# The Firozabad glass cluster profile's fuel bill column does not add to its printed total: which row is wrong?

Canonical: https://senseible.earth/answers/firozabad-profile-fuel-bill-column-does-not-add

The rows of the Firozabad profile's annual energy bill, from The Energy and Resources Institute (TERI), add to 6,825 million rupees (Rs), not the printed 7,185, a gap of 360. The energy column does add: 309,999 against 310,000 tonnes of oil equivalent (toe). I cannot tell which bill row is wrong, so quote the energy column.

## The rows

- Gas: 879,280 standard cubic metres a day, 264,663 toe a year, Rs 6,155 million
- Coal: 121 tonnes a day, 16,940 toe, Rs 22 million
- Pet coke: 36 tonnes a day, 11,340 toe, Rs 63 million
- Liquefied petroleum gas: 8 tonnes a day, 3,332 toe, Rs 19 million
- Kerosene: 21.5 kilolitres a day, 6,290 toe, Rs 113 million
- Diesel: 23.5 kilolitres a day, 7,434 toe, Rs 453 million
- Printed totals: 310,000 toe and Rs 7,185 million

## The sums

- Energy: 264,663 + 16,940 + 11,340 + 3,332 + 6,290 + 7,434 = 309,999. It matches the printed 310,000 within rounding.
- Bill: 6,155 + 22 + 63 + 19 + 113 + 453 = 6,825. The printed 7,185 is 360 higher, 5.0% of the printed total.

## Which row is wrong

I cannot tell. The profile gives no operating days. Gas at 879,280 x 365 is 320.9 million standard cubic metres, so I used a 365 day year where a daily figure is turned into tonnes. The prices below divide each row's annual bill by its annual toe, so operating days do not enter them. Implied bill per toe, from the profile's own rows:

- Coal Rs 1,299, pet coke Rs 5,556, liquefied petroleum gas Rs 5,702
- Kerosene Rs 17,965, gas Rs 23,256, diesel Rs 60,936
- Coal is 4.3 times cheaper per toe than pet coke, and liquefied petroleum gas 3.2 times cheaper than kerosene. Those gaps are large, and the profile gives no way to test them.
- The small rows imply coal near Rs 500 a tonne and liquefied petroleum gas near Rs 6,500 a tonne, far below any market price. The live Khurja page finds one bill printed a tenth of its energy charge, so these small rows may also look a tenth low. If so, quoting the energy column is the right choice. That is my reading, not the profile's.

## Why one small row does not close the gap

The 360 is bigger than the coal, pet coke, liquefied petroleum gas and kerosene rows taken one at a time. If the coal row alone were wrong, it would have to read 382, about Rs 8,650 a tonne on 44,165 tonnes, dearer than pet coke at about Rs 4,795. So one wrong coal row may not be the whole story. The gap could sit in the gas row, where it is 5.8%, or be spread across rows.

## What to quote

The energy column adds up, the bill column does not. For what gas or coal cost you, use your own invoices, not the cluster table.

## Implied price of coal and pet coke

- Coal: 121 tonnes x 365 = 44,165 tonnes; Rs 22 million / 44,165 = about Rs 498 a tonne
- Pet coke: 36 x 365 = 13,140 tonnes; Rs 63 million / 13,140 = about Rs 4,795 a tonne
- Ratio: 4,795 / 498 = 9.6 times, for two solid fuels burned for heat

A 365 day year is my assumption. At 330 days both prices rise by the same 10.6%, so the ratio does not change.

## What Senseible does here

Senseible reads fuel invoices and electricity bills into monthly records, so once you upload your gas, coal and diesel bills they sit month by month, which is the figure to use in place of a cluster table.

- [Firozabad glass cluster gas use and carbon](https://senseible.earth/answers/firozabad-glass-cluster-gas-use-and-carbon)
- [Khurja energy total: 18,442 or 16,192](https://senseible.earth/answers/khurja-pottery-energy-total-18442-or-16192)
- [Firozabad furnace counts: two tables differ](https://senseible.earth/answers/firozabad-profile-furnace-counts-two-tables)
- [Firozabad glass unit gas evidence for buyers](https://senseible.earth/answers/firozabad-glass-unit-gas-evidence-for-buyers)

Sources: [TERI, Cluster profile: Firozabad glass industries (SAMEEEKSHA)](https://sameeeksha.org/pdf/clusterprofile/Firozabad_Glass_Uttar_Pradesh.pdf)

Last reviewed 2026-11-06. Figures are from TERI's 2015 cluster profile, which describes the cluster at that time; fuels, kiln counts and prices have moved since. Treat them as typical, and check your own records before quoting.