George Memorial Library

The George Memorial Library is currently used as the central library for the Fort Bend County Libraries system and serves on average 350,428 visitors annually. The 77,000 sq. ft. building is located on six acres, at 1001 Golfview Drive, Richmond, Texas. Built in 1986, the building includes meeting rooms, private meeting rooms, private offices, open offices with cubicles, and research areas. George Memorial Library was recipient of an energy audit and five Energy Conservation Measures (ECMs):

  • Installation of lighting occupancy sensors. Ideally suited for small applications that are considered intermittently occupied. Many of the corridors, study rooms, classrooms, enclosed offices, and open spaces within the George Memorial Library did not use occupancy sensors. This installation will result in an annual energy savings of 62,058-kWh and an annual cost savings of $6,764.32.
  • Air Handling Unit (AHU) Economizers. The most popular ECM for AHUs, the economizers use outdoor air for a first stage of free cooling when the outdoor air meets certain target conditions. This eliminates the need for mechanical cooling, which reduces energy usage.
  • Variable Fan Drives (VFD) of Cooling Tower Fans. The installation of a VFD on the cooling tower fans reduction is similar to the VFD installation on the AHUs. 20 percent decrease in speed equates to nearly a 50 percent reduction in power.
  • Condenser Water Temperature Reset. Used in parallel with the VFD to reduce power consumption, the performance of the cooling tower is increased. A lower condenser water temperature results in a higher efficiency chiller; however, it will also reduce the capacity of the chiller.
  • Premium-Efficiency Motors for Cold and Hot Water System. The installed 15-Hp NEMA Premium-Efficiency hot water motors replacements have 92.4% full load efficiency. Much better than the 87.5% full load efficiency of the two old 10-Hp pumps.

Annual Energy Cost (US Dollars)

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Total Energy Cost per Sq. Ft. (US Dollars)

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Raul Cardenas

Fort Bend County Libraries Facilities Maintenance Coordinator speaks on the success of the retrofits Architect for Life over saw as program manager.