zevOS

01Ebook

The Tariff Design Workbook

Pricing charging on evidence rather than instinct

21 pagesPDF, with the pricing model worked throughUpdated 14 June 2026

What you get

Takeaways

  • Computing landed cost per kWh including the charges that do not scale
  • Choosing between per-kWh, per-minute and hybrid by what is scarce
  • Setting an idle fee that almost nobody pays
  • Segmenting by audience without running two networks

Contents

  1. 01

    Landed cost first

    Energy tariff plus demand charges divided by expected units — and why the second term surprises people.

  2. 02

    Price what is scarce

    Energy on DC, the bay on slow AC, throughput on a corridor. Matching the instrument to the constraint.

  3. 03

    Time-of-day structures

    Mirroring your DisCom tariff, sizing the discount so it actually moves behaviour, and locking the window at session start.

  4. 04

    Idle fees

    Grace period, rate, disclosure and the overnight exception. The measure of success is that nobody pays it.

  5. 05

    Audience pricing

    Walk-up, repeat, fleet, resident and staff on the same connectors, with the rate attached to the group rather than a code.

  6. 06

    Revising on evidence

    The three numbers that should drive the first revision, and the two rules that keep repricing from costing you drivers.

Or skip the reading

We are happy to work through your own numbers directly — that is usually faster than a document.