update variable name

main.py

@@ -1 +1,21 @@
 import matplotlib
+import pandas as pd
+from EnergySystem import EnergySystem
+from config import pv_config, grid_config, ess_config
+
+
+if __name__ == '__main__':
+    price_schedule = pd.read_csv('price_schedule.csv')
+    data = pd.read_csv('simulation_data.csv')
+
+
+    pv = pv_config(capacity=100000,cost_per_kW=200,lifetime=25,loss=0.95)
+    ess = ess_config(capacity=100000,cost_per_kW=300,lifetime=25,loss=0.95,charge_power=100000,discharge_power=100000)
+    grid = grid_config(price_schedule=price_schedule, capacity=5000, grid_loss=0.95, sell_price=0.4)
+
+    energy_system = EnergySystem(pv_type=pv, ess_type=ess, grid_type=grid)
+
+    time_interval = 15 / 60
+    benefit = energy_system.simulate(data=data, time_interval=time_interval)
+
+    print(benefit)