Electrochromic Glazing

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Lucas Ewing – Blog Post Week #12

In the last several years, Sage Technologies has developed a state-of-the-art electrochromic glazing that is revolutionizing how windows should (and most likely will) work.  Their product SageGlass is greatly incentivized for use by the US Department of Energy for its monumental leaps in performance.  Electrochromic glazing is a form of dynamic glazing that adjusts to different daylighting levels.  This type of glazing, with a flux in electrical voltage applied to it, will adjust its tint of glass while still maximizing its view.  This tinting property can lower its Solar Heat Gain Coefficient down to 0.1, which is a significantly lower SHGC than the standard dual pane window, which at code requires a maximum near 0.4 in cooler climates.

I believe this technology will completely revolutionize the way we design buildings. Now that we have glazing that can be adjusted by daylight sensors, we could start applying this to entire facades of buildings, especially in warmer environments where the heat gain can be drastically decreased.  One thing I wonder about is the actual life of these glazing systems? Being that they are quite young technologies, I could see that these may not end up lasting as long as the typical window.  In that case, there would have to be a balance between upfront costs and energy costs of each to see if it is essentially worth while to incorporate these into new structures or retrofit them into existing structures.

Source: https://www.sageglass.com

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