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Planning on going fully solar and wind on an off-grid property in my old age.
I understand the desire completely, though I suspect that being grid-tied is cheaper in most locations:
- wind is a lot cheaper with bigger turbines, which don't make sense for individuals (though community ownership would be reasonable)
- grid-tied systems are a lot cheaper than fully disconnected ones in most locations, and need a lot less storage, since they move electricity from where the sun shines or the wind blows to where people are
You forgot to mentioned being grid tied also enables the use off excess energy. Being off grid can be a waste.
Though while you save some in upfront costs, you loose out on the benefit of eliminating an ongoing cost thanks to still requiring a connection. Given how solar and battery prices continue to drop, it’s likely they will eventually hit the point where it may be cheaper with inflation to buy now and save later when it comes to retirement.
I dislike it when there are two graphs next to each other for comparison with different scales...
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