All fictional examples

BILL EXPLAINER / FICTIONAL EXAMPLE

Look beyond the units.

Energy use is unchanged. The fictional daily fixed charge rises from Rs 2.00 to Rs 3.00.

CHANGE IN STATED TOTAL

+Rs 30.00

Higher than the previous fictional bill.

Previous example
Rs 660.00
Current example
Rs 690.00

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

01 / ACCOUNT FOR THE DIFFERENCE

Where did the change come from?

Thirty billed days at an extra Rs 1.00 per day add Rs 30.00. Real fixed charges may follow a different basis; this daily model is invented.

  1. Fixed charges

    +Rs 30.00

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

    Fictional rule basis
Total change+Rs 30.00
Show 5 unchanged components

  1. Energy: billing period

    Rs 0.00

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

    Fictional rule basis

  2. Energy: consumption

    Rs 0.00

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

    Fictional rule basis

  3. Energy: unit rate

    Rs 0.00

    Current kWh multiplied by the difference in unit rates.

    Fictional rule basis

  4. Documented demo credit

    Rs 0.00

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

    Fictional rule basis

  5. 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
30 days
Consumption
120 kWh
Daily average
4.00 kWh/day
Energy
120 × Rs 5.00 = Rs 600.00
Fixed charge
30 × Rs 3.00 = Rs 90.00
Demo credit
Rs 0.00
Explained charges
Rs 690.00
Stated total
Rs 690.00
Unexplained amount
Rs 0.00
BB-DEMO-1 / FIXED rules
Bindass Bol

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

A fixed-charge change: +Rs 30.00

Rs 660.00 → Rs 690.00. Thirty billed days at an extra Rs 1.00 per day add Rs 30.00. Real fixed charges may follow a different basis; this daily model is invented.

Question to ask: What is the fixed-charge basis, and which category, capacity and billed period were used?

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

/bill-demo/fixed-charge?locale=en
Download example image

Use your browser's Print command to print or save this explanation as a PDF. Labels and limitations remain visible. Only this fixed fictional example is shared.

Next fictional example
A documented credit