Good idea on the smoothing. I use an 85AH deep cycle marine battery to smooth that power out. And it is smooth. But I use about 1A average current on my devices.
I'm about to find out how smooth. Tropical storm Isaac is headed here. The day due to arrive here is Tuesday. HA! I think maybe Wednesday. If you see Jim Cantore from the Weather Channel in Destin, Florida on Monday, that is a bad sign for me.