rdtools.soiling.annual_soiling_ratios¶
- rdtools.soiling.annual_soiling_ratios(stochastic_soiling_profiles, insolation_daily, confidence_level=68.2)¶
Return annualized soiling ratios and associated confidence intervals based on stochastic soiling profiles from SRR. Note that each year may be affected by previous years' profiles for all SRR cleaning assumptions (i.e. method) except perfect_clean.
- Parameters
stochastic_soiling_profiles (list) -- List of pd.Series representing profile realizations from the SRR monte carlo. Typically
soiling_interval_summary['stochastic_soiling_profiles']obtained withrdtools.soiling.soiling_srr()orrdtools.soiling.SRRAnalysis.run()insolation_daily (pandas.Series) -- Daily plane-of-array insolation with DatetimeIndex. Arbitrary units.
confidence_level (float, default 68.2) -- The size of the confidence interval to use in determining the upper and lower quantiles reported in the returned DataFrame. (The median is always included in the result.)
- Returns
DataFrame describing annual soiling rates.
Column Name
Description
'year'
Calendar year
'soiling_ratio_median'
The median insolation-weighted soiling ratio for the year
'soiling_ratio_low'
The lower edge of the confidence interval for insolation-weighted soiling ratio for the year
'soiling_ratio_high'
The upper edge of the confidence interval for insolation-weighted soiling ratio for the year
- Return type