Does sol-arks (or other inverters) "mix" bypass power with inverter when load is > inverter output

[hipringles]

For example, the new 15k solark has 200A bypass, but is a ~15kw inverter. If you set PV/Battery as primary source, and your loads are <=15kw, you will use inverter power. But what happens when you hit ~20kw? Will it phase match & mix in with grid, thus 15kw from inverter, and 5kw from grid? Or will it swap over to the grid fully?

I

 

[robby]

The Sol-Ark will supplement the PV and Battery Power with Grid Power. Once your loads drop back down it will first throttle down the Grid Power and as that hits Zero it will Start to Throttle down the Battery Power and when that is not needed it will use just PV and any extra PV will Instantly start to be used to charge the batteries. You can also tell it to use the Grid or Generator to Charge with the PV but that is kind of pointless unless a Storm is coming and you are expecting a power outage.

 

[hipringles]

The Sol-Ark will supplement the PV and Battery Power with Grid Power. Once your loads drop back down it will first throttle down the Grid Power and as that hits Zero it will Start to Throttle down the Battery Power and when that is not needed it will use just PV and any extra PV will Instantly start to be used to charge the batteries. You can also tell it to use the Grid or Generator to Charge with the PV but that is kind of pointless unless a Storm is coming and you are expecting a power outage.

This is the most complete answer I could ask for, Thank you!

Can't wait for the 15k to go for sale.

 

[copec]

When in combination with grid it is actually always “riding” the grid - reading a (built-in or external CT) to read the current draw from grid and then match it up to the available PV/battery/max-inverter-power. It just reacts within a couple of milliseconds, so it adds up to an extremely small amount of grid power.

What’s interesting is that it’s not really that big of a modification from an off-grid inverter’s logic loop. Also, it makes loosing grid power have virtually a zero dip since it is already in sync providing the power. It’s pretty cool.