Monday was an almost perfect day for solar in New England. I've got ten 250 watt panels on my roof, each connected to an enphase M215 grid tied inverter. Because the inverter clips at ~213 watts, the peak output is 2130 watts, which I saw at around 11 am . Energy was 13.6 kwh for the day( from a 2.5 kw system) or 5.45 equivalent full sun hours. Five and a half hours of full sun in February from a roof pitched at 20 degrees to the horizontal is pretty good. I attach some of the pics from the the Enphase online tool to track production (total and of individual panels). .