The NAS Battery Storage Station is the largest battery back-up power station in the United States, supplying 4MW of power.  The battery system consists of 80 NGK sulfur sodium batteries, weighing 8,000 pounds each.  The building is designed to be durable, low maintenance, and prevent dust infiltration.  The decision was made to build a concrete tilt-wall structure to meet the strict criteria.  A special challenge was the remote location and lack of materials nearby.  Special additives for the concrete slowed the chemical reaction in the mixing trucks, allowing them to travel longer distances to the site.  Innovative HVAC systems were designed to maintain positive pressure to help with dust levels and to control heat build-up.  Despite the challenges, the building and sub-station were completed by Toney Construction Services on a tight schedule and under budget.  This project was awarded a gold medal for best energy project in the Texas Engineering Council’s Engineering Excellence Awards competition.  The Project was featured in the New York Times:  http://www.nytimes.com/2010/11/07/us/07ttbattery.html.

Ground Up

​NAS Battery Storage Station

Project Date:      January 2011
Location:             Presidio, Texas
Architect:            Burns & McDonnell
Contract:            
$1,700,000

Toney Construction Services, Inc.​​