What SolarWindow Technologies does

SolarWindow Technologies, Inc. (OTCQB: WNDW) is a development-stage company commercializing transparent electricity-generating coatings under its LiquidElectricity® brand. The technology applies ultra-thin (1/100th the thickness of a human hair) organic photovoltaic (OPV) layers to ordinary glass and flexible plastics, enabling surfaces to generate electricity under natural, artificial, low-light, shaded, and reflected light. The proprietary platform includes nearly invisible micro-scale power-line architectures embedded in glass and has achieved a record 14.72% power conversion efficiency independently certified by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) under a CRADA. More than 90 U.S. and international patents and trademarks protect the formulations, processes, and flexible substrate integration methods.

The company's targeted applications span architectural windows, facades, skylights, and curtain walls for the 5.6 million U.S. commercial buildings and 85 million detached homes market, as well as automotive sunroofs, marine vessels, aerospace, commercial trucking, agrivoltaics, and consumer-facing sub-brands such as "Clearly Electric." Products are not yet commercially available and pricing is undisclosed. SolarWindow employs a partnership-driven go-to-market model rather than direct sales: a 2024 Framework Agreement with Lippert Components (a Fortune 1000 OEM manufacturing 23,000+ windows daily across 140 facilities and consuming 330 million square feet of glass annually) anchors commercialization, complemented by technology licenses to glass manufacturers, a Process Integration and Production Agreement with Triview Glass Industries, an alliance with coating-equipment supplier nTact, and a long-standing materials partnership with Raynergy Tek in Taiwan.

Revenue is null as of the most recent filings; the company has financed operations through approximately $34.2 million in disclosed equity raises across 2016, 2018, and 2025. Future revenue is expected to derive from a mix of licensing royalties, OEM-embedded product sales, and partnership-driven managed services arrangements, contingent on commercializing the first products with Lippert and other manufacturers. Operations are headquartered in Scottsdale, Arizona, with a wholly-owned Korean subsidiary established in 2023 and contract staff across the United States, Canada, and South Korea. Governance is led by Chairman Harmel S. Rayat (founder, whose family office Kalen Capital Corporation provided the bulk of historical funding), President & CEO Amit Singh, CFO Steve Yan-Klassen, and Principal Scientist Dr. James Whitaker, with recent board additions including Francisco Javier Bono Perez and Bob Levine.

Name

SolarWindow Technologies

Legal name

SolarWindow Technologies, Inc.

Website

https://solarwindow.com

Company type

Public

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

SolarWindow Technologies is a development-stage company that develops LiquidElectricity®, ultra-thin transparent photovoltaic coatings applied to glass and plastics to generate electricity, targeting commercial buildings, transportation, and specialty OEM applications through partnership-driven commercialization.

Ownership category

akta.pro rank

Product category

Building-Integrated Photovoltaics / Transparent Solar Coatings

SIC

Glass Products, Made Of Purchased Glass (3231)

akta.pro primary industry

Next-Gen Photovoltaics R&D (Perovskite, Tandem, Organic, BIPV Materials) (EUAMAOAA)

akta.pro secondary industry

Low‑E, Solar Control & Energy-Efficient Coated Glass (IMADAHAF)

Keywords

• Transparent solar coatings
• Building-integrated photovoltaics
• Electricity-generating glass
• Organic photovoltaic coatings
• LiquidElectricity technology

Headquarters

HQ city

Columbia

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales, Supply Chain, Others

Revenue model

1. Product Sales (Electricity-Generating Glass and Plastics): The company is developing transparent electricity-generating products including windows, facades, skylights, sunroofs, and flat or curved glass for buildings, greenhouses, automotive and aerospace applications. Products are currently under development and not yet commercially available.
2. Technology Licensing: SolarWindow aims to license its LiquidElectricity® technology and manufacturing processes to established manufacturers with global production platforms, enabling rapid market scaling through partner commercialization.
3. Strategic Manufacturing Partnerships: Collaborative manufacturing arrangements with partners like Lippert Components for integration of SolarWindow technologies into select products including recreational vehicles, marine vessels, and specialty building products.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

SolarWindow Technologies develops and is commercializing LiquidElectricity®, a proprietary system of transparent, ultra-thin liquid coatings applied to glass and plastics that generate electricity from natural, artificial, low, shaded, and reflected light using organic photovoltaic (OPV) chemistry. Its flagship commercial outputs are SolarWindow™ electricity-generating glass and SolarWindow-Lippert Products (under joint development with Lippert Components for recreational vehicles, marine vessels, and specialty building products), with go-to-market delivered primarily through OEM partnerships and technology licensing rather than direct retail sale.

Product overview

SolarWindow Technologies offers a unified core technology platform called LiquidElectricity®, which consists of transparent electricity-generating liquid coatings applied to glass and plastics. The company's primary product offerings include SolarWindow™ electricity-generating glass and transparent coatings that work under natural, artificial, and low-light conditions. The company is also developing SolarWindow-Lippert Products in partnership with Lippert Components for specific market applications. All products share the same underlying LiquidElectricity® coating technology platform, which converts light energy into electrical power through organic photovoltaic materials applied in ultra-thin layers.

Differentiator

Problem solved

Functional benefit

Brands

• LiquidElectricity®: Proprietary transparent electricity-generating coatings and processes for glass and plastics that generate electricity under natural, artificial, low, shaded, and reflected light conditions.

Products and services

• LiquidElectricity® Transparent Electricity-Generating Coatings Proprietary transparent, ultra-thin (1/100th thickness of a human hair) liquid coatings applied to glass and flexible plastics that generate electricity under natural, artificial, low, shaded, and reflected light, using earth-abundant, non-toxic organic photovoltaic materials. Designed for OEMs and glass manufacturers as the underlying chemistry for electricity-generating surfaces; not sold directly to consumers.
• SolarWindow™ Electricity-Generating Glass Transparent glass products coated with LiquidElectricity® technology that generate electricity while maintaining visibility. Specified for installation on building facades, skylights, sunroofs, and other glass surfaces to produce on-site renewable power; under development for commercial buildings, residential homes, automotive, aerospace, and marine applications.
• SolarWindow-Lippert Products Transparent electricity-generating glass products under joint development with Lippert Components (Fortune 1000, 140 manufacturing/distribution facilities, 23,000+ windows manufactured daily), targeted at integration into Lippert's recreational vehicles, marine vessels, and specialty building product lines. Manufactured and sold by Lippert using SolarWindow's LiquidElectricity® coatings technology.

Quantifiable outcome

• 14.72% power conversion efficiency, independently certified by NREL, more than doubling prior certified performance
• +4 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered flagship, core and supporting.

• Lippert Components Inc.flagshipStrategic or Co-development Partner · 10 September 2024SolarWindow and Lippert entered a Framework Agreement to jointly pursue integration of SolarWindow technologies into select Lippert components to produce transparent electricity-generating SolarWindow-Lippert Products for recreational vehicles, marine vessels, and specialty building products. Lippert is a Fortune 1000 company and one of the largest non-float glass manufacturers in the world, manufacturing over 23,000 windows daily and consuming 330 million square feet of glass annually.
• Raynergy TekcoreTechnology or IntegrationWorld leader in organic photovoltaic technology headquartered in Taiwan, backed by publicly listed companies. Long-standing collaboration with Raynergy has optimized the power and transparency of SolarWindow electricity-generating products under development. Raynergy develops next-generation materials in chemistry, materials science, and device physics.
• U.S. Department of Energy - National Renewable Energy Laboratory (NREL)coreTechnology or IntegrationCooperative Research and Development Agreement (CRADA) with NREL in Golden, Colorado for development and testing of transparent electricity-generating glass. NREL's Device Performance Measurement Laboratory is one of four in the world certified under the World Photovoltaic Scale, and the only U.S. laboratory certified to calibrate primary reference cells.
• nTactsupportingTechnology or IntegrationGlobal leader in coating process equipment. Alliance to prototype, test, and manufacture machinery and equipment necessary for coating glass and flexible materials with SolarWindow's transparent electricity-generating coatings for creation of a manufacturing line.
• Triview Glass Industries, LLCsupportingStrategic or Co-development PartnerAward-winning custom glass fabricator located in suburban Los Angeles. Process Integration and Production Agreement for fabrication of specific SolarWindow electricity-generating glass products at commercial scale.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Ubiquitous Energy: Developer of transparent electricity-generating coatings (UE Power) for windows and glass surfaces. Direct competitor in transparent OPV/BIPV technology targeting architectural glass, with similar coating-based go-to-market.
• Heliatek: Germany-based pioneer in organic photovoltaic (OPV) film technology for building-integrated and façade applications. Direct peer in transparent OPV coatings targeting architectural glass and BIPV markets.
• ClearVue Technologies: Australia-listed company developing transparent solar glass for buildings and greenhouses using nanoparticle-based coating technology. Comparable in product (transparent solar glazing), target market (commercial/residential buildings), and pre-revenue development stage.

Emerging players

• Physee: Dutch developer of smart glass coatings that generate and manage energy on building windows (PowerWindow). Comparable as a transparent solar glass startup targeting commercial buildings.
• Swift Solar: U.S. perovskite solar startup developing high-efficiency perovskite and tandem cells for building and rooftop deployment. Adjacent peer in next-generation PV with overlapping end-markets including architectural integration.
• Sunlit Sea: Developer of transparent photovoltaic solutions for marine applications. Overlaps with SolarWindow's marine vessel target segment using transparent energy-harvesting glass.

Broad incumbents

• Onyx Solar: Spanish manufacturer of photovoltaic glass for building façades, skylights, and curtain walls. Comparable in integrating solar generation into architectural glazing, with a more established commercial product line.
• Oxford PV: UK/Germany-based leader in perovskite-silicon tandem solar cells, with manufacturing scale-up underway. Comparable as a next-generation PV company targeting integration into building and rooftop products, though operating at a much larger capitalization and broader technology scope.
• Caelux (by First Solar): Acquired by First Solar, Caelux develops perovskite-based tandem technology for next-generation solar. Comparable as a well-capitalized next-gen PV player pursuing efficiency gains relevant to BIPV applications.

Others

• Raynergy Tek: Taiwan-based world leader in OPV materials and technology, and a long-standing technology partner of SolarWindow. Included as an ecosystem partner/competitor in the same OPV value chain.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/solartechwindow
• YouTubeyoutube.com/channel/solarwindow
• Facebookfacebook.com/SolarWindowTechnologies
• LinkedInlinkedin.com/company/solar-window-technology

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

Funding overview

Funding rounds4 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SolarWindow Technologies