In a few weeks I will be moving to a different home and leave behind my current ESS 15kW Multiplus system as I sold it as part of the home. (A++) My new home is far from A++ so one of the first activities (other then moving) is to start designing a new ESS system, however I’m limited in storage of all the gear.
The utilities cabinet is pretty small, very typical for a 1960’s (Dutch) home, so I need to store / locate the full ESS system somewhere else. I have a “shed” available but that requires AC & DC cables running up & down. Another option is to keep all upstairs, near the solar panels thus keeping the DC cabling short only having to run AC (3 phase) downwards. I got a carport available a few meters away from the utilities cabinet.
It is always better to do short DC runs and longer AC runs if you have to choose between the two. Regarding space, how much space are we looking at? As long as the spot can fit all your equipment and still has good ventilation you should not have an issue.