diff --git a/gtep/driver.py b/gtep/driver.py
index c50e7e9..8137df4 100644
--- a/gtep/driver.py
+++ b/gtep/driver.py
@@ -4,10 +4,9 @@
 from pyomo.core import TransformationFactory
 from pyomo.contrib.appsi.solvers.highs import Highs
 from pyomo.contrib.appsi.solvers.gurobi import Gurobi
+import gurobipy as gp
 
-
-
-data_path = "./data/5bus"
+data_path = "./gtep/data/5bus"
 data_object = ExpansionPlanningData()
 data_object.load_prescient(data_path)
 
@@ -23,8 +22,8 @@
 TransformationFactory("gdp.bound_pretransformation").apply_to(mod_object.model) 
 TransformationFactory("gdp.bigm").apply_to(mod_object.model) 
 # opt = SolverFactory("gurobi")
-opt = Gurobi()
-# opt = Highs()
+# opt = Gurobi()
+opt = Highs()
 # # mod_object.results = opt.solve(mod_object.model, tee=True)
 mod_object.results = opt.solve(mod_object.model) 
 
diff --git a/gtep/tests/unit/test_validation.py b/gtep/tests/unit/test_validation.py
new file mode 100644
index 0000000..cd469c2
--- /dev/null
+++ b/gtep/tests/unit/test_validation.py
@@ -0,0 +1,20 @@
+import pyomo.common.unittest as unittest
+from gtep.gtep_model import ExpansionPlanningModel
+from gtep.gtep_data import ExpansionPlanningData
+from gtep.gtep_solution import ExpansionPlanningSolution
+import logging
+
+input_data_source = "./gtep/data/5bus"
+
+class TestValidation(unittest.TestCase):
+    def test_populate_generators(self):
+        pass
+
+    def test_populate_transmission(self):
+        pass
+
+    def test_filter_pointers(self):
+        pass
+
+    def test_clone_timeseries(self):
+        pass
\ No newline at end of file
diff --git a/gtep/validation.py b/gtep/validation.py
new file mode 100644
index 0000000..6f13ee3
--- /dev/null
+++ b/gtep/validation.py
@@ -0,0 +1,19 @@
+from pyomo.environ import *
+from gtep.gtep_model import ExpansionPlanningModel
+import logging
+
+import pandas as pd
+
+logger = logging.getLogger(__name__)
+
+def populate_generators(data_input_path, sol_object, data_output_path):
+    pass
+
+def populate_transmission(data_input_path, sol_object, data_output_path):
+    pass
+
+def filter_pointers(data_input_path, sol_object, data_output_path):
+    pass
+
+def clone_timeseries(data_input_path, sol_object, data_output_path):
+    pass
\ No newline at end of file