I need some help, I am planning on installing a 10 kilowatt solar panel array in the next couple of months. I will not be using a solar tracking device. The plan thus far is to determine the solar south bearing and face the panels in that direction and work out an appropriate angle for the panels. I have done a bit of research and read a couple forums all ready. It is my understanding that the declination is relative to geographic location. The location is Iroquois, Ontario on the St. Lawrence river. 44°55′00″N 75°16′00″W. From this table, http://www.wsanford.com/~wsanford/exo/sundials/DEC_Sun.html I declination is listed as 23 degrees and 19 minutes today and from this calculator, http://www.srrb.noaa.gov/highlights/sunrise/azel.html I get a solar declination for my area of 23.24 degrees. Does this mean that in the solar south direction the sun will always be 23.24 degrees from the plane of the ground? Once i understand declination completely and can determine the max and min angles I can determine the lengths of shadows that the tree lines around the lot will cast and the location and length of the shadows from a water tower which is south of the lot. I want to locate the array in an area where the tree line and water tower will never cast shadows on the panels. If possible. I also need help with declination so I can determine the best angle to adjust the panels to during the seasons or summer or winter solstice.