New Energy Unveils Patent-Pending Technology to ‘Spray’ Solar Cells onto See-Thru Windows to Generate Electricity

Novel system to ‘spray’ solar cells onto New Energy’s SolarWindow™ replaces slow, expensive methods with high-speed, cost-saving process; Previous breakthrough replaces ‘visibility-blocking’ metal with see-thru, environmentally-friendly compounds.

Burtonsville, MD – January 11, 2010 – New Energy Technologies, Inc. (OTCBB: NENE), developer of MotionPower™ technologies for generating sustainable electricity from the kinetic energy of moving vehicles and SolarWindow™ technologies capable of generating electricity on see-thru glass windows, today announced that researchers have developed a novel, patent-pending process for ‘spraying’ solar cells and their related components onto glass – a technical achievement recently presented in AZoNano’s (peer-reviewed, Journal of Nanotechnology Online; Dec. 20, 2009), “Nanotechnology Thought Leaders” series.

(Click here to view article: http://www.azonano.com/details.asp?ArticleId=2470)

“The ability to spray solar coatings directly onto glass follows on the heels of our recent breakthrough which replaced visibility-blocking metal with environmentally-friendly see-thru compounds, and marks an important advance in the development of our see-thru glass windows capable of generating electricity,” announced Mr. Meetesh V. Patel, President and CEO of New Energy Technologies, Inc.

“In commercial terms, this new spray technology could translate into important manufacturing advantages for our SolarWindow™, including significant cost-savings, high-speed production, and room-temperature deposition – common barriers to commercial success for innovative solar technologies.”

Once scaled-up for use in commercial-scale production, researchers anticipate the ability to spray solar coatings directly onto New Energy’s first-of-its-kind see-thru SolarWindow™, currently under development, could provide significant commercial production advantages over today’s thin-films. Conventional solar films are typically manufactured using expensive and slow manufacturing methods which rely on high-temperature and finicky ‘vacuum deposition’ processes for depositing solar materials onto substrates; the resultant products are simply too thick to allow for transparency, an important consideration in the development of a commercially viable solar-powered glass window.

Last week, New Energy announced that researchers successfully overcame one of the biggest transparency-related obstacles faced by scientists developing New Energy’s SolarWindow™ technology — the presence of metal, an opaque material which blocks visibility and prevents light from passing through glass. Eliminating metal has proved especially challenging since the metal component acts as the negative ‘polar contact’ – an important function in collecting the electricity generated from solar cells on the surface of the glass.

Last week’s breakthrough replaces this ‘visibility-blocking’ metal with environmentally-friendly and more transparent compounds. These compounds now function as the negative polar contact and collect electricity from New Energy’s SolarWindow™.

(Click here to view press release, announcing “New Energy Achieves Major ‘Transparency’ Breakthrough in Development of See-Thru Windows Capable of Generating Electricity”:
http://www.newenergytechnologiesinc.com/NENE20100104.html)

The production of solar-generated electricity on glass is made possible by the world’s tiniest working solar cells, which along with their related components, have now been successfully sprayed on to glass surfaces by researchers currently developing the Company’s SolarWindow™.

These ultra-small solar cells measure less than 1/4 the size of a grain of rice, are fabricated using environmentally-friendly materials, and successfully produce electricity, as demonstrated in a published peer-reviewed study in the Journal of Renewable and Sustainable Energy of the American Institute of Physics.

(Click here to view study: http://dx.doi.org/10.1063/1.2998825)

Unique performance properties of New Energy’s ultra-small solar cells enable development of an ultra-thin film, only 1/1000th the thickness of a human hair, or 1/10th of a micrometer. In contrast, conventional thin films are exponentially thicker, measuring several micrometers thick and inhibiting transparency. In photovoltaic applications such as see-thru windows, where transparency is a primary concern, today’s thin film solar cells simply cannot be utilized to produce a transparent solar window for application in homes, offices, and commercial buildings.

There are nearly 5 million commercial buildings in America, according to the Energy Information Administration, and more than 80 million single detached homes. New Energy’s SolarWindow™ technology is under development for commercial application in such buildings.

SolarWindow Technologies, Inc. creates transparent electricity-generating liquid coatings. When applied to glass or plastics, these coatings convert passive windows and other materials into electricity generators under natural, artificial, low, shaded, and even reflected light conditions.

Our liquid coating technology has been presented to members of the U.S. Congress and received recognition in numerous industry publications. Our SolarWindow™ technology may generate 50-times the power of a conventional rooftop solar system and may achieve a one-year payback when installed on all four sides of a 50-story building, according to independently-validated power and financial modeling.

Power and Financial Model Disclaimer

The company's Proprietary Power Production & Financial Model (Power & Financial Model) uses photovoltaic (PV) modeling calculations, which are consistent with renewable energy practitioner standards for assessing, evaluating and estimating renewable energy for a PV project. The Power & Financial Model estimator takes into consideration building geographic location, solar radiation for flat-plate collectors (SolarWindow™ irradiance is derated to account for 360 degrees building orientation and vertical installation), climate zone energy use and generalized skyscraper building characteristics when estimating PV power and energy production, and carbon dioxide equivalents. Actual power, energy production and carbon dioxide equivalents modeled may vary based upon building-to-building situational characteristics and varying installation methodologies.

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