Pvwattsv1Poa

Pvwattsv1Poa

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.

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.

PySAM.Pvwattsv1Poa.new() → Pvwattsv1Poa
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

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.

assign(dict) → None

Assign attributes from nested dictionary, except for Outputs

nested_dict = { 'Weather': { var: val, ...}, ...}

execute(int verbosity) → None

Execute simulation with verbosity level 0 (default) or 1

export() → dict

Export attributes into nested dictionary

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, ...}, ...}

unassign(name) → None

Unassign a value in any of the variable groups.

value(name, optional value) → Union[None, float, dict, sequence, str]

Get or set by name a value in any of the variable groups.

Weather Group

class PySAM.Pvwattsv1Poa.Pvwattsv1Poa.Weather
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Weather_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Weather_vals = { var: val, ...}

beam

Direct normal radiation [W/m2]

Required: True

Type:sequence
incidence

Incidence angle to surface [deg]

Constraints: LENGTH_EQUAL=beam

Required: True

Type:sequence
poa_beam

Incident direct normal radiation [W/m2]

Constraints: LENGTH_EQUAL=beam

Required: True

Type:sequence
poa_gnddiff

Incident ground diffuse irradiance [W/m2]

Constraints: LENGTH_EQUAL=beam

Required: True

Type:sequence
poa_skydiff

Incident sky diffuse radiation [W/m2]

Constraints: LENGTH_EQUAL=beam

Required: True

Type:sequence
tdry

Dry bulb temperature [‘C]

Constraints: LENGTH_EQUAL=beam

Required: True

Type:sequence
wspd

Wind speed [m/s]

Constraints: LENGTH_EQUAL=beam

Required: True

Type:sequence

PVWatts Group

class PySAM.Pvwattsv1Poa.Pvwattsv1Poa.PVWatts
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

PVWatts_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

PVWatts_vals = { var: val, ...}

derate

System derate value [frac]

Constraints: MIN=0,MAX=1

Required: True

Type:float
gamma

Max power temperature coefficient [%/’C]

Required: False. Automatically set to -0.5 if not assigned explicitly or loaded from defaults.

Type:float
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
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
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
system_size

Nameplate capacity [kW]

Constraints: MIN=0.5,MAX=100000

Required: True

Type:float
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

Outputs Group

class PySAM.Pvwattsv1Poa.Pvwattsv1Poa.Outputs
assign(dict) → None

Assign attributes from dictionary, overwriting but not removing values.

Outputs_vals = { var: val, ...}

export() → dict

Export attributes into dictionary.

replace(dict) → None

Replace attributes from dictionary, unassigning values not present in input dict.

Outputs_vals = { var: val, ...}

ac

AC system output [kWhac]

Type:sequence
dc

DC array output [kWhdc]

Type:sequence
tcell

Cell temperature [‘C]

Type:sequence