AT&T's first solar project in its home state expands its alternative energy portfolio

LANCASTER, Texas, Feb. 13, 2015 -- SunEdison, Inc. (NYSE: SUNE), the world's largest renewable energy development company, today announced the completion of a 677 kilowatt ground-mount solar photovoltaic (PV) system that will provide energy for the AT&T (NYSE: T) materials distribution facility in Lancaster, Texas.

"SunEdison and AT&T have a long history of working together to develop and implement renewable energy systems at AT&T sites in New Jersey and California," said Rafael Dobrzynski, SVP and General Manager of Commercial and Industrial Distributed Generation at SunEdison. "We're really pleased we can deliver great energy savings in their home state of Texas."

"AT&T is proud to introduce this new solar power installation in Lancaster," said Holly Reed, Regional Vice President of AT&T. "We are continuously seeking opportunities to add renewable energy resources to power our business operations. We see the benefits that come from diversifying our energy supply to include sources like solar. Lancaster is the perfect community to continue our solar collaboration right here in Texas."

AT&T and SunEdison have worked together since 2010, and in 2012 AT&T awarded SunEdison with a Supplier Sustainability Award for helping launch its solar energy efforts. This 677 kilowatt ground-mount solar power plant is the latest collaboration between the companies. The system is constructed using 2,000 high-efficiency SunEdison solar panels. SunEdison is also working with TerraForm Power on this project.

AT&T and SunEdison's fleet of solar power arrays have generated over 8.6 million kWh of clean on-site energy. From an environmental perspective, this is estimated to have prevented over 13 million pounds of carbon dioxide from entering the atmosphere.1 That's equivalent to 14,000,000 car miles not driven, the power to run 540 homes for a year, or the CO2 benefit of 4,000 acres of US forests.2

About SunEdison
SunEdison is the world's largest renewable energy development company and is transforming the
way energy is generated, distributed, and owned around the globe. The company manufactures solar technology and develops, finances, installs, owns and operates wind and solar power plants, delivering predictably priced electricity to its residential, commercial, government and utility customers. SunEdison is one of the world's largest renewable energy asset managers and provides asset management, operations and maintenance, monitoring and reporting services for its renewable energy customers around the world. Corporate headquarters are in the United States, with additional offices around the world. SunEdison's common stock is listed on the New York Stock Exchange under the symbol "SUNE." To learn more visit www.sunedison.com.

About AT&T
AT&T Inc. (NYSE: T) helps millions of people and businesses around the globe stay connected through leading wireless, high-speed Internet, voice and cloud-based services. We're helping people mobilize their worlds with state-of-the-art communications, entertainment services and amazing innovations like connected cars and devices for homes, offices and points in between. Our U.S. wireless network offers customers the nation's strongest LTE signal and the nation's most reliable 4G LTE network. We offer the best global wireless coverage. We're improving how our customers stay entertained and informed with AT&T U-verse TV and High Speed Internet services. And businesses worldwide are serving their customers better with AT&T's mobility and highly secure cloud solutions. Additional information about AT&T products and services is available at http://about.att.com.