No Metering Hardware Required

A basic wall outlet or a simple Level 2 station delivers the same amount of power from the moment a car plugs in to the moment it unplugs. It doesn’t speed up or slow down based on the car or the battery. Which means you don’t need a meter to know how much electricity was used. You just need a timer.

EVnSteven tracks how long each session lasts and multiplies it by the outlet’s power level to calculate the cost. No extra hardware, no installation, no ongoing maintenance.

The result is accurate enough for fair billing — the difference from a direct meter reading typically amounts to a few cents per session. Some property managers ask their electrician to verify the actual draw at each outlet before going live using a current clamp — a handheld tool that clips around a wire and reads the current flowing through it, without cutting into anything. It’s a quick one-time check that confirms the math and puts any doubt to rest.

We’ve heard from property managers who went the other route — buying networked stations with built-in meters before finding EVnSteven. Here’s what that looked like: $5,000 or more per station, monthly network fees, transaction fees on every charge, and residents paying double the going rate for electricity. Some buildings also paid for major electrical upgrades they didn’t need, after assuming EV demand would be far higher than it turned out to be. Most residents just needed a regular outlet to top up overnight. The vendors knew that. They just didn’t mention it.