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Ambulatory Care Clinic
459 Patterson Road Building 30
Honolulu, HI 96819
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The Ambulatory Care Clinic is part of the Spark M. Matsunaga VA Medical Center/VA Pacific Islands Health Care System organization that encompasses the Hawaiian Islands, American Samoa, and Guam. The Ambulatory Care Clinic was designed to create a positive and inviting environment for providing services to veteran patients located on the Hawaiian Islands, Guam, American Samoa, and other regions throughout the South Pacific. Ambulatory Care Clinic is located on the grounds of the Tripler Army Medical Center (TAMC) campus in Honolulu, Hawaii, and opened in April 2000. The Ambulatory Care Clinic is an outpatient facility and provides Primary Care, Specialty Care, Mental Health, Laboratory, Radiology, Dental, and Outpatient Pharmacy services while incorporating a variety of energy-efficient technologies.

The Ambulatory Care Clinic was designed to make use of day lighting in perimeter hallways and the grand atrium/lobby area. The day lighting units create a calm and serene atmosphere. Two 250-ton water-cooled high efficiency centrifugal chillers supply the facility's ventilation and air-conditioning needs. A reciprocating heat pump provides significant energy savings in heating domestic water by recovering heat from the return chilled water system. The facility utilizes electronic ballasts, T-8 lamps, compact fluorescent lamps, LED exit signs, water saving fixtures, electronic sensing faucets, and variable frequency drives on the main air handlers and chilled water system pumps.

In addition, an energy management system provides maintenance staff the ability to monitor and control temperatures, flows, and pressure levels for all major HVAC components in the Ambulatory Care Clinic, as well as two other Department of Veterans Affairs (VA) buildings on campus; the Center for Aging (60-bed long-term care facility) and E Wing administration building. Computer graphics allow quick access to all equipment layouts and floor zones. Installation of occupancy sensors was the most recent energy-efficient method implemented. The benefits of the energy-efficient technologies installed resulted in a rebate amount of $76,600 from the local electrical utility company, Hawaiian Electric Company, Inc. Energy calculations determined that approximately $109,000 in electricity costs would be saved annually with a payback of seven years.

The Ambulatory Care Clinic received the "Energy Project of the Year 2000" in September 2000 from Hawaiian Electric Company, Inc. due to the installation of energy-efficient components, significant rebates and projected energy savings. In addition, the facility received the American Institute of Architects (A.I.A.) Honolulu Chapter - Design Award of Excellence. In September 2002, the organization as a whole received the VA Robert W. Carey Quality Award in the Unified Health Care and Benefits category. The Ambulatory Care Clinic received ENERGY STAR labels in 2004 and 2005 under the "Medical Office building" category with an energy performance rating of 76. In April 2005, the Ambulatory Care Clinic received the 2005 Department of Veterans Affairs (VA) Environmental Excellence Award for Sustainable Design/Green Buildings. In February 2007, a reflective roof restoration coating was applied to reduce the heat gain of the building, thus reducing energy costs and improving the energy performance rating of the building.


The dedication ceremony for the Spark M. Matsunaga VA Medical Center Ambulatory Care Clinic was held on May 31, 2000.

2000 Energy Project of the Year from Hawaiian Electric Company

2005 Environmental Excellence Award for Sustainable Design/Green Buildings from the Department of Veterans Affairs (VA)


"A creative balance was achieved in the design and construction of this facility. Energy-efficient technologies, combined with day lighting techniques have made an impression on veterans, their families, and visitors as a place of healing and care. Staff morale benefited tremendously due to adequate lighting and space management."
-- Worcester P. Bong, P.E., Chief, Maintenance & Operations, VA Pacific Islands Health Care System

Please note: Narrative information in this profile has been provided by VA Pacific Islands Health Care System or a representative of this facility. Other building information was verified and submitted to EPA at the time of application. Building energy performance, operating characteristics, and ownership/management may be subject to change over time.

Federal Building

Building Owner:*
VA Pacific Islands Health Care System

Property Manager:*

Year(s) Labeled (Rating):
2004 (76)
2005 (76)
2007 (80)

Facility Type: Medical Office

Total Floorspace: 92371 sf

Year Constructed: 2000

Contract Type: Multiple Contractor Contracts
Financing Type: Internal Capital

Technologies Used:
   Stage 1-Recommissioning
   Stage 2-Lighting
   Stage 3-Load Reductions
   Stage 4-Fan Systems
   Stage 5-Heating and Cooling Plant
   Other Technologies/Strategies