Organizations recognized for energy-efficient rooftop unit upgrades
Six organizations have been recognized by the U.S. Department of Energy for replacing and upgrading rooftop units as part of the Better Buildings Alliance Rooftop Unit Campaign (ARC), according to a release from the agency.
The organizations in a single year collectively have saved an estimated one trillion British thermal units (Btu) or more than $11 million on utility costs with efficient rooftop unit (RTU) replacements, retrofits and quality management and operations. Since 2013, 250 ARC partners have upgraded 59,500 RTUs for a total energy savings of 10 trillion Btus, or $93 million in cost savings.
A building's cooling and ventilating energy consumption can be reduced between 20 and 50 percent when aging equipment is replaced with high-efficiency units or retrofitted with advanced controls, the Energy Department says. In fact, a building owner can save as much as $3,700 per RTU, the equivalent of $6.7 billion and 670 trillion Btu annually.
The following organizations were recognized this year for their innovative RTU management approaches that led to significant energy savings in commercial buildings:
- Arby's Restaurant Group Inc. made 238 high-efficiency RTU replacements across 900 stores, resulting in an estimated savings of 1.4 million kWh, worth $140,000 annually.
- Giant Tiger Stores Limited had the largest efficiency gain for a single building RTU replacement project, a 63 percent installed efficiency gain with 41 percent (30 Tons) capacity reduction.
- Southern California Edison upgraded 4,679 high-efficiency RTUs and 400 advanced RTU control retrofits, resulting in an estimated savings of 31 million kWh, worth $4.7 million annually.
- Target Corp. upgraded 532 RTUs, resulting in an estimated savings of 10 million KWh, worth $1 million annually.
- Walmart Stores Inc. upgraded 5,919 RTUs — the highest number of high-efficiency RTU installations — resulting in an estimated savings of 50 million kWh, worth $5 million annually.
- Whole Foods Market retrofitted 839 advanced control retrofits, resulting in an estimated savings of 7.6 million kWh, worth $747,000 annually. Whole Foods had the highest number of RTU installations that meet and exceed RTU challenge specification, 12 highest efficiency RTUs, with an estimated savings of 120,000 kWh, worth $12,000 annually.
The Better Buildings Alliance technology campaigns, like ARC, involve public and private sector organizations across the country working together to share and replicate positive gains in energy efficiency and catalyze change and investment in energy efficiency. Through Better Buildings, the Energy Department is working to make commercial, public, industrial, and residential buildings 20 percent more energy efficient over the next decade.
Topics: Architectural Firms, Associations / Organizations, Building Owners and Managers, Data Centers - Mission Critical Information Centers, Energy Saving Products, Exteriors, Great Commercial Buildings, HVAC - Heating, Cooling, and Ventilation, Indoor Air Quality (IAQ), Interiors, Maintenance, Retail, Roofing, Sustainable Communities, Urban Planning and Design, Ventilation
Companies: U.S. Department of Energy