The Navy Federal Credit Union has embraced green architecture, but not for any of the usual reasons.
"You've been asking for data," Ebbesen says to me. "Well, we definitely have energy savings: we've had one study that said 25 percent and another that said 40 percent. We pay a lot of attention to the energy model because we want to be efficient, because that leads to less pollution. But that's not where the savings are. The savings are all related to productivity." Navy Federal's wealth (they don't exactly have trouble getting long-term financing) means that Ebbesen could swallow higher up-front costs if it means a longer life span-and indeed this building is designed for a 40-year cycle (generous for its type). But to be conservative he sticks to 30 years for the following calculation: over that time 92 percent of the organ-ization's costs goes to employees, 6 percent go to maintenance and operation, and a mere 2 percent are represented by the initial construction investment. "When I show that on a slide," Ebbesen says, "it's kind of like, 'Duh, now are you paying attention?'"
With their new environmentally friendly buildings, Navy Federal has reduced their annual employee turnover rate from 60% to 17%.