feedinlib.models.Pvlib¶

class
feedinlib.models.
Pvlib
(**kwargs)[source]¶ Model to determine the feedin of a photovoltaic module using the pvlib.
The pvlib [1] is a python library for simulating the performance of photovoltaic energy systems. For more information about the photovoltaic model check the documentation of the pvlib [2].
Notes
In order to use this model various power plant and model parameters have to be provided. See
power_plant_requires
as well asrequires
for further information. Furthermore, the weather data used to calculate the feedin has to have a certain format. Seefeedin()
for further information.References
[1] pvlib on github [2] pvlib documentation See also
Methods
__init__
(**kwargs)feedin
(weather, power_plant_parameters, **kwargs)Calculates power plant feedin in Watt. instantiate_module
(**kwargs)Instantiates a pvlib.PVSystem object. Attributes
power_plant_requires
The power plant parameters this model requires to calculate a feedin. pv_system_area
Area of PV system in . pv_system_peak_power
Peak power of PV system in Watt. requires
The parameters this model requires to calculate a feedin. 
feedin
(weather, power_plant_parameters, **kwargs)[source]¶ Calculates power plant feedin in Watt.
This function uses the pvlib.ModelChain to calculate the feedin for the given weather time series and PV system. By default the AC feedin is returned. Set mode parameter to ‘dc’ to retrieve DC feedin.
Parameters:  weather (pandas.DataFrame) – Weather time series used to calculate feedin. See weather parameter in pvlib’s Modelchain run_model method for more information on required variables, units, etc.
 power_plant_parameters (dict) – Dictionary with power plant specifications. Keys of the dictionary
are the power plant parameter names, values of the dictionary hold
the corresponding value. The dictionary must at least contain the
required power plant parameters (see
power_plant_requires
) and may further contain optional power plant parameters (see pvlib.PVSystem).  location (
tuple
or shapely.Point) – Geo location of the PV system. Can either be provided as a tuple with first entry being the latitude and second entry being the longitude or as a shapely.Point.  mode (str (optional)) –
Can be used to specify whether AC or DC feedin is returned. By default mode is ‘ac’. To retrieve DC feedin set mode to ‘dc’.
mode also influences the peak power of the PV system. See
pv_system_peak_power
for more information.  **kwargs – Further keyword arguments can be used to overwrite pvlib.ModelChain parameters.
Returns: Power plant feedin time series in Watt.
Return type:

instantiate_module
(**kwargs)[source]¶ Instantiates a pvlib.PVSystem object.
Parameters: **kwargs – See power_plant_parameters parameter in feedin()
for more information.Returns: PV system to calculate feedin for. Return type: pvlib.PVSystem

power_plant_requires
¶ The power plant parameters this model requires to calculate a feedin.
The required power plant parameters are:
module_name, inverter_name, azimuth, tilt, albedo/surface_type
 module_name (str)
 Name of the PV module as in the Sandia module database. Use
get_power_plant_data()
with dataset = ‘sandiamod’ to get an overview of all provided modules. See the data set documentation [3] for further information on provided parameters.  inverter_name (str)
 Name of the inverter as in the CEC inverter database. Use
get_power_plant_data()
with dataset = ‘cecinverter’ to get an overview of all provided inverters. See the data set documentation [4] for further information on provided parameters.  azimuth (float)
Azimuth angle of the module surface (South=180).
See also PVSystem.surface_azimuth in pvlib documentation.
 tilt (float)
Surface tilt angle in decimal degrees. The tilt angle is defined as degrees from horizontal (e.g. surface facing up = 0, surface facing horizon = 90).
See also PVSystem.surface_tilt in pvlib documentation.
 albedo (float)
 The ground albedo. See also PVSystem.albedo in pvlib documentation.
 surface_type (str)
 The ground surface type. See SURFACE_ALBEDOS in pvlib.irradiance module for valid values.
References
[3] Sandia module database documentation [4] CEC inverter database documentation

pv_system_area
¶ Area of PV system in .

pv_system_peak_power
¶ Peak power of PV system in Watt.
The peak power of the PV system can either be limited by the inverter or the PV module(s), wherefore in the case the mode parameter, which specifies whether AC or DC feedin is calculated, is set to ‘ac’ (which is the default), the minimum of AC inverter power and maximum power of the module(s) is returned. In the case that mode is set to ‘dc’ the inverter power is not considered and the peak power is equal to the maximum power of the module(s).

requires
¶ The parameters this model requires to calculate a feedin.
The required model parameters are:
location
 location (
tuple
or shapely.Point)  Geo location of the PV system. Can either be provided as a tuple with first entry being the latitude and second entry being the longitude or as a shapely.Point.
 location (
