Despite a continued tight supply and tight credit, more growth is expected.

DOE is interested in current state-of-the-art of savings prediction methods, forthcoming advances that could improve the accuracy and/or reduce the costs of prediction methods, and the potential market implications of improved savings prediction methods.

Homeowners that build a rain garden, or a green roof, use permeable pavement or a dry well, can be reimbursed for around 75% of the cost.