The Dark Side of Solar Energy. Photovoltaic solar. Grid Intertie Inverters. Solar cells generate Direct Current (DC) The grid operated on Alternating Current (AC) 60 Hz in the US and North America; 50 Hz in Europe and other places.
60 Hz in the US and North America; 50 Hz in
Europe and other places.
. The AC to DC conversion is done by a switch mode power supply (SMPS) which interrupts current flow, sending dirty electricity back into the grid