Tag Archives: PNNL

Research Proves a Two-Decade Payback for Triple-Pane Windows

It takes two decades or more for triple-pane windows to pay off financially based on utility-bill savings, according to a report by energy efficiency experts at the Department of Energy’s Pacific Northwest National Laboratory. These findings were presented earlier in December at by PNNL research engineer Sarah Widder at the Buildings XII Conference in Clearwater Beach, Fla. The meeting was sponsored by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). The report by Widder and senior staff engineer Graham Parker is based on … Continue reading

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