Recurve. The Recurve Software suite is designed to help home performance contractors more accurately manage home energy audits and retrofits. The software can generate reports and estimates that allow contractors to present results directly to homeowners and streamline the sales process for upgrade projects. Other features include a back-end database that accounts for climate zones, residential building types, and construction characteristics; built-in modeling for energy simulations; and error-checking and progress monitoring. 877.594.5391.