torcellini macey case study

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    Case StudiesPaul A. Torcellini, Ph.D., P.E.

    Principal Engineer National Renewable Energy Laboratory

     Associate Professor Eastern Connecticut State University

    Philip Macey, AIA

    National DirectorCollaboration

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    Credit: Frank Ruk

    NREL Office Building in Golden, C(Research Support Facility – RS

     – 360,000 ft2

     – 34 kBtu/ft2

    including datacenter 

     – 25 kBtu/ft2

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    Measured Versus Modeled Monthly and Cumula

    0.0

    0.5

    1.0

    1.5

    2.0

    2.5

    3.0

    3.5

    4.0

    4.5

       M  o   d  e   l

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       P   V

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    October 2010

    November 2010

    December 2010

    January2011

    February2011

    March2011

     April2011

    May2011

    June2011

    July2011

     August2011

    S

       M  o  n   t

       h   l  y   E   U   I   (   k   B   t  u   /   f   t   2   )

    PV

    Data Center 

    MechanicalSystemsPlug Loads

    Lighting

    Heating

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    NREL PIX 17986

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    NREL PIX 17411, 17

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    NREL PIX 18780

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    TD Bank Branch Office (Florida

    • 2015Consumption 104,487 kWh

    PV Generation 106,100 kWh

    • 2014Consumption 102,485 kWh

    PV Generation 106,953 kWh

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    K-12 Schools

    Site EU

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    Photo courtesy Kenton County

    Turkey Foot Middle School• Replacement School

    • Twice the size

    • Old EUI: 72 kBtu/ft2

    • New EUI: 25 kBtu/ft2

    • 443 kW of PV

    • Construction: $200/ft2 inc. PV• 59.4% energy cost savings