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Evaporative coolers have been around for a long time, and are cheaper to run than air conditioners. They are OK up to about 95 degrees or so as long as the humidity stays low. After that, they just make the house muggy and unpleasant. Moreover, they are noisy. Central air is much better.What makes sense is solar panels that produce energy when it is needed most, which means, in the middle of summer afternoons at least here. Cheaper panels might not get us off of the grid altogether, but they could save on the electric bill and help prevent those "brown outs" that happen when there is a real heat wave.
Evaporative coolers have been around for a long time, and are cheaper to run than air conditioners. They are OK up to about 95 degrees or so as long as the humidity stays low. After that, they just make the house muggy and unpleasant. Moreover, they are noisy. Central air is much better.
What makes sense is solar panels that produce energy when it is needed most, which means, in the middle of summer afternoons at least here. Cheaper panels might not get us off of the grid altogether, but they could save on the electric bill and help prevent those "brown outs" that happen when there is a real heat wave.