decision to move forward with an EV charging station, explore the options and the costs in greater detail. Here are some helpful tips:

Get quotes from EV charging station vendors.

To get the most accurate cost estimate for your project, research the various EV charging station manufacturers and their products. Get quotes to compare prices and ask for spec sheets to help engineers and electricians evaluate equipment and infrastructure needs.*

Alliant Energy recommends charging stations with ENERGY STAR certification.

*Alliant Energy does not endorse any EV charging station manufacturer mentioned or not mentioned. Alliant Energy is not liable for any damage or malfunctions from EV charging stations purchased from an EV charging station manufacturer or vendor.

Questions to ask during your research of EV charging stations:

• How long is the warranty and what does it cover?
• What safety certifications (UL, ETL or Energy Star) does the EV charging station have?
• How is the EV charging station maintained?
• How is the EV charging station repaired and how long does it take on average to repair?
• Is the EV charging station able to support multiple software platforms to assist with processing payments and data management? Supporting multiple types of software is called Open Charge Point Protocol (OCPP) compliant.
• What type of connections do the charging ports have and what type of electric vehicles can use them? Common types of connections include but are not limited to CCS, CHAdeMO and J-1772.
• How many charging cycles (or numbers of times it can charge an EV) is the charging station rated?
• How long is the charging station rated to last?
• Are there additional costs involved in making the EV charging station operational, such as commissioning?
• Can the manufacturer meet Buy America standards? This is needed for National Electric Vehicle Infrastructure (NEVI) projects.

Check the electric service manuals.

The service equipment you order (such as Current Transformer [CT] cabinets) will need to align with Alliant Energy’s electric service rules. Check out our electric service manuals. Contact us at 1-800-ALLIANT (800-255-4268) if the equipment is not listed in the manual. We will review the project to make sure you order the right equipment, saving you time and money.

Explore possible software platforms.

Get a list of compatible software platforms from the charging station manufacturer. Then, get quotes from multiple software platform providers to compare prices.

Questions to ask the software platform provider:

• What kind of access restrictions can be set up to allow only certain drivers to use the changing station?
• How does a customer enable the EV charging station to charge their vehicle?
• What kind of fee structures can be set up?
• How does a customer pay for EV charging services?
• How much of the fees collected will the software company keep? How much of the fees collected will I receive?
• Are there one-time commissioning fees for activating the EV charging station?
• How much does the software cost per year?
• Does the software require a specific cellular connection? If so, how much does it cost?
• How is the software maintained and updated?
• What do I do if I notice the charging station is not online or operating?
• How often do you run reports to see if stations are offline, and how long does it take to get them back online?
• Will the software notify me if the charging station is offline?
• Can I schedule when the charging station is available for use?
• Can I set a maximum kilowatt or kilowatt-hour output to limit the electricity demand at any point in time?

Note for Iowa customers: The state of Iowa collects a $0.026 per kilowatt-hour excise tax on the sale of electricity from nonresidential EV charging stations into a battery or other energy storage device of an electric motor vehicle. Ask the software manufacturer about their product’s ability to meet this requirement. Learn more about the tax here.

Evaluate the costs and funding options.

These charts can help you estimate the cost of your EV charging station project and potential funding resources:

Table 1: Electric vehicle charging station summary

*Note: Actual project costs may vary based on EV charging station prices, installation costs and services purchased such as warranties.

Table 2: Funding options

For Level 2 EV charging stations, visit the Alliant Energy Marketplace.

All customers: Check out EPA’s ENERGY STAR website for qualifying EV charging stations.

Other funding resources:

• Charging Forward: A Toolkit for Planning and Funding Rural Electric Mobility Infrastructure (transportation.gov)
• Search for more federal and state incentives

Contact Alliant Energy and an electrician to schedule a site visit.

Send the necessary information.

Before the site visit, we ask that you provide the following information to Alliant Energy and the electrician:

• The type of EV charging station.
• The number of EV charging stations being installed now and in the future. If you are likely to add more stations in the next 10 years, mention this. It costs less to purchase and install equipment once rather than multiple times. You'll want to know all your options before construction begins.
• Where you are planning to install the EV charging station.
• Your timeline for installing the EV charging station.

Have your questions ready at the site visit.

During the site visit, here are some of the questions you may want to ask:

• What infrastructure upgrades are needed?
• How much will the upgrades cost?
• What would be the cheapest place to put the EV charging station?
• What is the timeline for getting equipment and installing it?
• How much of the cost would a construction allowance cover?

Note: If you want to install a Level 3 EV charging station and have single-phase power to your site, an EV charging station model that comes with a battery might be a more cost-efficient option for you. Work with Alliant Energy and the EV charging station manufacturers to evaluate the best solution.

Work with Alliant Energy, the electrician and other vendors to complete the electrical and civil construction to support the EV charging station. Work with the software platform provider to commission the EV charging station and resolve any problems.

When everything is completed, make sure the EV charging station works by plugging in an electric vehicle. Work with the electrician and EV charging station manufacturer to resolve any problems.

• Learn more about hosting and installing electric vehicle charging stations.
• Resources for multi-family charging stations.
• Email the Alliant Energy Electrification team.

What if I only want a specific group of drivers (i.e., employees or guests) to be able to use the EV charging station?

Access to the EV charging station can be restricted. The software platform provider will be able to set up access/restriction solutions that work best for you.

How do I set up fees to use the EV charging station?

Two main structures are used to set up fees on an EV charging station:

1. Fees based on kilowatt-hours (kWh).
2. Fees based on time.

The software platform provider will be able to set up a fee structure that meets your needs.

In Iowa, an EV charging station serviced by the electrical grid are able to charge fees by the kWh. An EV charging station served by a form of self-generation (such as solar energy) may be considered a public utility for charging drivers by the kWh.

In Wisconsin, the current interpretation is that only public utilities are able to charge customers directly by the kWh for using electricity (Public Service Commission [PSC] Chapter 196.) Time-based fee structures are the best solution at this time to charge drivers for using the EV charging station in Wisconsin.

How do drivers pay to use the EV charging station?

Most software platform providers require drivers to create an account linked to a method of payment. Drivers can access their account through a website, a mobile app or a Radio Frequency Identification (RFID) card. Consult with the software platform provider about how fees are collected and how much of those charges would be given back to you.

For an additional cost, equipment like credit card readers that can charge credit cards directly can be installed on the EV charging station. Consult with the EV charging station manufacturer about other payment methods their equipment supports.

What is a networked EV charging station?

A networked EV charging station is connected via Wi-Fi, ethernet or cellular modem. The network connection provides more information about the use of the EV charging station and makes processing payments easier. Consult the charging station manufacturer and software provider about the best network connectivity option for you.

How much does it cost to power a charging station?

In Iowa, time-of-day rates are available that could save money if charging stations are primarily used during off-peak hours. Keeping peak demand lower during on-peak and off-peak hours will save money, especially with Level 3 fast charging stations. Certain software can control how much power charging stations use at any given time and set a maximum demand. Consult with the software provider about these options.

In Wisconsin, time-of-day rates are available that could save money if charging stations are primarily used during low-rate periods. Rates also include a demand limiter that caps the cost of electricity per kWh any time the charging station is used. This is beneficial for sporadically used Level 3 fast charging stations.

Learn more about our electric rates.