The depot's night report and one reimbursement
The night of stops 03 to 07 as the backend reports it: one page per night for the depot, and once a month one statement per employee who charges a company car at home.
Both are composed in the form such reports take. The numbers are the ones the stops of this path used.
The questionWhich lines came from the chargers, which from the vehicles, and which does the payroll department need?
Guess firstThe report says 912 kWh were delivered, the plan said 900. Is that a problem?RevealHide
No. The plan is an average of 30 kWh per van; the night's spread, from 19.8 to 41.2 kWh, shows which routes were longer than 120 km. The figure to watch is the charging window: the last van was full at 12:34 AM, more than five hours before the first route.
What you are looking at
The night report joins three sources: the charge points (sessions, status and meter values over ), the vehicles ( from the battery data) and the plan (routes and departures). The reimbursement statement rests on a fourth: the meter in the employee's wallbox, whose readings the company backend collects, and on the German tax rules of stop 05. Select the lines to see where each one comes from.
Eleven lines for thirty vans. The order follows the questions a fleet manager asks first.
- Line 1One night, one page
The backend writes this report every morning from the night's sessions, status messages and meter values. The fleet manager reads it with the first coffee (stop 08).
A composed report with the figures of stops 03 to 07. AutoCharge, identification by the vehicle's MAC address, is one of the token types of OCPP 2.0.1. SuspendedEVSE is its charging state for a connected vehicle to which the charge point offers no energy.
Seven lines for one employee. The same statement exists for every company car charged at home.
- Line 1One employee, one month
The statement the payroll system produces from the wallbox data. The employee drives one of the twelve company cars of stop 01 and charges at home.
A composed statement following the German rules from 2026: a separate meter, the flat rate of 34 cents chosen for the calendar year, public charging reimbursed by receipt in addition. The public sessions arrive as charge detail records with the car's token.
Which line comes from where
- From the chargers. Sessions, energy, the peak, the charging window and the identification: everything OCPP reports, summed by the backend.
- From the vehicles. The readiness check. State of charge is the vehicle's number; the charger only knows what it delivered (stop 07).
- From the plan. The target state of charge per van and the note on next year's capacity.
- From the wallbox at home. The measured kilowatt-hours of the reimbursement, session by session, through the company backend.
- From the provider. The three public sessions, each a with the car's .
What the payroll department needs
Three things, and the statement carries all of them: proof of the energy from a separate meter, the method chosen for the year, and the receipts for public charging. With those, the reimbursement is a tax-free expense for a company car; without a meter it would be an estimate, and for a private car it would be wages. The depot report, by contrast, goes to operations: its one number for the finance side is the energy cost per night, which Business models, stop 06 puts in context.
Check your understanding
3 questions. Answer all of them to complete this stop. Each answer explains itself.
The readiness check says van 09 is at 88%. Where did that number come from?
A charger knows the energy it delivered, not the level in the battery. The state of charge comes from the vehicle (stop 07).
What makes the 212.4 kWh at home reimbursable free of tax under the German rules?
Since 2026 the energy must be shown by a separate stationary or mobile meter; the tax-free reimbursement applies to company cars (stop 05).
The peak was 118 kW against a 120 kW limit. Why does that not mean the depot is full?
The controller uses the capacity it has, so the peak sits near the limit by design. Ten more vans would be full by about 2:40 AM (stop 03).
- OCPP Open Charge Point Protocol: the open protocol between a charger and its operator's backend. EV charging fundamentals, stop 03 Glossary
- CDR Charge detail record: the digital receipt of a session, with energy, duration and tariff. EV charging fundamentals, stop 05 Glossary
- State of charge How full the battery is right now, in percent; not to be confused with the state of health. eMobility and EV basics, stop 02 Glossary
- Token In OCPI, what a driver starts a session with, such as a charging card, a key fob or an app account; it carries the contract ID of the driver's provider. OCPI and roaming, stop 04 Glossary
- Bundesministerium der Finanzen: BMF-Schreiben vom 11. November 2025: steuerliche Behandlung der vom Arbeitnehmer selbst getragenen Stromkosten, Rn. 25 to 31. https://www.bundesfinanzministerium.de/Content/DE/Downloads/BMF_Schreiben/Steuerarten/Lohnsteuer/2025-11-11-selbst-getragenen-stromkosten.pdf?__blob=publicationFile&v=1. Checked 09 Oct 2026.
- Open Charge Alliance: What is new in OCPP 2.0.1? Whitepaper, version 1.0, March 2023. https://openchargealliance.org/wp-content/uploads/2024/01/new_in_ocpp_201-v10.pdf. Checked 09 Oct 2026. Licence: CC BY-ND 4.0.
- Open Charge Alliance: OCPP 2.0.1 edition 4 (December 2025), Part 2 Specification: IdTokenEnumType, ChargingStateEnumType, ChargingNeedsType and the terminology of EVCC; free download. https://openchargealliance.org/download-ocpp/. Checked 13 Oct 2026.
- Bundesministerium der Finanzen: BMF-Schreiben vom 11. November 2025: steuerliche Behandlung der vom Arbeitnehmer selbst getragenen Stromkosten, Rn. 25 to 31. https://www.bundesfinanzministerium.de/Content/DE/Downloads/BMF_Schreiben/Steuerarten/Lohnsteuer/2025-11-11-selbst-getragenen-stromkosten.pdf?__blob=publicationFile&v=1. Checked 09 Oct 2026.
- EVRoaming Foundation: OCPI 2.3.0, CDRs module: CDR object and CdrToken class. https://github.com/ocpi/ocpi/blob/2.3.0/release/core/mod_cdrs.asciidoc. Checked 09 Oct 2026.
- Bundesministerium der Finanzen: BMF-Schreiben vom 11. November 2025: steuerliche Behandlung der vom Arbeitnehmer selbst getragenen Stromkosten, Rn. 25 to 31. https://www.bundesfinanzministerium.de/Content/DE/Downloads/BMF_Schreiben/Steuerarten/Lohnsteuer/2025-11-11-selbst-getragenen-stromkosten.pdf?__blob=publicationFile&v=1. Checked 09 Oct 2026.