Exporting your charging data, brand by brand
Here's how to pull your charging sessions (date + kWh) from your charger's app or portal, and paste them straight into the free calculator in the right format.
Wallbox
Exporting session statistics happens through the Wallbox Portal (my.wallbox.com), not directly from the myWallbox app — the app only displays statistics.
- Log in to the Wallbox Portal.
- Go to Sessions.
- Select the session(s) or date range you need.
- Click Export. A CSV file is downloaded.
With a Business plan you can also enable Automatic Reporting, which emails you a monthly CSV report automatically.
Source: Wallbox Help Center — How to download your charging sessions' statistics from the Portal (accessed October 2026).
Alfen (Eve chargers)
Alfen Eve chargers work with two apps: MyEve (aimed at the installer, only for NG-platform devices) and Eve Connect (the driver/owner-facing app, linked via the ACE Service Installer).
Via the MyEve app (installer):
- Open the Basic tab.
- Click Transactions under "Operations".
- Select Manage at the top, then click Export.
- Enter the start and end dates, then click Download transaction — this produces a CSV file you can open with Excel or Notepad.
Via the Eve Connect app (driver): it lets you "export a summary of past charging sessions for billing purposes". The exact steps and which columns are included aren't detailed in the public documentation we could find — if you can't locate an export button, contact your installer or CPO.
Source: Alfen Service Portal (ACE) — Questions about the Eve Connect app (accessed October 2026).
Easee
The most detailed export runs through Easee Control (the web portal), not the Easee app itself — the app mostly shows charging on your own account.
- Log in to Easee Control.
- Go to the Report / Consumption section.
- Choose the report type — for individual sessions, pick a Detailed Report (by user or by charger).
- Choose the time frame and export as Excel, CSV, or PDF.
Easee also offers summary reports (User Summary, Charger Summary, Energy Summary) — for the calculator you need the more detailed variant with date and kWh per session.
Source: Easee Help Center — Easee consumption reports: view, export and understand charging data (accessed October 2026).
Smappee
- Log in to the Smappee dashboard (dashboard.smappee.net).
- In the left-hand menu, choose the "Public charging" board (or "Chargers" if you manage your own CPO installation).
- Scroll to the "All charging sessions" card.
- Use the three-dot menu in the top-right corner if needed to pick the columns you want (such as date and kWh).
- Click the download icon to export as Excel or CSV.
Source: Smappee Support — How to view and export all your charging sessions (accessed October 2026).
Zaptec
- Log in to the Zaptec Portal.
- Open the relevant installation and go to charging history / charging report.
- Choose the time period and optionally group by charger, user, or RFID/charging card.
- Export the report (Excel).
Only installation owners and users with the right permissions can export reports. A simpler charging history view is also available directly in the Zaptec app.
Source: Zaptec Help Centre — How to view charging history and reports in Zaptec Portal (accessed October 2026).
Tesla Wall Connector
The Tesla Wall Connector itself doesn't have its own account with a clean per-session CSV export like the other brands above. For home-charging a Tesla, the most useful screen is the Charge History tab in the vehicle's own Tesla app: it shows the date and the number of kWh added per session.
Tesla's own documentation describes a general "Download My Data" feature (via the three-dot menu on the Energy screen) that exports data as CSV for a chosen time period. We could not confirm in the public documentation, however, that this export file cleanly contains one row per charging session matching what the Charge History view shows — some users report discrepancies between the two views.
Source: Tesla Support — Energy Data in the Tesla app (accessed October 2026). This page covers energy data in the app generally; we could not find specific documentation describing a per-session CSV export for the Wall Connector.
Via your car's own app
Many electric vehicles show a "charging history" in their own manufacturer app (for example MyRenault, MyBMW, MyVolvo, MyDacia, MyPeugeot, MG iSMART, Mercedes me, ...) with the date, location, and kWh added per session. This is handy if your charger itself doesn't have a separate meter or app. Not every manufacturer app lets you export that data as CSV — you can often copy it manually instead. Because this varies a lot by brand and app version, we haven't individually verified every manufacturer app; check the charging history section in your own app.
Charge card or your employer's backoffice
If your employer gives you a charging card for on-the-road charging (for example a card working on networks such as Blue Corner or Optimile), it usually runs through a "backoffice" platform that automatically registers and settles charging sessions. Many of these backoffices are built along similar lines to the example below.
Example: the E-Flux backoffice
- Go to My cards → My usage (sessions per charge card) or My locations → My usage (sessions per charging point).
- Choose the desired time period.
- Download the file as CSV or Excel (XLSX).
Source: E-Flux Help Center — How do I export my charging sessions to Excel? (accessed October 2026).
From export to calculator
Whichever file you export, the calculator only needs two pieces of data per charging session: the date and the number of kWh. Each line must contain only the date followed by the kWh value. So before pasting, delete all other columns (cost, session ID, duration, location, username, time, ...) — extra columns are not ignored and cause an error or a wrong value.
Accepted date formats
dd/MM/yyyy— e.g. 01/06/2025yyyy-MM-dd— e.g. 2025-08-04d-M-yyyy— e.g. 2-6-2025dd.MM.yyord/M/yy— e.g. 01.06.25 or 3/6/25
Accepted kWh notation
- Comma as decimal separator:
23,4 - Dot as decimal separator:
23.4 - Whole numbers:
30
Separate the date and kWh with a tab or space, or use a
semicolon: 01/06/2025;23,4. A comma does not work as a
separator (01/06/2025,23 is rejected) — the comma is only meant as a decimal
separator.
Copy-paste example accepted by the calculator
01/06/2025 23,4 2025-08-04 16,36 2-6-2025 15.8 3/6/25 30 15/06/2025 18,2
Copy the date and kWh columns from your export (for example in Excel) and paste them in this format into the calculator's input field — one charging session per line.
Ready to calculate?
Paste your exported charging data into the free calculator and download a PDF report right away.
Go to the calculator Guide for company directorsRelated guides
How to claim EV charging costs as a self-employed person in Belgium
What self-employed individuals in Belgium need to know about claiming charging costs.
As a self-employed professional in Belgium you are entitled to a refund for the electricity you use to charge your company car at home. Using the official quarterly CREG rates, this calculator works out the exact amount from your recorded charging sessions. You can export the result to PDF and forward it to your accountant.
Read more ➜Which CREG tariffs apply in my region?
Find out which CREG rate applies to your region: Brussels, Flanders, or Wallonia.
The CREG publishes maximum reimbursement rates per quarter for charging sessions. These rates vary depending on your region: Flanders, Brussels or Wallonia. Our calculator applies the correct rate automatically to ensure accurate results.
Read more ➜Example EV charging cost invoice (PDF)
Download an an PDF invoice based on your load data.
This tool lets you easily export an overview in PDF format, including date, kWh charged, rate and refund per charging session. Enter your name, address and vehicle details to generate a ready-to-use report for your accountant or tax filing.
Read more ➜