whatsnew, lint

Author: cwhanse

docs/sphinx/source/whatsnew/v0.15.1.rst

@@ -36,6 +36,8 @@ Enhancements
 * Include `ross` and `faiman_rad` in the allowed models within 
   :py:meth:`pvlib.pvsystem.PVSystem.get_cell_temperature` (:issue:`2625`, :pull:`2631`)  
 * Accelerate the internals of :py:func:`~pvlib.solarpostion.ephemeris`. (:pull:`2626`)
+* Accelerate the intervals of :py:func:`~pvlib.pvsystem.singlediode` when
+  `method='lambertw'`. (:pull:`2732`, :pull:`2723`)
 
 Documentation
 ~~~~~~~~~~~~~

pvlib/singlediode.py

@@ -8,7 +8,7 @@
 from pvlib.ivtools.utils import _lambertw_pvlib, _log_lambertw
 
 from scipy.optimize import brentq, newton
-#from scipy.special import lambertw
+
 
 # newton method default parameters for this module
 NEWTON_DEFAULT_PARAMS = {
@@ -816,7 +816,6 @@ def _lambertw_v_from_i(current, photocurrent, saturation_current,
                        (Gsh[idx_inf] * a[idx_inf]))
             lambertwterm[idx_inf] = _log_lambertw(logargW)
 
-
         # Eqn. 3 in Jain and Kapoor, 2004
         #  V = -I*(Rs + Rsh) + IL*Rsh - a*lambertwterm + I0*Rsh
         # Recast in terms of Gsh=1/Rsh for better numerical stability.