E5DE [WIP] implement SEDES2 all-sky spectral irradiance model by kandersolar · Pull Request #2616 · pvlib/pvlib-python · GitHub
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[WIP] implement SEDES2 all-sky spectral irradiance model #2616

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[WIP] implement SEDES2 all-sky spectral irradiance model #2616

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f053716
create sedes2, include in docs
kandersolar Dec 8, 2025
c89ac2f
Update sedes2.py
kandersolar Dec 8, 2025
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Update sedes2.py
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@kandersolar
kandersolar committed Dec 8, 2025
commit c89ac2f54076a18e412dcba63b13ba9c6d22bbec
8 changes: 4 additions & 4 deletions pvlib/spectrum/sedes2.py
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Expand Up @@ -3,7 +3,6 @@
"""

import numpy as np
from scipy.interpolate import make_interp_spline
from pvlib.tools import cosd

SEDES2_COEFFS = np.array([
Expand Down Expand Up @@ -161,9 +160,10 @@ def sedes2(spectra_direct_clear, spectra_diffuse_clear, wavelengths,
cos_aoi = np.clip(cosd(aoi), a_min=0, a_max=None)
cos_aoi = np.atleast_1d(cos_aoi)[np.newaxis, :]

# interpolate coefficients to match input wavelengths
interp = make_interp_spline(SEDES2_COEFFS[:, 0], SEDES2_COEFFS[:, 1:], k=1)
coef = interp(wavelengths).T
# interpolate coefficients to match input wavelengths.
# note that np.interp does nearest-neighbor extrapolation, as desired.
coef = [np.interp(wavelengths, SEDES2_COEFFS[:, 0], SEDES2_COEFFS[:, i])
for i in range(1, 7)]
coef = [x[:, np.newaxis] for x in coef] # add dimension for time
A1, A2, B1, B2, C1, C2 = coef

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