8000 [DOC] specify units in pvwatts normalization functions by kandersolar · Pull Request #276 · NREL/rdtools · GitHub
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[DOC] specify units in pvwatts normalization functions #276

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May 17, 2021
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[DOC] specify units in pvwatts normalization functions #276

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18 changes: 9 additions & 9 deletions rdtools/normalization.py
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Original file line number Diff line number Diff line change
Expand Up @@ -83,9 +83,9 @@ def pvwatts_dc_power(poa_global, power_dc_rated, temperature_cell=None,
Parameters
----------
poa_global : pd.Series
Total effective plane of array irradiance.
Total effective plane of array irradiance [W/m**2].
power_dc_rated : float
Rated DC power of array in watts
Rated DC power of array [W]
temperature_cell : pd.Series, optional
Measured or derived cell temperature [degrees Celsius].
Time series assumed to be same frequency as ``poa_global``.
Expand All @@ -106,7 +106,7 @@ def pvwatts_dc_power(poa_global, power_dc_rated, temperature_cell=None,
Returns
-------
power_dc : pd.Series
DC power in watts determined by PVWatts v5 equation.
DC power determined by PVWatts v5 equation [W].
'''

power_dc = power_dc_rated * poa_global / poa_global_ref
Expand All @@ -130,18 +130,18 @@ def normalize_with_pvwatts(energy, pvwatts_kws):
Parameters
----------
energy : pd.Series
Energy time series to be normalized in watt hours.
Energy time series to be normalized [Wh].
Must be a right-labeled regular time series.
pvwatts_kws : dict
Dictionary of parameters used in the pvwatts_dc_power function. See
Other Parameters.

Other Parameters
------------------
----------------
poa_global : pd.Series
Total effective plane of array irradiance.
Total effective plane of array irradiance [W/m**2].
power_dc_rated : float
Rated DC power of array in watts
Rated DC power of array [W]
temperature_cell : pd.Series, optional
Measured or derived cell temperature [degrees Celsius].
Time series assumed to be same frequency as `poa_global`.
Expand All @@ -162,9 +162,9 @@ def normalize_with_pvwatts(energy, pvwatts_kws):
Returns
-------
energy_normalized : pd.Series
Energy divided by PVWatts DC energy.
Energy divided by PVWatts DC energy [unitless].
insolation : pd.Series
Insolation associated with each normalized point
Insolation associated with each normalized point [Wh/m**2]
'''

power_dc = pvwatts_dc_power(**pvwatts_kws)
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