Canberra house models hybrid grid with Redflow, page-4

Redflow battery has a inherent characteristics of slow discharge it not a fault just a characteristic. So if you want to say start a large compressor you need a bump of power to get it started. Unless you have sufficient power and inverter essentially oversized you need NI for a quick discharge. Redflow battery will run it forever at normal draws. This doesn't apply if you can afford to over size you system. In a stand online system you would need a lest 2 zbm2 or 1 zbm2 and a NI to cover the maintenance cycle . I am not connected to grid and rely totally on batteries.