Pvwattsv1Poa¶
Pvwattsv1Poa
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PySAM.Pvwattsv1Poa.
default
(config) → Pvwattsv1Poa¶ Load defaults for the configuration
config
. Available configurations are:- None
Note
Some inputs do not have default values and may be assigned a value from the variable’s Required attribute. See variable attribute descriptions below.
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PySAM.Pvwattsv1Poa.
from_existing
(data, optional config) → Pvwattsv1Poa¶ Share data with an existing PySAM class. If
optional config
is a valid configuration name, load the module’s defaults for that configuration.
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PySAM.Pvwattsv1Poa.
new
() → Pvwattsv1Poa¶
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PySAM.Pvwattsv1Poa.
wrap
(ssc_data_t) → Pvwattsv1Poa¶ Load data from a PySSC object.
Warning
Do not call PySSC.data_free on the ssc_data_t provided to
wrap()
Pvwattsv1Poa is a wrapper for the SSC compute module cmod_pvwattsv1_poa.cpp
Interdependent Variables¶
The variables listed below are interdependent with other variables. If you change the value of one of these variables, you may need to change values of other variables. The SAM user interface manages these interdependent variables, but in PySAM, it is up to you change the value of all interdependent variables so they are consistent. See Interdependent Variables for examples and details.
- None
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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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': { 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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Weather Group¶
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class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.
Weather
¶ -
assign
(dict) → None¶ Assign attributes from dictionary, overwriting but not removing values.
Weather_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
.Weather_vals = { var: val, ...}
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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
(dict) → None¶ Assign attributes from dictionary, overwriting but not removing values.
PVWatts_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
.PVWatts_vals = { var: val, ...}
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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: False. Automatically set to -0.5 if not assigned explicitly or loaded from defaults.
Type: float
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inoct
¶ Nominal operating cell temperature [‘C]
Constraints: POSITIVE
Required: False. Automatically set to 45.0 if not assigned explicitly or loaded from defaults.
Type: float
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inv_eff
¶ Inverter efficiency at rated power [frac]
Constraints: MIN=0,MAX=1
Required: False. Automatically set to 0.92 if not assigned explicitly or loaded from defaults.
Type: float
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step
¶ Time step of input data [sec]
Constraints: POSITIVE
Required: False. Automatically set to 3600 if not assigned explicitly or loaded from defaults.
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: False. Automatically set to 25.0 if not assigned explicitly or loaded from defaults.
Type: float
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Outputs Group¶
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class
PySAM.Pvwattsv1Poa.Pvwattsv1Poa.
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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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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