Walmart Experimental Store Performance Stories: Preprint

Research output: Contribution to conferencePaper


Walmart opened two experimental stores--one in Colorado and one in Texas--in 2005 to serve as test beds for several advanced building systems. Each embodied more than 50 experiments covering materials, water systems, energy systems, and renewable energy production. Walmart worked for three years with the National Renewable Energy Laboratory for the Colorado Store and Oak Ridge National Laboratoryfor the Texas store to monitor, analyze, and report on their performance. HVAC experiments included waste oil boilers, a microturbine/absorption chiller combined heat and power system, evaporative cooling, and a transpired solar collector. The refrigeration systems integrated a medium-temperature secondary loop, evaporatively cooled condenser, doors on medium-temperature cases, andlight-emitting diodes on cases. Experiments in the lighting systems included a redesigned roof for clerestory daylighting and T-5 fluorescent lamps. Three photovoltaic systems for a total of 135 kW and a 50-kW wind turbine are also included. The energy system performance was compared to the measured performance of a prototypical Walmart store and to other benchmarks.
Original languageAmerican English
Number of pages14
StatePublished - 2010
EventACEEE Summer Study - Pacific Grove, California
Duration: 15 Aug 201020 Aug 2010


ConferenceACEEE Summer Study
CityPacific Grove, California

NREL Publication Number

  • NREL/CP-550-48295


  • advanced buildings
  • experimental store
  • test bed
  • Walmart


Dive into the research topics of 'Walmart Experimental Store Performance Stories: Preprint'. Together they form a unique fingerprint.

Cite this