Pvwattsv1Poa¶
Wrapper for SAM Simulation Core model: cmod_pvwattsv1_poa.cpp
Creating an Instance¶
There are three methods to create a new instance of a PySAM module. Using default populates the newclass’ attributes with default values specific to a config. Each technology-financialconfiguration corresponds to a SAM GUI configuration. Using new creates an instance with empty attributes. The wrap function allows compatibility with PySSC, for details, refer to PySSC.
Pvwattsv1Poa model description
Pvwattsv1Poa
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PySAM.Pvwattsv1Poa.default(config) → Pvwattsv1Poa¶ Use financial config-specific default attributes
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PySAM.Pvwattsv1Poa.from_existing(data, optional config) → Pvwattsv1Poa¶ Share underlying data with an existing PySAM class. If config provided, default attributes are loaded otherwise.
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PySAM.Pvwattsv1Poa.new() → Pvwattsv1Poa¶
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PySAM.Pvwattsv1Poa.wrap(ssc_data_t) → Pvwattsv1Poa¶ 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.Pvwattsv1Poa.Pvwattsv1Poa¶ 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': { 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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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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Weather Group¶
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class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.Weather¶ -
assign() → None¶ Assign attributes from dictionary
Weather_vals = { var: val, ...}
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export() → dict¶ Export attributes into dictionary
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beam¶ Direct normal radiation [W/m2]
Required: True
Type: sequence
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incidence¶ Incidence angle to surface [deg]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
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poa_beam¶ Incident direct normal radiation [W/m2]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
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poa_gnddiff¶ Incident ground diffuse irradiance [W/m2]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
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poa_skydiff¶ Incident sky diffuse radiation [W/m2]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
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tdry¶ Dry bulb temperature [‘C]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
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wspd¶ Wind speed [m/s]
Constraints: LENGTH_EQUAL=beam
Required: True
Type: sequence
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PVWatts Group¶
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class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.PVWatts¶ -
assign() → None¶ Assign attributes from dictionary
PVWatts_vals = { var: val, ...}
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export() → dict¶ Export attributes into dictionary
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derate¶ System derate value [frac]
Constraints: MIN=0,MAX=1
Required: True
Type: float
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gamma¶ Max power temperature coefficient [%/’C]
Required: If not provided, assumed to be -0.5
Type: float
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inoct¶ Nominal operating cell temperature [‘C]
Constraints: POSITIVE
Required: If not provided, assumed to be 45.0
Type: float
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inv_eff¶ Inverter efficiency at rated power [frac]
Constraints: MIN=0,MAX=1
Required: If not provided, assumed to be 0.92
Type: float
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step¶ Time step of input data [sec]
Constraints: POSITIVE
Required: If not provided, assumed to be 3600
Type: float
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system_size¶ Nameplate capacity [kW]
Constraints: MIN=0.5,MAX=100000
Required: True
Type: float
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t_ref¶ Reference cell temperature [‘C]
Constraints: POSITIVE
Required: If not provided, assumed to be 25.0
Type: float
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Outputs Group¶
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class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.Outputs¶ -
assign() → None¶ Assign attributes from dictionary
Outputs_vals = { var: val, ...}
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export() → dict¶ Export attributes into dictionary
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ac¶ AC system output [kWhac]
Type: sequence
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dc¶ DC array output [kWhdc]
Type: sequence
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tcell¶ Cell temperature [‘C]
Type: sequence
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