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So far, all I have done with the mirrors are to give two pieces to photographer friends of mine.
I also have two 15-watt PV panels mounted vertically on my garage. I put one piece of mirror flat on the ground to reflect some of the low winter sun back up to one of the PV panels.
We are in the cold/cloudy/dark season now. Sunset is at about 4:30 pm right now. Also, my yard is skinny, and runs north and south, so I have a solar disadvantage.
One of the better suggestions I have had so far was to build solar oven to sell as a fund-raiser for local eco-groups.
Using 4 mirrors each, I could make at least 10 solar ovens. It does sound like a lot of work, and I don't know what the cost of all the other materials would be.
Some sort of a large solar-thermal project sounds like the most fun to me. I really do wonder how fast and how hot I could do some sort of solar heating.
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