Palo Verde Sets New Mark for Outage Efficiency

  Palo Verde Sets New Mark for Outage Efficiency

                 Unit 1 outage completed in less than 30 days

Business Wire

PHOENIX -- May 3, 2013

For the first time in the plant’s history, a planned refueling outage at the
Palo Verde Nuclear Generating Station has been completed in less than 30 days.
This year’s Unit 1 spring refueling outage began on March 30 and was completed
last Sunday, April 28 – in a total time of 29 days, 18 hours.

Palo Verde Nuclear Generating Station's three 1,340-megawatt (net) generating
units are on an 18-mon ...

Palo Verde Nuclear Generating Station's three 1,340-megawatt (net) generating
units are on an 18-month refueling cycle, with two refueling outages scheduled
each year - one in the spring and another in the fall. Palo Verde is operated
by Arizona Public Service (APS). (Photo: Business Wire)

The sub-30 day outage is an achievement that should be appreciated by the
entire company, said APS Chairman and CEO Don Brandt.

“This effort all goes back to the often-repeatedvision statementat Palo
Verde: ‘We safely and efficiently generate electricity for the long term,’”
Brandt said. “This record-setting outage was accomplished with safety and
efficiency always top of mind. Congratulations to the crew at Palo Verde and
to the entire APS workforce.”

This outage demonstrated the ability of Palo Verde staff to effectively – and
safely – reduce the facility’s plant refueling outage time for each unit to 30
days or less. The previous shortest Palo Verde refueling outage was 31 days in
fall 2012.

Customers directly benefit from shorter refueling outages because Palo Verde
provides a reliable supply of low-cost electricity which – particularly
through the hot Arizona summers – is essential to serving our customers, said
Randy Edington, APS Executive Vice President and Chief Nuclear Officer. “The
more days Palo Verde is operating rather than in a refueling outage, the more
cost-effective energy is available to customers across Arizona and the

“This was a tremendous effort by the entire Palo Verde team,” he added. “All
our refueling outage goals were met, and the leadership and organizational
effectiveness was excellent throughout the outage.It sets the stage forthis
kind of outage effort going forward and becoming our norm.”

In 2012, Palo Verde achieved its 21^st consecutive year as the nation’s
largest power producer. Palo Verde is the only U.S. generating facility to
ever produce more than 30 million megawatt-hours in a year – an operational
accomplishment the plant has achieved eight times.

Also in 2012, according to industry data, Unit 1 produced more electricity in
2012 than any other reactor in the United States and was the third most
productive in the world.

In addition to the energy produced, Palo Verde has an estimated annual
economic impact of $1.8 billion in Arizona through taxes, salaries, purchases
of materials and services, and more.

Palo Verde is operated by APS and jointly owned by APS, Salt River Project,
Southern California Edison Co., El Paso Electric, Public Service Co. of New
Mexico, Southern California Public Power Authority and the Los Angeles
Department of Water & Power.

APS, Arizona’s largest and longest-serving electricity utility, serves more
than 1.1 million customers in 11 of the state’s 15 counties. With headquarters
in Phoenix, APS is the principal subsidiary of Pinnacle West Capital Corp.

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Media Contacts:
Jordan Karem, 602-615-1214
Alan Bunnell, 602-250-3376
Analyst Contact:
Rebecca Hickman, 602-250-5668
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