Appreciate all the info in this thread, especially the litterature from
@FilterGuy Made me wonder a little more about my plan to switch my controller(s) over to victron. Currently I run a single Morningstar Tristar 60a MPPT, which I'm very hesitant to change because it's an amazing bit of kit. But all of my equipment bar that is victron, and I love the integration and for everything to talk to eachother.
I'm currently running an 8s 24v 270ah setup with a 3k Multiplus, and around 2kw of panels (limited to 1.6 by the controller) But I'm definitely thinking of adding another 2.5kw array to combat with long winter weather which I'm struggling in (completely off grid)
I'd want to run a seperate SCC for this, tempted to grab another TriStar 60 but also tempted to sell that and grab 2 150/45 Victrons. My reason for the 45s is I will upgrade to 48v.. at some point, another 8 batteries and a 5k multi ain't cheap!
I don't think it'll be an issue but this thread certainly made me think about
whether it's a good thing putting about 2.5kw into each Victron MPPT and letting them limit to around 1.3kw. Having now have time to have a sit down and a proper read through and not just a skim, I'm a little less hesitant, my ISC would never get near the 50a limit of the controller, with 3s3p it would see an absolute max of 30a ISC. Obviously once it's upgrades to 48v it won't be limiting anymore, but it may be a year before then running at 24v.
I'd like to think the victron MPPTs are of a very high standard like the rest of their equipment, admittedly I've read the odd post saying "they wanted into the MPPT game so relabelled a Chinese controller" but I doubt those accusations given their reputation and warranties. I'm not sure they maybe live up to Morningstar's quality but I'd really like the MPPTs to talk to the rest of my system, I'm aware these some coding that can be done to achieve this but that's a bit beyond me. Tough decisions..