There's also mention of the tower producing (!) 90 millions tons of pure water per year. This is not something we've been told about before (although the Manzares prototype tower did show plant growth under the canopy, suggesting the production/collection of lots of moisture in an otherwise arid area).
At New York City prices (to compare), 90bn kg of water (23 billion US gallons) that's almost $100 million _worth_ of water every year.
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