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epwFormat.txt
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epwFormat.txt
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LOCATION
A1,field,city
type,alpha
A2,field,State Province Region
type,alpha
A3,field,Country
type,alpha
A4,field,Source
type,alpha
N1,field,WMO
note,usually a 6 digit field. Used as alpha in EnergyPlus
type,alpha
N2,field,Latitude
units,deg
minimum,neg90.0
maximum,pos90.0
default,0.0
note,pos is North,neg is South,degree minutes represented in decimal (i.e. 30 minutes is.5)
type,real
N3,field,Longitude
units,deg
minimum,neg180.0
maximum,pos180.0
default,0.0
note,neg is West,pos is East,degree minutes represented in decimal (i.e. 30 minutes is .5)
type,real
N4,field,TimeZone
units,hr neg not on standard units list???
minimum,neg12.0
maximum,pos12.0
default,0.0
note,Time relative to GMT.
type,real
N5,field,Elevation
units,m
minimum,neg1000.0
maximum,< pos9999.9
default,0.0
type,real
DESIGN CONDITIONS
N1,field,Number of Design Conditions
A1,field,Design Condition Source
note,current sources are ASHRAE HOF 2009 US Design Conditions,Canadian Design Conditions
note,and World Design Conditions
A2,field,Design Condition Type (HEATING)
note,fields here will be dependent on the source,they are shown in a header/data format
note,in both the .rpt and .csv files that are produced by the WeatherConverter program
A3,field,Design Condition Type (COOLING)
note,same as note on Heating Design Conditions
A4,field,Design Condition Type (EXTREMES)
note,same as note on Heating Design Conditions
TYPICAL/EXTREME PERIODS
N1,field,Number of Typical/Extreme Periods
A1,field,Typical/Extreme Period 1 Name
A2,field,Typical/Extreme Period 1 Type
A3,field,Period 1 Start Day
A4,field,Period 1 End Day
note,repeat (A1toA3) until number of typical periods etc to # of periods entered
GROUND TEMPERATURES
N1,field,Number of Ground Temperature Depths
N2,field,Ground Temperature Depth 1
units,m
N3,field,Depth 1 Soil Conductivity
units,W/m-k,
N4,field,Depth 1 Soil Density
units,kg/m3
N5,field,Depth 1 Soil Specific Heat
units,J/kg-k,
N6,field,Depth 1 January Average Ground Temperature
units,C
N7,field,Depth 1 February Average Ground Temperature
units,C
N8,field,Depth 1 March Average Ground Temperature
units,C
N9,field,Depth 1 April Average Ground Temperature
units,C
N10,field,Depth 1 May Average Ground Temperature
units,C
N11,field,Depth 1 June Average Ground Temperature
units,C
N12,field,Depth 1 July Average Ground Temperature
units,C
N13,field,Depth 1 August Average Ground Temperature
units,C
N14,field,Depth 1 September Average Ground Temperature
units,C
N15,field,Depth 1 October Average Ground Temperature
units,C
N16,field,Depth 1 November Average Ground Temperature
units,C
N17,field,Depth 1 December Average Ground Temperature
units,C
note,repeat above (N2toN17) to number of ground temp depths indicated etc to # of depths entered
HOLIDAYS/DAYLIGHT SAVINGS
A1,field,LeapYear Observed
type,choice
key,Yes
key,No
note,Yes if Leap Year will be observed for this file
note,No if Leap Year days (29 Feb) should be ignored in this file
A2,field,Daylight Saving Start Day
A3,field,Daylight Saving End Day
N1,field,Number of Holidays (essentially unlimited)
A4,field,Holiday 1 Name
A5,field,Holiday 1 Day
note,repeat above two fields until Number of Holidays is reached etc to # of Holidays entered
COMMENTS 1
A1,field,Comments_1
COMMENTS 2
A1,field,Comments_2
DATA PERIODS
N1,field,Number of Data Periods
N2,field,Number of Records per hour
A1,field,Data Period 1 Name/Description
A2,field,Data Period 1 Start Day of Week
type,choice
key,Sunday
key,Monday
key,Tuesday
key,Wednesday
key,Thursday
key,Friday
key,Saturday
A3,field,Data Period 1 Start Day
A4,field,Data Period 1 End Day
note,repeat above to number of data periods etc to # of periods entered
ACTUAL DATA
N1,field,Year
N2,field,Month
N3,field,Day
N4,field,Hour
N5,field,Minute
A1,field,Data Source and Uncertainty Flags
note,Initial day of weather file is checked by EnergyPlus for validity (as shown below)
note,Each field is checked for "missing" as shown below. Reasonable values,calculated
note,values or the last "good" value is substituted.
N6,field,Dry Bulb Temperature
units,C
minimum,> neg70
maximum,< 70
missing,99.9
N7,field,Dew Point Temperature
units,C
minimum,> neg70
maximum,< 70
missing,99.9
N8,field,Relative Humidity
missing,999.
minimum,0
maximum,110
N9,field,Atmospheric Station Pressure
units,Pa
missing,999999.
minimum,> 31000
maximum,< 120000
N10,field,Extraterrestrial Horizontal Radiation
units,Wh/m2
missing,9999.
minimum,0
N11,field,Extraterrestrial Direct Normal Radiation
units,Wh/m2
missing,9999.
minimum,0
N12,field,Horizontal Infrared Radiation Intensity
units,Wh/m2
missing,9999.
minimum,0
N13,field,Global Horizontal Radiation
units,Wh/m2
missing,9999.
minimum,0
N14,field,Direct Normal Radiation
units,Wh/m2
missing,9999.
minimum,0
N15,field,Diffuse Horizontal Radiation
units,Wh/m2
missing,9999.
minimum,0
N16,field,Global Horizontal Illuminance
units,lux
missing,999999.
note,will be missing if > 999900
minimum,0
N17,field,Direct Normal Illuminance
units,lux
missing,999999.
note,will be missing if > 999900
minimum,0
N18,field,Diffuse Horizontal Illuminance
units,lux
missing,999999.
note,will be missing if > 999900
minimum,0
N19,field,Zenith Luminance
units,Cd/m2
missing,9999.
note,will be missing if > 9999
minimum,0
N20,field,Wind Direction
units,degrees
missing,999.
minimum,0
maximum,360
N21,field,Wind Speed
units,m/s
missing,999.
minimum,0
maximum,40
N22,field,Total Sky Cover
missing,99
minimum,0
maximum,10
N23,field,Opaque Sky Cover (used if Horizontal IR Intensity missing)
missing,99
minimum,0
maximum,10
N24,field,Visibility
units,km
missing,9999
N25,field,Ceiling Height
units,m
missing,99999
N26,field,Present Weather Observation
N27,field,Present Weather Codes
N28,field,Precipitable Water
units,mm
missing,999
N29,field,Aerosol Optical Depth
units,thousandths
missing,.999
N30,field,Snow Depth
units,cm
missing,999
N31,field,Days Since Last Snowfall
missing,99
N32,field,Albedo
missing,999
N33,field,Liquid Precipitation Depth
units,mm
missing,999
N34,field,Liquid Precipitation Quantity
units,hr
missing,99