The Sikkim Electricity Bill Calculator is an online tool designed to help electricity consumers estimate their monthly power bill. It supports eligible consumers served by the Energy and Power Department of Sikkim across Gangtok, Namchi, Geyzing, Mangan, Pakyong, and other covered areas.
- What Is the Sikkim Electricity Bill Calculator?
- Sikkim Domestic Electricity Tariff
- Commercial Non-Domestic Tariff
- Small Industrial Power Tariff
- EV Charging Station Tariff
- How to Use the Sikkim Electricity Bill Calculator
- Why This Calculator Is Useful
- Frequently Asked Questions
- Meta Information
- Featured Image Prompt
Using the supplied FY 2026–27 tariff information, the calculator supports Domestic Supply, Commercial Non-Domestic, Small Industrial Power, and EV Charging Station connections. It calculates energy charges, phase-based residential fixed charges, sanctioned-load-based demand charges, 5% Electricity Duty, and the estimated net payable amount.
The tool is especially useful because domestic electricity consumption is calculated through telescopic slabs. Instead of multiplying every unit by the highest rate reached, it divides consumption across the applicable tariff brackets.
What Is the Sikkim Electricity Bill Calculator?
The calculator estimates a monthly electricity bill using the following information:
- Consumer connection category
- Monthly electricity consumption in kWh
- Single Phase or Three Phase status for Domestic Supply
- Sanctioned load in kW for Commercial and Industrial connections
- Applicable energy tariff and fixed charge
- Configured 5% State Electricity Duty
After receiving these details, the calculator prepares an itemized report showing the basic energy charge, fixed or demand charge, Electricity Duty, and estimated total bill.
Sikkim Domestic Electricity Tariff
| Monthly Consumption | Energy Rate |
|---|---|
| 0–50 units | ₹1.10 per unit |
| 51–100 units | ₹2.10 per unit |
| 101–200 units | ₹3.10 per unit |
| Above 200 units | ₹4.10 per unit |
The supplied Domestic fixed monthly charges are:
- Single Phase connection: ₹50 per month
- Three Phase connection: ₹200 per month
The fixed charge depends on the consumer’s phase and does not change according to monthly consumption.
Example: Domestic Consumer Using 220 Units
The telescopic energy-charge calculation is:
- First 50 units: 50 × ₹1.10 = ₹55
- Next 50 units: 50 × ₹2.10 = ₹105
- Next 100 units: 100 × ₹3.10 = ₹310
- Remaining 20 units: 20 × ₹4.10 = ₹82
- Total energy charge: ₹552
For a Single Phase connection, the ₹50 fixed charge produces a subtotal of ₹602. Applying the configured 5% Electricity Duty to the energy-and-fixed-charge subtotal gives ₹30.10.
Illustrative Single Phase bill: ₹632.10
For a Three Phase connection, the ₹200 fixed charge produces a subtotal of ₹752. The illustrative duty is ₹37.60.
Illustrative Three Phase bill: ₹789.60
Commercial Non-Domestic Tariff
- 0–200 units: ₹5.50 per unit
- Above 200 units: ₹6.50 per unit
- Fixed demand charge: ₹100 per kW per month
- Electricity Duty: 5%
Under the supplied structure, Commercial consumption is calculated telescopically.
Example: Commercial Consumer Using 300 Units
For a connection using 300 units with a sanctioned load of 2 kW:
- First 200 units: 200 × ₹5.50 = ₹1,100
- Remaining 100 units: 100 × ₹6.50 = ₹650
- Total energy charge: ₹1,750
- Fixed demand charge: 2 × ₹100 = ₹200
- Subtotal before duty: ₹1,950
- Illustrative 5% duty: ₹97.50
- Illustrative estimated bill: ₹2,047.50
Small Industrial Power Tariff
- Energy charge: ₹4.50 per unit
- Fixed demand charge: ₹80 per kW per month
- Electricity Duty: 5%
For example, a Small Industrial connection using 500 units with a sanctioned load of 5 kW receives an energy charge of ₹2,250 and a demand charge of ₹400. The subtotal is ₹2,650, and the illustrative 5% duty is ₹132.50.
Illustrative estimated Industrial bill: ₹2,782.50
EV Charging Station Tariff
- Energy charge: ₹4.00 per unit
- Fixed charge: ₹0
- Billing cycle: Monthly
An EV charging station using 300 units receives a basic energy charge of ₹1,200. When the configured 5% duty is applied to this amount, the illustrative estimated total becomes ₹1,260.
How to Use the Sikkim Electricity Bill Calculator
Step 1: Select Domestic, Commercial, Small Industrial, or EV Charging.
Step 2: Domestic consumers should choose Single Phase or Three Phase.
Step 3: Enter the complete monthly electricity consumption.
Step 4: Commercial and Industrial consumers should enter sanctioned load in kW.
Step 5: Click Calculate Bill to view energy charges, fixed charges, Electricity Duty, and the estimated payable amount.
Why This Calculator Is Useful
- Calculates Domestic consumption through four telescopic slabs.
- Applies separate Single Phase and Three Phase fixed charges.
- Supports Commercial, Industrial, and EV Charging categories.
- Calculates sanctioned-load-based demand charges.
- Shows the configured 5% Electricity Duty separately.
- Provides a printable and downloadable itemized report.
Frequently Asked Questions
Does the calculator use a flat Domestic rate?
No. Domestic consumption is distributed telescopically across the ₹1.10, ₹2.10, ₹3.10, and ₹4.10 tariff brackets.
What is the Domestic Single Phase fixed charge?
The supplied Single Phase fixed monthly charge is ₹50.
What is the Domestic Three Phase fixed charge?
The supplied Three Phase fixed monthly charge is ₹200.
Where can I find my sanctioned load?
It is generally printed on the latest electricity bill or connection document.
Does the calculator support Gangtok consumers?
Yes. It is intended for eligible consumers in Gangtok and other covered Sikkim service areas.
Why can the official bill differ?
The official bill may include arrears, delayed payment surcharge, meter charges, penalties, security-deposit adjustments, revised tariffs, or rounding differences.
Meta Information
Meta Title: Sikkim Electricity Bill Calculator | SPDCL Bill
Meta Description: Calculate your Sikkim electricity bill using supplied FY 2026-27 Domestic, Commercial, Industrial and EV tariffs with fixed charges and 5% duty.
Focus Keyword: Sikkim Electricity Bill Calculator
Post Slug: sikkim-electricity-bill-calculator
Meta URL: /sikkim/sikkim-electricity-bill-calculator
Featured Image Alt Tag: Sikkim Electricity Bill Calculator showing Domestic slabs, phase-based charges, Commercial tariff and Electricity Duty
Featured Image Prompt
Create a premium glossy 3D electricity calculator poster in 1200×630 landscape format. Add large text reading “Sikkim Electricity Bill Calculator,” a smart digital electricity meter, a black calculator, rupee coins, and floating panels showing Domestic slabs, Single Phase ₹50, Three Phase ₹200, Commercial, Industrial, EV Charging, and 5% Duty. Include a glowing 3D map of Sikkim with location pins for Gangtok, Namchi, Geyzing, Mangan, and Pakyong. Use Himalayan mountains, green valleys, hydropower elements, transmission towers, cyan lighting, blue and orange accents, no people, no watermark, and no unrelated logos.
