ya i got my 6000w gen for power outages. has a 8 gallon tank.. and wen power outages happen i run minimal lights.. so a 6000w works perfect.. and i can run it at 3000-4000w for a full 24 hours before filling the tank.. only usually use that in the winter..
and yes its loud... i dug a whole in my backyard close to the house.. i put gravel down.. and put my generator in there.. with a wooden box covering it from the rain and snow.. and wen its on. its not that loud anymore.. i also used some sound barrier inside the wodden box.. pretty much built walls around it.. that are insulated.. an its crazy how quite it is..
one of a friends of mine built his own solar panel kit.. and battery bank.. the battery bank was DIY.. its crazy this dude runs his entire grow solar.. and ive been looking into it..