Enphase Energy (Nasdaq: ENPH) today announced that CertainTeed has chosen Enphase as its exclusive inverter partner for the new Solstice™ AC Solar Roofing System after a thorough competitive review. CertainTeed is one of the leading building materials manufacturers with more than 6,000 employees and a wide customer base of roofing contractors in North America.

The Solstice™ AC Solar Roofing System is comprised of an Enphase M215 microinverter mounted directly to a SolarWorld 250-watt photovoltaic (PV) module and monitored by Enphase’s Enlighten software. The all-in-one Solstice™ AC Solar Roofing System is expected to be available this month and will be available with CertainTeed’s system and installation warranty.

“Enphase is proud to introduce CertainTeed as an Enphase Energized^TM AC Solutions partner. CertainTeed is a building and construction industry leader working with thousands of roofing professionals in North America,” said Paul Nahi, CEO of Enphase Energy. “Solstice will offer CertainTeed’s roofing contractors and solar installers a simplified design, installation and maintenance solution for their PV arrays.”

In the second quarter of 2012, 98.2 megawatts of photovoltaic (PV) modules were installed on homes across North America, according to the Solar Energy Industry Association and GTM Research.

“CertainTeed wants to meet its roofing customers’ demand for an AC solution,” said Mark Stancroff, Director of CertainTeed Solar. “We chose Enphase as our exclusive inverter partner because of their microinverter systems’ long-term, system-wide performance benefits, reliability and monitoring.”

The Enphase Microinverter System combines Enphase M215 Microinverters, the Envoy Communications Gateway and Enlighten web-based monitoring and analysis software to deliver solar systems with increased design flexibility, simplified installation and remote system management. Enphase has shipped over 2.6 million microinverters to customers in Europe and North America.

For more information on other AC Solutions visit the Enphase AC Solutions Marketplace.

About CertainTeed

Through the responsible development of innovative and sustainable building products, CertainTeed, headquartered in Valley Forge, Pa., has helped shape the building products industry for more than 100 years. Founded in 1904 as General Roofing Manufacturing Company, the firm's slogan "Quality Made Certain, Satisfaction Guaranteed," quickly inspired the name CertainTeed. Today, CertainTeed is North America’s leading brand of exterior and interior building products, including roofing, siding, fence, decking, railing, trim, foundations, pipe, insulation, gypsum, ceilings and access covers.

A subsidiary of Saint-Gobain, the world’s largest building products company, CertainTeed and its affiliates have more than 6,000 employees and more than 65 manufacturing facilities throughout the United States and Canada. Recognized as a 2009 and 2010 ENERGY STAR Partner of the Year by the U.S. Environmental Protection Agency, CertainTeed earned the 2011 and 2012 ENERGY STAR Sustained Excellence Award, the highest level of recognition for outstanding contributions to protecting the environment through energy efficiency. The group had total sales of approximately $3.2 billion in 2011. www.certainteed.com

About Enphase Energy, Inc.

Enphase Energy delivers microinverter technology for the solar industry that increases energy production, simplifies design and installation, improves system uptime and reliability, reduces fire safety risk and provides a platform for intelligent energy management. Our semiconductor-based microinverter system converts energy at the individual solar module level and brings a systems-based, high technology approach to solar energy generation. Connect with Enphase on Facebook and follow us on Twitter.www.enphase.com

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