Well we're almost through with summer in Arizona again... officially I think we have 2 more weeks to go.  But rain and moderate temperatures have been with us for a week or more now.  Last month I did use more electricity than I produced, first time since my array went live on March 16, 2012.  The reason?  Clouds.  I was only short by 174 kWh.  That's less than two days of normal production.  But I had several days that produced half or less than the summer average.  All told it amounted to 2.35% of my banked surplus for 2013.  If you're reading this blog post first, please be advised that the really good stuff is near the earliest posts, and there's a lot of photos between January 2012 and the commissioning date -- March 16, 2012.  Before January of 2012 the blogs are mostly of my questions and speculations... being completely new to PV solar co-generation.