Hello everyone

[scottdeb99]

Just checking in. I installed a system with the help of some friends back in December. I bought a 20 kw package from Sungold. It came with 2 x 10 kw inverters, 32 x 440 watt panels, and 6 x 5 kw lithium batteries. I have since added a third 10kw inverter due to my all electric house power needs. I also have an electric truck. I do have a few questions. I am just learning that the input from my panels is largely dependent on my load needs. I am not selling anything back to pge. With decent sun my batteries are full charged at the end of the day (while still running my house). By morning the batteries are very low when the sun kicks in. A week ago I noticed I was only getting about 10kw's out of my panels with good sun. When something kicked on in the house(dryer, water heater), the panels would jump up to 15kw"s. I guess my real question is can the batteries only accept a certain charge? I was waiting until the afternoon to charge my truck because that was when my batteries were almost full. Now I think I wasted the noon sun and should be charging earlier on good sun days. I have more just wanted to throw that out there and thanks for letting me vent.

[scrambler]

Batteries do have a maximum Charge limit that depends on the battery capacity and chemistry. It is normally configured in the equipment responsible for charging.
And if you are not feeding excess back to the grid, then the panels production will indeed be capped by the load your installation can absorb (Battery charge plus home consumption). Once the batteries are charged the panel production is limited by the house loads as there is no place for the extra power to go to

[Rade]

I have 18kW of battery storage on my architecture. Pretty much the control module shuts off the charging when full. In my case, anything more is pumped back to the grid for net credits. I don't know what would happen in your case - perhaps the inverter places the panels in "neutral" until the power is needed.