Victron over-paneling?

[pollenface]

My Smartsolar 100/30 specifies a "nominal PV power" of 880w @ 24v

Is this the nominal PV input or output? (I note 29.2v*30a = 876w)

There's no reference I've found in the manual to over-paneling apart from the following

1. The solar charger will limit input power if more PV power is connected.
2. A higher short circuit current may damage the solar charger in case of reverse polarity connection of the PV array.

My epevers stated 1.5* charging power.

Could I theoretically go 1500w pv input without fear?

 

[Maitake]

I don't fully understand your question.
My inverter has a max input current rating per MPPT. I designed the array so that the string can never exceed this current rating, even if the semiconductors in the MPPT fail.

 

[pollenface]

@Maitake I think you're talking about a grid tied inverter. I'm referring to over paneling a victron smart solar 100/30 charge controller

 

[rmaddy]

There's no reference I've found in the manual to over-paneling apart from the following

1. The solar charger will limit input power if more PV power is connected.
2. A higher short circuit current may damage the solar charger in case of reverse polarity connection of the PV array.

Could I theoretically go 1500w pv input without fear?

Note #1 basically means that any potential for more than 30A of charge current will be limited to 30A.
Note #2 is important. The 100/30 is limited to 35A for Isc. Do not exceed that. BTW - when I look at the spec sheet for the 100/30, note #2 simply states: "A PV array with a higher short circuit current may damage the controller."

And of course there is the 100V limit on the Voc of your array.

If your 1500W array has a temperature adjusted Voc under 100V and an Isc under 35A then it shouldn't hurt anything having the extra wattage over the nominal 880W.

A 1500W array could potentially allow for up to about 55A of charge current. With the 30A limit you are losing a lot of potential in the right conditions. I assume you want to over panel this much due to a lot of poor solar days.