ROI on business EV chargers is measured, not quoted. Every input that decides it is yours: installed cost from your quote, energy cost from your contract, and above all utilisation from your own session records once the site runs. Anyone who quotes your site a payback period before it opens is inventing the input that swings the answer. This article sets out the full frame — every cost line, the three kinds of benefit, and one worked example with its invented inputs labelled.
Key Takeaways
- Every ROI input is yours: quote for cost, contract for energy, records for utilisation.
- Separate the benefits: driver payments and avoided fleet fuel are cash; amenity value stays unpriced.
- Utilisation is the swing input — measure it from records after opening, never assume it.
- A worked example counts as illustration only when its invented inputs are labelled.
The Cost Side, Complete
| Cost line | Where your figure comes from |
|---|---|
| Hardware and installation | Your installer’s written quote. U.S. context from DOE figures: a public Level 2 connector runs about $3,500 for equipment plus $2,500 for installation, DC fast charging $38,000–$90,000 plus $20,000–$60,000 — your quote, not the average, is the input |
| Electricity | Your supply contract; the U.S. commercial average of 14.53¢ per kWh (EIA) is only a sense check on your rate |
| Platform and payment services | Your platform agreement, where you run one — service terms, never a line in a charger’s specification |
| Maintenance and repairs | Your service arrangement and the maker’s warranty term (EVDANCE’s is three years), which bounds the early years without pricing later ones |
| Demand charges, where your tariff has them | Your bill and charging pattern — a line that exists only if your contract creates it |
The Benefit Side, in Three Kinds
Keep the kinds separate, because only two of them are cash. First, driver payments: where a platform bills drivers, income is your tariff times your measured energy delivered — both from your records, as our guide to what charging stations charge explains. Second, avoided cost: for your own fleet and staff cars, compare what a mile costs on your electricity price against petrol — the U.S. gasoline average of $4.331 a gallon is context; the saving belongs to the vehicles’ arithmetic and counts only for energy your own cars take. Third, the amenity — customers staying longer, staff valuing the perk. Name it in the decision, but do not invent a dollar value: an ROI figure with a guessed amenity line inside is not a measurement.
One Worked Example, Inputs Labelled
Take a single public Level 2 connector. Its installed cost uses DOE’s U.S. figures — $3,500 equipment plus $2,500 installation, $6,000. Its energy costs the U.S. commercial average, 14.53¢ per kWh. Two inputs are invented for this illustration: a driver price of 45¢ per kWh, and utilisation of 30 kWh per day. The margin is then about 30¢ per kWh, roughly $9 a day or $270 a month, which covers the $6,000 in about 22 months — before platform fees and maintenance, which the frame above subtracts. Now the honest part: halve the invented utilisation and the period roughly doubles. Utilisation is the swing input, which is why it must be measured from your records after opening, never assumed before it. Whether the judgement call is worth making at all is covered in our posts on whether charging stations are a good investment and on charging-station profitability.
Hardware That Produces the Numbers
Measurement needs records, so the charger choice follows the frame. A platform-run station such as the EV-AC03201T (two Type 2 connectors sharing up to 43 kW, RFID, OCPP 1.6J) reports its sessions to the operator platform you contract — its touchscreen is a control surface, not a payment terminal, and its dynamic allocation covers its own two connectors only. Where the return is staff retention rather than driver payments, the EV-ACT5006T wall charger (up to 48 A, NACS, 25 ft, IP65/IP66) serves the unpriced-benefit case. Site plans built on measured inputs start at our commercial charging page or the contact page.
Frequently Asked Questions
What payback period should I expect?
There is no quotable figure. Payback is installed cost divided by measured margin, and the utilisation inside that margin is knowable only after your site has run. Treat any vendor-supplied period for your site as marketing, not measurement.
Should the amenity value count in the ROI?
Keep it out of the cash arithmetic. A charger can be worth installing for customers or staff when the cash case is thin — but decide knowingly, with the amenity named as unpriced, not dressed as revenue.
When can I first measure a real ROI?
After a full season of session records. Re-run the frame with measured utilisation, your actual tariff income and your real bills; a first quarter, annualised, usually flatters or punishes the site unfairly.
Related Reading
- Are EV Charging Stations a Good Investment?
- Is an EV Charging Station Business Profitable? An Honest Breakdown
- How Much Do EV Charging Stations Charge?
- How Much Does It Cost to Install a Commercial EV Charging Station?
