Quantcast
Get breaking news alerts via email

Click here to manage your alerts
Utah Geological Survey photo Drilling rig on the geothermal site in Utah's west desert
Utah scientists find massive geothermal hotspot in west desert

Black Rock Desert basin south of Delta has a geothermal hot spot where power plants may thrive one day, scientists say.

First Published Sep 27 2012 08:29 am • Last Updated Jan 07 2013 11:32 pm

Scientists at the Utah Geological Survey say they have found a massive new source of potential geothermal power in Utah’s west desert.

It is a different type of resource, they say, much deeper than the geothermal industry now uses. But it still should be exploitable.

Join the Discussion
Post a Comment

Over the past two years, crews drilled nine wells in Utah’s Black Rock Desert basin south of Delta to test out a theory that water at high temperatures might exist deep beneath the surface that would be hot enough to be turned into steam, which could then be used to generate electricity.

They hit pay dirt.

"There is definitely something there, and it is big," said Rick Allis, director of the Utah Geological Survey.

The agency has identified an approximately 100-square-mile area within the Black Rock Desert basin it believes could eventually support power plants that could conservatively produce hundreds of megawatts of electricity. A megawatt is enough energy to run the appliances in 750 homes.

Allis said the area is especially attractive for geothermal development because of the existing infrastructure. There is a large coal-fired power plant in the area, a 300-megawatt wind farm and a major electrical transmission line nearby that could be used to get the power to where it is needed.

"Our next step is to get [the geothermal power industry] interested in moving forward to develop this resource," he said.

The Utah Geological Survey plans to tell the industry about its discovery at the annual meeting of the Geothermal Resources Council next week in Reno.

Karl Gawell is president of the Geothermal Energy Association, which is part of the council. On Thursday he termed the Utah discovery "exciting" and predicted it would be generating a lot of talk and interest among companies that are developing geothermal resources. "It’s exciting for Utah, too, because it could eventually generate a lot of jobs and economic growth."


story continues below
story continues below

In one sense, though, the Utah discovery wasn’t unexpected.

The U.S. Geological Survey several years ago conducted a survey of the nation’s available geothermal resources. At that time it estimated 80 percent of the potential sites had yet to be discovered.

"We’re still in the exploration stage when it comes to finding new resources," Gawell said. "So this discovery just confirms what everyone in the industry already knows, that there is a lot of undiscovered potential out there."

Although environmentalists generally look upon geothermal projects as being worthwhile developments, Christopher Thomas of the Healthy Environmental Alliance of Utah (HEAL) said every undertaking needs to be thoroughly reviewed to make sure there are no adverse impacts.

"You have to ensure that there is smart site selection, and that the development follows all the rules," he said.

Still, Thomas pointed out that Utah is seventh out of eight Western states when it comes to renewable energy production. "If we want to ensure continued economic prosperity . . . we’ve got to be looking at geothermal, wind and solar energy."

One potential drawback to the Utah site is the depth of the formation. Any company that wants to develop a power plant in the Black Rock Desert will have to bring water up from deep underground — as much as 10,000 feet — use it to generate electricity then inject it back underground for reheating.

Yet neither Allis nor Gawell see that as an obstacle that can’t be overcome.

"It is deeper than the geothermal industry is used to, but it isn’t unusual for the oil and gas industry to operate at those depths," Allis said.

Preliminary economic modeling suggests that a large geothermal plant could produce electricity for about 10 cents per kilowatt hour, Allis said. Although that cost is higher than the roughly 8 cents per kilowatt hour Utahns pay for their electricity it is well below the going rate of around 15 cents that consumers in California pay.

"The power could be sold in California at a profit," he suggested.

Next Page >


Copyright 2014 The Salt Lake Tribune. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Top Reader Comments Read All Comments Post a Comment
Click here to read all comments   Click here to post a comment


About Reader Comments


Reader comments on sltrib.com are the opinions of the writer, not The Salt Lake Tribune. We will delete comments containing obscenities, personal attacks and inappropriate or offensive remarks. Flagrant or repeat violators will be banned. If you see an objectionable comment, please alert us by clicking the arrow on the upper right side of the comment and selecting "Flag comment as inappropriate". If you've recently registered with Disqus or aren't seeing your comments immediately, you may need to verify your email address. To do so, visit disqus.com/account.
See more about comments here.
Staying Connected
Videos
Jobs
Contests and Promotions
  • Search Obituaries
  • Place an Obituary

  • Search Cars
  • Search Homes
  • Search Jobs
  • Search Marketplace
  • Search Legal Notices

  • Other Services
  • Advertise With Us
  • Subscribe to the Newspaper
  • Access your e-Edition
  • Frequently Asked Questions
  • Contact a newsroom staff member
  • Access the Trib Archives
  • Privacy Policy
  • Missing your paper? Need to place your paper on vacation hold? For this and any other subscription related needs, click here or call 801.204.6100.