On Grid DC inverter solar air conditioner takes the most leading technology in the world market. 

During in sunny day, the solar panel can provide the power with on grid electricity power together to operate 

air conditioner for start running, when it running stable, the air conditioner can running just with the power from

solar panel, so it no need any electricity at this time. 

And when the air conditioner stop running at sunny day, the solar panel can produce the power to return to electricity grid, then it can let the power meter reverse,then save the electricity cost.

And when in cloudy day or night time, the air conditioner can automatic to switch to electricity power.

ACDC solar hybrid
With Intelligent Power Management technology
this system can also accept DC power directly from solar panels, without the need of an inverter, controller, or batteries.
During the day, the Solar ACDC unit can get most of its power from solar power, resulting in an efficiency above SEER 35 when using 3pcs of
250W solar panels – cutting daytime energy cost by up to 80-90%.