All fictional examples

BILL EXPLAINER / FICTIONAL EXAMPLE

More days. Same daily average.

A 45-day example follows a 30-day example, both averaging 4 kWh per day.

CHANGE IN STATED TOTAL

+Rs 330.00

Higher than the previous fictional bill.

Previous example
Rs 660.00
Current example
Rs 990.00

Arithmetic matches the supplied fictional rules. This does not validate a real bill.

01 / ACCOUNT FOR THE DIFFERENCE

Where did the change come from?

The longer period accounts for Rs 300.00 in energy and Rs 30.00 in fixed charges. The same daily average does not mean consumption was identical every day.

  1. Energy: billing period

    +Rs 300.00

    Previous average kWh/day extended to the current period, at the previous rate.

    Fictional rule basis

  2. Fixed charges

    +Rs 30.00

    Current days × current daily charge, minus previous days × previous daily charge.

    Fictional rule basis
Total change+Rs 330.00
Show 4 unchanged components

  1. Energy: consumption

    Rs 0.00

    Current units minus that period-adjusted reference, at the previous rate.

    Fictional rule basis

  2. Energy: unit rate

    Rs 0.00

    Current kWh multiplied by the difference in unit rates.

    Fictional rule basis

  3. Documented demo credit

    Rs 0.00

    A credit subtracts from the total. Compare the two supplied credit amounts.

    Fictional rule basis

  4. Unexplained difference

    Rs 0.00

    Change in the gap between each stated total and its explained charges. Not a validated charge.

    Fictional rule basis

Allocation order: period at the previous daily average, consumption at the previous rate, then the rate change at current consumption. The period reference is rounded once to the nearest paise; consumption takes the remainder. This is an arithmetic decomposition, not a causal explanation of behaviour.

02 / NOTHING HIDDEN IN THE MATH

The supplied inputs.

One unit is one kWh in this demo. All amounts use integer paise. Each bill uses one flat rate for its entire period.

Previous example

Billing period
30 days
Consumption
120 kWh
Daily average
4.00 kWh/day
Energy
120 × Rs 5.00 = Rs 600.00
Fixed charge
30 × Rs 2.00 = Rs 60.00
Demo credit
Rs 0.00
Explained charges
Rs 660.00
Stated total
Rs 660.00
Unexplained amount
Rs 0.00
BB-DEMO-1 / BASE rules

Current example

Billing period
45 days
Consumption
180 kWh
Daily average
4.00 kWh/day
Energy
180 × Rs 5.00 = Rs 900.00
Fixed charge
45 × Rs 2.00 = Rs 90.00
Demo credit
Rs 0.00
Explained charges
Rs 990.00
Stated total
Rs 990.00
Unexplained amount
Rs 0.00
BB-DEMO-1 / BASE rules
Bindass Bol

Fictional bills and rules. Not valid for any real electricity bill.

A longer period: +Rs 330.00

Rs 660.00 → Rs 990.00. The longer period accounts for Rs 300.00 in energy and Rs 30.00 in fixed charges. The same daily average does not mean consumption was identical every day.

Question to ask: What start and end dates does this bill cover, and are any days also included in another bill?

Synthetic example: longer-period. Rules BB-DEMO-1, authored 5 October 2026 by Bindass Bol. No provider affiliation or real-bill verification.

/bill-demo/longer-period?locale=en
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An energy-rate change