The EV charging data every fleet manager should be tracking

Most fleets have plenty of EV data and very little insight. Telematics gives you miles. Charge point operators give you sessions. Payroll gives you a number. Almost nobody joins them up.

These are the metrics worth joining up first.

1. Home versus public charging split

This is the single most useful number in an electric fleet. It drives cost per mile, it drives reimbursement accuracy, and it tells you which drivers are quietly overpaying. Track it per driver, not as a fleet average, because the average hides exactly the people you need to help.

2. Real cost per mile, by driver

A fleet-wide pence-per-mile figure is an assumption. A per-driver figure built from actual charging cost is a fact, and it usually reveals a spread far wider than expected between the most and least expensive drivers.

3. Reimbursement variance

Compare what you paid drivers against what their charging actually cost. Persistent over-payment is a tax exposure; persistent under-payment is a retention problem. Both are invisible without the comparison.

4. Charging dwell time

How long vehicles sit plugged in versus how long they need to. This is where depot charging capacity is won or lost, usually without any new hardware.

5. Session failure rate

Failed or abandoned public charging sessions cost drivers time and cost you goodwill. A rising failure rate on a particular network is a procurement conversation, not a driver problem.

6. Evidence completeness

For every business mile reimbursed, could you produce supporting charging evidence if asked? If the answer is "for public charging, yes, and for home charging, no," that is the gap to close first.

Turning the data into a process

Reimburse captures home, workplace and public charging cost per driver and produces an HMRC-compliant reimbursement figure with the evidence behind it. For personal EVs, salary sacrifice charging removes the claim process entirely by paying for charging from gross pay.

Next steps

To see the reporting against your own fleet mix, book a demo.