Create app.py

app.py

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+import streamlit as st
+import pandas as pd
+
+# Title and Description
+st.title("SolarEase: Smart Solar System Designer")
+st.markdown("Plan your solar system with ease! Input your appliances and get precise recommendations for solar panels, batteries, and inverters.")
+
+# Sidebar for User Inputs
+st.sidebar.title("Add Appliance Details")
+appliance_name = st.sidebar.text_input("Appliance Name", "LED Bulb")
+wattage = st.sidebar.number_input("Power (Watts)", min_value=1, value=10)
+quantity = st.sidebar.number_input("Quantity", min_value=1, value=1)
+usage_hours = st.sidebar.number_input("Daily Usage Hours", min_value=1, value=1)
+add_appliance = st.sidebar.button("Add Appliance")
+
+# Store Appliance Data
+if "appliances" not in st.session_state:
+    st.session_state["appliances"] = []
+
+if add_appliance:
+    st.session_state["appliances"].append({
+        "Appliance": appliance_name,
+        "Wattage": wattage,
+        "Quantity": quantity,
+        "Usage Hours": usage_hours,
+    })
+
+# Display Appliance Table
+if st.session_state["appliances"]:
+    st.subheader("Appliance Details")
+    df = pd.DataFrame(st.session_state["appliances"])
+    st.table(df)
+
+    # Backend Calculations
+    df["Daily Energy (Wh)"] = df["Wattage"] * df["Quantity"] * df["Usage Hours"]
+    total_energy = df["Daily Energy (Wh)"].sum() / 1000  # Convert to kWh
+    sunlight_hours = st.slider("Average Sunlight Hours", min_value=4, max_value=10, value=6)
+    panel_efficiency = st.slider("Solar Panel Efficiency (%)", min_value=10, max_value=25, value=20) / 100
+    battery_voltage = 12  # Typical battery voltage
+    battery_efficiency = 0.85  # 85% efficiency
+
+    # Solar Panel Calculations
+    total_panel_wattage = total_energy / (sunlight_hours * panel_efficiency)
+    total_battery_capacity = total_energy / (battery_voltage * battery_efficiency)
+    peak_load = df["Wattage"].sum()
+
+    # Display Results
+    st.subheader("Results")
+    st.write(f"**Total Daily Energy Consumption:** {total_energy:.2f} kWh")
+    st.write(f"**Required Solar Panel Capacity:** {total_panel_wattage:.2f} W")
+    st.write(f"**Battery Capacity Needed:** {total_battery_capacity:.2f} Ah")
+    st.write(f"**Recommended Inverter Size:** {peak_load:.2f} W")
+
+    # Optional Cost Estimation (commented for simplicity)
+    # cost_estimation = total_panel_wattage * 0.5  # Example cost formula
+    # st.write(f"**Estimated Cost:** ${cost_estimation:.2f}")
+
+# Footer
+st.markdown("---")
+st.markdown("**Designed by Engr. Muhammad Arsalan**")