Why do solar companies everywhere offer 6.6 kW of solaras their standard offer? It's because of the rules. Or, to be more specific, the “Clean Energy Council Guidelines For Grid-Connected Solar PV Systems (No Storage)“. This is a set of guidelines that must be followed when designing. Back in ye olden days of solar, shortly after the Renewable Energy Target was conceived, the Small Technology Certificates (STC). Before the CEC even existed, SEIAwere the local industry body. It was a union of like-minded professionals who assembled a standards, training. We need to install more solar panels well over the inverter capacity to deliver: 1. more power in the mornings and evenings, while output will be clipped or throttledat midday. 2. more. Well, to quote Tom from the Clean Energy Councilrecently, If you have a home batteryconnected to your solar installation, you can now exceed the 133% oversize rule and go to the full inverter manufacturer's recommended capacity. That means you can.
