question

Hi @Christiaan

Let's say your panels are rated 10.0 Isc. Any number in a string will still give 10A, so the 70A limit covers 7 strings.

The 100A output limit at a nominal charge V of 58.0V = 5800W. That doesn't happen much in practice, but yes it would be fine to 'overclock' your panels as much as you want, providing the Isc isn't exceeded.

But the panel Voc limit is even more important, and not so clear-cut. You say 5x in a string, but you MUST allow for a hefty increase in Voc when the Temp is low, and that's why the panel maker will specify Temp Coefficients. And don't think that at dawn when it's 0 degC but there's so little sun that it won't reach the corrected Voc, because you'd be wrong.

Please run your panel data through this calculator before you decide on a 5x string. You may not make it..

https://mppt.victronenergy.com/

@Christiaan

Yes, you'll lose the energy beyond 100A (I won't say 5800W). But if you're not exporting to grid then as an issue it may not exist at all. Offgridders (like me) are usually happy to see battery Absorb reached by (say) 11am, and the rest of the day's potential go unharvested. The battery is the priority, nothing else matters.. :)

Where that 'overclocking' is welcome is on the foul days, and I've seen my solar output reduce to as low as a 20th of what I know it can do over a full day.

Take care reading specsheets, they can consume you. They don't explain that a day's solar potential is in the form of a bellcurve, with maybe a little 'clipped' off the top, or that winter devastates their panel's potential.

There's other stuff too, but I'm sure you're aware of much of it. If offgrid, this is fun to play with: https://www.victronenergy.com/markets/off-grid

And pleeease don't spend anything until you've worked out what you really want. And run it past us again.. :)