Leave a high-usage tier
The most expensive usage is removed first, lowering the average rate.
Complete 2026/27 tariff calculation
How much could a 30% consumption cut save you?
Every formula, coefficient, category and setting from the supplied reference file is preserved below. Enter your bill details to calculate the estimate and reduction scenario with the same calculation engine.
Open the full calculator↓Complete water and electricity calculator
Switch between water, electricity and account-type tabs to access every input, detail, table and chart.
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Why can a 30% usage cut reduce the bill by more?
Reduce linked charges
Usage-linked tax, sewer and duty items fall with the base charge.
Smart measurement
Online monitoring and leak detection make the reduction target measurable.
