#Electricity Bill Calculator (Sri Lanka Tariff 2023)
#📌 Project Overview This Python program calculates the total electricity bill for Sri Lankan consumers based on the CEB tariff structure effective from October 2023. It takes monthly unit consumption and previous dues as input, then applies the correct progressive block rates and fixed charges to determine the final payable amount.
#🎯 **Created for A/L project 2023/2024 (ICT).
Real-World Application: Demonstrates understanding of tariff structures, conditional logic, and user input handling in Python.
#🧮 Tariff Structure Implemented The program uses the following block rates (as per the 2023 CEB tariff):
Consumption Block (Units) Unit Price (LKR) Fixed Charge (LKR) 0 - 30 10.00 150.00 31 - 60 25.00 300.00 0 - 60 (Special) 32.00 300.00 61 - 90 38.00 400.00 91 - 120 50.00 1000.00 121 - 180 50.00 1500.00 181+ 75.00 2000.00 Note: The program uses the "Special" block for exactly 60 units (32.00 LKR/unit).
#⚙️ How It Works Input Phase: Previous month's meter reading Current month's meter reading Any outstanding dues (CR)
Processing: Calculates consumed units (Current - Previous) Validates input (no negative units allowed) Applies appropriate block rate based on consumption Adds fixed charges based on the consumption tier
Output: Units consumed Applicable unit price Previous dues Fixed charges Total payment (including all components)
#🖥️ Sample Output text Welcome to Electricity bill calculator.Please provide the data correctly. This program will provide the Total payment with fixed charges included. Enter the previous Units : 450 Enter the current month Units: 520 Enter previous dues (if any): LKR 0
#🔧 Requirements Language: Python 3.x
Libraries Used: itertools, tkinter (imported but not actively used in this version)
#💻 How to Run Save the code as ElectricityCalculator.py Open terminal/command prompt Run: bash python ElectricityCalculator.py Follow the prompts to enter meter readings and dues.
#📊 Key Concepts Applied Conditional Logic: if-elif-else statements for tier-based calculations User Input: input() for data collection with float() conversion Mathematical Operations: Basic arithmetic for bill computation String Formatting: f-strings and .center() for clean output formatting Error Handling: Basic validation for negative units
👨💻 Author Arosha Silva/Gamerlaza 2024 A/L Python Project#1
#📚 References Public Utilities Commission of Sri Lanka (PUCSL) - Official tariff announcement
🏷️ Tags #python #electricity-bill #ceb-tariff #sri-lanka #tariff-calculator #education #2024A/L