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

Facebook
Twitter
LinkedIn
Reddit
Email

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.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

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.

Read Next

August 27, 2026
US- and Canada-based PV module producer Heliene is among the companies trialling a new American-made solar glass currently being tested for sale in the US market.
August 27, 2026
This week's PV Chart of the Week looks at forecast solar PV supply chain from polysilicon to modules until 2027.
August 27, 2026
US President Donald Trump has banned the import of inverters, transformers and other power equipment that pose a potential risk to US grid security.
Premium
August 27, 2026
Domestically produced solar glass is a key gap in the US PV manufacturing ecosystem. Tom Kenning reports on efforts to kick-start local production of this vital material
August 27, 2026
Burns & McDonnell and Gritt partner to deploy AI-powered robotics for safer, more predictable utility-scale solar construction.
August 27, 2026
US eBOS manufacturer Shoals has been granted a successful verdict and US$96 million in damages by a court in North Carolina in its intellectual property dispute with fellow US manufacturer Voltage.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK