even though this is a 3 year old post some stuff is still relivent, but buying this bluetti is far from cost efective. 4500 bucks on sale for 3100 bucks in canada for the 3000 model. so for much much less you could have built your own battery, prices today are around 500 bucks CND to build a 304AH battery, the Bluetti gives you 250AH aprox.. a good MPPT contoler can be had for 100 to 200Cdn depnding on the brand you like, that will be a 40AH and a 400 watt solar panel is going now for 250ish and you can get a inverter for say 400. so 1200 bucks for the main componants and say another 70 for little things like wires, mounts and such.
