Nanosolar, Inc. was a U.S.-based company founded in 2002 that specialized in the development and manufacturing of thin-film solar cells using a proprietary printing process for Copper Indium Gallium Selenide (CIGS) technology. The company aimed to significantly reduce the cost of solar energy by leveraging nanoparticle inks and high-throughput roll-to-roll manufacturing. Despite raising substantial venture capital and achieving some technological milestones, Nanosolar faced intense market competition, manufacturing challenges, and financial difficulties, ultimately leading to its cessation of operations around 2013. Its technology and assets were subsequently acquired by other entities. Nanosolar represented a significant effort in the quest for cheaper and more efficient solar power.
Served as the central hub for research and development, corporate operations, and initial U.S.-based pilot manufacturing of its CIGS thin-film solar panels.
The San Jose facility housed a Class 1000 cleanroom, advanced materials science laboratories, and proprietary high-volume roll-to-roll printing presses designed for its unique CIGS solar cell manufacturing process.
As a high-profile, venture-backed startup in the competitive clean-tech sector, the work culture at Nanosolar's HQ was reportedly intense, innovation-driven, and fast-paced. Employees were focused on groundbreaking materials science and scaling a disruptive manufacturing technology, reflecting a typical Silicon Valley ambition to change a major industry.
The San Jose HQ was pivotal as the birthplace of Nanosolar's core CIGS printing technology and its primary center for R&D. It represented a major effort to commercialize low-cost, scalable thin-film solar energy solutions.
During its operational period, Nanosolar's global functions included research and development (primarily U.S.), manufacturing (U.S. and Germany), international sales and marketing, and supply chain management to support its production and distribution of thin-film solar panels to key markets in North America and Europe. While its physical operational presence was mainly in the US and Germany, its market ambitions were global.
2009 N. First Street
San Jose
California
USA
Address: Frankenfelder Chaussee, Geb. 212, 14943 Luckenwalde, Germany
To leverage Germany's position as a key solar market and manufacturing hub in Europe, enabling Nanosolar to serve European customers more efficiently, reduce logistical costs, and potentially benefit from regional manufacturing expertise and incentives.
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As of April 2025, Nanosolar' leadership includes:
Nanosolar has been backed by several prominent investors over the years, including:
Nanosolar ceased operations around 2013. Consequently, there have been no executive new hires or exits in the last 12 months. Any executive changes would predate the company's closure by many years.
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As Nanosolar is no longer operational, specific email formats are historical and speculative. Companies of its era and type commonly used formats based on first name, last name, or initials combined with the domain '@nanosolar.com'.
[first_initial][last]@nanosolar.com or [first].[last]@nanosolar.com
Format
jdoe@nanosolar.com or jane.doe@nanosolar.com
Example
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Nanosolar Press Release / Reuters • December 18, 2007
Nanosolar announced it had begun commercial shipment of its PowerSheet solar panels, claiming a manufacturing cost below $1 per watt, aiming to make solar electricity cheaper than coal-fired power....more
Greentech Media • August 12, 2010
Nanosolar reported it had shipped over 20 megawatts of its thin-film solar panels and secured additional funding, indicating progress in scaling its production and market reach....more
Greentech Media • June 12, 2012
Nanosolar announced a change in leadership, with Geoff Tate stepping down as CEO and Eugenia Corrales, previously SVP of Engineering and Operations, taking over the role during a challenging period for the company....more
Greentech Media • July 11, 2012
Facing severe financial difficulties, Nanosolar laid off approximately 75% of its workforce. CEO Eugenia Corrales also resigned shortly after her appointment, highlighting the company's deepening crisis....more
Greentech Media • September 16, 2013
Greentech Media reported that Nanosolar had ceased operations and was effectively defunct. Its assets were being liquidated, marking the end for one of the most well-funded CIGS thin-film solar startups....more
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