Joint Base San Antonio, TX

Assuring Energy Security at the Largest Base Organization in the Department of Defense

Summary

The Defense Logistics Agency implemented a self-funding energy security and resiliency infrastructure project at Joint Base San Antonio (JBSA) in Texas. The project integrates on-site renewable energy generation, battery energy storage, and microgrid technologies allowing for seamless transition to backup power in order to maintain operation of critical loads.

24%

Annual Energy Consumption Reduction

$8,700,000

Annual Energy Savings

14.7 M

Square Feet Facility Size

$133,500,000

Task Order Size

Customer Benefits

More than 14.7 million square feet of buildings will receive energy and water conservation upgrades designed to reduce energy consumption by 24 percent annually. JBSA will leverage their efficiency savings to build an innovative microgrid in support of critical energy loads for mission assurance. The installation of new onsite energy systems will offset electricity purchases from the grid and will provide energy security and resiliency.

  • Diverse portfolio of distributed energy assets
  • Reduced energy consumption
  • Automated Islanding from commercial power grid during periods of interruption
  • Critical building resiliency during utility outage or grid disruption
  • Integrated operation of renewable energy with battery generation and backup capabilities for grid-tie peak shaving and off-grid islanding of mission critical loads

Solution

Ameresco will provide energy efficiency and reliability upgrades to 900 buildings across five military installations and will build a microgrid integrating 18.5 megawatts (MW) of new onsite energy photovoltaic assets, 4 MW of gas fired backup generation and 4 MW/8 MWh of battery energy storage, and 585 kW of combined heat and power to support critical energy loads for mission assurance. This $133.5 million task order leverages $2.7 million of Facilities Sustainment Restoration and Modernization (FSRM) funds as a direct investment in the project.

  • HVAC management control systems
  • Over 2 million galls of thermal energy storage
  • Building envelope improvements
  • Over 140,000 LED lighting systems
  • 11.7 MW ground mount solar
  • Over 5 MW of roof-mount solar
  • Ongoing operations and maintenance
  • New combined heat and power system

Free Virtual Microgrid Tour

Virtual Microgrid Tour: Mission Critical Microgrid

Join us for a virtual tour of a base that implemented energy efficiency and reliability upgrades, then leveraged these comprehensive energy savings to build an innovative microgrid and distributed generation architecture to provide energy assurance in support of mission critical operations.

Learn how the Defense Logistics Agency Energy and the United States Air Force is implementing an energy security and resiliency infrastructure project at Joint Base San Antonio. Take the tour today →

Preview image for virutal microgrid tour shows an aerial view of a cityscape at sunset, people walking toward a large outdoor fuel tank and two people examining a battery enclosure