Dynamic Windows Using Reversible Metal Electrodeposition

Project Website: tynt.io
Lead Performer: Tynt Technologies – Boulder, CO
Partners:
-- University of Colorado – Boulder, CO
-- University of Nevada – Reno, NV
DOE Total Funding: $1,500,000
FY23 DOE Funding: $585,834
Cost Share: $492,735
Project Term: October 1, 2021 – September 30, 2024
Funding Type: Lab Award

Project Objective

Dynamic, smart, windows with the ability to tune both light and heat flow offer enormous potential for reducing energy usage in buildings. The current state-of-the-art dynamic windows made by View, Sage, and Halio utilize electrochromic metal oxides that require complex processing and materials and are too expensive for widespread market adoption (>$50/sq. ft.). In addition, these technical approaches fail to achieve the proper color, being too yellow in the clear state and too blue in the dark state, and have a limited optical dynamic range, making them unqualified for privacy applications in the residential market.

Tynt Technologies is developing next-generation dynamic windows based on Reversible Metal Electrodeposition (RME). This unique approach differs from the traditional approaches to dynamic glazing technologies and addresses the previous challenges associated with color, contrast, and cost. In this project, Tynt Technologies has partnered with a market leader in residential skylights to deliver a device that can be integrated into a window insulating glass unit (IGU) for product performance validation. The work under this project will focus on addressing technical challenges associated with both the durability and scalability requirements all while maintaining the proper cost target (<$20/sq. ft.) to meet the demands for this potentially ubiquitous technology.

Project Impact

The proposed development of dynamic windows based on RME will yield a low-cost dynamic glass technology with proven durability and better energy performance and aesthetics than the existing products. By delivering a product that costs < $20/sq. ft., we anticipate that the technology will be widely adopted in both residential and commercial buildings to reduce energy use in the United States. The project’s success will also support development of a retrofit solution to upgrade the existing window stock to reduce energy use for heating, cooling, and lighting at an affordable cost. 

Contacts

DOE Technology Manager: Marc LaFrance
Lead Performer: Tyler Hernandez, Tynt Technologies

Related Publications

Robust Large-Scale Dynamic Windows using Reversible Metal Electrodeposition

Yeang, A.L., Hernandez, T.S., et. al. Transparent, High-Charge Capacity Metal Mesh Electrode for Reversible Metal Electrodeposition Dynamic Windows with Dark-State Transmission <0.1%. Adv. Energy Mat. 12, 32 (2022).