01Free toolkit
The CPO business toolkit
Three models that every charging operator eventually builds for themselves, badly, at two in the morning before a board meeting. Here they are with the reasoning attached.
What is in it
Three tools, one argument
The unit-economics model
Landed cost per kWh including demand charges, contribution margin, and break-even utilisation solved for rather than revenue projected. The assumptions are written down at the top instead of buried in cells.
Try the online versionThe site-selection scorecard
Eleven weighted criteria with the three that override the rest, plus the questions to put to a host and to your DisCom before signing anything.
Read the methodThe uptime SLA template
A definition of availability measured at the connector that survives negotiation, with the exclusions that keep a host’s own power failures off your number.
Read the reasoningThe argument underneath
All three tools say the same thing in different ways
Charging economics are dominated by fixed costs that do not scale with usage — demand charges above all. That single fact determines that site selection matters more than pricing, that uptime is a margin lever rather than a customer-service one, and that reducing sanctioned load through smart charging is worth more than most feature decisions.
- Solve for break-even utilisation rather than projecting revenue
- Derate rated power — nameplate is not delivered
- Treat demand charges as the fixed cost they are
- Measure uptime at the connector, and keep the outage list
- Prefer revenue share to fixed rent until utilisation is proven
Get the toolkit
The toolkit, by email
The calculator and the guides on this page stay ungated. The toolkit comes by email so we can send you the revision when the models change.
Work through a real site with us
Bring a location you are considering. We will go through the DisCom questions and where the model is most likely to be wrong.