adding another solar panel (1 Viewer)

[gerry mcg]

I'm just mulling things over - if i want to fit a Snipe 2 Sat system on my roof, i might have to move my current 150W panel from a fore /aft position to a transverse position in order to make room - I've got a Victron75/15 MPPT solar controller at the moment... and wondering about what extra solar capacity i can possibly add at the same time?- whats the max capacity the Victron 75/15 can take? 200W? or more?
thanks

Edit.

Current roof layout.
I'll measure tonight but I think the 159w panel up 1450mm long, so should fit transversely As it is a Ducato x290 PVC, so will be about 2.00m wide

 

[Robert Clark]

Great piece of kit
Full spec here
https://www.victronenergy.com/solar-charge-controllers/mppt7510

 

[DBK]

From memory it is 200W but also from memory you won't damage it if you connect more, it just won't produce more than 200W. Given the extra solar panels are probably at their most useful when light levels are low this may not be a serious limitation. I would email Victron to check my memory but if you didn't want to change the controller it would give you an alternative.

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[gerry mcg]

There is an excel MPPT solar calculator spreadsheet on the Victron website for matching panel capacity and Solar controller. https://www.victronenergy.com/upload/software/VE-MPPT-Calc-2_7.xlsx
That indicates that anything above 150W is power limited to 15A at low temperature and becomes power limited to 15A at low high temperatures at > 210W before becoming incompatible with arrays >240w