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Joulo referral code › Experience

Four months of Joulo, two cars, one charge point

I have been registering the kWh I charge at home as ERE through Joulo for four months now. Here is what that means in practice: which kit sits behind it, how it went month by month, and what you can realistically expect.

By Wouter · my own experience, no partnership with Joulo · updated 19 September 2026

My verdict, briefly

It works, and after signing up I never notice it. That is exactly what you want from something like this: it runs in the background and money arrives for electricity I was charging anyway. In four months I have not had to touch it once.

What I dreaded most beforehand was connecting my charge point, because it runs through Eneco as Charge Point Operator rather than straight from me to Joulo. That turned out to be entirely unnecessary. I only had to enter my Eneco password and the connection was live. No tickets, no waiting, no hassle.

What I have behind it

Plenty of experience write ups skip this, even though it is the thing that decides whether something goes smoothly. This is my situation:

Car 1Kia EV6
Car 2Tesla Model Y Long Range AWD
Charge pointAlfen, single unit
Charge Point OperatorEneco
ConnectionMy own meter at home, in my name
With Joulo sinceFour months

Two cars on one charge point is the part worth mentioning here. For ERE registration it makes no difference which car is plugged in, because Joulo looks at the meter inside the charge point, not at the badge or the number plate in front of it. So the EV6 and the Model Y simply go onto one pile, and that is exactly right. I do not have to split anything or keep track of anything.

Worth knowing: the Alfen has a built in MID certified kWh meter. That is the requirement ERE falls over on if your charge point does not have one. Had I been using a simple socket charger, this story would have ended right there.

How it went, month by month

Not as a brochure, but in the order it actually happened.

  • Day 1 · signing up and connecting

    The account takes no time, the form asks very little. Then you connect your charge point. In my case that runs through Eneco, and it came down to entering my Eneco password. Done. The connection was live the same day and that was the whole technical part.

  • Month 1 · the first sessions

    My charging sessions appeared in the overview and from that point on I have done nothing to it. No meter readings to submit, no photos, no forms. That part of the promise holds up.

  • Months 2 and 3 · just letting it run

    Charging as always. The EV6 during the week, the Model Y a bit more at weekends. I looked at the dashboard occasionally, more out of curiosity than necessity. There is nothing else to do.

  • Month 4 · the first settlement

    Payouts happen quarterly, so you do need some patience before anything shows up in your account. Good to know in advance: this is not a service where you notice something after two weeks. It is quiet, and then an amount arrives.

Setting expectations. The ERE price moves with the market, so what a kWh earns is not fixed and varies per period. I am deliberately not calculating here what you will get, because that depends on your usage and on the market price at the time.

What I dreaded beforehand

One thing turned out fine and one thing is simply how it is. This is the part I would have wanted to read before I started.

A CPO in between: no problem whatsoever

Turned out fine

My Alfen is managed by Eneco as Charge Point Operator, so the charging data goes to Eneco first rather than straight from my charge point to Joulo. I expected most of the trouble to be here. In practice Joulo asked for my Eneco password, and with that the connection was done. No support, no waiting time, no forms. So if you also charge through Eneco, this is not something to dread.

Your charge point really does need an MID meter

Simply how it is

No MID certified kWh meter in the charge point, no ERE. It is that simple. Check that first, before any other step, because it is the one point you cannot change without buying a new charge point.

Two EVs, does that matter?

For the registration: no. I wondered beforehand whether I would have to set something up to keep the Kia and the Tesla apart, or whether a second vehicle would cause problems. Neither is necessary and neither happens. The charge point measures kWh, and kWh are kWh, whatever is plugged into it.

What it does do: two electric cars on one domestic connection simply means more kWh charged at home than with one car, and the revenue scales with that. So for a household driving fully electric this is more interesting than for someone with one car who also rapid charges on the road a lot. Public charging does not count. Only what goes through your own meter.

Would I do it again?

Yes, and the only thing I would change is starting sooner. I put it off longer than necessary, mainly because I assumed that Eneco connection would turn into a project. In the end it took less time than reading this page.

My main observation after four months is fairly boring, and I mean that as a compliment: there is nothing to report. It runs. For something that produces money from electricity I was using anyway, "I never think about it" is the best praise I can give.

What I am not going to do is promise you an amount. Your revenue depends on how much you charge at home and what ERE is worth at the time. The main page explains how ERE certificates work and roughly what the payment per kWh is.

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