The best time to save money with Solar PV is right now
The price for Solar Panels is at an all time low, but that is reversing. The glut of panels on the market has dried up and prices are stabilized. But, you can look forward to rising prices for a solar system. The matter of economics is kicking into gear.
Don't look in the mirror next year and say " I wish I had invested in my Solar Panel System last year!"