Wfreader¶
Wrapper for SAM Simulation Core model: cmod_wfreader.cpp
Input Consistency Warning¶
As described in Possible Problems, some input parameters are interdependent but the equations that enforce consistency are not available in this PySAM module. Therefore, the onus is on the PySAM user to check that interdependencies are correctly handled. The variables which may require additional logic include:
Provided for each of these inputs is a list of other inputs that are potentially interdependent.
Creating an Instance¶
Refer to the Initializing a Model page for details on the different ways to create an instance of a PySAM class.
Wfreader model description
Wfreader
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PySAM.Wfreader.
default
(config) → Wfreader¶ Use default attributes None
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PySAM.Wfreader.
from_existing
(data, optional config) → Wfreader¶ Share underlying data with an existing PySAM class. If config provided, default attributes are loaded otherwise.
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PySAM.Wfreader.
new
() → Wfreader¶
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PySAM.Wfreader.
wrap
(ssc_data_t) → Wfreader¶ Use existing PySSC data
Warning
Do not call PySSC.data_free on the ssc_data_t provided to
wrap
Functions¶
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class
PySAM.Wfreader.
Wfreader
¶ This class contains all the variable information for running a simulation. Variables are grouped together in the subclasses as properties. If property assignments are the wrong type, an error is thrown.
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assign
(dict) → None¶ Assign attributes from nested dictionary, except for Outputs
nested_dict = { 'Weather Reader': { var: val, ...}, ...}
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execute
(int verbosity) → None¶ Execute simulation with verbosity level 0 (default) or 1
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export
() → dict¶ Export attributes into nested dictionary
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replace
(dict) → None¶ Replace attributes from nested dictionary, except for Outputs. Unassigns all values in each Group then assigns from the input dict.
nested_dict = { 'Weather Reader': { var: val, ...}, ...}
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unassign
(name) → None¶ Unassign a value in any of the variable groups.
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value
(name, optional value) → Union[None, float, dict, sequence, str]¶ Get or set by name a value in any of the variable groups.
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WeatherReader Group¶
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class
PySAM.Wfreader.Wfreader.
WeatherReader
¶ -
assign
(dict) → None¶ Assign attributes from dictionary, overwriting but not removing values
WeatherReader_vals = { var: val, ...}
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export
() → dict¶ Export attributes into dictionary
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replace
(dict) → None¶ Replace attributes from dictionary, unassigning values not present in input dict
WeatherReader_vals = { var: val, ...}
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file_name
¶ local weather file path
Constraints: LOCAL_FILE
Required: True
Type: str
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header_only
¶ read header only [0/1]
Constraints: BOOLEAN
Required: If not provided, assumed to be 0
Type: float
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Outputs Group¶
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class
PySAM.Wfreader.Wfreader.
Outputs
¶ -
assign
(dict) → None¶ Assign attributes from dictionary, overwriting but not removing values
Outputs_vals = { var: val, ...}
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export
() → dict¶ Export attributes into dictionary
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replace
(dict) → None¶ Replace attributes from dictionary, unassigning values not present in input dict
Outputs_vals = { var: val, ...}
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albedo
¶ Ground Reflectance [frac]
Type: sequence
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annual_albedo
¶ Average albedo
Type: float
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annual_beam
¶ Average daily beam normal [kWh/m2/day]
Type: float
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annual_diff
¶ Average daily diffuse [kWh/m2/day]
Type: float
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annual_glob
¶ Average daily global horizontal [kWh/m2/day]
Type: float
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annual_snow
¶ Maximum snow depth [cm]
Type: float
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annual_tdry
¶ Average dry bulb temperature [‘C]
Type: float
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annual_wspd
¶ Average wind speed [m/s]
Type: float
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beam
¶ Beam Normal Irradiance [W/m2]
Type: sequence
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city
¶ City
Type: str
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country
¶ Country
Type: str
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day
¶ Day [dy]
Type: sequence
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description
¶ Description
Type: str
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diff
¶ Diffuse Horizontal Irradiance [W/m2]
Type: sequence
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elev
¶ Elevation [m]
Type: float
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format
¶ File format
Type: str
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glob
¶ Global Horizontal Irradiance [W/m2]
Type: sequence
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hour
¶ Hour [hr]
Type: sequence
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lat
¶ Latitude [deg]
Type: float
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location
¶ Location ID
Type: str
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lon
¶ Longitude [deg]
Type: float
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minute
¶ Minute [min]
Type: sequence
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month
¶ Month [mn]
Type: sequence
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nrecords
¶ Number of records
Type: float
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poa
¶ Plane of Array Irradiance [W/m2]
Type: sequence
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pres
¶ Atmospheric Pressure [millibar]
Type: sequence
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rhum
¶ Relative Humidity [%]
Type: sequence
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snow
¶ Snow Depth [cm]
Type: sequence
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source
¶ Source
Type: str
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start
¶ Start [sec]
Type: float
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state
¶ State
Type: str
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step
¶ Step [sec]
Type: float
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tdew
¶ Temperature Dew Point [‘C]
Type: sequence
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tdry
¶ Temperature Dry Bulb [‘C]
Type: sequence
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twet
¶ Temperature Wet Bulb [‘C]
Type: sequence
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tz
¶ Time zone [hr]
Type: float
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url
¶ URL
Type: str
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wdir
¶ Wind Direction [deg]
Type: sequence
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wspd
¶ Wind Speed [m/s]
Type: sequence
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year
¶ Year [yr]
Type: sequence
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