James Hamilton wrote a blog post on a water desalination plant that wants to add a data center in Monterey, CA

DeepWater Desal plans to build a desalination plant at Monterey Bay. Desalination produces drinking water from sea water. Given the abundance of sea water in the world and the shortage of drinking water in many parts of the world, these plants are becoming more common. They are fairly power intensive techniques but still used extensively throughout the world especially in the Middle East.

Deep Water Desal proposes to mitigate the power consumption of desalination in a very creative way. Rather than reduce the power required to desalinate water, they proposed to co-locate up to 150MW of data center facilities on site and reduce the power required to cool the data center. Essentially the desalination plant and data centers would be symbiotic and the overall power consumption of the combination of the two plants together would be lower.

Being more efficient in cooling is appealing, but probably not a major tipping point.