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Landscape photograph of Palo Verde Nuclear Generating Station

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 Palo Verde Nuclear Generating Station (PVNGS)

Palo Verde Nuclear Generating Station (PVNGS), located about 50 miles west of Phoenix near Wintersburg, is the largest nuclear energy facility in the United States.  Comprised of three pressurized water reactors, PVNGS generates 4,000 megawatts in service of 4 million inhabitants of Arizona, California, New Mexico and Texas.

PVNGS is the only nuclear facility not adjacent to a large body of water; instead, reclaimed wastewater and de-mineralized and de-ionized well water to meet its cooling needs.  

BE informed

Public wellbeing would be the principal concern in an incident at PVNGS. The Arizona Division of Emergency Management and Maricopa County maintain a joint Offsite Emergency Response Plan for the Palo Verde Nuclear Generating Station to ensure a synchronized response to protect the public from the effects of radiation exposure in the event of an incident having offsite consequences.

The Maricopa Department of Emergency Management has compiled the following resources to inform Arizonians on topics applicable in a PVNGS response.  

·         PVNGS Emergency Classification Levels

·         PVNGS Emergency Planning Zones

·         Protective Actions

·         Alerting and Notification

·         Reception and Care Centers

NOTE: The Palo Verde Nuclear Generating Station (PVNGS) Media Kit is available for download through AzEIN.


BE curious

For additional Palo Verde Nuclear Generating Station resources, visit:


·         How PVNGS Works

·         Basic Radiation Information

·         Frequently Asked Questions

·         Glossary

·         Links

(Source: Maricopa Department of Emergency Management)