SolarWindow Technologies raises US$25 million for electricity-generating glass

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SolarWindow Technologies, which develops transparent coatings that turn ordinary glass into electricity-generating windows, has completed a round of equity financing for US$25 million.

Kalen Capital Corporation (KCC) invested approximately US$24.9 million in this round.

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John Conklin, president and CEO of SolarWindow Technologies, said: “This capital infusion marks a historical inflection point for SolarWindow and our nearly 15,000 shareholders. With this capital in hand and a decade of research and development behind us, we can now purchase equipment and hire personnel required for manufacturing of electricity-generating glass, a brand-new form of electrification.”

SolarWindow is currently the subject of more than 90 US and international patents and trademarks for its technology, with this latest funding driving the company toward a commercial project.

Harmel S. Rayat, founder and chairman of SolarWindow, said: “I envision SolarWindow changing the way we power our buildings with clean energy that not only benefits our environment, but also generates greater financial returns. As a commercial real estate investor and building owner, I see huge upside for developers, building owners, and even tenants who can lower their operating costs while increasing property values as green buildings.”

A single SolarWindow installation on a 50-story building, could cut electricity costs by as much as 50% annually, avoid more than two million miles of equivalent carbon dioxide emitted by vehicles on the road, and achieve a one-year financial payback, according to independently-validated engineering modeling.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.

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