Why Do You Recommend A Three-phase Inverter?
Spreading the inverter capacity across the three wires coming into your home means that you don’t have to push the solar energy as hard to get it out to the grid. You’ll be increasing the local grid voltage less than a single-phase install, and you’ll have less throttling or tripping off due to over-voltage issues. That means more solar power production with our high-voltage plagued Australian grid. Voltage rise related solar issues are one of the biggest problems we see with installed solar power systems. I go in to detail on the causes and solutions for voltage rise issues here. So to reiterate for the blog post skimmers: If you have a three-phase supply, I recommend getting a three-phase solar inverter. Why? Because it drastically reduces the chance of having voltage rise issues. But not everyone agrees with me on this. There is one downside to using a three-phase inverter, other than the extra cost (expect to pay $300 to $500 more com...