Update app.py

app.py

@@ -4,6 +4,11 @@ import google.generativeai as genai
 import os
 from dotenv import load_dotenv
 
+import streamlit as st
+import pandas as pd
+import os
+from dotenv import load_dotenv
+
 # Load environment variables
 load_dotenv()
 
@@ -23,14 +28,13 @@ TARIFF_RATE = 7  # ₹7 per kWh
 ROOFTOP_CONVERSION_FACTOR = 0.10  # 0.10 kW per sq meter
 
 # UI - Form
-st.title("☀️AI-Based Solar Project Estimation Tool")
+st.title("☀️ AI-Based Solar Project Estimation Tool")
 st.write("### Enter Your Details Below:")
 
 with st.form("solar_form"):
     state_options = df['State'].dropna().unique()
     location = st.selectbox("Select your State", options=sorted(state_options))
     
-    # Fixed line: showing only bolded "Rooftop Solar" heading
     st.markdown("### **Rooftop Solar**")
 
     roof_size = st.number_input("Enter your roof size (in sq meters)", min_value=1)
@@ -38,7 +42,7 @@ with st.form("solar_form"):
 
     submitted = st.form_submit_button("Get Estimate")
 
-# Calculate directly
+# Calculate estimates
 if submitted and location:
     state_data = df[df['State'].str.contains(location, case=False)].iloc[0]
 
@@ -46,25 +50,37 @@ if submitted and location:
         ghi = state_data['Avg_GHI (kWh/m²/day)']
         solar_cost_per_kw = state_data['Solar_Cost_per_kW (₹)']
 
+        # Calculations
         system_size_kw = round(roof_size * ROOFTOP_CONVERSION_FACTOR, 2)
         estimated_daily_output = round(system_size_kw * ghi, 2)
 
         total_system_cost = round(system_size_kw * solar_cost_per_kw, 2)
-        monthly_savings = round(estimated_daily_output * 30 * TARIFF_RATE, 2)
+        monthly_solar_generation = round(estimated_daily_output * 30, 2)
+        monthly_savings = round(monthly_solar_generation * TARIFF_RATE, 2)
         payback_period = round(total_system_cost / (monthly_savings * 12), 2)
 
+        # Calculate Bill Offset
+        if electricity_bill > 0:
+            bill_offset_percentage = round((monthly_savings / electricity_bill) * 100, 2)
+        else:
+            bill_offset_percentage = None
+
         # Display Results
         st.subheader("🔹 Solar Project Estimate")
-        st.write(f"**Estimated solar system size in kW**: {system_size_kw}")
-        st.write(f"**Estimated daily solar output in kWh**: {estimated_daily_output}")
-        st.write(f"**Total system cost in ₹**: {total_system_cost}")
-        st.write(f"**Monthly savings in ₹**: {monthly_savings}")
-        st.write(f"**Payback period in years**: {payback_period}")
+        st.write(f"**Estimated solar system size (kW)**: {system_size_kw}")
+        st.write(f"**Estimated daily solar output (kWh/day)**: {estimated_daily_output}")
+        st.write(f"**Estimated monthly solar generation (kWh/month)**: {monthly_solar_generation}")
+        st.write(f"**Total system cost (₹)**: {total_system_cost}")
+        st.write(f"**Monthly savings from solar (₹)**: {monthly_savings}")
+        st.write(f"**Payback period (years)**: {payback_period}")
+
+        # Display Bill Offset if entered
+        if bill_offset_percentage is not None:
+            st.write(f"**Solar will offset approximately {bill_offset_percentage}% of your monthly electricity bill.**")
 
-        
         st.info("Note: Tariff assumed ₹7/kWh. Actual payback may vary based on location, grid policy, and maintenance.")
 
     else:
         st.error("State data not found. Please try a valid state.")
 else:
-    st.warning("Please complete all fields to get your estimate.")
+    st.warning("Please complete all fields to get your estimate.")