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APS is working with Salt River Project and Tucson Electric Power as part of WESTCARB, a research project evaluating whether storing carbon dioxide underground may be a viable option for reducing greenhouse gas emissions into the atmosphere.
This project will take place on APS land near the Cholla Power Plant in Joseph City, Arizona. The site was selected by geologists because of its deep, impervious geologic formations containing salty water that is unsuitable for drinking or irrigation. Commercial CO2 will be transported by trucks to the site and pumped about three-fourths of a mile into the underground formation, where it will be stored and monitored with sensitive instruments.
Reducing CO2 emissions at coal power plants continues to gather momentum across the country. By taking an early leadership role in project such as WESTCARB, APS will be better positioned when national policy on reducing greenhouse gases in solidified.
The project is expected to take about two years. WESTCARB is co-funded by the U.S. DOE, and the team in managed by the California Energy Commissions with the Lawrence Berkeley National Laboratory providing technical oversight and leadership for the field tests. For more information on WESTCARB, please visit www.westcarb.org
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