Dan C
Honorary Master
These are not meant to run continuously like the article may suggest. These units are suppose to be used now and again for maybe a bit indoors , but mostly for portability to power off grid appliances or tools.They are anything but small. It's no longer 2010 where things filled half a room. The new stuff are rack mount and doesn't take up much more space than a camping chair.
If you are looking for a permanent loadshedding solution, then go the inverter route.