The CESC Electricity Bill Calculator is an online tool designed to help electricity consumers estimate their monthly power bill. It is intended for eligible CESC consumers across Kolkata, Howrah, Hooghly, North 24 Parganas, South 24 Parganas, and other covered parts of the Kolkata metropolitan region.
Using the supplied WBERC FY 2026–27 tariff information, the calculator supports CESC Domestic, Non-Domestic Commercial, and EV Charging Station connections. It calculates slab-wise energy charges, fixed monthly or load-based demand charges, Fuel Price and Power Purchase Cost Adjustment, 6% Electricity Duty, and the estimated net payable amount.
CESC generally follows a monthly billing structure under the supplied calculator configuration. This differs from tools configured for WBSEDCL consumers, where multi-month or quarterly billing logic may apply. Selecting a dedicated CESC calculator helps prevent monthly tariff slabs from being incorrectly scaled.
What Is the CESC Electricity Bill Calculator?
The calculator prepares an estimated monthly electricity bill using:
- Selected consumer category
- Total monthly electricity consumption in kWh
- Sanctioned or connected load in kW
- Applicable Domestic or Non-Domestic tariff
- Fixed monthly or demand charge
- FPPCA at the configured per-unit rate
- Configured 6% Electricity Duty
After completing the calculation, the tool displays an itemized report containing the basic energy charge, fixed charge, FPPCA, Electricity Duty, and estimated payable amount. Consumers may also print or download the detailed report.
CESC Domestic Electricity Tariff Slabs
| Monthly Consumption | Energy Rate | Fixed Charge |
|---|---|---|
| 0–25 units | ₹5.20 per unit | ₹50/month |
| 26–60 units | ₹5.90 per unit | ₹50/month |
| 61–100 units | ₹6.75 per unit | ₹50/month |
| 101–150 units | ₹7.40 per unit | ₹50/month |
| 151–300 units | ₹7.50 per unit | ₹50/month |
| Above 300 units | ₹9.15 per unit | ₹50/month |
The Domestic tariff is telescopic. This means that the complete consumption is not multiplied by the highest tariff rate reached. Each portion of electricity usage is charged according to the slab in which it falls.
Example: Domestic Consumer Using 220 Units
Suppose a CESC Domestic consumer uses 220 units during one monthly billing period.
- First 25 units: 25 × ₹5.20 = ₹130
- Next 35 units: 35 × ₹5.90 = ₹206.50
- Next 40 units: 40 × ₹6.75 = ₹270
- Next 50 units: 50 × ₹7.40 = ₹370
- Remaining 70 units: 70 × ₹7.50 = ₹525
- Total energy charge: ₹1,501.50
- Fixed monthly charge: ₹50
- FPPCA: 220 × ₹0.45 = ₹99
The subtotal before Electricity Duty is ₹1,650.50. When the configured 6% duty is illustratively applied to this subtotal, the duty becomes ₹99.03.
Illustrative estimated bill: ₹1,749.53
The official Electricity Duty base should be checked on the actual CESC bill because statutory treatment may apply to selected billing components.
FPPCA in a CESC Electricity Bill
FPPCA means Fuel Price and Power Purchase Cost Adjustment. Under the supplied configuration, it is calculated at ₹0.45 per applicable billed unit.
- 100 units: ₹45
- 220 units: ₹99
- 500 units: ₹225
FPPCA is displayed separately from the basic energy tariff because the official adjustment rate may change through regulatory or power-purchase-cost revisions.
Commercial Non-Domestic Tariff
The supplied Commercial tariff may apply to eligible shops, offices, hotels, restaurants, clinics, showrooms, warehouses, and other non-domestic premises.
- Energy charge: ₹8.95 per unit
- Fixed demand charge: ₹150 per kW per month
- FPPCA: ₹0.45 per applicable unit
- Electricity Duty: 6%
Example: Commercial Consumer Using 400 Units
For a Commercial connection using 400 units with a sanctioned load of 5 kW:
- Energy charge: 400 × ₹8.95 = ₹3,580
- Fixed demand charge: 5 × ₹150 = ₹750
- FPPCA: 400 × ₹0.45 = ₹180
- Subtotal before duty: ₹4,510
- Illustrative 6% duty: ₹270.60
- Illustrative estimated bill: ₹4,780.60
EV Charging Station Tariff
- Energy charge: ₹7.15 per unit
- Fixed charge: ₹0
- FPPCA: ₹0.45 per applicable unit
- Billing cycle: Monthly
An EV charging station using 300 units receives a basic energy charge of ₹2,145 and FPPCA of ₹135. Electricity Duty and other applicable components are then calculated according to the configured rules.
How to Use the CESC Electricity Bill Calculator
Step 1: Select CESC Domestic, Commercial Non-Domestic, or EV Charging.
Step 2: Enter the complete electricity units recorded during the monthly billing cycle.
Step 3: Enter sanctioned load in kW, especially for Commercial demand-charge calculations.
Step 4: Click Calculate Bill to view energy charges, fixed charges, FPPCA, Electricity Duty, and the estimated net payable amount.
Why This Calculator Is Useful
- Uses dedicated CESC monthly billing logic.
- Calculates Domestic consumption through six telescopic slabs.
- Adds the supplied ₹50 Domestic fixed charge.
- Supports Commercial and EV Charging categories.
- Calculates ₹0.45-per-unit FPPCA separately.
- Shows the configured 6% Electricity Duty transparently.
- Provides an itemized printable and downloadable report.
Frequently Asked Questions
Does CESC use monthly billing in this calculator?
Yes. The supplied calculator configuration follows a one-month billing cycle.
Is the Domestic tariff telescopic?
Yes. Consumption is distributed across six tariff slabs instead of applying the highest rate to every unit.
What is the Domestic fixed charge?
The supplied Domestic fixed monthly charge is ₹50.
What is the Commercial energy rate?
The supplied Non-Domestic Commercial rate is ₹8.95 per unit, with a ₹150-per-kW monthly demand charge.
Does the calculator support Kolkata and Howrah?
Yes. It is intended for eligible CESC consumers in Kolkata, Howrah, and other covered metropolitan service areas.
Why can the official bill differ?
The official bill may include arrears, delayed payment surcharge, revised FPPCA, meter charges, penalties, security-deposit adjustments, or rounding differences.
