
The Kerala Electricity Tariff FY 2025–26 is regulated by the Kerala State Electricity Regulatory Commission (KSERC) under the Multi-Year Tariff Order effective from 05 December 2024 to 31 March 2027. In addition to the applicable tariff rates, consumers are required to pay Electricity Duty at 10% of energy charges and Fuel Surcharge Adjustment (FSA) as revised periodically by the utility.
Domestic Electricity Tariff (LT-1)
Domestic consumers in Kerala are billed under a telescopic slab system, where different rates apply to different portions of monthly consumption.
| Consumption Slab | Energy Rate (₹/Unit) |
|---|---|
| 0–50 Units | ₹3.25 per unit |
| 51–100 Units | ₹4.05 per unit |
| 101–150 Units | ₹5.10 per unit |
| 151–200 Units | ₹6.95 per unit |
| 201–250 Units | ₹8.20 per unit |
| Above 250 Units | Higher flat rate applicable (Non-Telescopic Billing) |
Fixed Charges
| Consumer Category | Fixed Charge |
|---|---|
| Up to 40A | ₹20 per month |
| Above 40A | ₹25 per month |
Commercial Electricity Tariff (LT-3)
Commercial consumers, including shops, offices, retail establishments, and service providers, are billed according to the approved LT-3 tariff category.
| Category | Energy Charge | Fixed Charge |
|---|---|---|
| LT-3 Commercial | Approximately ₹7.50–₹8.00 per unit | ₹100 per month |
Note: Electricity Duty of 10% on energy charges is applicable in addition to the tariff.
Industrial Electricity Tariff (LT-4)
Low Tension industrial consumers are billed according to the LT-4 tariff category.
| Category | Energy Charge | Fixed Charge |
|---|---|---|
| LT-4 Industrial | Approximately ₹6.50–₹7.50 per unit (depending on load slab) | ₹120 per month |
Note: Time-of-Day (ToD) tariff is mandatory for all LT-IV industrial consumers.
Industrial High Tension (HT-II) Tariff
HT-II consumers represent a key category for commercial and industrial power users, including open access consumers.
| Category | Demand Charge | Energy Charge |
|---|---|---|
| HT-II Industrial | ₹415 per kVA per month | Time-of-Day based billing |
Additional Charges:
-
10% Electricity Duty on energy charges
-
Fuel Surcharge Adjustment (FSA) as applicable
Industrial Extra High Tension (EHT) Tariff
Extra High Tension consumers connected at 66 kV and above are billed under the EHT category.
| Category | Demand Charge | Energy Charge |
|---|---|---|
| EHT Industrial (66 kV and Above) | ₹410 per kVA per month | Time-of-Day based billing |
Typical EHT consumers include large manufacturing facilities, cement plants, paper mills, and rubber processing industries.
Time-of-Day (ToD) Tariff
Kerala has adopted a comprehensive Time-of-Day tariff framework to encourage electricity consumption during periods of high solar generation and reduce peak demand on the grid.
| ToD Provision | Details |
|---|---|
| Mandatory Consumers | All HT and EHT consumers, LT Industrial consumers, and 3-phase domestic consumers consuming above 250 units per month |
| Solar Hours | Typically 6:00 AM – 6:00 PM (Lower tariff) |
| Peak Hours | Evening peak period (Higher tariff) |
| Off-Peak Hours | Night-time base tariff |
| Daytime Incentive | 10% discount for eligible electricity consumption during solar hours |
| Full Implementation | Effective from 01 October 2025 |