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M3333's avatar

I gave Sinema a lot of monies for her 2018 campaign! I will never forgive her for voting against a minimum wage increase with her little curtsy thumbs down vote! Cozying up to the clown RFK Junior is disgusting!!! Thank goodness for Senator Gallego!!!

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Russell Lowes's avatar

Project Blue, via Beale, claims dry cooling will save water. it will not. With dry cooling, it is truly not dry cooling. It is only dry cooling onsite, with a lot more water use than ever, offsite. It would be transferring cooling and water use to power plants that will use water for at Tucson Electric Power electric power plants. Huge profits would be made by TEP if Project Blue were to be built. Beale is essentially the broker (or perhaps flipper) for Project Blue. They said 1910 acre-feet would be used for cooling. They left off the roughly 7400 acre-feet that TEP would use for offsite cooling of power plants. That totals about 9300 acre feet for the wet cooling method. But now they have switched to so-called "dry cooling."

My analysis shows this.

With the current plan to use "dry cooling" at the Project Blue site, the water use would even go even higher. Project Blue would use about 14,800 acre-feet per year, an additional 5,500 additional acre-feet over the wet cooling method. This is because onsite mechanical cooling in our arid climate is much more efficient than HVAC/heat transfer technology. Evaporative cooIing has an efficiency of 10-40 units (called coefficient of performance or COP). HVAC only has a rating of 3 to 6. If you want to see my fully documented spreadsheet on this, you can contact me.

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