Update app.py

app.py

@@ -6,6 +6,9 @@ st.title("Complete Solar Energy Calculator")
 # Input Section: User inputs for energy usage, costs, etc.
 st.header("Enter your energy usage and system parameters:")
 
+# Currency selection
+currency = st.selectbox("Select your currency:", ["USD", "EUR", "INR", "GBP", "AUD", "CAD", "JPY", "Other"])
+
 # Average Monthly Usage in kWh
 monthly_usage = st.number_input("Enter your average monthly energy usage (kWh):", min_value=0.0)
 
@@ -18,15 +21,20 @@ solar_panel_efficiency = st.number_input("Enter the efficiency of your solar pan
 # Panel Output in Watts (W)
 panel_output_watts = st.number_input("Enter the solar panel output (in watts, W):", min_value=0)
 
-# Inverter Cost (per inverter)
-inverter_cost = st.number_input("Enter the cost of the inverter (in your local currency):", min_value=0.0)
-
-# Cost per Solar Panel
-panel_cost = st.number_input("Enter the cost per solar panel (in your local currency):", min_value=0.0)
-
 # Average Sunlight Hours per Day
 sunlight_hours = st.number_input("Enter the average sunlight hours per day:", min_value=0.0)
 
+# Calculate Inverter Capacity based on Peak Demand
+if peak_demand > 0:
+    inverter_capacity = peak_demand * 1.2  # Inverter capacity should be around 1.2 times the peak demand for efficiency
+    st.write(f"Recommended Inverter Capacity: {inverter_capacity:.2f} kW (1.2 times peak demand)")
+
+# Inverter Cost (user input)
+inverter_cost = st.number_input(f"Enter the cost of the inverter (in {currency}):", min_value=0.0)
+
+# Cost per Solar Panel
+panel_cost = st.number_input(f"Enter the cost per solar panel (in {currency}):", min_value=0.0)
+
 # Calculations Section
 if panel_output_watts > 0 and sunlight_hours > 0:
     # Determine Annual Energy Consumption (in kWh)
@@ -41,9 +49,6 @@ if panel_output_watts > 0 and sunlight_hours > 0:
     # Calculate the number of panels required
     num_panels_required = daily_energy_requirement / solar_panel_output_kwh
 
-    # Inverter Capacity (based on peak demand)
-    inverter_capacity = peak_demand * 1.2  # Inverter capacity should be around 1.2 times the peak demand for efficiency
-
     # Cost Calculations
     total_solar_cost = num_panels_required * panel_cost
     total_inverter_cost = inverter_cost
@@ -52,7 +57,8 @@ if panel_output_watts > 0 and sunlight_hours > 0:
     total_installation_cost = total_solar_cost + total_inverter_cost
 
     # Payback Period Calculation
-    annual_savings = annual_energy_consumption * (cost_per_kwh := st.number_input("Enter the cost per kWh of electricity:", min_value=0.0))
+    cost_per_kwh = st.number_input(f"Enter the cost per kWh of electricity (in {currency}):", min_value=0.0)
+    annual_savings = annual_energy_consumption * cost_per_kwh
     payback_period = total_installation_cost / annual_savings if annual_savings > 0 else float('inf')
 
     # Display Results
@@ -63,9 +69,9 @@ if panel_output_watts > 0 and sunlight_hours > 0:
     st.subheader(f"Solar Panel Output per day: {solar_panel_output_kwh:.2f} kWh")
     st.subheader(f"Number of Panels Required: {num_panels_required:.2f} panels")
     st.subheader(f"Inverter Capacity Required: {inverter_capacity:.2f} kW")
-    st.subheader(f"Total Solar Panel Cost: {total_solar_cost:.2f} local currency")
-    st.subheader(f"Total Inverter Cost: {total_inverter_cost:.2f} local currency")
-    st.subheader(f"Total Installation Cost: {total_installation_cost:.2f} local currency")
+    st.subheader(f"Total Solar Panel Cost: {total_solar_cost:.2f} {currency}")
+    st.subheader(f"Total Inverter Cost: {total_inverter_cost:.2f} {currency}")
+    st.subheader(f"Total Installation Cost: {total_installation_cost:.2f} {currency}")
     st.subheader(f"Payback Period: {payback_period:.2f} years")
 
 else: