Solar costs fluctuate all the time. Depending on how the economy is doing, if there are tarrifs placed on prdoucts from china, and if we will have a democratic government or not, all have influences on solar costs. The best thing to do is jump right in as soon as you can to get the most out of having a solar system. Here in San Jose it only brings costs down to go solar because of the amount of sunshine we get in southern California. Every minute wasted, is more you will pay without having solar.
For more videos see: San Jose Solar Playlist