Electricity Slab Rate Explained
Learn how slab pricing changes the effective rate per unit.
Quick Answer
A slab rate means different unit ranges are billed at different prices, so the average cost per unit can rise as consumption increases.
Key Points
- Lower slabs usually cover essential domestic usage at a lower rate.
- Once you cross a slab threshold, extra units are billed at the next rate band.
- Commercial and industrial categories often have separate slab logic.
- Your final bill can look higher even if the base rate appears unchanged.
Examples
Low slab example
A 90-unit month may stay in the first slab and keep the average bill lower.
Crossing a slab
A 220-unit month may push part of the usage into a higher slab, increasing the average cost.
Use This Guide for Better Bill Planning
- Read the billing concept here first, then open the provider calculator that matches your electricity board.
- Estimate one normal month and one peak-usage month to understand slab movement.
- If electricity is a meaningful part of the household budget, compare it against your salary and EMI outflow for the same month.
Frequently Asked Questions
What is a slab in electricity billing?+
A slab is a consumption band that applies a specific unit rate to that range of usage.
Do all providers use slabs?+
Most domestic electricity tariffs in India use slab-based pricing in some form.
How do I know my slab?+
Check your official utility tariff chart or use a provider-specific bill calculator.
Electricity Guides
How Electricity Bill Is Calculated
Concise explanation of the bill formula with examples and calculator links.
1 Unit Electricity Cost in India (1 kWh Price)
Check 1 unit (1 kWh) electricity price in India and estimate bill impact by state and slab.
Fixed Charge vs Energy Charge
See how fixed charges and energy charges affect the final bill.