Technical Support

I am considering adding a couple of panels using micro inverters and I‘m hoping that someone can clarify how that would work with the overall export limit on the inverter.

We have a 3.6kw Ecco inverter and already have two strings that can’t take any more panels (the orientation of our house isn’t ideal for solar).

We could add a couple of panels in a west-facing direction to pick up sun later in the day when the output of the other panels is reducing. My question is how this would work with the overall export limit of 16A (3680W) under the G98 notification, and whether the overall export would still be limited to the 3680W.

For example, if the main panels were producing 4000W, the micro inverters were producing 200W and the batteries were fully charged, would the output of the system still be limited to 3680W? (i.e. would we still be compliant with G98 or would we need to apply to the DNO to have a larger output authorised).

As a follow on to the above, I am assuming that the 3680W would still be across the grid output and the UPS output? i.e. if we had the same 4,000W and 200W inputs above and the batteries were fully charged, if there was a load of 1,000W on the UPS output and the house was drawing say 3,000W then the inverter would still be limited to supplying 3,680W across those two supplies (presumably meaning that the UPS gets 1,000W and 2,680W is supplied to the grid connection). Is that accurate?

Thanks very much for your help