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West Bengal • Effective 2025-04-01

West Bengal Electricity Unit Rate (2026)

Domestic per-unit electricity prices in West Bengal range from ₹5.09 to ₹10.74 per kWh across WBSEDCL, CESC Kolkata. Latest slab rates verified against SERC orders.

Lowest slab

₹5.09

per unit (kWh)

Highest slab

₹10.74

per unit (kWh)

DISCOMs

2

in West Bengal

Full West Bengal bill calculator Compare states

Per-unit electricity rates by DISCOM

Energy charge only (excludes FAC, fixed charge and duty). For the all-in cost, use the bill calculator.

DISCOM Domestic slab 1 Domestic top slab Commercial slab 1 Effective @ 100u

WBSEDCL

Telescopic · Eff. 2025-04-01

 ₹5.26 ₹8.03 ₹8.60 ₹6.01 Rates

CESC Kolkata

Telescopic · Eff. 2025-04-01

 ₹5.09 ₹10.74 ₹8.35 ₹7.07 Rates

How West Bengal per-unit rates are set

The West Bengal State Electricity Regulatory Commission publishes an annual tariff order specifying slab rates, fixed charges, fuel adjustment formulas, and electricity duty for each DISCOM. For domestic consumers in West Bengal, WBSEDCL uses a telescopic billing structure — meaning each slab applies only to the units within that slab range.

The headline per-unit rate is only the energy charge. Your full bill also includes a fixed charge (typically ₹30/kW/month), Fuel & Power Purchase Cost Adjustment (FAC / FPPCA, set monthly) and an electricity duty of 0%. Together these can add 15–30% to the effective per-unit cost.

Tariffs are typically revised once a year, with mid-year FAC pass-through revisions for fuel cost volatility. We verify West Bengal rates against the official tariff order every quarter. Last verified: 2026-04-22.

Need the all-in cost?

The rate table on this page shows energy charges per kWh. For the actual rupee figure on your bill — including fixed charges, FAC, duty and any subsidy — use the West Bengal bill calculator. It applies the same slab method your DISCOM does.

West Bengal bill calculator
  • Slab-wise breakdown
  • Includes fixed + FAC + duty
  • Free · no signup

Per-unit rates apply across West Bengal

The slab rates listed here apply to consumers in major West Bengal cities and rural areas alike, including:

Kolkata suburbsHowrahDurgapurAsansolSiliguriKharagpur

West Bengal electricity rate — FAQs

Answers to the most common electricity bill questions in India.

What is the electricity unit rate in West Bengal in 2026?
As per the latest SERC tariff order, domestic electricity rates in West Bengal range from ₹5.09/unit (entry slab) to ₹10.74/unit (highest slab). Exact slab rates differ between DISCOMs — see the table on this page for WBSEDCL, CESC Kolkata.
How much does 1 unit (1 kWh) of electricity cost in West Bengal?
1 unit = 1 kWh in every Indian state including West Bengal. The cost of 1 unit at WBSEDCL starts at ₹5.26 for the first slab and rises with consumption. Add fixed charges, FAC and electricity duty to get the effective per-unit cost. See the 1-unit kWh calculator for a full breakdown.
Why does the per-unit rate change as I use more electricity?
West Bengal uses a telescopic slab structure for domestic consumers. Only the units that fall within each slab are charged at that slab's rate, so cheaper units stay cheap even as you climb slabs.
What is the commercial electricity rate in West Bengal?
Commercial (LT) rates in West Bengal typically start at ₹8.35/unit and go up to ₹10.85/unit, plus a higher fixed charge per kW than domestic. Industrial tariffs are usually flat-rate.
Do these unit rates include fixed charges and FAC?
No — the per-unit rates shown are the energy charge only. Your actual bill also includes a fixed charge (₹/kW of sanctioned load), Fuel Adjustment Charge (FAC, varies monthly), electricity duty (a percentage of energy charges), and sometimes meter rent. The effective per-unit rate is typically 15–30% higher. Use the bill calculator for the all-in figure.