OK thanks its interesting.
Sorry Yes you do need the Hub to do a software update, but its free when you do it.
People who have the Hub can get printouts over time of their performace, and the particular operation which you showed hasnt been shown by any person for significant periods.
At least not on the latest software, and im not aware before that.
The region_in_question that you show is a pretty short period....if it was shown to go on longer then would make me look my head up.
The point is that over the course of a year, how much extra electricity would have been "spent" like this?.......and i bet its very very small.
So all i think from looking at the video, is that there is a temporary "thing" going on there, but over the course of a year, maybe a few extra pennies of electricity would have been drawn
from the grid when it should have been coming only from solar. In your video , It seems a shame that the car was removed when it was...it would have been interesting to see if that operation continued....i doubt that it would have. I am pretty sure they have a watchdog which clears these kind of things, and lets not forget that all items are susceptible to noise interference at times....so unless prooven otherwise, i reckon the watchdog would have cleared that situation, and over the course of a year, just a few extra pennies of electricity would have gone into your car from the grid.
It would also be interesting if you got a new unit with the latest software and it happened again, but i doubt it would.
The chargepoint market in UK at the moment is festooned with chargepoint startups, and if there were significant problems with Zappi, you can bet youtube would be stuffed full of people demo'ing any significant fault that they found...but that isnt the case.
I am only being honest in saying....Myenergi have sold many thousands of Zappis, and have many thousands of satisfied customers. And many are the sort of curious, or even "fussy" customers who are hovering over their power meters throughout the day, and looking for anything unusual..and even these types of people are well happy with Zappi.
The entire “renewable energy optimisation” space (ie what Zappi/Eddi/Harvi/Hub/App do) is pretty well originated by Myenergi...and their founders were in this game even long before they created Myenergi.
And as discussed, Myenergi have brought PCB assembly in house now, and its much finer tuned now.
Also, i thank you for telling that it is quite an old software version that you have there. You also kindly tell that the unit was not provided from Myenergi Australia. Also that your distributor did not put the latest software on for you at the time of sale. (its a little concerning that the distributor hasnt got a Hub in so they can quickly shovel the latest code version in before shipping the product off. (it doesnt take long to up-code it, and it is not hard to do) I'm not certain, but i think the Zappi can actually be programmed to go into "Max charge" for the first hour or so of ECO mode, and this when its just recently come out of stop mode.....this is because say in non-sunny UK eg, if you just use ECO mode alone and you suddenly need the car......it might not have enough charge....so if stop mode is followed pretty soon by ECO mode, then it can be programmed to actually go on Max charge for a while so as to get some decent charge level into the car battery before settling back into ECO mode proper.......i'm not totally certain, but i have an inkling that Zappi can be programmed to do that...(well i'm pretty certain that it could be programmed to do that) and i wonder if thats whats going on here, but i dont know.
(i'm taking "ECO" mode as that mode that changes only from excess solar....i couldnt be sure thats what "ECO" mode really is)
The Myenergi Eddi is good for many situations....including eg, if the family are all out in the daytime, and the EV's are'nt there either, then your house would be using very little electricity during daytime, and so your solar would simply be exporting. But you can then set the Eddi to divert that solar export into your boiler, so you can heat your water up with that otherwise "wasted" solar energy. You couldnt just do this with say just a cheap timer, as in UK, sometimes its not very sunny at all, so a cheap timer would be heating your boiler from the grid during those non-sunny days....and you wouldnt want that....in that situation, you would rather wait till cheap night rate electricity started and then heat your boiler water...and the Eddi will sort all this out for you.
That's just insane. I purchased it from the major Australian dealer.
OK sorry about that, i really do enjoy your teardowns and stuff, and am grateful for them, and hope to see many many more....must admit i dont agree about the Zappi, which i think is a great product, but no probs about that.