Electric vehicle home charging setup

I had a long hard think about my perfect Electric Vehicle charging setup. This is what I got installed today. But first, some more information.

I gave up on gasoline and switched to all electric driving. It's been a blast on all levels & the only worry I have is that it's too fun to drive & I need to watch out for the heavy foot. Range anxiety is not important and driving away every morning with a full tank is a wonderful experience. That does mean I need to charge my car at home.

The classic outlet delivers 13A in my place, and if I connect a wallcharger, I can get 20A into the car. I don't have 3phase or heavier electricity and I don't believe the upgrade will be worth it. That being said, my setup is future proof there too

My Prerequisites

I built my setup on a couple of prerequisites.

  • I want to pass the charging bill on to the company. Via mail charging reports that are updated in a math sheet.
  • I didn't want an expensive fugly charger with monthly fees.
  • I currently use TeslaFi (feel free to use the "ProbeerEens" referral code) & it works perfectly. But I wanted to future proof & have that functionality wired in.
  • I wanted the count to be mailed, no stuff with sending photos etc. (aka the hard part)
  • I have a light(ish) monophase connection.

The search was honestly considerable. From dumb meters to expensive ones; awesome Sonoff kit that doesn't meter beyond 13A, .. People in the know of electricity promised me it would be extremely expensive to get such a setup. In the end tho, stubbornness prevailed.

The Setup

Installed by a wonderful local electrician, Glen. Check out his Facebook for installation photos and how to find him.

A Tesla Charger

I like how pretty the tesla charger is. It reminds me of a cylon. Absolutely nice. Day and night difference compared to those fugly (yes, I went there) commercial chargers; bland white boxes with gaudy accents and lights. Ugh.

It's one device, takes all types of connections and has an internal dial that sets it to whatever your wiring can take. (That 20A in my case)

A counter

I wanted a counter that was on the live wire, had a pulse out (more about that later) and that has a nice screen for the horrible eventuality where I do need to manually send the counts via photos because all else failed.
I didn't get a clamp one that goes on the

I got a "Velleman COMPTEUR ENERGIE ELECTRIQUE kWh MONOPHASE POUR MONTAGE SUR RAIL DIN - 2 MODULES EMDIN02"

There are many of these; I got a basic version. This was not the hard part.

The Teleinfo module

This is the magical hard part. The part that needs to know the count, and that needs to remember the info and pass it on via the internet. I ultimately found this one.

Module IP de suivi de consommmation Eco-Devices - GCE Electronics http://gce-electronics.com/fr/nos-produits/409-module-teleinfo-eco-devices.html

This little box goes next to the counter in the fuse box. The "Module IP" connects to the pulse interface on the counter and registers its pulses. It connects to an ethernet wire and offers a web interface that visualises the data, supports webhook URLs and can mail the data around. There's CSV exports and some xml stuff too. It'll also measure other electrical counters, water and other measurable usage, but that's beyond my setup. I wanted this next to my charger for easy access.

Ultimately

My setup is fresh. The hardware is newly installed and the first charge is happening right now. The counter is counting, the teleinfo is registering but yet to be configured. I am reconfiguring part of the home network to expand into the garage. (using a POE wifi access point with & wan and lan cable but that's a different post)

I have a working TeslaFi setup and my document for the short term will now have 2 metrics for each charge. The car data and the counter data. There shouldn't be any difference, and I'm looking forward to having that data visualised.

Usage experiences will follow; keep an eye on this space.