diff --git a/reV/SAM/generation.py b/reV/SAM/generation.py
index e2187f7f2..ed2c3ab08 100644
--- a/reV/SAM/generation.py
+++ b/reV/SAM/generation.py
@@ -233,6 +233,15 @@ def check_resource_data(self, resource):
             logger.error(msg)
             raise InputError(msg)
 
+        if len(resource) < 8760:
+            msg = (f"Detected resource time series of length "
+                   f"{len(resource)}, which is less than 8760. This may "
+                   f"yeild unexpected results or fail altogether. If this "
+                   f"is not intentional, try setting 'time_index_step: 1' "
+                   f"in your SAM config")
+            logger.warning(msg)
+            warn(msg)
+
     @abstractmethod
     def set_resource_data(self, resource, meta):
         """Placeholder for resource data setting (nsrdb or wtk)"""
@@ -851,6 +860,8 @@ def set_resource_data(self, resource, meta):
                 time_index, resource.pop("albedo")
             )
 
+        pd.DataFrame(resource).to_csv("/scratch/ppinchuk/test_pvwatts.csv", index=False)
+
         self["solar_resource_data"] = resource
 
 
diff --git a/reV/bespoke/bespoke.py b/reV/bespoke/bespoke.py
index 3632dfbe9..f0042f614 100644
--- a/reV/bespoke/bespoke.py
+++ b/reV/bespoke/bespoke.py
@@ -912,6 +912,15 @@ def res_df(self):
                 ti_step = self.original_sam_sys_inputs["time_index_step"]
                 self._res_df = self._res_df.iloc[::ti_step]
 
+        if len(self._res_df) < 8760:
+            msg = (f"Detected resource time series of length "
+                   f"{len(self._res_df)}, which is less than 8760. This may "
+                   f"yeild unexpected results or fail altogether. If this "
+                   f"is not intentional, try setting 'time_index_step: 1' "
+                   f"in your SAM config")
+            logger.warning(msg)
+            warn(msg)
+
         return self._res_df
 
     @property