pvdeg.letid.calc_energy_loss#
- pvdeg.letid.calc_energy_loss(timesteps)[source]#
Returns energy loss given a timeseries containing normalized changes in maximum power
- Parameters:
timesteps (Dataframe) –
timesteps.index must be DatetimeIndex OR timesteps must include
'Datetime'column with dtype datetime- Column names must include:
'Pmp_norm', a column of normalized (0-1) maximum power such as returned by
Degradation.calc_device_params
- Returns:
energy_loss (float) – fractional energy loss over time