Four thousand acres of private land in the Mojave desert are slated to become the site of an ambitious new concentrating solar power (CSP) plant: Hualapai Valley Solar (HVS). Named one of the Top 100 US Strategic Infrastructure Projects by CG/LA Infrastructure LLC, HVS is expected to produce 340MW of electricity, provide hundreds of new jobs and attract new business to the local area.There’s only one problem — water.
…the water issue may remain a substantial hurdle for HVS in the coming months, since the Mohave County General Plan states that the county will only approve power plants using air-based “dry cooling” technology when the aquifer is threatened with depletion or subsidence. An advisor to the project, Chris Stephens, has maintained that the aquifer holds more than enough water to accommodate the next century’s worth of growth.
While the treated effluent cooling solution is to be commended, HVS would still put significant pressure on the local aquifer even after using all the city wastewater. We wonder if there is another possible solution to the turbine cooling problem. This situation highlights the desert southwest’s resource allocation dilemma: an abundance of one resource, solar energy, and a scarcity of another required to harvest it, water.
And the water issue is not going away. Scientists at Scripps Institution of Oceanography last year forecast that “within 13 years Lake Mead and Lake Powell along the Colorado River, the two largest reservoirs in the southwest United States, could become ‘dead pool’ mud puddles.” (Read more in Alex Steffen’s recent feature, Dead Pool.) In our haste to develop subsidized, renewable energy resources are we losing sight of the bigger picture?
We’ll be keeping an eye on HVS here at Worldchanging. Each new, renewable energy project that comes online puts us one step closer to a carbon neutral world. To do this while preserving and protecting our planet’s fragile ecosystem is real, sustainable change, and that’s change worth celebrating.
By Daniel Flahiff
Source: http://www.greendesign.com/
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