Did you recently replace the windows in your home? If so, you can help advance research that could reduce the cost of replacement windows.

The Clean Energy Manufacturing Analysis Center at the National Renewable Energy Laboratory is studying the costs of installing energy-efficient windows in homes€”from the cost of the windows themselves to costs for installation and labor€” and were collecting as much data as possible. We are searching for copies of actual invoices from energy-efficient window installations.

We are particularly interested in receiving invoices that break out the cost of the windows from the installation costs, but invoices that show total costs will also be helpful. Our team is only interested in cost information and wants to ensure your privacy is respected; please black out any personal information and submit your invoice to Catherine Burke. ].

This research is being done as part of the U.S. Department of Energy Clean Energy Manufacturing Initiative for the Building Technologies Office. More information about CEMAC can be found at http://www.manufacturingcleanenergy..org/

Please contact Maggie Mann ] with any questions.