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Solar panels are cheap and the price continues to drop. Fabrication of solar electric is not viable except in specialist production systems

Informal fabrication of solar thermal is done all over the middle east and central America, however the systems built can lead to very high water temperatures.

In commercial solar thermal systems, control systems prevent overheating, however in local fabrications, such protection will likely not be in place. In hot countries this can lead to very dangerous temperatures being developed in storage tanks, notably in the M East.

Best answer is to find cheap access to commercial systems