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Marye Anne Fox Science Teaching Laboratory
Marye Anne Fox Science Teaching Laboratory
Marye Anne Fox Building Entrance
Marye Anne Fox Building Entrance

Showcase Project: Marye Anne Fox Science Teaching Laboratory

Sector Type

State Government

Location

Raleigh, North Carolina

Project Size

70,700 Square Feet

Financial Overview

Project Cost: $103,000

Annual Energy Use

(Source EUI)
Baseline (2013)
871 kBtu/sq. ft.
Actual (2015)
767 kBtu/sq. ft.

Energy Savings:

12%

Annual Energy Cost

Baseline (2013)
$607,000
Actual (2015)
$530,000

Cost Savings:

$77,000
Background

The Marye Anne Fox Science Teaching Laboratory at North Carolina State University (NC State) provides teaching laboratory space for chemistry and physics students. The NC State recommissioning team strategically selected the building, which contains digital HVAC controls, for an energy efficiency upgrade after documenting consistent above-average energy use.  The facility was built in 2004 and underwent repairs from April to December 2013. The project realized actual energy savings of 12 percent and cost savings of $77,000, falling within the typical expected savings for retrocommissioning projects of up to 15 percent and demonstrating the benefits for newly constructed facilities.

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The Fox Laboratory was the first building at NC State to be funded through a $3.1 billion University and Community College Bond Referendum that was approved by North Carolina's voters in November 2000.  The building is named for Dr. Marye Anne Fox, the first woman to serve as Chancellor of NC State between 1998 and 2004.

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Solutions

The building was selected for retrocommissioning which involves a thorough evaluation and adjustment of the settings, controls, components and design of the building based on operations. NC State’s audit of the facility identified malfunctioning equipment, temperature control issues, and systemic operational problems among other opportunities for energy efficiency improvements.

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The recommissioning team evaluated the laboratory HVAC control systems to assess whether they were consuming large amounts of extra energy despite appearing to operate well.  Since the facility uses district heating and cooling, the team reviewed pump operating sequences and infrastructure to maximize the efficiencies of district thermal plants.

Energy efficiency measures implemented and energy savings achieved include:

  • Repair of failed lab HVAC control equipment, 3%
  • Minimization of air changes where feasible and reorganization of building operating schedules, 3%
  • Replacement of faulty chilled water and hot water pumping controls and reprogramming of pump control sequences, 2%
  • Repair and reprogramming of non-laboratory variable air volume (VAV) controls, 1%
  • Repair and reprogramming of air handler preheat and chilled water controls, 1%
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Other Benefits

The Fox Laboratory was the first building at NC State to be funded through a $3.1 billion University and Community College Bond Referendum that was approved by North Carolina's voters in November 2000. Fox is also one of the first buildings which piloted the in-house recommissioning efforts at NC State.  As a result of its success, the program now is fully funded, which includes four full time staff members.  Since the inception of the program in 2012, seven buildings have been completed to date.

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