I have a BLUETTI EP600 + 2×B500 system with 16 solar panels (two arrays / two MPPT inputs).
Currently I’m facing the following issue: solar generation is not used as a priority while the grid is available. Even when there is good sunlight, the house continues to draw power from the utility grid, and the PV power is barely used.
In practice, the solar panels start powering the house only if I manually disconnect the main grid.
I would like the system to work with the following priority:
Solar panels → house loads (priority)
Excess solar → charge the battery
If solar is not enough → take the deficit from the grid
At the same time I want to keep the battery around 80–90% as backup in case of a grid outage.
Questions for EP600 owners:
Which settings in the BLUETTI app should be configured so that PV becomes the primary energy source?
Is this related to SoC Low / Work Mode / Grid charging settings?
Is there a specific inverter operating mode that should be enabled?
I would really appreciate if someone could share their configuration or screenshots of the settings or advise me about possible solutions?
What does your ‘Working Mode’ look like? Do you use the ‘Schedule’ function? If so, what settings have you chosen? Please post a screenshot of the app here.
What settings have you chosen for ‘Energy Buying/Selling’? A screenshot would be helpful…
In general, it can be said that the batteries are only charged with mains power:
if the SOC is lower than SOC high (above that, they are only charged with PV)
‘Charge From Grid’ is active
I’m not sure about SOC lower than SOC low, but it may be that the ‘empty’ battery (because it is below SOC low) is charged with priority from the grid …
I haven’t tested this yet, or in the cases where I have fallen below this, it still didn’t charge from the grid because I don’t have ‘Charge From Grid’ active …
I’m afraid you want to achieve two conflicting goals:
Only charge with PV, but at the same time keep the battery above 80% (for backup).
What do you think the EP600 should do when there is too little PV AND the SOC has fallen below 80%? Charge with the grid or wait for PV?
I have a Bluetti EP600 with 16 solar panels. I want to cover my consumption with solar power during the day, and when there’s no sun, I want to use energy from the grid. Can this setup be configured automatically? Is simultaneous usage of solar and grid power supported, or do I have to disconnect from the grid when there is sun? Foto with current settings attached.
PV electricity first goes to consumption, and whatever is left over charges the battery. Once the battery is full (100%), the PV electricity goes into the grid (unless the inverter regulates it beforehand).
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If consumption is higher than the PV electricity (if available at all, due to snow, fog, nighttime, etc.), the rest comes from the grid.
Unless (!) the battery is below SOC low, in which case the battery supplies the electricity for consumption. This makes sense, because if the battery has been charged with PV electricity, you want to use it yourself.
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To answer your question, yes, this works without any special configuration. If [Time of Use] is deactivated, the EP600 does everything by itself (automatically); you only need to set the SOC limits according to your needs.
However, if you want the EP600 to always remain full and not provide any power for consumption, you will need to play around with the settings under [Energy Buying/Selling]…
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PS: Do you have the latest versions of the EP600 and the app? Some of the terms in the menu and on the switches are different on my device (e.g., Discharge instead of Peak).
Yes, I have the latest version — 3.0.6. With the settings shown in my photo, the EP600 always takes power from the grid and does not prioritize solar energy for consumption.
Here is how I test it: for example, if the consumption is 600 W and the solar panels generate 300 W, then 300 W should come from the grid and 300 W from solar.
But what actually happens is that the app shows that all 600 W are taken from the grid. As soon as I disconnect the grid, everything works as expected — 300 W from solar and 300 W from the battery.
Right now I have 10 kW of solar panels installed, and during the day the only way to prioritize solar energy is to disconnect the grid manually, otherwise the system keeps charging or supplying from the grid instead of using solar.
Could you please advise what I might be configuring incorrectly? I have already run out of ideas about what else I could try.
I’m attaching photos. In the first one the grid is disconnected and solar power is working. In the second photo the grid is connected, but everything shows 0, and as I understand the power is coming from the grid.
