From c584fe306d7b32cbbf3de39b1dfe99709fcd6ca9 Mon Sep 17 00:00:00 2001
From: "Adam R. Jensen" <39184289+AdamRJensen@users.noreply.github.com>
Date: Wed, 5 Aug 2026 14:48:02 +0200
Subject: [PATCH 1/4] Correct column names in logical record 0500 in
 get/read_bsrn

---
 pvlib/iotools/bsrn.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/pvlib/iotools/bsrn.py b/pvlib/iotools/bsrn.py
index f42e37caaf..c6922287ce 100644
--- a/pvlib/iotools/bsrn.py
+++ b/pvlib/iotools/bsrn.py
@@ -45,7 +45,6 @@
                        'empty', 'empty', 'empty', 'empty',
                        'uvb_global', 'uvb_global_std', 'uvb_global_min',
                        'uvb_global_max', 'uvb_diffuse', 'uvb_diffuse_std',
-                       'uvb_diffuse', 'uvb_diffuse_std',
                        'uvb_diffuse_min', 'uvb_diffuse_max',
                        'uvb_reflected', 'uvb_reflected_std',
                        'uvb_reflected_min', 'uvb_reflected_max']

From 3a4030a132cd8715c40eb7403a45db17f6f3642b Mon Sep 17 00:00:00 2001
From: "Adam R. Jensen" <39184289+AdamRJensen@users.noreply.github.com>
Date: Wed, 5 Aug 2026 15:04:47 +0200
Subject: [PATCH 2/4] Add missing empty column names

---
 pvlib/iotools/bsrn.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pvlib/iotools/bsrn.py b/pvlib/iotools/bsrn.py
index c6922287ce..f523d92c67 100644
--- a/pvlib/iotools/bsrn.py
+++ b/pvlib/iotools/bsrn.py
@@ -42,7 +42,7 @@
 BSRN_LR0500_COLUMNS = ['day', 'minute', 'uva_global', 'uva_global_std',
                        'uva_global_min', 'uva_global_max', 'uvb_direct',
                        'uvb_direct_std', 'uvb_direct_min', 'uvb_direct_max',
-                       'empty', 'empty', 'empty', 'empty',
+                       'empty', 'empty', 'empty', 'empty', 'empty', 'empty',
                        'uvb_global', 'uvb_global_std', 'uvb_global_min',
                        'uvb_global_max', 'uvb_diffuse', 'uvb_diffuse_std',
                        'uvb_diffuse_min', 'uvb_diffuse_max',

From 854b818e4a63865264c83fd7c39822eb593ae133 Mon Sep 17 00:00:00 2001
From: "Adam R. Jensen" <39184289+AdamRJensen@users.noreply.github.com>
Date: Wed, 5 Aug 2026 15:16:52 +0200
Subject: [PATCH 3/4] Update v0.16.0.rst

---
 docs/sphinx/source/whatsnew/v0.16.0.rst | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/sphinx/source/whatsnew/v0.16.0.rst b/docs/sphinx/source/whatsnew/v0.16.0.rst
index 6d62b9e1c6..b8a22c9f8e 100644
--- a/docs/sphinx/source/whatsnew/v0.16.0.rst
+++ b/docs/sphinx/source/whatsnew/v0.16.0.rst
@@ -19,7 +19,10 @@ Deprecations
 
 Bug fixes
 ~~~~~~~~~
-
+* Fix incorrect column naming when parsing data from logical record
+  0500 using :py:func:`~pvlib.iotools.read_bsrn` or
+  :py:func:`~pvlib.iotools.get_bsrn`.
+  (:issue:`2835`, :pull:`2841`)
 
 Enhancements
 ~~~~~~~~~~~~

From d418f3b951e6b28ccb5012b58cad785be49de9a4 Mon Sep 17 00:00:00 2001
From: "Adam R. Jensen" <39184289+AdamRJensen@users.noreply.github.com>
Date: Wed, 5 Aug 2026 15:23:49 +0200
Subject: [PATCH 4/4] Add test

---
 tests/iotools/test_bsrn.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/iotools/test_bsrn.py b/tests/iotools/test_bsrn.py
index 8d8f905635..5bb9434f47 100644
--- a/tests/iotools/test_bsrn.py
+++ b/tests/iotools/test_bsrn.py
@@ -76,6 +76,9 @@ def test_read_bsrn_logical_records(expected_index):
     assert 'uva_global' in data.columns
     assert 'uvb_reflected_std' in data.columns
     assert 'ghi' not in data.columns
+    # Check that there are no duplicate columns when parsing
+    # LR0500 data (see #2841)
+    assert not data.columns.duplicated().any()
 
 
 def test_read_bsrn_bad_logical_record():