SolarWindow Technologies(OTC) WNDW

SolarWindow makes coatings that turn glass into electricity-generating surfaces. These coatings help buildings, vehicles, and greenhouses create their own power. The technology aims to lower energy costs for users by using sunlight and indoor light.

Window Shopping for Power: Products and Services

• LiquidElectricity coatings: Transparent layers for glass and plastic that generate electricity from sunlight or artificial light. (0% of revenue; pre-commercialization)
• Building-integrated photovoltaics: Coatings for windows in offices and homes to help generate on-site power. (0% of revenue)
• Automotive and transportation: Coatings for vehicle windows and surfaces to supply auxiliary power. (0% of revenue)
• Agrivoltaic and greenhouse use: Coatings for greenhouse glass to power lighting or equipment. (0% of revenue)
• Aerospace and marine: Coatings for aircraft and boats to generate electricity from available light. (0% of revenue)

Growth and Expansion: The SolarWindow Story So Far

• Partnered with U.S. Department of Energy’s National Renewable Energy Laboratory since 2011, with agreement extended through December 2025.
• Signed joint development agreement with Lippert Components in August 2024 to explore product integration.
• Raised $3.9 million in June 2025 through a self-directed equity offering to fund ongoing development.
• Dissolved Korean subsidiary, SolarWindow Asia, in January 2023 to focus on core U.S. operations.

What Makes SolarWindow Stand Out

SolarWindow focuses on transparent coatings that generate electricity without blocking light. The company works with research labs and industry partners to develop scalable manufacturing. Its business model relies on licensing and partnerships, not direct sales.

Five Things You Need to Know

• Revenue was $0 for Q3 2025, unchanged from Q3 2024 and Q3 2023.
• Net loss attributable to common stockholders was $545,719 in Q3 2025, improved 62.7% from $1,462,314 in Q3 2024.
• Operating expenses were $553,508 in Q3 2025, improved by 35.3% year-over-year.
• Cash and cash equivalents were $3,237,670 as of May 31, 2025, compared to $1,249,446 as of May 31, 2024.
• No debt or credit facilities as of May 31, 2025; operations have been financed primarily from equity funding.

Bottom Line

SolarWindow remains in the research phase, with no commercial sales to date. The company relies on partnerships and equity funding to advance its electricity-generating coatings.