An aerial view of Day Creek Villas, a zero-net-energy senior housing development in Rancho Cucamonga. The question is what the path looks like.” Everett Reid, assistant superintendent, views high-efficiency natural gas boilers at National Community Renaissance’s Day Creek Villas, a zero-net-energy senior housing development in Rancho Cucamonga. Building industry groups told state officials there’s usually no “significant difference” in cost …
