National Energy Renewable Laboratory (NREL) Certifies Konarka’s Photovoltaic Solar Cells at 6.4% Record Efficiency

Highest Efficiency Rate Recorded by NREL, Konarka Continues to Advance Performance of Photovoltaics at Significant Pace

Lowell, Mass. — May 19, 2009 — Konarka Technologies, Inc., an innovator in development and commercialization of Konarka Power Plastic®, a material that converts light to energy, today announced that the National Energy Renewable Laboratory (NREL) has certified that Konarka’s organic based photovoltaic (OPV) solar cells have demonstrated 6.4% efficiency. This is the highest performance recorded by NREL for an organic photovoltaic solar cell, suggesting that Konarka continues to advance the technology at a significant pace. In December, Dr. Alan Heeger of the University of California, Santa Barbara, and chief scientist at Konarka, received verification from NREL for a 6% organic PV cell. NREL is a world leader in solar energy design and testing, offering very reliable, accurate and precise methods of measuring efficiency performance.

“We are pleased with the progress of the efficiencies demonstrated by our Power Plastic material,” stated Rick Hess, president and CEO at Konarka. “This NREL certification of 6.4% is another milestone to developing lightweight, flexible plastic solar modules with high efficiency.”

This certification is the latest example of Konarka demonstrating the high performance potential of organic photovoltaics technology to produce a truly cost-effective renewable power solution.

Konarka Power Plastic is a patent-protected thin film solar material that is lightweight and flexible. The unique material lends itself to a wide range of applications where traditional photovoltaics are not effective.

About NREL
NREL is the U.S. Department of Energy's primary national laboratory for renewable energy and energy efficiency research and development. NREL is operated for DOE by The Alliance for Sustainable Energy, LLC. More about NREL’s photovoltaic research can be found at http://www.nrel.gov/.

About Konarka Technologies, Inc.
Konarka develops and manufactures solar plastic films that convert light to energy – anywhere. As the leading developer of polymer-based, organic photovoltaic (OPV) technology that provides a source of renewable power in a variety of form factors, Konarka has a broad portfolio of patents, technology licenses and an accomplished technical, scientific and manufacturing team. Manufactured at low cost and low energy consumption, the company's Konarka Power Plastic® technology is lightweight, flexible, scalable and adaptable for use in a variety of commercial, industrial, government and consumer applications. Konarka Technologies is headquartered in Lowell, Mass., U.S.A. and has a full scale production manufacturing facility in New Bedford, Mass. U.S.A., with European headquarters in Nurnberg, Germany, business development offices in Asia and a research and development facility in Austria. For additional information, visit http://www.konarka.com.

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