http://www.travelblog.org/North-America/United-States/California/Lathrop/ Travel adventures in journals and photos from North America , United States , California , Lathrop en-us Wed, 19 Jun 2013 13:09:35 +0000 Wed, 19 Jun 2013 13:09:35 +0000 Although solar cell and photovoltaic technology has been around since the late nineteenth century in a very primitive form it wasnt until the 1950s when solar panels took on the form as we know it today. Yet it wasnt until a main wave of environmental interest stemmed in the 1970s with cheaper and efficient solar panel technology has begun being developed for both commercial and residenti http://www.travelblog.org/North-America/United-States/California/Lathrop/blog-722888.html