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2022 Tesla Model 3LR
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Discussion Starter · #1 ·
Have a Zappi 2 being installed on wednesday but looking at installation videos (fun for a sunday evening) I’m now worried I may need additional bits.

I assumed it was a smart charger to qualify for the OLEZ or whatever its called, and all the videos you see show it with the app showing current going from solar to the house or out to the car etc, and they talk about solar PV balancing etc and use of smart tariffs.

But if I’m reading/watching correctly - you can’t do any of this out of the box?? I’m hoping I’m wrong but if not I’ll need to get in touch with the installer asap.

1) Seems like you only get one CT clamp in the box which is needed to measure incoming current from the grid. So if you want to also monitor incoming current from Solar (which I do) - I’ll need a second CT which seems to be an optional extra (no idea how much or whether they’re difficult to get hold of). and of course this is the kind of thing you’d want to get set up at installation time as it needs to connect inside the charger.

2) it seems to have no way to actually use the app they always show, without an additional hub, which also needs to be wired to your network? I have a spare ethernet socket either in the living room or in the spare room closer to the Zappi but is it an absolute requirement?


Is it just a dumb charger wiht a manual timer without these two things? I guess if I’m on something simple like a fixed off-peak tariff I can manage with just the additional solar CT and then using eco/eco+, although I would like to be able to monitor the solar via my phone (as the inverter is in the loft so I rarely see it)
 

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Discussion Starter · #4 ·
1) Yes you'll need another CT if you want to monitor solar generation - £15 as per the MyEnergi website.

2) Measuring solar gen is fairly irrelevant unless you get the Hub. Not essential, unless you want to track the stats on your system and monitor Zappi behaviour, etc.

I don't have the Zappi yet, but it still functions as a smart charger without the hub, but you have to do everything on the charger itself, rather than the comfort of your living room.

FYI - it works by detecting export power to the grid. So doesn't need to measure solar gen to work properly.
ah so for eco mode it can effectively work by detecting ‘am I exporting more than 1.4kwh to the grid?’ and switching based on that? that could work. I still think I’d like the monitor for my own visibility of what the panels are doing but good to know
 

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Discussion Starter · #7 ·
distance shoudl be ok - I think its only around 3-4m from the consumer unit to the charger, although will depend on the run used. Hopefully the installer will have all the necessary
 

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Discussion Starter · #9 ·
MrCharger got back really quickly and confirmed the Hub is included (Myenergi - please update your box contents on your website) and they carry spare CTs
 

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Discussion Starter · #11 · (Edited)
To be clear, from my experience you do not get the Hub in the box with the Zappi, they are separate products. Your installer will order and install both as part of your OLEV compliant install. Anyone ordering a Zappi direct from Myenergi isn't going to get a Hub included in the box.
fair enough - EV installers please be clearer what you’ll supply :)
 
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