Ascent Solar Quarterly Earnings Conference Call Announcement

Ascent Solar Technologies, Inc. (NASDAQ:ASTI), a developer of flexible thin-film solar modules, announced today that it will hold a conference call to discuss the results for the second quarter ended June 30, 2011, subsequent to the filing of such results after market close on August 15, 2011. The call will be held at 5.00 p.m. Eastern Time.

To listen to the conference call, please dial 877-644-1284 if dialing within the US and 707-287-9355 if dialing internationally, or to participate via audio webcast visit www.ascentsolar.com/events five to ten minutes before the scheduled start time and request to be connected to the Ascent Solar Technologies, Inc. conference call. If you wish to listen to a playback of the conference call, you may dial 855-859-2056 within the US or 404-537-3406 if dialing internationally, the conference pass-code is 91700363. The replay will be available two hours after the conference call. The playback will be available through August 22, 2011.

About Ascent Solar Technologies:

Ascent Solar Technologies, Inc. is a developer of thin-film photovoltaic modules with substrate materials that can be more flexible and affordable than most traditional solar panels. Ascent Solar modules can be directly integrated into standard building materials, commercial transportation, automotive solutions, space applications, consumer electronics for portable power or configured as stand-alone modules for large scale terrestrial deployment. Ascent Solar is headquartered in Thornton, Colo. Additional information can be found at www.ascentsolar.com.

Forward-Looking Statements

Statements in this press release that are not statements of historical or current fact constitute "forward-looking statements." Such forward-looking statements involve known and unknown risks, uncertainties and other unknown factors that could cause the Company's actual operating results to be materially different from any historical results or from any future results expressed or implied by such forward-looking statements. In addition to statements that explicitly describe these risks and uncertainties, readers are urged to consider statements that contain terms such as "may," "will," "should," "believes," "expect," "intend," "anticipate," "plan," "estimate" to be uncertain and forward-looking. The forward-looking statements contained herein are also subject to risks and uncertainties that are described in our most recent annual report on Form 10-K under the heading "Risk Factors" and our subsequent filings with the Securities and Exchange Commission. We do not undertake any obligation to update publicly any forward-looking statements whether as a result of the receipt of new information, future events, or otherwise.