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| import streamlit as st | |
| # Title of the app | |
| st.title("Solar Energy Calculator") | |
| # Input Section: User inputs for energy usage, costs, etc. | |
| st.header("Input your energy usage and system parameters:") | |
| # Average Monthly Usage in kWh | |
| monthly_usage = st.number_input("Enter your average monthly energy usage (kWh):", min_value=0.0) | |
| # Peak Demand | |
| peak_demand = st.number_input("Enter your peak demand (kW):", min_value=0.0) | |
| # Solar Panel Efficiency | |
| solar_panel_efficiency = st.number_input("Enter the efficiency of your solar panels (0 to 100):", min_value=0.0, max_value=100.0) | |
| # Cost of electricity per kWh (user input or fixed) | |
| cost_per_kwh = st.number_input("Enter the cost per kWh (in your local currency):", min_value=0.0) | |
| # Solar panel cost (in local currency per panel or total cost) | |
| solar_panel_cost = st.number_input("Enter the cost of installing solar panels (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) | |
| # Solar Panel Output | |
| solar_panel_output = st.number_input("Enter the solar panel output (in watts, W):", min_value=0) | |
| # Avoid ZeroDivisionError by checking input values | |
| if solar_panel_output > 0 and sunlight_hours > 0: | |
| # Calculations | |
| # Determine Annual Energy Consumption (in kWh) | |
| annual_energy_consumption = monthly_usage * 12 | |
| # Calculate Daily Energy Requirement (in kWh) | |
| daily_energy_requirement = annual_energy_consumption / 365 | |
| # Solar Panel Output in kWh (daily) | |
| solar_panel_output_kwh = (solar_panel_output / 1000) * sunlight_hours # Convert from watts to kWh | |
| # Calculate number of solar panels required to meet daily energy requirement | |
| num_panels_required = daily_energy_requirement / solar_panel_output_kwh | |
| # Cost Calculations | |
| total_solar_cost = num_panels_required * solar_panel_cost | |
| # Payback Period (years) | |
| annual_savings = annual_energy_consumption * cost_per_kwh | |
| payback_period = total_solar_cost / annual_savings | |
| # Output Section: Display results | |
| st.header("Results:") | |
| # Display annual energy consumption | |
| st.subheader(f"Annual Energy Consumption: {annual_energy_consumption:.2f} kWh") | |
| # Display daily energy requirement | |
| st.subheader(f"Daily Energy Requirement: {daily_energy_requirement:.2f} kWh") | |
| # Display solar panel output | |
| st.subheader(f"Solar Panel Output per day: {solar_panel_output_kwh:.2f} kWh") | |
| # Display number of panels required | |
| st.subheader(f"Number of Solar Panels Required: {num_panels_required:.2f} panels") | |
| # Display total solar system cost | |
| st.subheader(f"Total Solar Panel Installation Cost: {total_solar_cost:.2f} local currency") | |
| # Display payback period | |
| st.subheader(f"Payback Period: {payback_period:.2f} years") | |
| else: | |
| st.warning("Please ensure that both solar panel output and sunlight hours are greater than 0.") | |
| # Show tips for improving the app or using it effectively | |
| st.markdown(""" | |
| - Make sure to input accurate data to get the most reliable results. | |
| - You can adjust the efficiency, cost, and solar panel output to simulate different scenarios. | |
| - The payback period assumes the energy savings are constant each year. | |
| """) | |