Energy Mapping and Analysis Procedures (EMAPS) as Building Diagnostics

    Research output: NRELTechnical Report


    Energy Mapping and Analysis Procedures (EMAPs) were developed to concisely display large amounts of hourly data. Energy Maps are generated using computer graphics to map hourly values into a time-of-day by time-of-year format. This approach has several advantages: (1) complete hourly data for several months or an entire year can be compactly displayed, (2) the graphic format reveals dailypatterns, day-to-day variations, and seasonal trends, and (3) the same method can be used for a wide range of variable types. In this paper we introduce a monochromatic version of Energy Maps for use with typical microcomputers and printers. Procedures for using and interpreting Energy Maps are suggested and demonstrated. Energy Maps based on measured data are presented for solar radiation,outdoor temperature, building heating energy use, and indoor temperatures.
    Original languageAmerican English
    Number of pages7
    StatePublished - 1985

    NREL Publication Number

    • NREL/TP-253-2669


    • EMAPS
    • energy mapping and analysis procedures


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