diff --git a/reg_tests/grid_gen/driver.orion.sh b/reg_tests/grid_gen/driver.orion.sh
index 6e128f1df..01c812af4 100755
--- a/reg_tests/grid_gen/driver.orion.sh
+++ b/reg_tests/grid_gen/driver.orion.sh
@@ -56,18 +56,25 @@ TEST1=$(sbatch --parsable --ntasks-per-node=24 --nodes=1 -t 0:15:00 -A $PROJECT_
       -o $LOG_FILE -e $LOG_FILE ./c96.uniform.sh)
 
 #-----------------------------------------------------------------------------
-# C96 regional grid
+# GFDL regional grid
 #-----------------------------------------------------------------------------
 
 TEST2=$(sbatch --parsable --ntasks-per-node=24 --nodes=1 -t 0:10:00 -A $PROJECT_CODE -q $QUEUE -J gfdl.regional \
       --open-mode=append -o $LOG_FILE -e $LOG_FILE -d afterok:$TEST1 ./gfdl.regional.sh)
 
+#-----------------------------------------------------------------------------
+# ESG regional grid
+#-----------------------------------------------------------------------------
+
+TEST3=$(sbatch --parsable --ntasks-per-node=24 --nodes=1 -t 0:10:00 -A $PROJECT_CODE -q $QUEUE -J esg.regional \
+      --open-mode=append -o $LOG_FILE -e $LOG_FILE -d afterok:$TEST2 ./esg.regional.sh)
+
 #-----------------------------------------------------------------------------
 # Create summary log.
 #-----------------------------------------------------------------------------
 
 sbatch --nodes=1 -t 0:01:00 -A $PROJECT_CODE -J grid_summary -o $LOG_FILE -e $LOG_FILE \
-       --open-mode=append -q $QUEUE -d afterok:$TEST2 << EOF
+       --open-mode=append -q $QUEUE -d afterok:$TEST3 << EOF
 #!/bin/bash
 grep -a '<<<' $LOG_FILE  > $SUM_FILE
 EOF