I cannot be the first to be confused over the difference between solar priority and SBU.

1 hour ago, Pebbles said:

I cannot be the first to be confused over the difference between solar priority and SBU.

I might be off track but feels that SOL wording is wrong and could/should indicate when no solar to go to power the loads from utility/bypass and if no utility to go to battery. Similar to the mode SUB.

On Axperts, SOL switches to utility powering the loads after sunset. It's an unusual setting that seems to prioritise keeping the battery fairly full as much as possible, but preferably from solar. It may be useful if you have frequent, unannounced load shedding or other power loss.

But this seems to be a clone. Either they copied the manual wrongly, or copied the firmware wrongly, or something similar.

I am using a Navasolar and my friend is using a Musk , and both of these 3K inverters (along with many) have this setting.

Edited April 2, 20251 yr by Pebbles

From my experience with various inverters that have SOL mode, you need to pay attention to the wording in the manual:

Your manual states that when solar is available, it will be used along with battery to power the loads (if battery voltage is above the setpoint), like SBU.

But after sunset, or when when solar is not available, loads will be powered solely by the utility/grid (like UTI mode).

Other inverters may use the SOL term similar to SUB (SOLAR-UTILITY-BATTERY) mode. In this case, the wording will state something like "Solar and utility will power the loads at the same time".

In the beginning I was also somewhat confused. The manual you show is somewhat different from my Synerji/Axpert but in the content the same. I finally decided for SbU as it and I prioritize running off grid as much as possible.