Ascent Solar Technologies Achieves Record 15.7% Efficiency in CIGS Solar Technology at Production Scale

Ascent Solar Technologies Achieves Record New Efficiency of 15.7% at Production Scale for its CIGS Solar Technology

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June 09, 2025, 08:30 ET | Source: Ascent Solar Technologies, Inc.

THORNTON, Colo., June 09, 2025 (GLOBE NEWSWIRE) — Ascent Solar Technologies, Inc. (Nasdaq: ASTI), a leading U.S. innovator in the design and manufacturing of lightweight, flexible, and durable CIGS thin-film photovoltaic (PV) solutions, has announced a remarkable achievement: its thin-film CIGS technology has reached a record efficiency of 15.7% (AM0) at production scale. This milestone is part of the Company’s strategic plan for 2025, which focuses on enhancing the quality of its thin-film PV materials, improving technological efficiency, and optimizing production design to broaden the technology’s application in the space market.

Utilizing the Titan™, a module approximately one square foot in size, Ascent can now generate an impressive 15.7 watts of power per unit. These modules are about 0.03 mm thick and weigh just over eight grams, boasting a remarkable power density of 1960W/kg before encapsulation. Since September 2023, Ascent’s engineering and production teams have consistently improved device efficiency and overall performance. Over the past 18 months, the Company has achieved significant milestones in efficiency testing, with the latest accomplishment of 15.7% representing a substantial increase from earlier figures:

– Q3 2023: 11.6 watts
– Q4 2023: 13.3 watts
– Q1 2024: 14.0 watts
– Q2 2025: 15.7 watts
(Note: Power generation figures reflect STC conditions and AM0)

“Our ongoing efficiency improvements for our CIGS arrays are a direct result of the relentless focus on process enhancement and advanced device engineering from our U.S.-based manufacturing team,” stated Paul Warley, CEO of Ascent Solar Technologies. “The significant leap in device efficiency we’ve experienced over the past two years has greatly prepared our technology for the space market, making it an ideal solar material choice for satellite power systems and other spacecraft.”

### About Ascent Solar Technologies, Inc.

With 40 years of research and development, 15 years of manufacturing experience, numerous awards, and a comprehensive portfolio of intellectual property and patents, Ascent Solar Technologies, Inc. is a top provider of innovative, high-performance, flexible thin-film solar panels. These panels are designed for environments where mass, performance, reliability, and resilience are critical. Ascent’s photovoltaic (PV) modules have been utilized in space missions, various airborne vehicles, agrivoltaic installations, industrial and commercial construction, as well as a wide range of consumer goods, revolutionizing the applications and environments for solar energy. The Company’s research and development center and 5-MW nameplate production facility are located in Thornton, Colorado. For more information, visit [Ascent Solar Technologies](https://www.ascentsolar.com).

### Forward-Looking Statements

This press release includes “forward-looking statements” that are not historical or current facts, including comments about the financing transaction, business strategy, and potential uses of proceeds. These forward-looking statements involve known and unknown risks, uncertainties, and other factors that could cause actual results to differ materially from any historical results or results implied by such statements. These statements are based on current assumptions, expectations, and projections about future events. Readers are encouraged to consider terms such as “will,” “believes,” “expects,” “intends,” and “plans” as indicators of forward-looking statements. No information herein should be interpreted as an indication of future revenues, stock price, or operational results. Forward-looking statements are also subject to other risks and uncertainties, as described in the Company’s filings with the Securities and Exchange Commission, including those in the “Risk Factors” section of the most recent reports on Forms 10-K and 10-Q.

### Media Contact
Spencer Herrmann
FischTank PR
ascent@fischtankpr.com

**Tags**: CIGS, PV technology, Climate Tech, Renewable Energy, Thin Film Solar, Space Solar, Solar PV, Space