Normally I feel AC is something we should try to do without. But come to think of it, if you can actually power an AC unit with panels on your roof, aside from

Normally I feel AC is something we should try to do without. But come to think of it, if you can actually power an AC unit with panels on your roof, aside from manufacturing the system, it's fairly elegant. You're harvesting & then releasing energy that was bound for that patch of land anyway. Like capturing rainwater on your property and redirecting it through your garden.