diff --git a/modulefiles/gdas2gldas.hera b/modulefiles/gdas2gldas.hera
deleted file mode 100644
index 4e87c2f..0000000
--- a/modulefiles/gdas2gldas.hera
+++ /dev/null
@@ -1,17 +0,0 @@
-#%Module#####################################################
-## Build module for hera
-#############################################################
-
-module use /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/18.0.5.274
-module load hpc-impi/2018.0.4
-
-module load w3nco/2.4.1
-module load nemsio/2.5.2
-module load bacio/2.4.1
-module load sp/2.3.3 
- 
-module load netcdf/4.7.4
-module load hdf5/1.10.6
-module load esmf/8_1_1
diff --git a/modulefiles/gdas2gldas.hera.lua b/modulefiles/gdas2gldas.hera.lua
new file mode 100644
index 0000000..656a882
--- /dev/null
+++ b/modulefiles/gdas2gldas.hera.lua
@@ -0,0 +1,33 @@
+help([[
+Load environment to run GLDAS on Hera
+]])
+
+prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "18.0.5.274"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.0.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+sp_ver=os.getenv("sp_ver") or "2.3.3"
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("nemsio", nemsio_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("sp", sp_ver))
+
+hdf5_ver=os.getenv("hdf5_ver") or "1.10.6"
+netcdf_ver=os.getenv("netcdf_ver") or "4.7.4"
+esmf_ver=os.getenv("esmf_ver") or "8_2_0"
+
+load(pathJoin("hdf5", hdf5_ver))
+load(pathJoin("netcdf", netcdf_ver))
+load(pathJoin("esmf", esmf_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gdas2gldas.orion b/modulefiles/gdas2gldas.orion
deleted file mode 100644
index ee5d164..0000000
--- a/modulefiles/gdas2gldas.orion
+++ /dev/null
@@ -1,16 +0,0 @@
-#%Module#####################################################
-### Build module for orion
-##############################################################
- 
-module use /apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/2018.4
-module load hpc-impi/2018.4
-
-module load w3nco/2.4.1
-module load nemsio/2.5.2
-module load bacio/2.4.1
-module load sp/2.3.3
-
-module load netcdf/4.7.4
-module load esmf/8_2_0_beta_snapshot_14
diff --git a/modulefiles/gdas2gldas.orion.lua b/modulefiles/gdas2gldas.orion.lua
new file mode 100644
index 0000000..956778d
--- /dev/null
+++ b/modulefiles/gdas2gldas.orion.lua
@@ -0,0 +1,33 @@
+help([[
+Load environment to run GLDAS on Orion
+]])
+
+prepend_path("MODULEPATH", "/apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "2018.4"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+sp_ver=os.getenv("sp_ver") or "2.3.3"
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("nemsio", nemsio_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("sp", sp_ver))
+
+hdf5_ver=os.getenv("hdf5_ver") or "1.10.6"
+netcdf_ver=os.getenv("netcdf_ver") or "4.7.4"
+esmf_ver=os.getenv("esmf_ver") or "8_2_0"
+
+load(pathJoin("hdf5", hdf5_ver))
+load(pathJoin("netcdf", netcdf_ver))
+load(pathJoin("esmf", esmf_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas2gdas.hera b/modulefiles/gldas2gdas.hera
deleted file mode 100644
index 4e87c2f..0000000
--- a/modulefiles/gldas2gdas.hera
+++ /dev/null
@@ -1,17 +0,0 @@
-#%Module#####################################################
-## Build module for hera
-#############################################################
-
-module use /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/18.0.5.274
-module load hpc-impi/2018.0.4
-
-module load w3nco/2.4.1
-module load nemsio/2.5.2
-module load bacio/2.4.1
-module load sp/2.3.3 
- 
-module load netcdf/4.7.4
-module load hdf5/1.10.6
-module load esmf/8_1_1
diff --git a/modulefiles/gldas2gdas.hera.lua b/modulefiles/gldas2gdas.hera.lua
new file mode 100644
index 0000000..656a882
--- /dev/null
+++ b/modulefiles/gldas2gdas.hera.lua
@@ -0,0 +1,33 @@
+help([[
+Load environment to run GLDAS on Hera
+]])
+
+prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "18.0.5.274"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.0.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+sp_ver=os.getenv("sp_ver") or "2.3.3"
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("nemsio", nemsio_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("sp", sp_ver))
+
+hdf5_ver=os.getenv("hdf5_ver") or "1.10.6"
+netcdf_ver=os.getenv("netcdf_ver") or "4.7.4"
+esmf_ver=os.getenv("esmf_ver") or "8_2_0"
+
+load(pathJoin("hdf5", hdf5_ver))
+load(pathJoin("netcdf", netcdf_ver))
+load(pathJoin("esmf", esmf_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas2gdas.orion b/modulefiles/gldas2gdas.orion
deleted file mode 100644
index ee5d164..0000000
--- a/modulefiles/gldas2gdas.orion
+++ /dev/null
@@ -1,16 +0,0 @@
-#%Module#####################################################
-### Build module for orion
-##############################################################
- 
-module use /apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/2018.4
-module load hpc-impi/2018.4
-
-module load w3nco/2.4.1
-module load nemsio/2.5.2
-module load bacio/2.4.1
-module load sp/2.3.3
-
-module load netcdf/4.7.4
-module load esmf/8_2_0_beta_snapshot_14
diff --git a/modulefiles/gldas2gdas.orion.lua b/modulefiles/gldas2gdas.orion.lua
new file mode 100644
index 0000000..956778d
--- /dev/null
+++ b/modulefiles/gldas2gdas.orion.lua
@@ -0,0 +1,33 @@
+help([[
+Load environment to run GLDAS on Orion
+]])
+
+prepend_path("MODULEPATH", "/apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "2018.4"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+sp_ver=os.getenv("sp_ver") or "2.3.3"
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("nemsio", nemsio_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("sp", sp_ver))
+
+hdf5_ver=os.getenv("hdf5_ver") or "1.10.6"
+netcdf_ver=os.getenv("netcdf_ver") or "4.7.4"
+esmf_ver=os.getenv("esmf_ver") or "8_2_0"
+
+load(pathJoin("hdf5", hdf5_ver))
+load(pathJoin("netcdf", netcdf_ver))
+load(pathJoin("esmf", esmf_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_forcing.hera b/modulefiles/gldas_forcing.hera
deleted file mode 100644
index 62d8c0c..0000000
--- a/modulefiles/gldas_forcing.hera
+++ /dev/null
@@ -1,10 +0,0 @@
-#%Module#####################################################
-## Build module for hera
-#############################################################
-
-module use /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/18.0.5.274
-
-module load w3nco/2.4.1
-module load bacio/2.4.1
diff --git a/modulefiles/gldas_forcing.hera.lua b/modulefiles/gldas_forcing.hera.lua
new file mode 100644
index 0000000..87f0bf0
--- /dev/null
+++ b/modulefiles/gldas_forcing.hera.lua
@@ -0,0 +1,18 @@
+help([[
+Load environment to run GLDAS on Hera
+]])
+
+prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "18.0.5.274"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_forcing.orion b/modulefiles/gldas_forcing.orion
deleted file mode 100644
index 8756a9f..0000000
--- a/modulefiles/gldas_forcing.orion
+++ /dev/null
@@ -1,10 +0,0 @@
-#%Module#####################################################
-## Build module for orion
-#############################################################
-
-module use /apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/2018.4
-
-module load w3nco/2.4.1
-module load bacio/2.4.1
diff --git a/modulefiles/gldas_forcing.orion.lua b/modulefiles/gldas_forcing.orion.lua
new file mode 100644
index 0000000..e925109
--- /dev/null
+++ b/modulefiles/gldas_forcing.orion.lua
@@ -0,0 +1,18 @@
+help([[
+Load environment to run GLDAS on Orion
+]])
+
+prepend_path("MODULEPATH", "/apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "2018.4"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_model.hera b/modulefiles/gldas_model.hera
deleted file mode 100644
index cac8c3b..0000000
--- a/modulefiles/gldas_model.hera
+++ /dev/null
@@ -1,14 +0,0 @@
-#%Module#####################################################
-## Build module for Hera
-#############################################################
-
-module use /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/18.0.5.274
-module load hpc-impi/2018.0.4
-
-module load w3emc/2.7.3
-module load w3nco/2.4.1
-module load bacio/2.4.1
-module load sp/2.3.3
-module load ip/3.3.3
diff --git a/modulefiles/gldas_model.hera.lua b/modulefiles/gldas_model.hera.lua
new file mode 100644
index 0000000..aa47661
--- /dev/null
+++ b/modulefiles/gldas_model.hera.lua
@@ -0,0 +1,27 @@
+help([[
+Load environment to run GLDAS on Hera
+]])
+
+prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "18.0.5.274"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.0.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3emc_ver=os.getenv("w3emc_ver") or "2.7.3"
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+sp_ver=os.getenv("sp_ver") or "2.3.3"
+ip_ver=os.getenv("ip_ver") or "3.3.3"
+load(pathJoin("w3emc", w3emc_ver))
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("sp", sp_ver))
+load(pathJoin("ip", ip_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_model.orion b/modulefiles/gldas_model.orion
deleted file mode 100644
index 548e06c..0000000
--- a/modulefiles/gldas_model.orion
+++ /dev/null
@@ -1,13 +0,0 @@
-#%Module#####################################################
-## Build module for orion
-#############################################################
-
-module use /apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/2018.4
-module load hpc-impi/2018.4
-
-module load w3nco/2.4.1
-module load bacio/2.4.1
-module load sp/2.3.3
-module load ip/3.3.3
diff --git a/modulefiles/gldas_model.orion.lua b/modulefiles/gldas_model.orion.lua
new file mode 100644
index 0000000..b241828
--- /dev/null
+++ b/modulefiles/gldas_model.orion.lua
@@ -0,0 +1,27 @@
+help([[
+Load environment to run GLDAS on Orion
+]])
+
+prepend_path("MODULEPATH", "/apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "2018.4"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3emc_ver=os.getenv("w3emc_ver") or "2.7.3"
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+sp_ver=os.getenv("sp_ver") or "2.3.3"
+ip_ver=os.getenv("ip_ver") or "3.3.3"
+load(pathJoin("w3emc", w3emc_ver))
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("sp", sp_ver))
+load(pathJoin("ip", ip_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_post.hera b/modulefiles/gldas_post.hera
deleted file mode 100644
index d8a0be8..0000000
--- a/modulefiles/gldas_post.hera
+++ /dev/null
@@ -1,13 +0,0 @@
-#%Module#####################################################
-## Build module for Hera
-#############################################################
-
-module use /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/18.0.5.274
-module load hpc-impi/2018.0.4
-
-module load w3nco/2.4.1
-module load w3emc/2.7.3
-module load bacio/2.4.1
-module load nemsio/2.5.2
diff --git a/modulefiles/gldas_post.hera.lua b/modulefiles/gldas_post.hera.lua
new file mode 100644
index 0000000..12c997e
--- /dev/null
+++ b/modulefiles/gldas_post.hera.lua
@@ -0,0 +1,25 @@
+help([[
+Load environment to run GLDAS on Hera
+]])
+
+prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "18.0.5.274"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.0.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3emc_ver=os.getenv("w3emc_ver") or "2.7.3"
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+load(pathJoin("w3emc", w3emc_ver))
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("nemsio", nemsio_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_post.orion b/modulefiles/gldas_post.orion
deleted file mode 100644
index d197a76..0000000
--- a/modulefiles/gldas_post.orion
+++ /dev/null
@@ -1,13 +0,0 @@
-#%Module#####################################################
-## Build module for orion
-#############################################################
-
-module use /apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/2018.4
-module load hpc-impi/2018.4
-
-module load w3nco/2.4.1
-module load bacio/2.4.1
-module load nemsio/2.5.2
-
diff --git a/modulefiles/gldas_post.orion.lua b/modulefiles/gldas_post.orion.lua
new file mode 100644
index 0000000..142b155
--- /dev/null
+++ b/modulefiles/gldas_post.orion.lua
@@ -0,0 +1,25 @@
+help([[
+Load environment to run GLDAS on Orion
+]])
+
+prepend_path("MODULEPATH", "/apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "2018.4"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3emc_ver=os.getenv("w3emc_ver") or "2.7.3"
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+load(pathJoin("w3emc", w3emc_ver))
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("nemsio", nemsio_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_rst.hera b/modulefiles/gldas_rst.hera
deleted file mode 100644
index d8a0be8..0000000
--- a/modulefiles/gldas_rst.hera
+++ /dev/null
@@ -1,13 +0,0 @@
-#%Module#####################################################
-## Build module for Hera
-#############################################################
-
-module use /scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/18.0.5.274
-module load hpc-impi/2018.0.4
-
-module load w3nco/2.4.1
-module load w3emc/2.7.3
-module load bacio/2.4.1
-module load nemsio/2.5.2
diff --git a/modulefiles/gldas_rst.hera.lua b/modulefiles/gldas_rst.hera.lua
new file mode 100644
index 0000000..12c997e
--- /dev/null
+++ b/modulefiles/gldas_rst.hera.lua
@@ -0,0 +1,25 @@
+help([[
+Load environment to run GLDAS on Hera
+]])
+
+prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "18.0.5.274"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.0.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3emc_ver=os.getenv("w3emc_ver") or "2.7.3"
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+load(pathJoin("w3emc", w3emc_ver))
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("nemsio", nemsio_ver))
+
+whatis("Description: GLDAS run environment")
diff --git a/modulefiles/gldas_rst.orion b/modulefiles/gldas_rst.orion
deleted file mode 100644
index d69cc5d..0000000
--- a/modulefiles/gldas_rst.orion
+++ /dev/null
@@ -1,12 +0,0 @@
-#%Module#####################################################
-## Build module for orion
-#############################################################
-
-module use /apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack
-module load hpc/1.1.0
-module load hpc-intel/2018.4
-module load hpc-impi/2018.4
-
-module load w3nco/2.4.1
-module load bacio/2.4.1
-module load nemsio/2.5.2
diff --git a/modulefiles/gldas_rst.orion.lua b/modulefiles/gldas_rst.orion.lua
new file mode 100644
index 0000000..142b155
--- /dev/null
+++ b/modulefiles/gldas_rst.orion.lua
@@ -0,0 +1,25 @@
+help([[
+Load environment to run GLDAS on Orion
+]])
+
+prepend_path("MODULEPATH", "/apps/contrib/NCEP/libs/hpc-stack/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+load(pathJoin("hpc", hpc_ver))
+
+hpc_intel_ver=os.getenv("hpc_intel_ver") or "2018.4"
+load(pathJoin("hpc-intel", hpc_intel_ver))
+
+impi_ver=os.getenv("impi_ver") or "2018.4"
+load(pathJoin("hpc-impi", impi_ver))
+
+w3emc_ver=os.getenv("w3emc_ver") or "2.7.3"
+w3nco_ver=os.getenv("w3nco_ver") or "2.4.1"
+bacio_ver=os.getenv("bacio_ver") or "2.4.1"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+load(pathJoin("w3emc", w3emc_ver))
+load(pathJoin("w3nco", w3nco_ver))
+load(pathJoin("bacio", bacio_ver))
+load(pathJoin("nemsio", nemsio_ver))
+
+whatis("Description: GLDAS run environment")