Complete guide to electricity rates and appliance running costs in Kochi. Kerala tariff: ₹5.9/unit.
Telescopic slabs — each rate applies only to the units within that band.
| Monthly consumption | Energy charge |
|---|---|
| 0–50 units | ₹3.25/unit |
| 51–100 units | ₹4.05/unit |
| 101–150 units | ₹5.10/unit |
| 151–200 units | ₹6.95/unit |
| 201–250 units | ₹8.20/unit |
| Above 250 units | ₹8.80/unit |
Fixed charge
₹65/month (single-phase, up to 100u; rises by slab)
Electricity duty
10% on energy
Variable surcharge
FAC monthly
What this means for your AC: a 1.5-ton 5-star inverter AC draws roughly 0.9 kW on average. Running it about 9 hours a day adds ~243 units a month. In Kochi, those extra units mostly fall in the ₹8.80/unit band, so the AC adds roughly ₹2,138 in energy charges per month — before duty and surcharge.
Source: KSERC Tariff Revision 2025-2027, effective 1 Apr 2025. Energy charges only; the variable surcharge above is revised periodically. Confirm the current rate on your latest bill.
Three things decide your monthly AC bill in Kochi: the local tariff (you pay ₹5.9/unit on the slab shown above), the efficiency of the unit (a 5-star inverter draws far less than an older 3-star of the same size), and your usage — with tropical monsoon conditions, households here run their AC around 9 hours a day through the peak months, and every extra hour adds directly to the bill.
The biggest lever most people miss is right-sizing: an undersized AC runs flat-out and never quite cools, while an oversized one short-cycles and wastes power. Match the tonnage to your room with the tonnage calculator, then pick the star rating that pays back for your hours using the BEE star rating guide. Set the thermostat near 24–26°C rather than the lowest setting, keep filters clean, and shade the outdoor unit — each meaningfully cuts consumption.
To see exactly what your own setup costs in Kochi, run your tonnage, star rating, and daily hours through the Kochi AC bill calculator — it applies the Kerala rate so the estimate reflects what you actually pay.
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