i have a problem with my EP2000 thats driving me crazy and i dont found a solution for it yet.
The custom working mode is enabled with SOC from 20% to 97%. Grid Feed In is enabled.
Expected behavior would be, that the battery would be charge until its reached 97%, feed all the power is needed to my house and the rest would be exportet to grid.
At the moment, the following happends (example):
Battery SOC: 59%
PV Income: 7kW
Consumption: 450W
Grid Export: 4kW
It doesnt make any sense for my, why 4 kW at this point went to the grid, when the battery isnt nearly full. Disable Feed in result in 3kW of Solar Power instead 7kW. It just cut the power that would be exported otherwise. I didnt found a specific trigger. I first assume the colder temperatures would be the problem, but now the battery have a temperature of 10 - 15 degrees celcuis which should be perfect.
Someone experience the same and have a fix for it?
Firmware is up to date:
IOT: v9052.24
HMI1: v6062.22
HMI2: v6063.05
ARM: v5032.18
DSP: v5030.18
Safety Module: v1076.05
BMU: v1075.05
BCU: v1074.11
Hello Erik,
You don’t happen to have a schedule with ‘Discharge’ active and ‘Feed Into Grid’ configured with 4kW at the same time, do you?
I only have the EP600, but with this configuration, the EP also exports for me, even though the SOC high limit has not yet been reached…
OK, could have been…
On my EP600, changes to ‘Time of Use’ and ‘Energy Buying/Selling’ sometimes get ‘stuck’. I think I’ve configured everything correctly, but it doesn’t always get applied (?).
Sometimes the only thing that helps is a complete restart of the EP, then the settings are definitely applied. Of course, this could just be a quirk of the EP600. I’m always careful when I change something there, double-check everything and observe whether the behaviour of the EP matches my settings.
.
But I’m curious to hear what support has to say about your problem.
It seems to have something to do with the temperature of the batterie cells.
As i reported the issue, the cells where about 10 - 13 degrees celcius. This is under the sweetspot (15 degrees) thats written down for batterie heating. Today, the cells have around 17 degress celcius, which is above 15 and everything works as expected. This problem happens in the same way on EP600 and EP760 from what i read in different places.
Just cant be right, that a 20kwh Solarsystem can only use 1/4 of its power, when temperatures are only near 15 degrees and not 15 degrees and warmer.
Interesting, thank you for the additional information.
Since I have been using two EP600s in ‘off-grid parallel’ mode, I can no longer view the detailed information about the battery cells in the app. I therefore have to ‘guess’ how low the cell temperature would be at the moment in order to verify your observation.
However, I have not yet been able to access the full power of the EP600 in winter, as I usually switch it off to minimise the EP’s own consumption and keep a ‘silent’ reserve for emergencies.
.
PS: What about the battery heater? When ‘Feed into Grid’ is active, is it active at low temperatures and powered by the battery? Or is it off because no electricity is being drawn from the grid?
Dont have the information in the App either, i pull it from the Bluetti cloud. Its hidden by default for all App users and meant for view by bluetti.
i turn on the heater and it should work without active “grid charge” option. It did for me in the really cold days. I just assume that like 10 degrees is not cold enough to trigger the heating.
Hello, Thank you for your message. Could you please let us know if you are experiencing any issues with your AC180P? If there are no problems, you can click on the firmware update section in the app to update it yourself.
If you need any further assistance, please feel free to reach out!
