AVRA VALLEY SOLAR PROJECT
PROJECT OVERVIEW

Project Overview

NRG Energy, through its wholly owned subsidiary NRG Solar, is developing the Avra Valley Solar Project, a 25 megawatt (MW) solar photovoltaic facility west of Tucson, Arizona. Once operational, the facility will produce clean, renewable electricity that will be sold to Tucson Electric Power under a 20-year power purchase agreement.

At full capacity, the Avra Valley Solar Project will generate enough power to supply approximately 20,000 homes. In addition to helping Arizona diversify its generation portfolio and meets the state's renewable energy goals, the project will create as many as 300 construction jobs. The Avra Valley Solar Project is located on approximately 300 acres of fallow agricultural land, located about 20 miles west of Tucson, Arizona. NRG Solar anticipates breaking ground on the project in the fourth quarter of 2011, with an expected completion in 2012.

NRG Solar is developing two complementary technologies—photovoltaics and solar thermal—and owns a 21 MW solar facility in Blythe, Calif., one of the first large-scale solar plants built in the United States since 1990. Altogether, NRG Solar has more than 2,000 MW of solar projects under development or in construction across the southwestern United States.

NRG Energy, Inc. is a Fortune 500 and S&P 500 Index company that is one of the industry's largest providers of electricity and the nation's largest developer of solar power. With diverse generation resources totaling more than 25,000 megawatts, NRG is able to power more than 20 million homes and our retail operations provide electricity to nearly two million customers.

Project Benefits

• Zero-carbon generation will avoid the annual emission of 33,000 tons of carbon into the atmosphere, the equivalent of taking 6,000 cars off the road
• Will create up to 300 construction jobs
• Commercially proven solar technology
• Minimal water consumption
• Efficient and environmentally friendly power generation
• Helps Arizona meet renewable energy goals

For more information, view the project fact sheet.

For more information, contact:

	NRG Solar 5790 Fleet Street, Suite 200 Carlsbad, CA 92008 760.710.2140 www.nrgsolarenergy.com	Development: James Kelly 760.710.2205 james.kelly@nrgenergy.com	Media: Lori Neuman 609.524.4525 lori.neuman@nrgenergy.com