The point of those is to drive turbines to generate electricity. Is that what you are going to do? I think you would need more height. Sorry no math for you. The idea is the same as a dam except upside down. So bigger drop/rise = more energy. And in this case the hotter the air at the bottom the better (obviously). I think that is why in the drawing they show large heat collectors at the base. The tower itself is not the collector.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra