Add whatsnew

Author: AdamRJensen

docs/sphinx/source/whatsnew/v0.12.1.rst

@@ -15,6 +15,9 @@ Breaking Changes
   :py:func:`~pvlib.iotools.get_pvgis_tmy` now return ``(data,meta)``
   following the iotools convention instead of ``(data,months_selected,inputs,meta)``.
   (:pull:`2470`)
+* :py:func:`~pvlib.iotools.get_pvgis_tmy` now defaults to ``coerce_year=1990``,
+  whereas the default behavior previously was to use the years of the selected
+  months for the TMY index. (:pull:`2474`)
 * Remove ``outputformat='basic'`` option in :py:func:`~pvlib.iotools.get_pvgis_tmy`.
   (:pull:`2416`)
 

tests/iotools/test_pvgis.py

@@ -493,10 +493,10 @@ def test_get_pvgis_tmy_coerce_year():
 @pytest.mark.flaky(reruns=RERUNS, reruns_delay=RERUNS_DELAY)
 def test_get_pvgis_tmy_csv(expected, month_year_expected, inputs_expected,
                            meta_expected, csv_meta, coerce_year=None):
-    pvgis_data = get_pvgis_tmy(45, 8, outputformat='csv', map_variables=False)
+    pvgis_data = get_pvgis_tmy(45, 8, outputformat='csv', map_variables=False,
+                               coerce_year=None)
     _compare_pvgis_tmy_csv(expected, month_year_expected, inputs_expected,
-                           meta_expected, csv_meta, pvgis_data,
-                           coerce_year=None)
+                           meta_expected, csv_meta, pvgis_data)
 
 
 def _compare_pvgis_tmy_csv(expected, month_year_expected, inputs_expected,