XsunX Produces Transparent Solar Cell on Thin-Film Plastic

ALISO VIEJO, Calif., May 31, 2005 - XsunX, Inc. (OTCBB: XSNX), developer of Power Glass(TM), an innovative solar technology that allows glass windows to produce electricity from the power of the sun, announced today that its recent success in the development of low temperature manufacturing techniques has allowed the Company to produce its first transparent solar cell on inexpensive true thin-film plastic.

Adding to the importance of this development, the Company anticipates that in addition to samples on glass, it will soon begin providing certain qualified manufacturers with samples of its Power Glass(TM) on plastic films.

XsunX's recent expansion of its R&D capabilities and the addition of technical expertise in key research areas of thin-films have produced new prototypes of Power Glass(TM) on transparent polyesters such as Polyethylene Terephthalate, or PET, and Polyethylene Naphthalate, or PEN. This represents a major milestone for the Company as these plastics require low processing temperatures and represent some of the thinnest, lightest, and least expensive substrates for solar cell manufacturing.

``The modern glass industry has grown very familiar with the wide use of PET and PEN films with special coatings to reduce heat gain or provide UV filtering properties,'' said Tom Djokovich, XsunX's CEO. ``Our goal has been to deliver to the industry the ability to use these same films coated with the XsunX Power Glass(TM) transparent solar cell. We believe that leveraging the glass industries familiarity with the manufacture and use of products that employ these types of high performance coatings on PEN and PET plastics will open up new markets for the glass industry that extend far past simple solar heat and UV control,'' concluded Mr. Djokovich.

XsunX believes that the use of PET and PEN plastics to produce large rolls of true thin-film transparent solar cells may represent a high degree of commercial viability to the multi-billion dollar glass and high performance coatings industry. Power Glass(TM) technology is intended to allow photovoltaic material, in the form of photoelectric panels on thin-film plastics, to be incorporated into the glass skin of a building, thus providing a new and innovative way to integrate additional sources of power production into the operation of buildings.