Slab billing is tiered, not flat. As your monthly units cross thresholds, effective cost can rise faster than expected. That is why even a small unit increase sometimes leads to a noticeable bill jump.
Why Slab Jump Happens
- Crossing threshold bands shifts part of usage into higher rates.
- Category treatment can change slab impact month to month.
- Users often overlook adjustment and tax lines while comparing totals.
How to Audit Slab Impact
- Compare current and previous units.
- Check if a slab threshold was crossed.
- Separate slab effect from FPA and taxes.
How to Reduce Slab Risk
- Track usage near cycle end.
- Control high-load appliance hours.
- Use efficient appliances and lighting.