The September 2022 RESNET HERS® Index Builder of the Month is Arizona’s Mandalay Homes. A 10-time winner of the DOE’s award for innovation and an ENERGY STAR® Partner of the Year two years in a row, Mandalay Homes has a passion for building homes that promote safety, health, comfort, style, reduced energy costs, and less environmental impact. Mandalay Homes is committed to being an industry leader in innovation and thoughtful design while utilizing cutting-edge technology to create high-performance homes. In this month’s feature, we asked Mandalay Homes Chief Technology Officer Stefan Orenda to share some insight on building HERS® homes for their customers. “Currently, we’re building about 250-300 homes a year. Every home we build is HERS® rated. An energy-efficient home is inherently a better home overall. You cannot get to a high level of efficiency without building a tighter, more comfortable, healthier home” He adds, “We’ve found the best way to market energy efficiency is to market benefits. Cost of ownership, health, durability, comfort. In the end, those are the things that matter to the buyer.” Mandalay Homes is the winner of the RESNET President’s Award of the 2022 Cross Border Challenge. The average HERS® Index Score of homes built by Mandalay Homes was 20.4 and was the lowest average HERS® Index Score for all builders who built over 50 homes in 2021. Read more of the profile here.