Bullet Points: Wal-Mart Cuts Energy 30%--What Can We Learn From Them?
WAL-MART CUTS ENERGY 30% — WHAT CAN WE LEARN FROM THEM?
Charles Zimmerman (VP, Prototype & New Format Development, Wal-Mart)
- Wal-Mart is committed to building sustainable facilities
- Wal-Mart will make a 20% energy/greenhouse gas reduction in existing stores within the next 7 years
- The company has approximately 6,500 operations worldwide (3,900 in the US and 2,600 internationally)
- The company looked at ways it was using energy and introduced some of the following technological changes:
- Daylight harvesting
- Cool roofing; heat reclaim
- High efficiency heating, ventilation, and air conditioning (HVAC)
- Centralized Enterprise Management Server (EMS)/monitoring
- Active de-humidification
- Exterior Light Emitting Diode (LED) signage
- Future Wal-Mart initiatives include the following:
- Interior LED lighting
- Additional speed fans/motors in HVAC systems
- Variable speed fans/motors and floating pressures (refrigeration)
- Emerging HVAC technologies
- Emerging refrigeration technologies (CO2 secondary loop)
- Rainwater harvesting
- Domestic water conservation
- Construction debris recycling
- Increase in recycled products
- Teaching competitors about Wal-Mart’s success in energy
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