What is the project timeline?
APS plans to file applications for project permits this spring and summer. Construction on the new units, if approved, would begin in 2016 and be completed in 2018. Removal of the old units would begin in 2018.
Why upgrade the Ocotillo plant?
The Ocotillo plant is critical to maintain service reliability in the Phoenix metro area because of its location. We can also improve an existing plant without changing its overall footprint and replace generators that are increasingly costly to operate and maintain. Many replacement parts are no longer available for the steam generators and must be custom-made to keep equipment running.
What will be the environmental benefits?
Replacing the obsolete steam generators with much newer, proven, cleaner technology will greatly improve the plant’s efficiency. The new units will decrease the plant's water-use and emission rates. They will also improve the plant's overall noise conditions.
How tall will the new structures be?
The plant currently has four 178-foot stacks, while the upgraded plant is planned to have five stacks about half as tall. This would significantly reduce the plant’s visibility from several locations.
What economic benefits will the project provide?
It will create local jobs – we expect the project to require an average of 114 jobs during construction. Total property taxes for the upgraded plant are expected to increase to about $8 million by the fifth year of operation. APS currently pays about $600,000 in total property taxes for Ocotillo.
How can I get involved in the project?
APS is committed to a transparent public process. The public can submit comments on the project through the form above. In addition, we will hold a public open house to provide information and take comment.
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about the Ocotillo modernization project.