Solar Heating and Cooling?

solar heating

I live in Las Vegas, Nevada and I need to try something to cool off my house without using the air conditioner too much. Bills are sky high for this region due to excessive heat (it gets as high as 117 degrees!) and right now outside it’s 110! I want to purchase a solar type solution or build one if I can find the right info to do it. I just want to use "Big Daddy Sun" to help out on cooling my house now and heating it in the winter. Any ideas? Thanks.

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