It would be interesting to see how others cool their equipment, inverters, batteries etc. I guess it would have been better to post this question in mid December when pretty much the entire SA is scorching hot.
I assume if your installation is in a big room or garage it’s not too much of a problem and a cabinet with maybe a couple case fans do just fine to keep the temperature more or less in check.
However if the installation is in a small space I’d guess rising temperatures become a bigger issue?
Then of course there are those who go all out and install aircons, I always wondered how energy efficient this is? Of course keeping everything at a constant 25 degrees is the ultimate, but at what cost in terms of running a aircon 24/7? I’m sure some of the very clever guys did the math already and would be able to tell us whether it’s really energy efficient