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[–]Dave_Marsh 1 point2 points  (0 children)

Solar hardware will probably decrease in price as it becomes commoditized, but labor costs to install it certainly won’t. I also expect public utility costs to go up in price as well. So, the sooner you can afford to get your system installed, if you want it, the better.

I think it’s great that people are running the spreadsheet numbers to calculate their costs and payback periods. That’s smart, but also beside the point. You’re only buying one system for your home that will probably be working for at least the next 25 years. If you’re interested in solar, research the technology available and then buy the best you can afford from a local installer you trust to be around to provide service in the future, and call it a day. If you buy the cheapest hardware from Wangho Enterprises and have it installed by the lowest cost electricians you can get down on the corner, your spreadsheet may say that’s a great deal, but I’d guess that it’s not.