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Case Studies

Livonia Marriott has saved over $51,000/year with lighting upgrades.  In public space recessed cans, the Livonia Marriott was able to decrease the wattage from a 135-watt incandescent to a 10-watt compact fluorescent in a room with a 10-foot high ceiling and to an 18-watt compact in an area with a 20-foot ceiling.

 

Hilton & Choice Hotels are buying ENERGY STAR Panasonic TV's.  Panasonic estimates that its 25" set can save $13 per year on energy costs.  ENERGY STAR TV's require only 3 watts or less when switched off and can be automatically placed into standby mode when guests fall asleep or leave the room unoccupied.

 

Sands Casino Hotel in Atlantic City is saving $680,000 per year in energy costs by replacing three, 600-ton chillers, three cooling towers, enhancing the hotel's domestic hot water system, and replacing/retrofitting approximately 10,000 lighting fixtures.

 

Starwood Hotels & Resorts Worldwide received the 2002 ENERGY STAR Hospitality Partner of the Year award from the EPA.  The company's environmental achievements include investing over $8 million in energy conservation projects in 2001; reducing energy use by over 167 million Btu's and water use by over 135 million gallons; installing over 30 ozone laundry treatment systems that have significantly reduced use of hot water and chemicals; installing two fuel cells in hotels in New Jersey; and rolling out networked guestroom energy management systems to reduce energy use while the rooms are unoccupied.

 

Admiral Fell Inn in Baltimore is listed by the National Trust for Historic Preservation.  The 38-room inn was originally built in 1860. The complex of buildings now totaling 65,000 sq. ft. underwent a major renovation and expansion that was completed in 1997. Beyond the historic facades, and carefully concealed within the structure, is a high efficiency heating, ventilating and air conditioning system. The system includes multiple high efficiency technologies including 1,200 ton-hours of ice thermal storage, two cooling towers, low temperature water and air distribution, smart guest room and computerized control systems, variable speed drives for all pumping and air distribution systems, high efficiency boilers and water heaters, efficient indoor air quality management systems, as well as high efficiency electrical system design.

 

Hilton Hotels' successful energy management strategy made it the 2001 ENERGY STAR Award Winner. Hilton established specific energy goals, including a 5% reduction in energy use, a 5% reduction in energy costs, and a 5% increase in score on the ENERGY STAR benchmarking tool. Hilton's corporate engineering department relies on quarterly building inspections, rigorous preventative maintenance, and a purchasing policy that includes ENERGY STAR labeled products. Each quarter, corporate benchmarking reports comparing a variety of energy metrics across Hilton properties are sent to individual hotel managers.  Hilton has used the following successfully: 1) CFL's in guestrooms, bathrooms, foyers, corridors, and elevators, 2) photo sensors on exterior and landscape lighting, 3) maintenance program to include group re-lamping, 4) roof and wall insulation and/or reflective coverings, and 5) ENERGY STAR electronic products.  Hilton continually evaluates new technologies through pilot projects. One hotel is saving almost $270,000 per year  after the installation of digital thermostats that monitor room occupancy and automatically adjust the temperature when occupants enter (or exit) a room.  

 

Columbus Hospitality Group has achieved annual energy savings of 480,000 kWh and more than $30,000.   Some examples of their energy efficiency improvements include: 1) CFL's, 2) high efficiency air conditioning units, 3) high efficiency pumps replaced most water circulation pumps, 4) occupancy sensors for lights and HVAC units in offices and unoccupied guest rooms, 5) water saving showerheads, toilets, and sinks, and 6) energy efficient TV's, VCR's, fax and copy machines.

 

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