Update app.py

app.py

@@ -43,12 +43,26 @@ def build_prompt(location, project_type, roof_size=None, desired_kwh=None, elect
     if project_type == "Rooftop Solar":
         prompt = f"""
 You are a solar project estimator tool. Based on the following details, calculate and return only the values without any extra description:
+
 Project Type: Rooftop Solar
 Location: {location}
 Roof size: {roof_size} sq meters
 Monthly electricity bill: ₹{electricity_bill}
 Average GHI: {ghi} kWh/m²/day
 Solar system cost per kW: ₹{solar_cost_per_kw}
+
+Formulas to be used:
+1. Estimated Solar System Size in kW: 
+   System Size (kW) = Electricity Bill (₹) / Solar Cost per kW (₹)
+2. Estimated Daily Solar Output in kWh: 
+   Daily Output (kWh) = System Size (kW) * Average GHI (kWh/m²/day)
+3. Total System Cost in ₹: 
+   Total Cost (₹) = System Size (kW) * Solar Cost per kW (₹)
+4. Monthly Savings in ₹: 
+   Monthly Savings (₹) = (System Output (kWh) / Monthly Consumption (kWh)) * Electricity Bill (₹)
+5. Payback Period in Years: 
+   Payback Period (Years) = Total System Cost (₹) / Annual Savings (₹), where Annual Savings (₹) = Monthly Savings (₹) * 12
+
 Respond strictly in this format (do not add anything extra):
 Estimated solar system size in kW: <value>
 Estimated daily solar output in kWh: <value>
@@ -59,12 +73,26 @@ Payback period in years: <value>
     else:  # Ground Mount Solar
         prompt = f"""
 You are a solar project estimator tool. Based on the following details, calculate and return only the values without any extra description:
+
 Project Type: Ground Mount Solar
 Location: {location}
 Desired monthly solar production: {desired_kwh} kWh
 Monthly electricity bill: ₹{electricity_bill}
 Average GHI: {ghi} kWh/m²/day
 Solar system cost per kW: ₹{solar_cost_per_kw}
+
+Formulas to be used:
+1. Required Solar System Size in kW: 
+   Required System Size (kW) = Desired Monthly Production (kWh) / (30 * Average Solar Output per Day (kWh/m²/day))
+2. Estimated Daily Solar Output in kWh: 
+   Daily Output (kWh) = System Size (kW) * Average GHI (kWh/m²/day)
+3. Total System Cost in ₹: 
+   Total Cost (₹) = System Size (kW) * Solar Cost per kW (₹)
+4. Monthly Savings in ₹: 
+   Monthly Savings (₹) = (System Output (kWh) / Monthly Consumption (kWh)) * Electricity Bill (₹)
+5. Payback Period in Years: 
+   Payback Period (Years) = Total System Cost (₹) / Annual Savings (₹), where Annual Savings (₹) = Monthly Savings (₹) * 12
+
 Respond strictly in this format (do not add anything extra):
 Required solar system size in kW: <value>
 Estimated daily solar output in kWh: <value>