Environmental & Energy Leader reports that Nagle Energy Solutions’ (NES’) patent-pending garage-ventilation control system is cutting by more than 1.2 million kilowatt-hours (kWh) a year the baseline of consumable energy by a new and sizeable mechanical ventilation system at the City of San Francisco’s Japan Center Garage. By doing so, the NES system provides a recurring operational-cost savings in excess of $250,000 per year — not including future utility rate increases.