SAGE Electrochromics, Inc., a wholly owned subsidiary of Saint-Gobain, is a specialized window glass developer based in Faribault, Minnesota.

"[1] The company was founded in 1989 by former CEO John Van Dine as Sun Active Glass Electrochromics, Inc. (SAGE) in a Valley Cottage, New York, laboratory.

[7] In March 2010, SAGE announced[8] more than $100 million in DOE funding and Internal Revenue Service (IRS) tax credits to build a new facility in Faribault, Minnesota, to mass-produce SageGlass IGUs.

Shortly thereafter, the company announced a new product that combines electrochromic technology with low U-factor triple-pane window glass construction.

[16][14][17] In March 2010, U.S. Energy Secretary Steven Chu revealed that the DOE had provisionally approved a $72 million loan guarantee for Sage.

[18] The loan guarantee and tax credits are to be used to help SAGE establish a new facility to expand production and lower costs of its electrochromic glass, with the goal to make buildings more energy efficient and create new green manufacturing and construction jobs.

The facility will allow production of larger sheets of dynamic glass at high volumes, making it feasible for widespread building applications.