San Diego State, Aztec Student Union Measurement & Verification

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  • Verified energy use for benchmarking against like buildings

  • Project Overview

    After we helped design SDSU’s new Aztec Student Union, our team provided measurement and verification services to ensure the building was operating as designed with the specific objective to help the project qualify for the Energy & Atmosphere Credit 5 –Measurement and Verification LEED credit. Our models were also meant to assist the building operators to identify potential issues through the building life-cycle.

  • Solution

    We collected trend data from the building’s first year of operation which we used to calibrate an as-built energy model for the building. We then compared the model to a baseline energy model to determine how the building was performing. Additionally, we used the as-built model to estimate the energy consumption of a similar building designed with minimum code compliant systems, known as the baseline building. Compared to the baseline building, the Aztec Student Center consumed approximately 15% less energy annually. Coupled with campus thermal storage and renewable generation, this correlated to an energy cost savings of over 50% when compared to similar buildings. Per a DOE database of EUIs, the building is in the top quartile for energy performance among similar building types.

  • Annual Energy Savings

    Electrical: 27.8 kBtu/SF-Year

    Heating: 10.3 kBtu/SF-Year

    Cooling: 29.3 kBtu/SF-Year

    Process: 7.2 kBtu/SF-Year

    Total: 74.6 kBtu/SF-Year