In 3.75 years, my solar panels have generated at least 42.795 MWh of clean electricity. It's actually more, but I'm missing about 10 weeks of monitoring data. I can likely recover most of it from my electrical CT monitors, I just haven't done that yet. My system is a 7.7 kW inverter, with 3 strings of 33 panels total. I wish I could get another string facing southwest, but my roof would make that very difficult.