NBK

Hi Ant, I'm using a old 5kw generator to that effect on my 8KW Deye inverter and it works fairly well. In the setup one can specify how many watts the generator can handle (I had to set mine down to 3200W or else the load increases to much which causes the frequency to decay below 45Hz which then causes the Inverter to cut off the generator). Note that when the generator is running the inverter switches over the whole essential load on to the generator and uses whatever is left over to charge the batteries. So your generator would need to be big enough to carry the whole essential load, plus have some spare capacity for battery charging. So given this I suspect that you will need to look at a larger generator (unless your essential load is minimal). Also I needed to play around with my generator governor to increase the Hz to an acceptable level before the Deye inverter accepted it. Bearing in mind the above limitations it works really well, and I've even created a auto start routing using a Arduino board and a relay (that receives the start signal from the Deye inverter when the battery goes below a certain percentage). Hope this helps. Cheers B