diff --git a/docs/source/release_notes.rst b/docs/source/release_notes.rst
index 0f5a9d9..fc470ec 100644
--- a/docs/source/release_notes.rst
+++ b/docs/source/release_notes.rst
@@ -26,6 +26,8 @@ Version 1.0.1
 * Add ability to correlate ``sat_args`` between satellites with the ``sat_arg_randomizer``
   option in :class:`~bsk_rl.GeneralSatelliteTasking`.  This is demonstrated in the setup
   of a constellation in the `multiagent example <examples/multiagent_envs.ipynb>`_.
+* The default solar panel normal direction is now the negative z-axis, which is antiparallel
+  to the default instrument direction.
 
 
 Version 1.0.0
diff --git a/src/bsk_rl/sim/dyn.py b/src/bsk_rl/sim/dyn.py
index 35b8b22..7687386 100644
--- a/src/bsk_rl/sim/dyn.py
+++ b/src/bsk_rl/sim/dyn.py
@@ -560,7 +560,7 @@ def setup_eclipse_object(self) -> None:
     @default_args(
         panelArea=2 * 1.0 * 0.5,
         panelEfficiency=0.20,
-        nHat_B=np.array([0, 1, 0]),
+        nHat_B=np.array([0, 0, -1]),
     )
     def setup_solar_panel(
         self,