Hilton Columbus Downtown
Columbus, Ohio

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Photography credits: Scott Pease Photography

Lobby

Lobby Illumination is integrated into the architecture utilizing Neo-Ray linear fluorescent recessed slots. IRIS square CFL downlights mimic the rectangular shape and a linear fluroescent slot grazes the back wall. Artwork is accented with CMH PAR 30L RSA COMBOLIGHTS.

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Photography credits: Scott Pease Photography

Bridge

Custom Metalux linear fluorescents were built into the chilled beam. Lamped with a single T5 lamp, these are also dimmable and employ daylight harvesting.

Lighting Solutions Bring Aesthetics, Energy-Efficiency to Chic Hilton Columbus Downtown Hotel

Customer: Hilton

Location: Columbus, Ohio

Segment: Commercial Construction

Challenge: Utilize every bit of light generated in the most effective way, while minimizing lamp source types and still meeting budget parameters.

Solution: Eaton's Portfolio LED Downlights were utilized in a plethora of guest room entryways, bedrooms and bathrooms.

Results: The total power density is approximately 20 percent less than the energy code and the Portfolio LED downlights are providing 50 percent energy savings relative to a comparable CFL downlight. The lighting in the 532 guest rooms and suites saves 145,236 kWh and $10,167 in energy costs per year relative to the code power allowance, using the Hilton's energy rate of $0.07 per kWh.

Background:

When guests first walk into the newly constructed Hilton Columbus Downtown, the first thing they notice is the sleek, lavish and high-end atmosphere. But beyond just form, this boutique-like hotel offers function, utilizing a range of energy-efficient technologies to significantly reduce its carbon footprint.

Unveiled in the fall of 2012, the contemporary facility set out to make a statement and become an economic generator for the Greater Columbus area, driving new and larger groups downtown to the Convention Center, which is connected to the hotel by an iconic glass walkway. From the initial concept and design stages, everyone involved in the 532-guest room, 450,000-square-foot facility's construction knew that an environmentally friendly, green building was a top priority for the owning entity and its board of directors, with the goal of attaining LEED New Construction Gold Certification. What they didn't realize was just how big of a role lighting would play in the overall energy efficiency of the building.

Challenge: The Hilton Columbus Downtown team felt it was integral to be good stewards of the environment. So with LEED and Green Seal certifications mind, the overall goal of the lighting project was to utilize every bit of light generated in the most effective, efficient way, while minimizing lamp source types and still meeting budget parameters.

Solution: One of the biggest impacts in reducing the modern facility's energy consumption was the strategic use of LED options, including the 15-watt Portfolio LED downlights that were utilized in a plethora of guest room entryways, bedrooms and bathrooms. Unlike compact fluorescent fixtures, which take time to warm up and reach full brightness, the Portfolio LED downlights offer instant-on, long life and good color quality. Besides a seamless lighting experience, guests can enjoy the added benefit of dimmable capabilities, not typically found in most guest room settings.

"I spent a lot of time looking at LED downlights and testing them in our office and on-site early in the project," said Ardra Zinkon, president and director of lighting design at Tec Studio Inc. "For our desired high-end look, I wanted to obtain the appearance of a single source and the Portfolio fixture has a great lens that obscures the LED source, resulting in a smooth and even distribution. During a walk-through, everyone thought it an incandescent source.

The color consistency was also critical, as the guest rooms look out into a large atrium. The design team chose a 3000 Kelvin (K) option to match the other sources, so that when guests look up, they can see hundreds of matching lights.

Another key element of the lighting strategy was the inclusion of daylighting. From the skylights in the hotel's 100-foot tall atrium to the daylight harvesting employed by the elevated glass cross-walk, natural sunlight is maximized, resulting in unique aesthetics and energy efficiency.

Results: With an eye toward efficiency, the end result has proven to be an overwhelming success. The total power density is approximately 20 percent less than the energy code at approximately 0.8 watts per square foot. The Portfolio LED downlights provided 50 percent energy savings relative to a comparable CFL downlight. Based on the Hilton's assumptions of 3,500 annual operating hours for guest room lighting, the lighting in the 532 guest rooms and suites saves 145,236 kWh and $10,167 in energy costs per year relative to the code power allowance, using the Hilton's energy rate of $0.07 per kWh.

To learn more, view a complete case study and report done by the U.S. Department of Energy (DOE) as part of a demonstration project

LINKS:

DOE Case Study

DOE Demonstration Project Report

The Full Hilton Columbus Project Report

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Photography credits: Scott Pease Photography

Guest Room

Guest Rooms maximized energy savings within the building utilizing the Portfolio 15-watt LED downlights. Downlights are dimmable offering guests flexibility within the space.

Guest Room Design Goals

  • Energy-efficient equipment that would exceed energy codes and help meet LEED goals
  • Products that offered low operational costs with long lifetimes and low maintenance
  • A light source that was at full output immediately and did not require any warm-up time
  • A light source for which the expected lifetime was not affected by possible frequent switching
  • A light source that could be dimmed
  • A downlight luminaire in which the light appeared to come from a single light source
  • A downlight luminaire that could physically fit within the architectural constraint of a 6-inch depth
  • A light source in the downlight luminaires with excellent color consistency
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Photography credits: Scott Pease Photography

Connectivity Center

The connectivity Center continues the same lighting scheme, utilizing the Neo-Ray recessed linear slots along with a mix of adjustable RSA accent lights and floor lamps. All floor lamps in the hotel are dimmable and utilize high quality LED retrofit lamps providing significant energy savings and cost effective luminaire design.

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Photography credits: Scott Pease Photography

Pre-function Space

The Pre-function Space is lit with 32-watt CFL Portfolio downlights. Yet another deviation of the custom LED sconce from the Lobby is shown here. Recessed linear wall slots graze the walls providing vertical illumination.

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Photography credits: Scott Pease Photography

The Restaurant

The Restaurant, which is open to the Atrium, proved a challenge in bringing a sense of intimacy to the space. Halo Linea low voltage track is mounted to the grid pieces and finished to match the structure. Suspended cable track creates pinspots of light on each table.

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