1. What is the Electricity Bill Calculation?

The electricity bill in Sri Lanka is calculated using a tiered tariff system where different rates apply to different consumption slabs. The total bill includes a fixed charge, energy charges based on consumption slabs, and applicable taxes.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• Fixed Charge — Base fee depending on customer type
• Consumption in Slab — kWh used within each tariff slab
• Rate per Slab — Price per kWh for each consumption tier
• Taxes — 17.5% (15% VAT + 2.5% other charges)

3. Understanding Sri Lanka's Electricity Tariffs

Details: Sri Lanka uses different tariff structures for domestic, religious, and general purpose customers. Domestic tariffs have more progressive slabs to provide lower rates for basic needs.

4. Using the Calculator

Tips: Enter your monthly electricity consumption in kWh and select your customer type. The calculator will show the estimated bill including all charges and taxes.

5. Frequently Asked Questions (FAQ)

Q1: How often are tariff rates updated?
A: Tariff rates are typically revised every 6-12 months by the Public Utilities Commission of Sri Lanka.

Q2: Are there different rates for different times of day?
A: Currently, Sri Lanka uses flat rates regardless of time of consumption.

Q3: How can I reduce my electricity bill?
A: Consider energy-efficient appliances, LED lighting, and reducing usage during peak hours.

Q4: Are there any subsidies for low-income households?
A: Yes, special tariffs apply for low consumption domestic users (below 30 kWh/month).

Q5: How accurate is this calculator?
A: This provides an estimate based on standard tariffs. Your actual bill may vary slightly due to rounding and specific utility policies.