Case Study 03:ASDA Stores

In 2005 the Wal-Mart CEO set a number of Sustainability Goals through an address called ‘Twenty First Century Leadership’, within these challenges there was an aspiration make Carbon Reductions. Our challenge within Asda was to reduce Carbon Emissions on the existing estate by 20% for 2012. Through an extensive retro-fit programme across our estate we exceeded our target by delivering a 28% reduction versus our 2005 baseline. The Carbon reductions have been achieved by introducing the measures below which are a selection of technologies from our retro-fit programme that have been implemented on projects ranging from specific Energy Reduction Schemes, Asset Renewals, Remodels and Extensions.

Retro-fit measures introduced across our estate:

 

  • Upgrade of Building Management Systems with energy efficient algorithms, set points and time schedules
  • Introduction of a central Energy Management Bureau that is connected to all stores so we can proactively manage our energy usage
  • Introduction of Submeters so we can accurately measure success and understand the detailed usage profiles within our stores
  • An Energy Dashboard in store to enable colleagues to understand where opportunities are
  • Invertor control for Fans and AHU's
  • PIR's for occupation control of Lighting, Air Conditioning, Ventilation and Water
  • Low flush WC's
  • T5 lighting with built in PIR's for occupancy and dimming control
  • Low energy Thermo Tubes within refrigeration cases
  • LED lighting within cold rooms
  • Cold room lights activated when door opens
  • Alarms on Cold room doors
  • Voltage optimisation
  • Air curtains that use de-stratification to recover heat
  • Weir risers on open refrigeration cases to reduce cold air falling from cases
  • Energy efficient hand driers
  • Heat recovery from refrigeration packs to HVAC
  • Trim heaters to refrigeration doors
  • Energy efficient refrigeration pack controllers
  • Night blinds to refrigeration cases

 

The Asda Store in Cambridge has already had a number of Carbon Reduction measures installed and will considered for further Energy reducing technologies when the store undergoes a revamp. Some of the Carbon Reduction measures already installed at Asda Cambridge are listed below:

 

  • Upgrade of Building Management Systems with energy efficiency algorithms, setpoints and time schedules
  • Introduction of a central Energy Management Bureau that is connected to all stores so we can proactively manage our energy usage
  • Introduction of Submeters so we can accurately measure success and understand the detailed usage profiles within our stores
  • An Energy Dashboard in store to enable colleagues to understand where opportunities are
  • PIR's for occupation control of Lighting, Air Conditioning, Ventilation and water
  • T5 Lighting with build in PIR's for occupancy and dimming control
  • Energy efficient hand Driers
  • Night Blinds to Refrigeration Cases
  • LED lighting within Refrigeration Cases
  • LED lighting within cold rooms
  • Cold room lights activated when door opens

The benefits achieved by the introduction of the technologies and review of operations account for a 30% reduction in Carbon when measuring our 2012 usage versus our 2005 usage.


 

Who's Involved:

Project Manager: Sigma

Quantity Surveyor: Mcleod and Aitkin

Financial: Asda

Maintenance: City Facilities Management

Refrigeration: CBES

Energy Bureau Management and BMS:Building Automation Solutions