naval hospital rota

Naval Hospital Rota

Retrocommissioning Plan and Energy Assessment

Location: Rota, Spain
Owner: U.S. Navy

SEA was contracted to perform a Level II energy survey and pre-retrocommissioning at the Naval Station Rota Hospital funding by the Navy’s Bureau of Medicine. The hospital is a 120,810 square foot medical facility which is separated into several uses such as: emergency services, clinics, operating rooms, and inpatient care.

Over the course of two weeks onsite, SEA evaluated the chiller and boiler plants, DDC system air handling units, VAV boxes, lighting, building envelope, and plumbing fixtures.  The building features three 95 ton chillers and two steam boilers which provided CHW and HHW/steam to the building’s air handling equipment. 18 constant and variable volume air handlers provide conditioned air to the building. Site visit evaluations included: thermal imaging of steam piping, verifying DDC functionality versus actual operations; data logging of space temperature, relative humidity, and lighting. SEA personnel also met with facility maintenance.

After the site visit concluded, SEA was tasked with developing energy conservation measures (ECMs), studying utility bills, creating a detailed buildgn energy model using eQuest software, writing a retrocommissioning plan, creating an Energy Star profile, and summarizing deficiencies.

The hospital had a very high energy utilization index 174 kBtu/gsf/yr) and energy cost index ($9.57/gsf/yr).

Technologies evaluated:

  • LED lighting
  • Co-generation
  • Solar DHW
  • Steam Plant
  • Chiller Plant

Unique characteristics:

  • 24/7 operation
  • sophisticated controls system
  • unique temperature and humidity requirements
  • complex boiler and chiller plants
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