diff --git a/bifacial_radiance/module.py b/bifacial_radiance/module.py
index 9ec3f968..6f863ca8 100644
--- a/bifacial_radiance/module.py
+++ b/bifacial_radiance/module.py
@@ -53,7 +53,7 @@ def __init__(self, name=None, x=None, y=None, z=None, bifi=1,
             Length of module (meters)
         z : numeric
             Thickness of the module (meters), or of the glass if glass = True,
-            in which case absorber thickness will be 0.002 and glass whatever
+            in which case absorber thickness will be 0.001 and glass whatever
             thickness is given, with absorber in the middle of the glass.
         bifi : numeric
             Bifaciality of the panel (not currently used). Between 0
@@ -173,8 +173,7 @@ def __init__(self, name=None, x=None, y=None, z=None, bifi=1,
                 self.modulefile = os.path.join('objects',
                                                        self.name + '.rad')
                 print("\nModule Name:", self.name)
-            
-            # @Chris  8/24 should this be a radObj check for hpc value?
+                  
             if hpc:
                 self.compileText(rewriteModulefile, json=False)
             else:
diff --git a/docs/sphinx/source/whatsnew/pending.rst b/docs/sphinx/source/whatsnew/pending.rst
index 8ebb8014..6482cb5c 100644
--- a/docs/sphinx/source/whatsnew/pending.rst
+++ b/docs/sphinx/source/whatsnew/pending.rst
@@ -7,7 +7,8 @@ Bugfix Release  ...
 
 API Changes
 ~~~~~~~~~~~~
-* 
+* New input parameter to :py:class:`~bifacial_radiance.ModuleObj and :py:class:`~bifacial_radiance.RadianceObj.makeModule`:  `glassEdge`.  If :py:class:`~bifacial_radiance.RadianceObj.makeModule` `glass` = True, then this extends the glass past the absorber edge by this total amount (half in each x and y direction). Default 10mm.
+* Module glass thickness can be changed. In :py:class:`~bifacial_radiance.RadianceObj.makeModule`, if `glass` = True, then setting the `z` parameter will indicate the total (front + back) glass thickness with the 1mm absorber in the middle.  The default is z = 10mm.
 
 Enhancements
 ~~~~~~~~~~~~
diff --git a/tests/test_module.py b/tests/test_module.py
index ba17d9f1..66cc53c1 100644
--- a/tests/test_module.py
+++ b/tests/test_module.py
@@ -147,4 +147,20 @@ def test_moduleFrameandOmegas():
     scene = demo.makeScene(module, sceneDict)
     analysis = bifacial_radiance.AnalysisObj()  # return an analysis object including the scan dimensions for back irradiance
     frontscan, backscan = analysis.moduleAnalysis(scene, sensorsy=10) # Gives us the dictionaries with coordinates
-    assert backscan['xstart'] == pytest.approx(0.792)
\ No newline at end of file
+    assert backscan['xstart'] == pytest.approx(0.792)
+    
+def test_GlassModule():
+    # test the cell-level module generation 
+    name = "_test_GlassModule"
+    # default glass=True with .001 absorber and 0.01 glass
+    demo = bifacial_radiance.RadianceObj(name)  # Create a RadianceObj 'object'
+    module = demo.makeModule(name='test-module', rewriteModulefile=True, glass=True, x=1, y=2)
+    assert module.text == '! genbox black test-module 1 2 0.001 | xform -t -0.5 -1.0 0 -a 1 -t 0 2.0' +\
+        ' 0\r\n! genbox stock_glass test-module_Glass 1.01 2.01 0.01 | xform -t -0.505 -1.005 -0.005 -a 1 -t 0 2.0 0'
+    # custom glass=True with .001 absorber and 0.005 glass
+    module = demo.makeModule(name='test-module', glass=True, x=1, y=2, z=0.005)  
+    assert module.text == '! genbox black test-module 1 2 0.001 | xform -t -0.5 -1.0 0 -a 1 -t 0 2.0' +\
+        ' 0\r\n! genbox stock_glass test-module_Glass 1.01 2.01 0.005 | xform -t -0.505 -1.005 -0.0025 -a 1 -t 0 2.0 0'
+    
+    
+    
\ No newline at end of file