Right UPS for a (very) large configuration!

I live in a mountainous region where storms are frequent, as are power outages that result.
I was already equipped with a small inverter of the same brand, which gave me great pleasure for many years, until the end of its battery life. To replace it, I took that much more powerful system (my current setup is more muscular, with 2 screens). In normal office work, I nonetheless that consumes 230W, which leaves me quite margin and about 1/2 hour autonomy in case of power! I've probably seen a little big, but who can do more can do less.