Accelerating Commercialization of Advanced Energy Efficient Windows

Clear, Energy Efficient Commercial Building Windows

Ubiquitous Energy, Inc.


Redwood City, CA

Recipient Location


Senate District


Assembly District



Amount Spent



Project Status

Project Result

In 2022, the project team completed the technical scope of the project including final testing and field evaluation of the second generation transparent solar 14" x 20" pilot prototype window units. The testing work with external laboratories for durability testing against window and solar industry standards will continue beyond the end of the project. Also, the project team completed the end of project activities which include submitting final project benefits information, fact sheets for the project, knowledge transfer activities, and submitting a production readiness plan. As the BRIDGE project’s technical activities concluded the project team shifted over their focus to follow-on activities to continue progressing the transparent solar technology towards high volume manufacturing, some of which is within the scope of the RAMP project which focuses on scaling to manufacturing size and readiness. As the entire technical scope of the current project has concluded, the team expects to work with the CEC on final project close out activities in early 2023, including finalizing the final report and conducting the final meeting for a CEC and CPUC audience.

The Issue

Although premium low-E windows maximize the rejection of excessive heat from entering a building, it usually does so at an unwanted aesthetic tradeoff as seen in the windows having an undesired pink-purple color tint. Additionally, the solar heat being reflected back into the environment is not being captured as useful energy. To date, there is not a market ready window product that effectively prevents heat from entering the building through the windows, generates renewable energy, and is easily manufactured at an attractive price point.

Project Innovation

This project will scale Ubiquitous Energy's ClearView PowerTM technology to meet the size requirements and specifications needed for window production. ClearView PowerTM is a transparent solar coating that, when applied to glass, selectively absorbs and converts non-visible light to electricity while also blocking the infrared light that causes heat gains in buildings. As part of this project, Ubiquitous Energy will demonstrate that the solar coating application can be integrated into a standard glass manufacturing process.

Project Goals

Develop and test three generations of UE’s window prototypes.
Conduct internal and external testing of the UE window prototypes.
Conduct advanced manufacturing R&D to produce UE window prototypes.

Project Benefits

The mass-market commercialization of clear windows that generate renewable energy and premium insulation will provide demonstrable improvements over existing low-E windows currently used in commercial buildings. This will allow California to better design and create zero net energy (ZNE) buildings to meet the state's energy efficiency goals. Furthermore, CVP's solar generating capabilities would broaden the application and generation of solar energy throughout California.

Lower Costs


The increased insulation and electric generation will lower the operation costs of commercial buildings in California.

Key Project Members

Veeral Hardev

Veeral Hardev

Director of Business Development
Miles Barr

Miles Barr

Ubiquitous Energy



Lawrence Berkeley National Laboratory


Match Partners


Lawrence Berkeley National Laboratory


Ubiquitous Energy, Inc.


Contact the Team