Why are some of our charging sites underperforming – and what should we do about each one?

Utilisation – the share of available time a charge point is actually in use.
Demand-constrained site – earns little because not enough drivers come.
Capacity-constrained site – drivers come, find every charge point busy, and leave.

A common way to review a charging network is to rank sites by revenue and look at the bottom of the list. That list mixes two very different problems.

I’ve spent the last six years in EV charging infrastructure at SWARCO and E.ON, including building a utilisation model across ten markets. Site performance data is where most network decisions start – and where they most often go wrong.

Demand-constrained sites need pricing, visibility, partnerships – or, eventually, exit. Capacity-constrained sites are turning revenue away, and the fix is more charge points, not less investment. A revenue ranking can’t tell them apart.

One more trap: sites with nearby competitors often show higher utilisation, not lower. That’s selection, not cause – operators build where demand already is.

I built a portfolio Power BI model around this classification, on synthetic data: every site classified by utilisation and how often it is fully occupied, and at which hours. Happy to walk through it.

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