Contradiction between energy saving of variable frequency air conditioner and harmonics of power grid

It should be saving electricity. According to the national standard, the current harmonic THD of inverter should not exceed 10% in China. Relatively speaking, the loss caused by harmonic current is very small.

On the other hand, after using frequency conversion technology, the power consumed by the system changes with your temperature in the process of adjusting the temperature, while in the original air conditioner, even if you raise the temperature, the input power should not change much, just consume the power to a changing place to adjust the output power.