I have heard of people getting free panels from highway departments. Apparently, any scratch or ding no matter how minor is enough for the government to replace them (if i understand right, they are mainly for the digital warning and notification signs) supposedly they will give them away to lower the cost of disposal. For me, being offgrid isn't difficult. I have lived that way, with and without electric or running water in backcountry northern Minnesota locations. The main issue is appliances, a laptop is a good investment and small solar set ups are more than adequate usually. For food, a sundanzer fridge and freezer can be purchased that are efficient, and easy to tie in to solar power. Hot water becomes the next issue. I will be installing a passive solar outdoor shower and sauna building when I have my property, and a tankless water heater that runs on LP for indoor use. Light isn't a big challenge even for smaller solar systems. But, having allot of passive heating helps allot, I'll be installing skylights, and a attached greenouse/sun room, for light and heat.