NRG Completes 25 MW Avra Valley Solar Photovoltaic Facility

  NRG Completes 25 MW Avra Valley Solar Photovoltaic Facility

 NRG’s sixth operational large-scale solar station generates power for up to
                                 20,000 homes

Business Wire

PRINCETON, N.J. -- December 13, 2012

Today,  NRG Energy, Inc. (NYSE: NRG), through its wholly owned subsidiary NRG
Solar, announced the start of commercial operations for the Avra Valley Solar
Generating Station, a 25 megawatt (AC) photovoltaic facility near Tucson,
Ariz. The station’s electricity will be sold to Tucson Electric Power under a
20-year power purchase agreement.

NRG threw the switch to begin operating its 25 megawatt Avra Valley Solar
Facility near Tucson, Ariz ...

NRG threw the switch to begin operating its 25 megawatt Avra Valley Solar
Facility near Tucson, Arizona.

“Today we celebrate the Avra Valley solar project as an example of our success
in developing solar projects that meet the renewable energy needs of local
utilities and generate cost-effective solar power over the long term,” said
Randy Hickok, Senior Vice President of NRG Solar. “Although NRG has many
distributed solar projects and thermal operations in Arizona, this project
represents our first delivery of solar power to Tucson Electric Power, helping
TEP meet Arizona’s renewable energy goals.”

The NRG system will serve as the single largest solar array in TEP’s renewable
energy portfolio.

“We’ve worked hard to embrace solar energy as a clean, cost-effective
renewable resource for our customers. The NRG system shows how we can expand
our renewable energy portfolio while also investing in our community and
helping to create jobs,” said Paul J. Bonavia, Chairman and CEO of TEP and its
parent company UNS Energy Corporation (NYSE: UNS).

The Avra Valley array will generate enough energy to meet the annual needs of
approximately 5,000 homes, and up to 20,000 homes at peak capacity. Using
clean solar power also avoids the annual emission of approximately 51,500
metric tons of carbon dioxide into the atmosphere, the equivalent of taking
more than 10,700 cars off the road.

Avra Valley is the sixth large-scale solar facility in NRG’s operational
fleet, producing clean solar power for thousands of homes and businesses in
three states. The other five are Agua Caliente in Yuma County, Ariz. (to be
completed in 2014); Roadrunner in Doña Ana County in New Mexico; and Avenal,
Blythe, and California Valley Solar Ranch (to be completed in 2013) in

About NRG and NRG Solar

NRG is at the forefront of changing how people think about and use energy. A
Fortune 300 company, NRG is a pioneer in developing cleaner and smarter energy
choices for our customers: whether as one of the largest solar power
developers in the country, or by building the first privately funded electric
vehicle charging infrastructure or by giving customers the latest smart energy
solutions to better manage their energy use. Our diverse power generating
facilities can support over 20 million homes and our retail electricity
providers—Reliant, Green Mountain Energy Company and Energy Plus—serve more
than two million customers. NRG Solar LLC, a subsidiary of NRG, has more than
2,000 MW of photovoltaic and solar thermal projects under development or in
construction across the southwestern United States. More information is
available at Connect with NRG Energy on Facebook and follow
us on Twitter @nrgenergy.

NRG Safe Harbor Disclosure

This news release contains forward-looking statements within the meaning of
Section 27A of the Securities Act of 1933 and Section 21E of the Securities
Exchange Act of 1934. Such forward-looking statements are subject to certain
risks, uncertainties and assumptions and include NRG’s expectations regarding
the Company’s Avra Valley solar project and forward-looking statements
typically can be identified by the use of words such as “will,” “expect,”
“believe,” and similar terms. Although NRG believes that its expectations are
reasonable, it can give no assurance that these expectations will prove to
have been correct, and actual results may vary materially. Factors that could
cause actual results to differ materially from those contemplated above
include, among others, general economic conditions, hazards customary in the
power industry, competition in wholesale power markets, the volatility of
energy and fuel prices, failure of customers to perform under contracts,
changes in the wholesale power markets, changes in government regulation of
markets and of environmental emissions, and our ability to achieve the
expected benefits and timing of our electric vehicle projects. NRG undertakes
no obligation to update or revise any forward-looking statements, whether as a
result of new information, future events or otherwise. The foregoing review of
factors that could cause NRG’s actual results to differ materially from those
contemplated in the forward-looking statements included in this news release
should be considered in connection with information regarding risks and
uncertainties that may affect NRG’s future results included in NRG’s filings
with the Securities and Exchange Commission at

Photos/Multimedia Gallery Available:



Lori Neuman, 609.524.4525
Dave Knox, 713.537.2130
Chad Plotkin, 609.524.4526
Stefan Kimball, 609.524.4527
Tucson Electric Power
Joseph Barrios, 520.884.3725
Chris Norman, 520.884.3649
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