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Kerala • Effective 2025-04-01

KSEB Per Unit Electricity Rate (2026)

Kerala State Electricity Board. Domestic per-unit rates from ₹3.25 to ₹8.80 per kWh — plus commercial and industrial slabs, FAC and duty. Latest SERC-approved tariff.

Slab 1 rate

₹3.25

first 50 units

Top slab

₹8.80

per unit

Eff. @ 100u

₹5.51

all-in /unit

Full KSEB bill calculator All Kerala rates

KSEB domestic slab rates

Energy charge per unit — the headline price you see on your bill. Excludes fixed, FAC and duty.

Slab (units / month) Energy rate (₹/unit)
1 – 50 ₹3.25
51 – 100 ₹4.05
101 – 150 ₹5.10
151 – 200 ₹6.95
201 – 250 ₹8.20
251 – 300 ₹6.40
301 – 350 ₹7.25
351 – 400 ₹7.60
401 – 500 ₹7.90
Above 500 ₹8.80
Fixed charges
Slab-based
FAC / FPPCA
₹0.20/unit
Electricity duty
10%
Telescopic
No

Commercial (LT) per-unit rates

For shops, offices and small businesses on a LT-2 / commercial connection.

Slab (units / month) Energy rate (₹/unit)
Above 0 ₹9.10
Fixed charges
₹85/kW/mo
FAC / FPPCA
₹0.20/unit
Electricity duty
10%
Telescopic
No

Industrial (LT) per-unit rates

For LT industrial consumers — typically a flat per-unit rate.

Slab (units / month) Energy rate (₹/unit)
Above 0 ₹7.40
Fixed charges
₹75/kW/mo
FAC / FPPCA
₹0.20/unit
Electricity duty
10%
Telescopic
No

Effective KSEB per-unit rate by consumption

All-in rate (energy + fixed @ 2 kW + FAC + duty) at common monthly consumption levels. Excludes subsidy.

At 50 units/month

₹5.46

≈ ₹273 bill

At 100 units/month

₹5.51

≈ ₹551 bill

At 150 units/month

₹6.38

≈ ₹958 bill

At 200 units/month

₹8.28

≈ ₹1,656 bill

At 300 units/month

₹7.54

≈ ₹2,261 bill

At 500 units/month

₹9.08

≈ ₹4,538 bill

At 1000 units/month

₹9.98

≈ ₹9,983 bill

For your actual figure with your sanctioned load and subsidy eligibility, use the KSEB bill calculator.

About KSEB tariff structure

Kerala State Electricity Board bills domestic consumers using a non-telescopic slab structure. Once your monthly consumption crosses a slab boundary, all units are billed at the higher slab rate — so it can pay to stay just under a slab edge.

Beyond energy charges, the KSEB bill includes a fixed charge of a load-band based amount on your sanctioned load, an FAC pass-through of ₹0.20/unit (revised monthly), and Kerala electricity duty of 10%.

We verify KSEB rates against the latest SERC tariff order quarterly. Last verified: 2026-04-22. Original source: official tariff order.

KSEB per-unit rate — common questions

Answers to the most common electricity bill questions in India.

What is the per unit electricity rate of KSEB in 2026?
KSEB domestic energy charges start at ₹3.25/unit for the first 50 units and rise to ₹8.80/unit at the highest slab. Slabs are non-telescopic — once you cross a slab, all units are billed at the higher rate. See the full slab table on this page. Effective 2025-04-01.
How much will 1 unit of electricity cost on my KSEB bill?
1 unit (1 kWh) is billed at the slab rate that applies to your monthly consumption — starting at ₹3.25/unit. The effective rate on your bill is higher because of fixed charges (₹—/kW), FAC, and electricity duty (10%). At a 100-unit monthly consumption, the all-in rate is roughly ₹5.51/unit.
What is the commercial per-unit rate for KSEB?
KSEB commercial (LT) energy charges start at ₹9.10/unit and go up to ₹9.10/unit. Commercial fixed charges are ₹85/kW/month — typically higher than domestic. Industrial (LT) is usually a flat ₹7.40/unit.
What is the FAC and electricity duty for KSEB?
KSEB currently passes through ₹0.20/unit as Fuel Adjustment Charge (FAC / FPPCA — varies monthly). Kerala electricity duty is 10% on the energy + fixed + FAC base. These add to your effective per-unit cost beyond the headline slab rate.
How often does KSEB change its per-unit rates?
Slab rates are revised through the annual SERC tariff order — typically effective from 1 April each financial year. The current KSEB rates are effective from 2025-04-01. FAC is revised more frequently (often monthly) to reflect fuel cost movements.