Analysis of window energy savings in commercial buildings in the Pacific Northwest

In September 2002, NEEA launched the Commercial Windows Initiative (CWI) with the goal of increasing sales of already efficient commercial window products and encouraging the design, manufacture and sale of new, more efficient products. CWI had an explicit goal of increasing market share to 50% from an assumed baseline of 12% for the specific market category of factory-built products for punched openings. 

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