This project was developed in my first semester to simulate an electricity billing system inspired by Japan’s energy regulation model. The calculator considers region, institution type, energy slabs, and government-imposed surcharges/rebates to compute the final bill. For more details, read the document attached here.
- Parses a Universal Identification (UI) number like
221-12345-A- Region Code (e.g., 221 for Tokyo)
- Meter Number
- Institution Type (e.g., A = 1DK1R Residential)
- Calculates electricity bills based on:
- Base energy consumption slab
- Institution-specific rate
- Renewable energy surcharge (1.0005%)
- Government rebate (2.43%)
| Consumption (kWh) | Rate (JPY/kWh) |
|---|---|
| 0–120 | 20.21 |
| 121–300 | 25.61 |
| >300 | 28.59 |
| Code | Institution | Fee (JPY/kWh) |
|---|---|---|
| A | 1DK1R | 1.10 |
| B | 1DK2R | 1.20 |
| C | Industry Level-1 | 1.60 |
| D | Industry Level-2 | 1.80 |
| E | Commercial & Office | 2.00 |
| F | Temporary | 1.50 |
- Renewable Energy Surcharge:
Basic amount * 0.010005 - Government Rebate:
Total charge * 0.0243
- Language: C
- Platform: Command Line (CLI)
Shafayat Yeamin Jian
B.Sc in Computer Science and Engineering
This project is free to use for anyone — feel free to use it
# Compile the program
gcc electricity_bill_calculator.c -o bill
# Run the program
./bill