Energy-efficient window attachments, such as low-emissivity (low-e) storm windows, cellular shades, and roller shades can offer customers significant energy savings. They have demonstrated energy savings in field studies and modeling work conducted by Pacific Northwest National Laboratory (PNNL) and Lawrence Berkeley National Laboratory (LBNL). In addition, studies by PNNL have shown that automating shades can save additional energy, as well as provide a demand response benefit for utilities.

Window attachments are highly visible measures that can save energy, improve comfort, and provide non-energy benefits, such as noise reduction, security, glare control, and increased home resale value. Efficiency Vermont and Focus on Energy (Wisconsin) conducted retail incentive pilot programs for low-e storm windows and have now incorporated these products into retail and DIY programs.

Access resources and information related to AERC and the work AERC is doing. Learn about AERC and window attachments in general, as well as provide background information on activities conducted to evaluate the performance of window attachments.