Walmart selects Cree LEDs for initial 650-store deployment
Durham, N.C. Cree has been selected to provide energy-efficient LED lighting to Walmart for new stores and renovations.
The discounter plans to install Cree LRP-38 LED light bulbs in 650 stores during the first year, replacing ceramic metal halide in the produce and electronics departments. The PAR38 style LED lamp was selected for its energy-efficiency, long lifetime, controlled beam and high color-rendition. Designed to last 50,000 hours, the lamp consumes 82% less energy than the 70-watt ceramic metal halide bulbs it replaces and can last more than five years in a 24/7 operating environment.
Cree`s LR6 recessed LED downlights are being used in new construction applications.
McDonald’s hoping for LEED Gold for Cary, N.C., location
New York City McDonald’s is hoping to be awarded LEED (Leadership in Energy and Environmental Design) Gold certification for its unit in Cary, N.C.
The restaurant, which opened in July, replaced a 25-year-old McDonald’s on the same spot. The original building was torn down and rebuilt (with materials that feature a high recycled content) to achieve LEED certification from the U.S. Green Building Council.
“My efforts in building this store are two fold: to be economically sound with energy-efficient methods and, at the same time, to provide a modern space for the enjoyment of customers, “ said Rica Richards, McDonald’s franchise owner/operator.
Similar to McDonald’s other green restaurant projects, the Cary location will serve as learning lab to provide a better understanding of green technologies and how they could be applied to new and existing restaurant designs. It features a daylighting system that utilizes tubular daylighting devices (from Solatube, Vista, Calif.), and is lit 97% with LED lights (from Cree, Durham, N.C.). The LEDs are featured throughout the space, including dining areas, kitchen, and restrooms as well as the drive-thru.
The Cary McDonald’s has a fully automated, intelligent lighting-control system that combines light from the high-efficiency LEDs and daylighting from the Solatube skylights with a photo sensor to maintain the proper light levels on work surfaces.
Compared with the standard lighting packages, the restaurant consumes 78% less electricity for lighting.
The building also uses water conservation measures such as low-flow toilets and landscaping consisting of native and adaptive plants and trees requiring little or no irrigation. Richards expects this will allow the restaurant to save 550,000 gallons of water annually.
In other green measures, the table and wall decor incorporate rapidly renewable materials such as sunflower seed board, wheat board, bamboo and kirei board. An educational touch screen in the dining room is designed to inform guests about the building and its environmental benefits.
DOE releases data on how to achieve 50% energy savings in stores and other commercial buildings
Washington, D.C. The U.S. Department of Energy and the DOE national laboratories have released technical support documents that suggest how to achieve 50% energy savings in four key commercial building sectors: general merchandise, grocery store, lodging, and medium office buildings.
The initiative is taking place less than two years after launching the Net-Zero Energy Commercial Building Initiative, which aims to achieve marketable net-zero energy commercial buildings by 2025.
The technical support documents were created by the DOE national laboratories under the direction of DOE’s Building Technologies Program. They describe the assumptions, methodologies, and analyses used to reach 50% energy savings over ASHRAE/IESNA Standard 90.1-2004 The technical support documents demonstrate that higher levels of energy performance can be achieved in the commercial building industry. These reports are often the basis for Advanced Energy Design Guides –“how to” guides that target architects, engineers, and other design practitioners.
The recommendations for general merchandise stores, include:
- Reduce lighting power density by 47%, and install occupancy sensors in the active storage, mechanical room, restroom, and office zones;
- Add a vestibule to the front entrance to reduce infiltration;
- Equip rooftop HVAC units with high-efficiency fans;
- Install daylighting sensors tuned to a 46.5 fc (500 lux) set point;
- Reduce south facade window-to-wall ratio by 50%;
- Replace baseline exterior walls with better insulated constructions; and
- Reduce plug loads to 10% of peak during off-hours in high plug load stores.