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If you're in a dry area, perhaps a better idea is simply putting solar panels on your roof. That way, no deserts are used up for solar farms and anyone who doesn't want to be forced to use solar power can stay on the grid.
Solar panels seldom become completely ineffective, unless something breaks them. They generally are cited to have a useful working life of about thirty years; a .5% degradation in output per year is expected, so after thirty years they are down to 85% output. Still usable but not optimum.
As for disposal of used panels, they're mostly glass, but can be recycled. Take Australia for example, where over 3 million homes have solar panels - not just getting free power but also making a bit of profit by selling the surplus. They have recycling programs and it costs about $10 to recycle a solar panel, a cost that could be added up front like bottle deposits on soft drinks. Europe operates this way with their panels, putting responsibility on the manufacturer to take care of collecting and recycling after usable life.
Solar panels seldom become completely ineffective, unless something breaks them. They generally are cited to have a useful working life of about thirty years; a .5% degradation in output per year is expected, so after thirty years they are down to 85% output. Still usable but not optimum.
As for disposal of used panels, they're mostly glass, but can be recycled. Take Australia for example, where over 3 million homes have solar panels - not just getting free power but also making a bit of profit by selling the surplus. They have recycling programs and it costs about $10 to recycle a solar panel, a cost that could be added up front like bottle deposits on soft drinks. Europe operates this way with their panels, putting responsibility on the manufacturer to take care of collecting and recycling after usable life.