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I have been wondering about the self-syncing on-grid solar cell system that Professor Kai or Kook Kai Banlai Karnchang has presented on his page for a long time, but I never had the chance to ask. Today, I had the chance to go see the work with him at a resort that uses the self-syncing on-grid system. I saw the team installing it for a customer. I asked Professor Kai and got the gist that self-syncing on-grid is like creating a personal power station. We don’t have to use electricity from the grid to power the grid tie inverter as per the general standards. Instead, we use an off-grid inverter to convert from a 48v battery to 220v home electricity and then connect this 220v AC power to the grid tie inverter instead. But instead of using a general on-grid inverter, we will use an on/off grid inverter instead. What is it for? It is to allow the electricity from the solar cells to charge the batteries first. Another off-grid inverter will be able to draw electricity from the battery, convert it to 220v AC power, to become a personal power station, and then supply the on/off grid inverter to create a frequency to work according to its function. Converting the solar cell power to push the load or electrical appliances in the house to work, we will be able to continue using it. The home electricity will not be connected to the inverter. Directly on/off grid But will connect through ATS switch instead Therefore, it is in accordance with the electricity regulations, legal, no need to ask for permission. When the sun is gone or at night, ATS will cut to use normal home electricity. There is no mixing of electricity in any way. And at this time, Professor Kai has prepared a complete set. The assembled set has 1 on/off grid inverter 6kw, 1 off grid inverter 5kw, 1 lithium battery 48v280ah, 10 high-voltage 600w solar panels, various control sets such as ATS, breakers. Set up the set as a complete set. Install the solar panels according to the diagram provided. Turn on the device and use it. Sold at a price of 120,000 baht. Anyone interested, contact me on Line https://lin.ee/3uerbwd