we take the 12v panel, in fact it is 18v to it the battery charge controller if there is a battery or just a pulsed stabilizer if without a battery, the output of the stabilizer or controller we stupidly hang in parallel with the power of the miner, when the miner is powered from the power supply 220-12 but as soon as the sun is shining consumption from 220 drops as much as the panel controls.