Power balancing in a multi-phase system

A non-transitory machine readable medium comprising a program to be executed on at least one processing unit, the program comprising sets of instructions for:

• identifying, for each power line of a multi-phase AC grid mains, a set of micro-inverters that provides power to the power line;
• calculating an aggregate power output for each set of micro-inverters;
• and
• balancing the aggregate power output of each set of micro-inverters, the balancing comprising controlling the output of at least one micro-inverter of at least one set of micro-inverters.

A method for controlling power being injected into different power lines of a multi-phase power system, the method comprising:

• receiving messages from a plurality of micro-inverters, wherein each message is generated by a micro-inverter when a power line connecting the micro-inverter is at a particular phase of an AC cycle;
• identifying a first power line as a power line that is connected to a first micro-inverter transmitting the first message;
• calculating a timing differential between the first message received from the first micro-inverter and a second message received from the second micro-inverter;
• and
• identifying a second power line as a power line connected to a second micro-inverter based on the calculated timing differential.