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Hutchinson, Kan.
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After receiving over 80 inquiries, Siemens, the Germany-based industrial giant, selected Gray to provide design-build services for its new 289,842 s.f. wind energy nacelle production facility in Hutchinson, Kan. Nacelles are 90-ton oblong steel structures perched atop wind turbine towers that house generators, gears and electrical systems.

Project Facts

  • Manufacturing plant measures close to five football fields
  • Structure designed for heavy loads, allowing movement of nacelles throughout building
  • Project received an Award of Merit from Engineering News-Record  in 2011
  • Project received a National Design-Build Award in 2012
  • Facility achieved LEED® Gold certification
  • Siemens' first LEED® Gold certified production facility in the U.S.
  • First LEED® Gold new construction/industrial site in Kansas
  • Building features:
    • Teqton, a jointless, maintenance-free floor slab, the first of its kind in the U.S.
    • Sage Glass, electronically tintable glass

Elements of sustainable design incorporated into the facility include:

Site Impact

  • High ratio of open space to promote biodiversity
  • Reduced heat-island effects with high-Solar Reflective Index (SRI) roofing and paving materials
  • Control of water runoff by storm water management strategies
  • Eliminated irrigation by use of native plants and vegetation

Operational Impact

  • Reduced interior and exterior light pollution
  • 28% savings in energy cost
  • Enhanced refrigerant management
  • Minimum of 50% use of Forest Stewardship Council (FSC)-certified wood
  • Permanent outdoor air delivery monitoring system
  • 30% minimum increase in breathing zone outdoor air ventilation rates
  • Utilized indoor air quality management plans
  • Minimized indoor chemical and pollutant sources
  • Innovative design by use of low-mercury lights
  • Commissioning strategies for efficient building systems
  • Verification technique to validate actual energy savings
  • Daylight & views for 75% of occupied spaces
  • Reduced water usage with low-flow plumbing fixtures

Employee Impact

  • Preferential parking for fuel-efficient vehicles
  • Preferred parking for carpools/vanpools
  • Bicycle racks
  • Changing and showering facilities
  • Individual lighting system control for 90% of building occupants
  • Thermal comfort survey after occupancy for any corrections needed

Services Provided by Gray:

  • Architecture
  • Building Systems Analysis and Design
  • Building Information Modeling (BIM)
  • Project Visualization
  • Civil Engineering
  • MEP Engineering
  • Structural Engineering
  • Construction Management
  • LEED® Administration
  • LEED® Certification
  • LEED® Design
  • LEED® Commissioning
  • Building Commissioning

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