Entech Solar Set to Begin Certification Testing on Latest Concentrating Photovoltaic Module

September 17, 2010

FORT WORTH, Texas--(BUSINESS WIRE)--Entech Solar, Inc. (OTCBB: ENSL) (the “Company” or “Entech Solar”) today announced that it currently expects to submit its latest concentrating photovoltaic (CPV) product called SolarVolt™ for independent certification testing by September 30, 2010. This milestone is a key step in commercializing the Company’s latest CPV product designed to produce electricity for large commercial, industrial, government and utility applications. This key step places the Company on target to have a fully certified product for commercialization by mid-2011 to address the rapidly growing global photovoltaic market. This new Entech Solar product is protected by several issued and pending patents. Over the past two years, the price per watt of one-sun photovoltaic modules has dropped dramatically, by approximately 50%. Consequently, Entech Solar accelerated the development of a low-cost, highly reliable CPV module design aimed at keeping the Company’s technology cost-competitive for many years ahead. This advanced fifth generation module is firmly based on the field-proven heritage of Entech Solar’s previous generations of CPV modules and systems. The Entech Solar team has been involved in the research, development, field testing and commercialization of CPV technology for both ground and space applications for more than three decades. Entech Solar’s earlier development work through January 2010 on an advanced ThermaVolt (CPVT) module that generates both electricity and thermal energy, and its 24 years of development work on space CPV systems for NASA and the US Department of Defense, were very beneficial to the development of the new CPV module for ground based applications. Entech Solar, Inc. is a leading developer of renewable energy technologies and sustainable daylighting solutions for the commercial, industrial and utility markets. Entech Solar designs concentrating solar modules that produce electricity from sunlight as part of the SolarVolt™ product line. The Company also manufactures and markets the Entech™ Tubular Skylight, a state-of-the-art tubular skylight that provides superior light output and optical efficiency for the commercial and industrial green building initiatives.

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