Hi, I’ve just had a new system installed, 9.5kwh Gen 3, Hybrid 5 and it is constantly charging the battery when it’s only dropped a couple of percent. I’d like it to discharge to a certain %SOC before it starts charging again, but also not be exporting from the battery to grid as a forced discharge.
At the moment I’ve stopped it charging, but then when the house load is over the solar input, it’s pulling it from grid.
If anyone has any ideas it would be appreciated.
Cheers
Whats the motive for your query? Is it based on preserving battery health? Or something else?
Yeah basically. Most of the time we’re going to keep sitting at 90% plus
That would be a feature request - theres no option to provide a battery SOC threthold for solar charging.
The main consideration (which I dont have any expert knowledge of) is whether such shallow discarge / charge senareo actually degrades battery health sufficiently to make such a feature warranted.
I`ll leave the experts to wade in, but Its very possible this is a solution in search of a problem. Given that GivEnergy offers a 10-year unlimited cycle warranty thats a pretty strong indicator that their systems are built to handle frequent cycling, even daily.
The GE system s set up to keep the batteries topped from solar whenever possible, so you can use it when the sun don’t shine.
Doing that can drop your grid usage by up to 70%.
(We charge ours up overnight too during the cheap slot - EV tariff).
It’s the way Eco mode works.
Enjoy the sunshine, as with winter rain you won’t be sitting at 90%
You can do this using home assistant on something like a raspberry pi. However that is a very deep rabbit hole you will go down for very little benefit.
For GivEnergy to off such a warranty, the battery at 100% is probably not 100% charged - the BMS uses 9.5kwh out of 10.5kwh